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151,000
paulmach/orb
planar/area.go
Area
func Area(g orb.Geometry) float64 { // TODO: make faster non-centroid version. _, a := CentroidArea(g) return a }
go
func Area(g orb.Geometry) float64 { // TODO: make faster non-centroid version. _, a := CentroidArea(g) return a }
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// Area returns the area of the geometry in the 2d plane.
[ "Area", "returns", "the", "area", "of", "the", "geometry", "in", "the", "2d", "plane", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/planar/area.go#L13-L17
151,001
paulmach/orb
planar/area.go
CentroidArea
func CentroidArea(g orb.Geometry) (orb.Point, float64) { if g == nil { return orb.Point{}, 0 } switch g := g.(type) { case orb.Point: return multiPointCentroid(orb.MultiPoint{g}), 0 case orb.MultiPoint: return multiPointCentroid(g), 0 case orb.LineString: return multiLineStringCentroid(orb.MultiLineString{g}), 0 case orb.MultiLineString: return multiLineStringCentroid(g), 0 case orb.Ring: return ringCentroidArea(g) case orb.Polygon: return polygonCentroidArea(g) case orb.MultiPolygon: return multiPolygonCentroidArea(g) case orb.Collection: return collectionCentroidArea(g) case orb.Bound: return CentroidArea(g.ToRing()) } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
go
func CentroidArea(g orb.Geometry) (orb.Point, float64) { if g == nil { return orb.Point{}, 0 } switch g := g.(type) { case orb.Point: return multiPointCentroid(orb.MultiPoint{g}), 0 case orb.MultiPoint: return multiPointCentroid(g), 0 case orb.LineString: return multiLineStringCentroid(orb.MultiLineString{g}), 0 case orb.MultiLineString: return multiLineStringCentroid(g), 0 case orb.Ring: return ringCentroidArea(g) case orb.Polygon: return polygonCentroidArea(g) case orb.MultiPolygon: return multiPolygonCentroidArea(g) case orb.Collection: return collectionCentroidArea(g) case orb.Bound: return CentroidArea(g.ToRing()) } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
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// CentroidArea returns both the centroid and the area in the 2d plane. // Since the area is need for the centroid, return both. // Polygon area will always be >= zero. Ring area my be negative if it has // a clockwise winding orider.
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c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/planar/area.go#L23-L50
151,002
paulmach/orb
encoding/mvt/geometry.go
elMLS
func elMLS(mls orb.MultiLineString) int { c := 0 for _, ls := range mls { c += 2 + 2*len(ls) } return c }
go
func elMLS(mls orb.MultiLineString) int { c := 0 for _, ls := range mls { c += 2 + 2*len(ls) } return c }
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// functions to estimate encoded length
[ "functions", "to", "estimate", "encoded", "length" ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/mvt/geometry.go#L433-L440
151,003
paulmach/orb
encoding/mvt/marshal.go
Marshal
func Marshal(layers Layers) ([]byte, error) { vt := &vectortile.Tile{ Layers: make([]*vectortile.Tile_Layer, 0, len(layers)), } for _, l := range layers { v := l.Version e := l.Extent layer := &vectortile.Tile_Layer{ Name: &l.Name, Version: &v, Extent: &e, Features: make([]*vectortile.Tile_Feature, 0, len(l.Features)), } kve := newKeyValueEncoder() for i, f := range l.Features { t, g, err := encodeGeometry(f.Geometry) if err != nil { return nil, errors.WithMessage(err, fmt.Sprintf("layer %s: feature %d: error encoding geometry", l.Name, i)) } tags, err := encodeProperties(kve, f.Properties) if err != nil { return nil, errors.WithMessage(err, fmt.Sprintf("layer %s: feature %d: error encoding properties", l.Name, i)) } layer.Features = append(layer.Features, &vectortile.Tile_Feature{ Id: convertID(f.ID), Tags: tags, Type: &t, Geometry: g, }) } layer.Keys = kve.Keys layer.Values = kve.Values vt.Layers = append(vt.Layers, layer) } return proto.Marshal(vt) }
go
func Marshal(layers Layers) ([]byte, error) { vt := &vectortile.Tile{ Layers: make([]*vectortile.Tile_Layer, 0, len(layers)), } for _, l := range layers { v := l.Version e := l.Extent layer := &vectortile.Tile_Layer{ Name: &l.Name, Version: &v, Extent: &e, Features: make([]*vectortile.Tile_Feature, 0, len(l.Features)), } kve := newKeyValueEncoder() for i, f := range l.Features { t, g, err := encodeGeometry(f.Geometry) if err != nil { return nil, errors.WithMessage(err, fmt.Sprintf("layer %s: feature %d: error encoding geometry", l.Name, i)) } tags, err := encodeProperties(kve, f.Properties) if err != nil { return nil, errors.WithMessage(err, fmt.Sprintf("layer %s: feature %d: error encoding properties", l.Name, i)) } layer.Features = append(layer.Features, &vectortile.Tile_Feature{ Id: convertID(f.ID), Tags: tags, Type: &t, Geometry: g, }) } layer.Keys = kve.Keys layer.Values = kve.Values vt.Layers = append(vt.Layers, layer) } return proto.Marshal(vt) }
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// Marshal will take a set of layers and encode them into a Mapbox Vector Tile format.
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c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/mvt/marshal.go#L43-L85
151,004
paulmach/orb
encoding/wkt/wkt.go
MarshalString
func MarshalString(g orb.Geometry) string { buf := bytes.NewBuffer(nil) wkt(buf, g) return buf.String() }
go
func MarshalString(g orb.Geometry) string { buf := bytes.NewBuffer(nil) wkt(buf, g) return buf.String() }
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// MarshalString returns a WKT representation of the Geometry if possible.
[ "MarshalString", "returns", "a", "WKT", "representation", "of", "the", "Geometry", "if", "possible", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/wkt/wkt.go#L11-L16
151,005
paulmach/orb
planar/distance.go
Distance
func Distance(p1, p2 orb.Point) float64 { d0 := (p1[0] - p2[0]) d1 := (p1[1] - p2[1]) return math.Sqrt(d0*d0 + d1*d1) }
go
func Distance(p1, p2 orb.Point) float64 { d0 := (p1[0] - p2[0]) d1 := (p1[1] - p2[1]) return math.Sqrt(d0*d0 + d1*d1) }
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// Distance returns the distance between two points in 2d euclidean geometry.
[ "Distance", "returns", "the", "distance", "between", "two", "points", "in", "2d", "euclidean", "geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/planar/distance.go#L10-L14
151,006
paulmach/orb
planar/distance.go
DistanceSquared
func DistanceSquared(p1, p2 orb.Point) float64 { d0 := (p1[0] - p2[0]) d1 := (p1[1] - p2[1]) return d0*d0 + d1*d1 }
go
func DistanceSquared(p1, p2 orb.Point) float64 { d0 := (p1[0] - p2[0]) d1 := (p1[1] - p2[1]) return d0*d0 + d1*d1 }
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// DistanceSquared returns the square of the distance between two points in 2d euclidean geometry.
[ "DistanceSquared", "returns", "the", "square", "of", "the", "distance", "between", "two", "points", "in", "2d", "euclidean", "geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/planar/distance.go#L17-L21
151,007
paulmach/orb
geo/bound.go
NewBoundAroundPoint
func NewBoundAroundPoint(center orb.Point, distance float64) orb.Bound { radDist := distance / orb.EarthRadius radLat := deg2rad(center[1]) radLon := deg2rad(center[0]) minLat := radLat - radDist maxLat := radLat + radDist var minLon, maxLon float64 if minLat > minLatitude && maxLat < maxLatitude { deltaLon := math.Asin(math.Sin(radDist) / math.Cos(radLat)) minLon = radLon - deltaLon if minLon < minLongitude { minLon += 2 * math.Pi } maxLon = radLon + deltaLon if maxLon > maxLongitude { maxLon -= 2 * math.Pi } } else { minLat = math.Max(minLat, minLatitude) maxLat = math.Min(maxLat, maxLatitude) minLon = minLongitude maxLon = maxLongitude } return orb.Bound{ Min: orb.Point{rad2deg(minLon), rad2deg(minLat)}, Max: orb.Point{rad2deg(maxLon), rad2deg(maxLat)}, } }
go
func NewBoundAroundPoint(center orb.Point, distance float64) orb.Bound { radDist := distance / orb.EarthRadius radLat := deg2rad(center[1]) radLon := deg2rad(center[0]) minLat := radLat - radDist maxLat := radLat + radDist var minLon, maxLon float64 if minLat > minLatitude && maxLat < maxLatitude { deltaLon := math.Asin(math.Sin(radDist) / math.Cos(radLat)) minLon = radLon - deltaLon if minLon < minLongitude { minLon += 2 * math.Pi } maxLon = radLon + deltaLon if maxLon > maxLongitude { maxLon -= 2 * math.Pi } } else { minLat = math.Max(minLat, minLatitude) maxLat = math.Min(maxLat, maxLatitude) minLon = minLongitude maxLon = maxLongitude } return orb.Bound{ Min: orb.Point{rad2deg(minLon), rad2deg(minLat)}, Max: orb.Point{rad2deg(maxLon), rad2deg(maxLat)}, } }
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// NewBoundAroundPoint creates a new bound given a center point, // and a distance from the center point in meters.
[ "NewBoundAroundPoint", "creates", "a", "new", "bound", "given", "a", "center", "point", "and", "a", "distance", "from", "the", "center", "point", "in", "meters", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geo/bound.go#L11-L40
151,008
paulmach/orb
geo/bound.go
BoundPad
func BoundPad(b orb.Bound, meters float64) orb.Bound { dy := meters / 111131.75 dx := dy / math.Cos(deg2rad(b.Max[1])) dx = math.Max(dx, dy/math.Cos(deg2rad(b.Min[1]))) b.Min[0] -= dx b.Min[1] -= dy b.Max[0] += dx b.Max[1] += dy b.Min[0] = math.Max(b.Min[0], -180) b.Min[1] = math.Max(b.Min[1], -90) b.Max[0] = math.Min(b.Max[0], 180) b.Max[1] = math.Min(b.Max[1], 90) return b }
go
func BoundPad(b orb.Bound, meters float64) orb.Bound { dy := meters / 111131.75 dx := dy / math.Cos(deg2rad(b.Max[1])) dx = math.Max(dx, dy/math.Cos(deg2rad(b.Min[1]))) b.Min[0] -= dx b.Min[1] -= dy b.Max[0] += dx b.Max[1] += dy b.Min[0] = math.Max(b.Min[0], -180) b.Min[1] = math.Max(b.Min[1], -90) b.Max[0] = math.Min(b.Max[0], 180) b.Max[1] = math.Min(b.Max[1], 90) return b }
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// BoundPad expands the bound in all directions by the given amount of meters.
[ "BoundPad", "expands", "the", "bound", "in", "all", "directions", "by", "the", "given", "amount", "of", "meters", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geo/bound.go#L43-L61
151,009
paulmach/orb
geo/bound.go
BoundWidth
func BoundWidth(b orb.Bound) float64 { c := (b.Min[1] + b.Max[1]) / 2.0 s1 := orb.Point{b.Min[0], c} s2 := orb.Point{b.Max[0], c} return Distance(s1, s2) }
go
func BoundWidth(b orb.Bound) float64 { c := (b.Min[1] + b.Max[1]) / 2.0 s1 := orb.Point{b.Min[0], c} s2 := orb.Point{b.Max[0], c} return Distance(s1, s2) }
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// BoundWidth returns the approximate width in meters // of the center of the bound.
[ "BoundWidth", "returns", "the", "approximate", "width", "in", "meters", "of", "the", "center", "of", "the", "bound", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geo/bound.go#L70-L77
151,010
paulmach/orb
internal/mercator/mercator.go
ToPlanar
func ToPlanar(lng, lat float64, level uint32) (x, y float64) { maxtiles := float64(uint32(1 << level)) x = (lng/360.0 + 0.5) * maxtiles // bound it because we have a top of the world problem siny := math.Sin(lat * math.Pi / 180.0) if siny < -0.9999 { y = 0 } else if siny > 0.9999 { y = maxtiles - 1 } else { lat = 0.5 + 0.5*math.Log((1.0+siny)/(1.0-siny))/(-2*math.Pi) y = lat * maxtiles } return }
go
func ToPlanar(lng, lat float64, level uint32) (x, y float64) { maxtiles := float64(uint32(1 << level)) x = (lng/360.0 + 0.5) * maxtiles // bound it because we have a top of the world problem siny := math.Sin(lat * math.Pi / 180.0) if siny < -0.9999 { y = 0 } else if siny > 0.9999 { y = maxtiles - 1 } else { lat = 0.5 + 0.5*math.Log((1.0+siny)/(1.0-siny))/(-2*math.Pi) y = lat * maxtiles } return }
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// ToPlanar converts the point to geo world coordinates at the given live.
[ "ToPlanar", "converts", "the", "point", "to", "geo", "world", "coordinates", "at", "the", "given", "live", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/internal/mercator/mercator.go#L30-L47
151,011
paulmach/orb
internal/mercator/mercator.go
ToGeo
func ToGeo(x, y float64, level uint32) (lng, lat float64) { maxtiles := float64(uint32(1 << level)) lng = 360.0 * (x/maxtiles - 0.5) lat = 2.0*math.Atan(math.Exp(math.Pi-(2*math.Pi)*(y/maxtiles)))*(180.0/math.Pi) - 90.0 return lng, lat }
go
func ToGeo(x, y float64, level uint32) (lng, lat float64) { maxtiles := float64(uint32(1 << level)) lng = 360.0 * (x/maxtiles - 0.5) lat = 2.0*math.Atan(math.Exp(math.Pi-(2*math.Pi)*(y/maxtiles)))*(180.0/math.Pi) - 90.0 return lng, lat }
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// ToGeo projects world coordinates back to geo coordinates.
[ "ToGeo", "projects", "world", "coordinates", "back", "to", "geo", "coordinates", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/internal/mercator/mercator.go#L50-L57
151,012
paulmach/orb
clone.go
Clone
func Clone(g Geometry) Geometry { if g == nil { return nil } switch g := g.(type) { case Point: return g case MultiPoint: if g == nil { return nil } return g.Clone() case LineString: if g == nil { return nil } return g.Clone() case MultiLineString: if g == nil { return nil } return g.Clone() case Ring: if g == nil { return nil } return g.Clone() case Polygon: if g == nil { return nil } return g.Clone() case MultiPolygon: if g == nil { return nil } return g.Clone() case Collection: if g == nil { return nil } return g.Clone() case Bound: return g } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
go
func Clone(g Geometry) Geometry { if g == nil { return nil } switch g := g.(type) { case Point: return g case MultiPoint: if g == nil { return nil } return g.Clone() case LineString: if g == nil { return nil } return g.Clone() case MultiLineString: if g == nil { return nil } return g.Clone() case Ring: if g == nil { return nil } return g.Clone() case Polygon: if g == nil { return nil } return g.Clone() case MultiPolygon: if g == nil { return nil } return g.Clone() case Collection: if g == nil { return nil } return g.Clone() case Bound: return g } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
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// Clone will make a deep copy of the geometry.
[ "Clone", "will", "make", "a", "deep", "copy", "of", "the", "geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/clone.go#L8-L56
151,013
paulmach/orb
equal.go
Equal
func Equal(g1, g2 Geometry) bool { if g1 == nil || g2 == nil { return g1 == g2 } if g1.GeoJSONType() != g2.GeoJSONType() { return false } switch g1 := g1.(type) { case Point: return g1.Equal(g2.(Point)) case MultiPoint: return g1.Equal(g2.(MultiPoint)) case LineString: return g1.Equal(g2.(LineString)) case MultiLineString: return g1.Equal(g2.(MultiLineString)) case Ring: g2, ok := g2.(Ring) if !ok { return false } return g1.Equal(g2) case Polygon: g2, ok := g2.(Polygon) if !ok { return false } return g1.Equal(g2) case MultiPolygon: return g1.Equal(g2.(MultiPolygon)) case Collection: return g1.Equal(g2.(Collection)) case Bound: g2, ok := g2.(Bound) if !ok { return false } return g1.Equal(g2) } panic(fmt.Sprintf("geometry type not supported: %T", g1)) }
go
func Equal(g1, g2 Geometry) bool { if g1 == nil || g2 == nil { return g1 == g2 } if g1.GeoJSONType() != g2.GeoJSONType() { return false } switch g1 := g1.(type) { case Point: return g1.Equal(g2.(Point)) case MultiPoint: return g1.Equal(g2.(MultiPoint)) case LineString: return g1.Equal(g2.(LineString)) case MultiLineString: return g1.Equal(g2.(MultiLineString)) case Ring: g2, ok := g2.(Ring) if !ok { return false } return g1.Equal(g2) case Polygon: g2, ok := g2.(Polygon) if !ok { return false } return g1.Equal(g2) case MultiPolygon: return g1.Equal(g2.(MultiPolygon)) case Collection: return g1.Equal(g2.(Collection)) case Bound: g2, ok := g2.(Bound) if !ok { return false } return g1.Equal(g2) } panic(fmt.Sprintf("geometry type not supported: %T", g1)) }
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// Equal returns if the two geometrires are equal.
[ "Equal", "returns", "if", "the", "two", "geometrires", "are", "equal", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/equal.go#L8-L51
151,014
paulmach/orb
round.go
Round
func Round(g Geometry, factor ...int) Geometry { if g == nil { return nil } f := float64(DefaultRoundingFactor) if len(factor) > 0 { f = float64(factor[0]) } switch g := g.(type) { case Point: return Point{ math.Round(g[0]*f) / f, math.Round(g[1]*f) / f, } case MultiPoint: if g == nil { return nil } roundPoints([]Point(g), f) return g case LineString: if g == nil { return nil } roundPoints([]Point(g), f) return g case MultiLineString: if g == nil { return nil } for _, ls := range g { roundPoints([]Point(ls), f) } return g case Ring: if g == nil { return nil } roundPoints([]Point(g), f) return g case Polygon: if g == nil { return nil } for _, r := range g { roundPoints([]Point(r), f) } return g case MultiPolygon: if g == nil { return nil } for _, p := range g { for _, r := range p { roundPoints([]Point(r), f) } } return g case Collection: if g == nil { return nil } for i := range g { g[i] = Round(g[i], int(f)) } return g case Bound: return Bound{ Min: Point{ math.Round(g.Min[0]*f) / f, math.Round(g.Min[1]*f) / f, }, Max: Point{ math.Round(g.Max[0]*f) / f, math.Round(g.Max[1]*f) / f, }, } } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
go
func Round(g Geometry, factor ...int) Geometry { if g == nil { return nil } f := float64(DefaultRoundingFactor) if len(factor) > 0 { f = float64(factor[0]) } switch g := g.(type) { case Point: return Point{ math.Round(g[0]*f) / f, math.Round(g[1]*f) / f, } case MultiPoint: if g == nil { return nil } roundPoints([]Point(g), f) return g case LineString: if g == nil { return nil } roundPoints([]Point(g), f) return g case MultiLineString: if g == nil { return nil } for _, ls := range g { roundPoints([]Point(ls), f) } return g case Ring: if g == nil { return nil } roundPoints([]Point(g), f) return g case Polygon: if g == nil { return nil } for _, r := range g { roundPoints([]Point(r), f) } return g case MultiPolygon: if g == nil { return nil } for _, p := range g { for _, r := range p { roundPoints([]Point(r), f) } } return g case Collection: if g == nil { return nil } for i := range g { g[i] = Round(g[i], int(f)) } return g case Bound: return Bound{ Min: Point{ math.Round(g.Min[0]*f) / f, math.Round(g.Min[1]*f) / f, }, Max: Point{ math.Round(g.Max[0]*f) / f, math.Round(g.Max[1]*f) / f, }, } } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
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// Round will round all the coordinates of the geometry to the given factor. // The default is 6 decimal places.
[ "Round", "will", "round", "all", "the", "coordinates", "of", "the", "geometry", "to", "the", "given", "factor", ".", "The", "default", "is", "6", "decimal", "places", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/round.go#L10-L93
151,015
paulmach/orb
geojson/bbox.go
NewBBox
func NewBBox(b orb.Bound) BBox { return []float64{ b.Min[0], b.Min[1], b.Max[0], b.Max[1], } }
go
func NewBBox(b orb.Bound) BBox { return []float64{ b.Min[0], b.Min[1], b.Max[0], b.Max[1], } }
[ "func", "NewBBox", "(", "b", "orb", ".", "Bound", ")", "BBox", "{", "return", "[", "]", "float64", "{", "b", ".", "Min", "[", "0", "]", ",", "b", ".", "Min", "[", "1", "]", ",", "b", ".", "Max", "[", "0", "]", ",", "b", ".", "Max", "[", "1", "]", ",", "}", "\n", "}" ]
// NewBBox creates a bbox from a a bound.
[ "NewBBox", "creates", "a", "bbox", "from", "a", "a", "bound", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/bbox.go#L10-L15
151,016
paulmach/orb
geojson/bbox.go
Valid
func (bb BBox) Valid() bool { if bb == nil { return false } return len(bb) >= 4 && len(bb)%2 == 0 }
go
func (bb BBox) Valid() bool { if bb == nil { return false } return len(bb) >= 4 && len(bb)%2 == 0 }
[ "func", "(", "bb", "BBox", ")", "Valid", "(", ")", "bool", "{", "if", "bb", "==", "nil", "{", "return", "false", "\n", "}", "\n\n", "return", "len", "(", "bb", ")", ">=", "4", "&&", "len", "(", "bb", ")", "%", "2", "==", "0", "\n", "}" ]
// Valid checks if the bbox is present and has at least 4 elements.
[ "Valid", "checks", "if", "the", "bbox", "is", "present", "and", "has", "at", "least", "4", "elements", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/bbox.go#L18-L24
151,017
paulmach/orb
geojson/bbox.go
Bound
func (bb BBox) Bound() orb.Bound { if !bb.Valid() { return orb.Bound{} } mid := len(bb) / 2 return orb.Bound{ Min: orb.Point{bb[0], bb[1]}, Max: orb.Point{bb[mid], bb[mid+1]}, } }
go
func (bb BBox) Bound() orb.Bound { if !bb.Valid() { return orb.Bound{} } mid := len(bb) / 2 return orb.Bound{ Min: orb.Point{bb[0], bb[1]}, Max: orb.Point{bb[mid], bb[mid+1]}, } }
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// Bound returns the orb.Bound for the BBox.
[ "Bound", "returns", "the", "orb", ".", "Bound", "for", "the", "BBox", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/bbox.go#L27-L38
151,018
paulmach/orb
encoding/mvt/simplify.go
Simplify
func (ls Layers) Simplify(s orb.Simplifier) { for _, l := range ls { l.Simplify(s) } }
go
func (ls Layers) Simplify(s orb.Simplifier) { for _, l := range ls { l.Simplify(s) } }
[ "func", "(", "ls", "Layers", ")", "Simplify", "(", "s", "orb", ".", "Simplifier", ")", "{", "for", "_", ",", "l", ":=", "range", "ls", "{", "l", ".", "Simplify", "(", "s", ")", "\n", "}", "\n", "}" ]
// Simplify will run all the geometry of all the layers through the provided simplifer.
[ "Simplify", "will", "run", "all", "the", "geometry", "of", "all", "the", "layers", "through", "the", "provided", "simplifer", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/mvt/simplify.go#L9-L13
151,019
paulmach/orb
encoding/mvt/simplify.go
Simplify
func (l *Layer) Simplify(s orb.Simplifier) { count := 0 for _, f := range l.Features { g := s.Simplify(f.Geometry) if g == nil { continue } f.Geometry = g l.Features[count] = f count++ } l.Features = l.Features[:count] }
go
func (l *Layer) Simplify(s orb.Simplifier) { count := 0 for _, f := range l.Features { g := s.Simplify(f.Geometry) if g == nil { continue } f.Geometry = g l.Features[count] = f count++ } l.Features = l.Features[:count] }
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// Simplify will run the layer geometries through the simplifier.
[ "Simplify", "will", "run", "the", "layer", "geometries", "through", "the", "simplifier", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/mvt/simplify.go#L16-L30
151,020
paulmach/orb
quadtree/quadtree.go
Add
func (q *Quadtree) Add(p orb.Pointer) error { if p == nil { return nil } point := p.Point() if !q.bound.Contains(point) { return ErrPointOutsideOfBounds } if q.root == nil { q.root = &node{ Value: p, } return nil } q.add(q.root, p, p.Point(), // q.bound.Left(), q.bound.Right(), // q.bound.Bottom(), q.bound.Top(), q.bound.Min[0], q.bound.Max[0], q.bound.Min[1], q.bound.Max[1], ) return nil }
go
func (q *Quadtree) Add(p orb.Pointer) error { if p == nil { return nil } point := p.Point() if !q.bound.Contains(point) { return ErrPointOutsideOfBounds } if q.root == nil { q.root = &node{ Value: p, } return nil } q.add(q.root, p, p.Point(), // q.bound.Left(), q.bound.Right(), // q.bound.Bottom(), q.bound.Top(), q.bound.Min[0], q.bound.Max[0], q.bound.Min[1], q.bound.Max[1], ) return nil }
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// Add puts an object into the quad tree, must be within the quadtree bounds. // This function is not thread-safe, ie. multiple goroutines cannot insert into // a single quadtree.
[ "Add", "puts", "an", "object", "into", "the", "quad", "tree", "must", "be", "within", "the", "quadtree", "bounds", ".", "This", "function", "is", "not", "thread", "-", "safe", "ie", ".", "multiple", "goroutines", "cannot", "insert", "into", "a", "single", "quadtree", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/quadtree/quadtree.go#L53-L78
151,021
paulmach/orb
quadtree/quadtree.go
add
func (q *Quadtree) add(n *node, p orb.Pointer, point orb.Point, left, right, bottom, top float64) { i := 0 // figure which child of this internal node the point is in. if cy := (bottom + top) / 2.0; point[1] <= cy { top = cy i = 2 } else { bottom = cy } if cx := (left + right) / 2.0; point[0] >= cx { left = cx i++ } else { right = cx } if n.Children[i] == nil { n.Children[i] = &node{Value: p} return } // proceed down to the child to see if it's a leaf yet and we can add the pointer there. q.add(n.Children[i], p, point, left, right, bottom, top) }
go
func (q *Quadtree) add(n *node, p orb.Pointer, point orb.Point, left, right, bottom, top float64) { i := 0 // figure which child of this internal node the point is in. if cy := (bottom + top) / 2.0; point[1] <= cy { top = cy i = 2 } else { bottom = cy } if cx := (left + right) / 2.0; point[0] >= cx { left = cx i++ } else { right = cx } if n.Children[i] == nil { n.Children[i] = &node{Value: p} return } // proceed down to the child to see if it's a leaf yet and we can add the pointer there. q.add(n.Children[i], p, point, left, right, bottom, top) }
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// add is the recursive search to find a place to add the point
[ "add", "is", "the", "recursive", "search", "to", "find", "a", "place", "to", "add", "the", "point" ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/quadtree/quadtree.go#L81-L106
151,022
paulmach/orb
quadtree/quadtree.go
removeNode
func removeNode(n *node) { var i int for { i = -1 if n.Children[0] != nil { i = 0 } else if n.Children[1] != nil { i = 1 } else if n.Children[2] != nil { i = 2 } else if n.Children[3] != nil { i = 3 } if i == -1 { n.Value = nil return } if n.Children[i].Value == nil { n.Children[i] = nil continue } break } n.Value = n.Children[i].Value removeNode(n.Children[i]) }
go
func removeNode(n *node) { var i int for { i = -1 if n.Children[0] != nil { i = 0 } else if n.Children[1] != nil { i = 1 } else if n.Children[2] != nil { i = 2 } else if n.Children[3] != nil { i = 3 } if i == -1 { n.Value = nil return } if n.Children[i].Value == nil { n.Children[i] = nil continue } break } n.Value = n.Children[i].Value removeNode(n.Children[i]) }
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// removeNode is the recursive fixing up of the tree when we remove a node.
[ "removeNode", "is", "the", "recursive", "fixing", "up", "of", "the", "tree", "when", "we", "remove", "a", "node", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/quadtree/quadtree.go#L146-L175
151,023
paulmach/orb
quadtree/quadtree.go
InBoundMatching
func (q *Quadtree) InBoundMatching(buf []orb.Pointer, b orb.Bound, f FilterFunc) []orb.Pointer { if q.root == nil { return nil } var p []orb.Pointer if len(buf) > 0 { p = buf[:0] } v := &inBoundVisitor{ bound: &b, pointers: p, filter: f, } newVisit(v).Visit(q.root, // q.bound.Left(), q.bound.Right(), // q.bound.Bottom(), q.bound.Top(), q.bound.Min[0], q.bound.Max[0], q.bound.Min[1], q.bound.Max[1], ) return v.pointers }
go
func (q *Quadtree) InBoundMatching(buf []orb.Pointer, b orb.Bound, f FilterFunc) []orb.Pointer { if q.root == nil { return nil } var p []orb.Pointer if len(buf) > 0 { p = buf[:0] } v := &inBoundVisitor{ bound: &b, pointers: p, filter: f, } newVisit(v).Visit(q.root, // q.bound.Left(), q.bound.Right(), // q.bound.Bottom(), q.bound.Top(), q.bound.Min[0], q.bound.Max[0], q.bound.Min[1], q.bound.Max[1], ) return v.pointers }
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// InBoundMatching returns a slice with all the pointers in the quadtree that are // within the given bound and matching the give filter function. An optional buffer // parameter is provided to allow for the reuse of result slice memory. This function // is thread safe. Multiple goroutines can read from a pre-created tree.
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c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/quadtree/quadtree.go#L274-L297
151,024
paulmach/orb
planar/contains.go
RingContains
func RingContains(r orb.Ring, point orb.Point) bool { if !r.Bound().Contains(point) { return false } c, on := rayIntersect(point, r[0], r[len(r)-1]) if on { return true } for i := 0; i < len(r)-1; i++ { inter, on := rayIntersect(point, r[i], r[i+1]) if on { return true } if inter { c = !c } } return c }
go
func RingContains(r orb.Ring, point orb.Point) bool { if !r.Bound().Contains(point) { return false } c, on := rayIntersect(point, r[0], r[len(r)-1]) if on { return true } for i := 0; i < len(r)-1; i++ { inter, on := rayIntersect(point, r[i], r[i+1]) if on { return true } if inter { c = !c } } return c }
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// RingContains returns true if the point is inside the ring. // Points on the boundary are considered in.
[ "RingContains", "returns", "true", "if", "the", "point", "is", "inside", "the", "ring", ".", "Points", "on", "the", "boundary", "are", "considered", "in", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/planar/contains.go#L11-L33
151,025
paulmach/orb
planar/contains.go
PolygonContains
func PolygonContains(p orb.Polygon, point orb.Point) bool { if !RingContains(p[0], point) { return false } for i := 1; i < len(p); i++ { if RingContains(p[i], point) { return false } } return true }
go
func PolygonContains(p orb.Polygon, point orb.Point) bool { if !RingContains(p[0], point) { return false } for i := 1; i < len(p); i++ { if RingContains(p[i], point) { return false } } return true }
[ "func", "PolygonContains", "(", "p", "orb", ".", "Polygon", ",", "point", "orb", ".", "Point", ")", "bool", "{", "if", "!", "RingContains", "(", "p", "[", "0", "]", ",", "point", ")", "{", "return", "false", "\n", "}", "\n\n", "for", "i", ":=", "1", ";", "i", "<", "len", "(", "p", ")", ";", "i", "++", "{", "if", "RingContains", "(", "p", "[", "i", "]", ",", "point", ")", "{", "return", "false", "\n", "}", "\n", "}", "\n\n", "return", "true", "\n", "}" ]
// PolygonContains checks if the point is within the polygon. // Points on the boundary are considered in.
[ "PolygonContains", "checks", "if", "the", "point", "is", "within", "the", "polygon", ".", "Points", "on", "the", "boundary", "are", "considered", "in", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/planar/contains.go#L37-L49
151,026
paulmach/orb
planar/contains.go
MultiPolygonContains
func MultiPolygonContains(mp orb.MultiPolygon, point orb.Point) bool { for _, p := range mp { if PolygonContains(p, point) { return true } } return false }
go
func MultiPolygonContains(mp orb.MultiPolygon, point orb.Point) bool { for _, p := range mp { if PolygonContains(p, point) { return true } } return false }
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// MultiPolygonContains checks if the point is within the multi-polygon. // Points on the boundary are considered in.
[ "MultiPolygonContains", "checks", "if", "the", "point", "is", "within", "the", "multi", "-", "polygon", ".", "Points", "on", "the", "boundary", "are", "considered", "in", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/planar/contains.go#L53-L61
151,027
paulmach/orb
resample/line_string.go
Resample
func Resample(ls orb.LineString, df orb.DistanceFunc, totalPoints int) orb.LineString { if totalPoints <= 0 { return nil } ls, ret := resampleEdgeCases(ls, totalPoints) if ret { return ls } // precomputes the total distance and intermediate distances total, dists := precomputeDistances(ls, df) return resample(ls, dists, total, totalPoints) }
go
func Resample(ls orb.LineString, df orb.DistanceFunc, totalPoints int) orb.LineString { if totalPoints <= 0 { return nil } ls, ret := resampleEdgeCases(ls, totalPoints) if ret { return ls } // precomputes the total distance and intermediate distances total, dists := precomputeDistances(ls, df) return resample(ls, dists, total, totalPoints) }
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// Resample converts the line string into totalPoints-1 evenly spaced segments. // This function will modify the linestring input.
[ "Resample", "converts", "the", "line", "string", "into", "totalPoints", "-", "1", "evenly", "spaced", "segments", ".", "This", "function", "will", "modify", "the", "linestring", "input", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/resample/line_string.go#L11-L24
151,028
paulmach/orb
resample/line_string.go
ToInterval
func ToInterval(ls orb.LineString, df orb.DistanceFunc, dist float64) orb.LineString { if dist <= 0 { return nil } // precomputes the total distance and intermediate distances total, dists := precomputeDistances(ls, df) totalPoints := int(total/dist) + 1 ls, ret := resampleEdgeCases(ls, totalPoints) if ret { return ls } return resample(ls, dists, total, totalPoints) }
go
func ToInterval(ls orb.LineString, df orb.DistanceFunc, dist float64) orb.LineString { if dist <= 0 { return nil } // precomputes the total distance and intermediate distances total, dists := precomputeDistances(ls, df) totalPoints := int(total/dist) + 1 ls, ret := resampleEdgeCases(ls, totalPoints) if ret { return ls } return resample(ls, dists, total, totalPoints) }
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// ToInterval coverts the line string into evenly spaced points of // about the given distance. // This function will modify the linestring input.
[ "ToInterval", "coverts", "the", "line", "string", "into", "evenly", "spaced", "points", "of", "about", "the", "given", "distance", ".", "This", "function", "will", "modify", "the", "linestring", "input", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/resample/line_string.go#L29-L44
151,029
paulmach/orb
resample/line_string.go
resampleEdgeCases
func resampleEdgeCases(ls orb.LineString, totalPoints int) (orb.LineString, bool) { // degenerate case if len(ls) <= 1 { return ls, true } // if all the points are the same, treat as special case. equal := true for _, point := range ls { if !ls[0].Equal(point) { equal = false break } } if equal { if totalPoints > len(ls) { // extend to be requested length for len(ls) != totalPoints { ls = append(ls, ls[0]) } return ls, true } // contract to be requested length ls = ls[:totalPoints] return ls, true } return ls, false }
go
func resampleEdgeCases(ls orb.LineString, totalPoints int) (orb.LineString, bool) { // degenerate case if len(ls) <= 1 { return ls, true } // if all the points are the same, treat as special case. equal := true for _, point := range ls { if !ls[0].Equal(point) { equal = false break } } if equal { if totalPoints > len(ls) { // extend to be requested length for len(ls) != totalPoints { ls = append(ls, ls[0]) } return ls, true } // contract to be requested length ls = ls[:totalPoints] return ls, true } return ls, false }
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// resampleEdgeCases is used to handle edge case for // resampling like not enough points and the line string is all the same point. // will return nil if there are no edge cases. If return true if // one of these edge cases was found and handled.
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c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/resample/line_string.go#L95-L126
151,030
paulmach/orb
encoding/wkb/wkb.go
MustMarshal
func MustMarshal(geom orb.Geometry, byteOrder ...binary.ByteOrder) []byte { d, err := Marshal(geom, byteOrder...) if err != nil { panic(err) } return d }
go
func MustMarshal(geom orb.Geometry, byteOrder ...binary.ByteOrder) []byte { d, err := Marshal(geom, byteOrder...) if err != nil { panic(err) } return d }
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// MustMarshal will encode the geometry and panic on error. // Currently there is no reason to error during geometry marshalling.
[ "MustMarshal", "will", "encode", "the", "geometry", "and", "panic", "on", "error", ".", "Currently", "there", "is", "no", "reason", "to", "error", "during", "geometry", "marshalling", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/wkb/wkb.go#L45-L52
151,031
paulmach/orb
encoding/wkb/wkb.go
Marshal
func Marshal(geom orb.Geometry, byteOrder ...binary.ByteOrder) ([]byte, error) { buf := bytes.NewBuffer(make([]byte, 0, geomLength(geom))) e := NewEncoder(buf) if len(byteOrder) > 0 { e.SetByteOrder(byteOrder[0]) } err := e.Encode(geom) if err != nil { return nil, err } if buf.Len() == 0 { return nil, nil } return buf.Bytes(), nil }
go
func Marshal(geom orb.Geometry, byteOrder ...binary.ByteOrder) ([]byte, error) { buf := bytes.NewBuffer(make([]byte, 0, geomLength(geom))) e := NewEncoder(buf) if len(byteOrder) > 0 { e.SetByteOrder(byteOrder[0]) } err := e.Encode(geom) if err != nil { return nil, err } if buf.Len() == 0 { return nil, nil } return buf.Bytes(), nil }
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// Marshal encodes the geometry with the given byte order.
[ "Marshal", "encodes", "the", "geometry", "with", "the", "given", "byte", "order", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/wkb/wkb.go#L55-L74
151,032
paulmach/orb
encoding/wkb/wkb.go
NewEncoder
func NewEncoder(w io.Writer) *Encoder { return &Encoder{ w: w, order: DefaultByteOrder, } }
go
func NewEncoder(w io.Writer) *Encoder { return &Encoder{ w: w, order: DefaultByteOrder, } }
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// NewEncoder creates a new Encoder for the given writer
[ "NewEncoder", "creates", "a", "new", "Encoder", "for", "the", "given", "writer" ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/wkb/wkb.go#L77-L82
151,033
paulmach/orb
encoding/wkb/wkb.go
Encode
func (e *Encoder) Encode(geom orb.Geometry) error { if geom == nil { return nil } switch g := geom.(type) { // nil values should not write any data. Empty sizes will still // write and empty version of that type. case orb.MultiPoint: if g == nil { return nil } case orb.LineString: if g == nil { return nil } case orb.MultiLineString: if g == nil { return nil } case orb.Polygon: if g == nil { return nil } case orb.MultiPolygon: if g == nil { return nil } case orb.Collection: if g == nil { return nil } // deal with types that are not supported by wkb case orb.Ring: if g == nil { return nil } geom = orb.Polygon{g} case orb.Bound: geom = g.ToPolygon() } var b []byte if e.order == binary.LittleEndian { b = []byte{1} } else { b = []byte{0} } _, err := e.w.Write(b) if err != nil { return err } if e.buf == nil { e.buf = make([]byte, 16) } switch g := geom.(type) { case orb.Point: return e.writePoint(g) case orb.MultiPoint: return e.writeMultiPoint(g) case orb.LineString: return e.writeLineString(g) case orb.MultiLineString: return e.writeMultiLineString(g) case orb.Polygon: return e.writePolygon(g) case orb.MultiPolygon: return e.writeMultiPolygon(g) case orb.Collection: return e.writeCollection(g) } panic("unsupported type") }
go
func (e *Encoder) Encode(geom orb.Geometry) error { if geom == nil { return nil } switch g := geom.(type) { // nil values should not write any data. Empty sizes will still // write and empty version of that type. case orb.MultiPoint: if g == nil { return nil } case orb.LineString: if g == nil { return nil } case orb.MultiLineString: if g == nil { return nil } case orb.Polygon: if g == nil { return nil } case orb.MultiPolygon: if g == nil { return nil } case orb.Collection: if g == nil { return nil } // deal with types that are not supported by wkb case orb.Ring: if g == nil { return nil } geom = orb.Polygon{g} case orb.Bound: geom = g.ToPolygon() } var b []byte if e.order == binary.LittleEndian { b = []byte{1} } else { b = []byte{0} } _, err := e.w.Write(b) if err != nil { return err } if e.buf == nil { e.buf = make([]byte, 16) } switch g := geom.(type) { case orb.Point: return e.writePoint(g) case orb.MultiPoint: return e.writeMultiPoint(g) case orb.LineString: return e.writeLineString(g) case orb.MultiLineString: return e.writeMultiLineString(g) case orb.Polygon: return e.writePolygon(g) case orb.MultiPolygon: return e.writeMultiPolygon(g) case orb.Collection: return e.writeCollection(g) } panic("unsupported type") }
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// Encode will write the geometry encoded as WKB to the given writer.
[ "Encode", "will", "write", "the", "geometry", "encoded", "as", "WKB", "to", "the", "given", "writer", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/wkb/wkb.go#L91-L167
151,034
paulmach/orb
encoding/wkb/wkb.go
Unmarshal
func Unmarshal(b []byte) (orb.Geometry, error) { g, err := NewDecoder(bytes.NewReader(b)).Decode() if err == io.EOF || err == io.ErrUnexpectedEOF { return nil, ErrNotWKB } return g, err }
go
func Unmarshal(b []byte) (orb.Geometry, error) { g, err := NewDecoder(bytes.NewReader(b)).Decode() if err == io.EOF || err == io.ErrUnexpectedEOF { return nil, ErrNotWKB } return g, err }
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// Unmarshal will decode the type into a Geometry.
[ "Unmarshal", "will", "decode", "the", "type", "into", "a", "Geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/wkb/wkb.go#L175-L182
151,035
paulmach/orb
encoding/wkb/wkb.go
Decode
func (d *Decoder) Decode() (orb.Geometry, error) { byteOrder, typ, err := readByteOrderType(d.r) if err != nil { return nil, err } switch typ { case pointType: return readPoint(d.r, byteOrder) case multiPointType: return readMultiPoint(d.r, byteOrder) case lineStringType: return readLineString(d.r, byteOrder) case multiLineStringType: return readMultiLineString(d.r, byteOrder) case polygonType: return readPolygon(d.r, byteOrder) case multiPolygonType: return readMultiPolygon(d.r, byteOrder) case geometryCollectionType: return readCollection(d.r, byteOrder) } return nil, ErrUnsupportedGeometry }
go
func (d *Decoder) Decode() (orb.Geometry, error) { byteOrder, typ, err := readByteOrderType(d.r) if err != nil { return nil, err } switch typ { case pointType: return readPoint(d.r, byteOrder) case multiPointType: return readMultiPoint(d.r, byteOrder) case lineStringType: return readLineString(d.r, byteOrder) case multiLineStringType: return readMultiLineString(d.r, byteOrder) case polygonType: return readPolygon(d.r, byteOrder) case multiPolygonType: return readMultiPolygon(d.r, byteOrder) case geometryCollectionType: return readCollection(d.r, byteOrder) } return nil, ErrUnsupportedGeometry }
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// Decode will decode the next geometry off of the steam.
[ "Decode", "will", "decode", "the", "next", "geometry", "off", "of", "the", "steam", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/wkb/wkb.go#L192-L216
151,036
paulmach/orb
encoding/wkb/wkb.go
geomLength
func geomLength(geom orb.Geometry) int { switch g := geom.(type) { case orb.Point: return 21 case orb.MultiPoint: return 9 + 21*len(g) case orb.LineString: return 9 + 16*len(g) case orb.MultiLineString: sum := 0 for _, ls := range g { sum += 9 + 16*len(ls) } return 9 + sum case orb.Polygon: sum := 0 for _, r := range g { sum += 4 + 16*len(r) } return 9 + sum case orb.MultiPolygon: sum := 0 for _, c := range g { sum += geomLength(c) } return 9 + sum case orb.Collection: sum := 0 for _, c := range g { sum += geomLength(c) } return 9 + sum } return 0 }
go
func geomLength(geom orb.Geometry) int { switch g := geom.(type) { case orb.Point: return 21 case orb.MultiPoint: return 9 + 21*len(g) case orb.LineString: return 9 + 16*len(g) case orb.MultiLineString: sum := 0 for _, ls := range g { sum += 9 + 16*len(ls) } return 9 + sum case orb.Polygon: sum := 0 for _, r := range g { sum += 4 + 16*len(r) } return 9 + sum case orb.MultiPolygon: sum := 0 for _, c := range g { sum += geomLength(c) } return 9 + sum case orb.Collection: sum := 0 for _, c := range g { sum += geomLength(c) } return 9 + sum } return 0 }
[ "func", "geomLength", "(", "geom", "orb", ".", "Geometry", ")", "int", "{", "switch", "g", ":=", "geom", ".", "(", "type", ")", "{", "case", "orb", ".", "Point", ":", "return", "21", "\n", "case", "orb", ".", "MultiPoint", ":", "return", "9", "+", "21", "*", "len", "(", "g", ")", "\n", "case", "orb", ".", "LineString", ":", "return", "9", "+", "16", "*", "len", "(", "g", ")", "\n", "case", "orb", ".", "MultiLineString", ":", "sum", ":=", "0", "\n", "for", "_", ",", "ls", ":=", "range", "g", "{", "sum", "+=", "9", "+", "16", "*", "len", "(", "ls", ")", "\n", "}", "\n\n", "return", "9", "+", "sum", "\n", "case", "orb", ".", "Polygon", ":", "sum", ":=", "0", "\n", "for", "_", ",", "r", ":=", "range", "g", "{", "sum", "+=", "4", "+", "16", "*", "len", "(", "r", ")", "\n", "}", "\n\n", "return", "9", "+", "sum", "\n", "case", "orb", ".", "MultiPolygon", ":", "sum", ":=", "0", "\n", "for", "_", ",", "c", ":=", "range", "g", "{", "sum", "+=", "geomLength", "(", "c", ")", "\n", "}", "\n\n", "return", "9", "+", "sum", "\n", "case", "orb", ".", "Collection", ":", "sum", ":=", "0", "\n", "for", "_", ",", "c", ":=", "range", "g", "{", "sum", "+=", "geomLength", "(", "c", ")", "\n", "}", "\n\n", "return", "9", "+", "sum", "\n", "}", "\n\n", "return", "0", "\n", "}" ]
// geomLength helps to do preallocation during a marshal.
[ "geomLength", "helps", "to", "do", "preallocation", "during", "a", "marshal", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/wkb/wkb.go#L247-L286
151,037
paulmach/orb
geojson/geometry.go
NewGeometry
func NewGeometry(g orb.Geometry) *Geometry { jg := &Geometry{} switch g := g.(type) { case orb.Ring: jg.Coordinates = orb.Polygon{g} case orb.Bound: jg.Coordinates = g.ToPolygon() case orb.Collection: for _, c := range g { jg.Geometries = append(jg.Geometries, NewGeometry(c)) } jg.Type = g.GeoJSONType() default: jg.Coordinates = g } if jg.Coordinates != nil { jg.Type = jg.Coordinates.GeoJSONType() } return jg }
go
func NewGeometry(g orb.Geometry) *Geometry { jg := &Geometry{} switch g := g.(type) { case orb.Ring: jg.Coordinates = orb.Polygon{g} case orb.Bound: jg.Coordinates = g.ToPolygon() case orb.Collection: for _, c := range g { jg.Geometries = append(jg.Geometries, NewGeometry(c)) } jg.Type = g.GeoJSONType() default: jg.Coordinates = g } if jg.Coordinates != nil { jg.Type = jg.Coordinates.GeoJSONType() } return jg }
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// NewGeometry will create a Geometry object but will convert // the input into a GoeJSON geometry. For example, it will convert // Rings and Bounds into Polygons.
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c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/geometry.go#L20-L40
151,038
paulmach/orb
geojson/geometry.go
Geometry
func (g Geometry) Geometry() orb.Geometry { if g.Coordinates != nil { return g.Coordinates } c := make(orb.Collection, 0, len(g.Geometries)) for _, geom := range g.Geometries { c = append(c, geom.Geometry()) } return c }
go
func (g Geometry) Geometry() orb.Geometry { if g.Coordinates != nil { return g.Coordinates } c := make(orb.Collection, 0, len(g.Geometries)) for _, geom := range g.Geometries { c = append(c, geom.Geometry()) } return c }
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// Geometry returns the orb.Geometry for the geojson Geometry. // This will convert the "Geometries" into a orb.Collection if applicable.
[ "Geometry", "returns", "the", "orb", ".", "Geometry", "for", "the", "geojson", "Geometry", ".", "This", "will", "convert", "the", "Geometries", "into", "a", "orb", ".", "Collection", "if", "applicable", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/geometry.go#L44-L54
151,039
paulmach/orb
geojson/geometry.go
MarshalJSON
func (g Geometry) MarshalJSON() ([]byte, error) { if g.Coordinates == nil && len(g.Geometries) == 0 { return []byte(`null`), nil } ng := &jsonGeometryMarshall{} switch g := g.Coordinates.(type) { case orb.Ring: ng.Coordinates = orb.Polygon{g} case orb.Bound: ng.Coordinates = g.ToPolygon() case orb.Collection: ng.Geometries = make([]*Geometry, 0, len(g)) for _, c := range g { ng.Geometries = append(ng.Geometries, NewGeometry(c)) } ng.Type = g.GeoJSONType() default: ng.Coordinates = g } if ng.Coordinates != nil { ng.Type = ng.Coordinates.GeoJSONType() } if len(g.Geometries) > 0 { ng.Geometries = g.Geometries ng.Type = orb.Collection{}.GeoJSONType() } return json.Marshal(ng) }
go
func (g Geometry) MarshalJSON() ([]byte, error) { if g.Coordinates == nil && len(g.Geometries) == 0 { return []byte(`null`), nil } ng := &jsonGeometryMarshall{} switch g := g.Coordinates.(type) { case orb.Ring: ng.Coordinates = orb.Polygon{g} case orb.Bound: ng.Coordinates = g.ToPolygon() case orb.Collection: ng.Geometries = make([]*Geometry, 0, len(g)) for _, c := range g { ng.Geometries = append(ng.Geometries, NewGeometry(c)) } ng.Type = g.GeoJSONType() default: ng.Coordinates = g } if ng.Coordinates != nil { ng.Type = ng.Coordinates.GeoJSONType() } if len(g.Geometries) > 0 { ng.Geometries = g.Geometries ng.Type = orb.Collection{}.GeoJSONType() } return json.Marshal(ng) }
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// MarshalJSON will marshal the geometry into the correct json structure.
[ "MarshalJSON", "will", "marshal", "the", "geometry", "into", "the", "correct", "json", "structure", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/geometry.go#L57-L87
151,040
paulmach/orb
geojson/geometry.go
UnmarshalJSON
func (g *Geometry) UnmarshalJSON(data []byte) error { jg := &jsonGeometry{} err := json.Unmarshal(data, &jg) if err != nil { return err } switch jg.Type { case "Point": p := orb.Point{} err = json.Unmarshal(jg.Coordinates, &p) g.Coordinates = p case "MultiPoint": mp := orb.MultiPoint{} err = json.Unmarshal(jg.Coordinates, &mp) g.Coordinates = mp case "LineString": ls := orb.LineString{} err = json.Unmarshal(jg.Coordinates, &ls) g.Coordinates = ls case "MultiLineString": mls := orb.MultiLineString{} err = json.Unmarshal(jg.Coordinates, &mls) g.Coordinates = mls case "Polygon": p := orb.Polygon{} err = json.Unmarshal(jg.Coordinates, &p) g.Coordinates = p case "MultiPolygon": mp := orb.MultiPolygon{} err = json.Unmarshal(jg.Coordinates, &mp) g.Coordinates = mp case "GeometryCollection": g.Geometries = jg.Geometries default: return errors.New("geojson: invalid geometry") } return err }
go
func (g *Geometry) UnmarshalJSON(data []byte) error { jg := &jsonGeometry{} err := json.Unmarshal(data, &jg) if err != nil { return err } switch jg.Type { case "Point": p := orb.Point{} err = json.Unmarshal(jg.Coordinates, &p) g.Coordinates = p case "MultiPoint": mp := orb.MultiPoint{} err = json.Unmarshal(jg.Coordinates, &mp) g.Coordinates = mp case "LineString": ls := orb.LineString{} err = json.Unmarshal(jg.Coordinates, &ls) g.Coordinates = ls case "MultiLineString": mls := orb.MultiLineString{} err = json.Unmarshal(jg.Coordinates, &mls) g.Coordinates = mls case "Polygon": p := orb.Polygon{} err = json.Unmarshal(jg.Coordinates, &p) g.Coordinates = p case "MultiPolygon": mp := orb.MultiPolygon{} err = json.Unmarshal(jg.Coordinates, &mp) g.Coordinates = mp case "GeometryCollection": g.Geometries = jg.Geometries default: return errors.New("geojson: invalid geometry") } return err }
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// UnmarshalJSON will unmarshal the correct geometry from the json structure.
[ "UnmarshalJSON", "will", "unmarshal", "the", "correct", "geometry", "from", "the", "json", "structure", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/geometry.go#L102-L140
151,041
paulmach/orb
geojson/geometry.go
MarshalJSON
func (mp MultiPoint) MarshalJSON() ([]byte, error) { return json.Marshal(Geometry{Coordinates: orb.MultiPoint(mp)}) }
go
func (mp MultiPoint) MarshalJSON() ([]byte, error) { return json.Marshal(Geometry{Coordinates: orb.MultiPoint(mp)}) }
[ "func", "(", "mp", "MultiPoint", ")", "MarshalJSON", "(", ")", "(", "[", "]", "byte", ",", "error", ")", "{", "return", "json", ".", "Marshal", "(", "Geometry", "{", "Coordinates", ":", "orb", ".", "MultiPoint", "(", "mp", ")", "}", ")", "\n", "}" ]
// MarshalJSON will convert the MultiPoint into a GeoJSON MultiPoint geometry.
[ "MarshalJSON", "will", "convert", "the", "MultiPoint", "into", "a", "GeoJSON", "MultiPoint", "geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/geometry.go#L181-L183
151,042
paulmach/orb
geojson/geometry.go
MarshalJSON
func (ls LineString) MarshalJSON() ([]byte, error) { return json.Marshal(Geometry{Coordinates: orb.LineString(ls)}) }
go
func (ls LineString) MarshalJSON() ([]byte, error) { return json.Marshal(Geometry{Coordinates: orb.LineString(ls)}) }
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// MarshalJSON will convert the LineString into a GeoJSON LineString geometry.
[ "MarshalJSON", "will", "convert", "the", "LineString", "into", "a", "GeoJSON", "LineString", "geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/geometry.go#L211-L213
151,043
paulmach/orb
geojson/geometry.go
MarshalJSON
func (mls MultiLineString) MarshalJSON() ([]byte, error) { return json.Marshal(Geometry{Coordinates: orb.MultiLineString(mls)}) }
go
func (mls MultiLineString) MarshalJSON() ([]byte, error) { return json.Marshal(Geometry{Coordinates: orb.MultiLineString(mls)}) }
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// MarshalJSON will convert the MultiLineString into a GeoJSON MultiLineString geometry.
[ "MarshalJSON", "will", "convert", "the", "MultiLineString", "into", "a", "GeoJSON", "MultiLineString", "geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/geometry.go#L241-L243
151,044
paulmach/orb
geojson/geometry.go
MarshalJSON
func (p Polygon) MarshalJSON() ([]byte, error) { return json.Marshal(Geometry{Coordinates: orb.Polygon(p)}) }
go
func (p Polygon) MarshalJSON() ([]byte, error) { return json.Marshal(Geometry{Coordinates: orb.Polygon(p)}) }
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// MarshalJSON will convert the Polygon into a GeoJSON Polygon geometry.
[ "MarshalJSON", "will", "convert", "the", "Polygon", "into", "a", "GeoJSON", "Polygon", "geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/geometry.go#L271-L273
151,045
paulmach/orb
geojson/geometry.go
UnmarshalJSON
func (p *Polygon) UnmarshalJSON(data []byte) error { g := &Geometry{} err := json.Unmarshal(data, &g) if err != nil { return err } polygon, ok := g.Coordinates.(orb.Polygon) if !ok { return errors.New("geojson: not a Polygon type") } *p = Polygon(polygon) return nil }
go
func (p *Polygon) UnmarshalJSON(data []byte) error { g := &Geometry{} err := json.Unmarshal(data, &g) if err != nil { return err } polygon, ok := g.Coordinates.(orb.Polygon) if !ok { return errors.New("geojson: not a Polygon type") } *p = Polygon(polygon) return nil }
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// UnmarshalJSON will unmarshal the GeoJSON Polygon geometry.
[ "UnmarshalJSON", "will", "unmarshal", "the", "GeoJSON", "Polygon", "geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/geometry.go#L276-L290
151,046
paulmach/orb
clip/clip.go
ring
func ring(box orb.Bound, in orb.Ring) orb.Ring { var out orb.Ring if len(in) == 0 { return in } f := in[0] l := in[len(in)-1] initClosed := false if f == l { initClosed = true } for edge := 1; edge <= 8; edge <<= 1 { out = out[:0] loopTo := len(in) // if we're not a nice closed ring, don't implicitly close it. prev := in[loopTo-1] if !initClosed { prev = in[0] } prevInside := bitCode(box, prev)&edge == 0 for i := 0; i < loopTo; i++ { p := in[i] inside := bitCode(box, p)&edge == 0 // if segment goes through the clip window, add an intersection if inside != prevInside { i := intersect(box, edge, prev, p) out = append(out, i) } if inside { out = append(out, p) } prev = p prevInside = inside } if len(out) == 0 { return nil } in, out = out, in } out = in // swap back if initClosed { // need to make sure our output is also closed. if l := len(out); l != 0 { f := out[0] l := out[l-1] if f != l { out = append(out, f) } } } return out }
go
func ring(box orb.Bound, in orb.Ring) orb.Ring { var out orb.Ring if len(in) == 0 { return in } f := in[0] l := in[len(in)-1] initClosed := false if f == l { initClosed = true } for edge := 1; edge <= 8; edge <<= 1 { out = out[:0] loopTo := len(in) // if we're not a nice closed ring, don't implicitly close it. prev := in[loopTo-1] if !initClosed { prev = in[0] } prevInside := bitCode(box, prev)&edge == 0 for i := 0; i < loopTo; i++ { p := in[i] inside := bitCode(box, p)&edge == 0 // if segment goes through the clip window, add an intersection if inside != prevInside { i := intersect(box, edge, prev, p) out = append(out, i) } if inside { out = append(out, p) } prev = p prevInside = inside } if len(out) == 0 { return nil } in, out = out, in } out = in // swap back if initClosed { // need to make sure our output is also closed. if l := len(out); l != 0 { f := out[0] l := out[l-1] if f != l { out = append(out, f) } } } return out }
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// ring will clip the Ring into a smaller ring around the bounding box boundary.
[ "ring", "will", "clip", "the", "Ring", "into", "a", "smaller", "ring", "around", "the", "bounding", "box", "boundary", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/clip/clip.go#L85-L150
151,047
paulmach/orb
clip/clip.go
intersect
func intersect(box orb.Bound, edge int, a, b orb.Point) orb.Point { if edge&8 != 0 { // top return orb.Point{a[0] + (b[0]-a[0])*(box.Max[1]-a[1])/(b[1]-a[1]), box.Max[1]} } else if edge&4 != 0 { // bottom return orb.Point{a[0] + (b[0]-a[0])*(box.Min[1]-a[1])/(b[1]-a[1]), box.Min[1]} } else if edge&2 != 0 { // right return orb.Point{box.Max[0], a[1] + (b[1]-a[1])*(box.Max[0]-a[0])/(b[0]-a[0])} } else if edge&1 != 0 { // left return orb.Point{box.Min[0], a[1] + (b[1]-a[1])*(box.Min[0]-a[0])/(b[0]-a[0])} } panic("no edge??") }
go
func intersect(box orb.Bound, edge int, a, b orb.Point) orb.Point { if edge&8 != 0 { // top return orb.Point{a[0] + (b[0]-a[0])*(box.Max[1]-a[1])/(b[1]-a[1]), box.Max[1]} } else if edge&4 != 0 { // bottom return orb.Point{a[0] + (b[0]-a[0])*(box.Min[1]-a[1])/(b[1]-a[1]), box.Min[1]} } else if edge&2 != 0 { // right return orb.Point{box.Max[0], a[1] + (b[1]-a[1])*(box.Max[0]-a[0])/(b[0]-a[0])} } else if edge&1 != 0 { // left return orb.Point{box.Min[0], a[1] + (b[1]-a[1])*(box.Min[0]-a[0])/(b[0]-a[0])} } panic("no edge??") }
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// intersect a segment against one of the 4 lines that make up the bbox
[ "intersect", "a", "segment", "against", "one", "of", "the", "4", "lines", "that", "make", "up", "the", "bbox" ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/clip/clip.go#L192-L208
151,048
paulmach/orb
simplify/visvalingam.go
Visvalingam
func Visvalingam(threshold float64, minPointsToKeep int) *VisvalingamSimplifier { return &VisvalingamSimplifier{ Threshold: threshold, ToKeep: minPointsToKeep, } }
go
func Visvalingam(threshold float64, minPointsToKeep int) *VisvalingamSimplifier { return &VisvalingamSimplifier{ Threshold: threshold, ToKeep: minPointsToKeep, } }
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// Visvalingam creates a new VisvalingamSimplifier.
[ "Visvalingam", "creates", "a", "new", "VisvalingamSimplifier", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/simplify/visvalingam.go#L19-L24
151,049
paulmach/orb
multi_point.go
Clone
func (mp MultiPoint) Clone() MultiPoint { if mp == nil { return nil } points := make([]Point, len(mp)) copy(points, mp) return MultiPoint(points) }
go
func (mp MultiPoint) Clone() MultiPoint { if mp == nil { return nil } points := make([]Point, len(mp)) copy(points, mp) return MultiPoint(points) }
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// Clone returns a new copy of the points.
[ "Clone", "returns", "a", "new", "copy", "of", "the", "points", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/multi_point.go#L17-L26
151,050
paulmach/orb
multi_point.go
Bound
func (mp MultiPoint) Bound() Bound { if len(mp) == 0 { return emptyBound } b := Bound{mp[0], mp[0]} for _, p := range mp { b = b.Extend(p) } return b }
go
func (mp MultiPoint) Bound() Bound { if len(mp) == 0 { return emptyBound } b := Bound{mp[0], mp[0]} for _, p := range mp { b = b.Extend(p) } return b }
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// Bound returns a bound around the points. Uses rectangular coordinates.
[ "Bound", "returns", "a", "bound", "around", "the", "points", ".", "Uses", "rectangular", "coordinates", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/multi_point.go#L29-L40
151,051
paulmach/orb
multi_point.go
Equal
func (mp MultiPoint) Equal(multiPoint MultiPoint) bool { if len(mp) != len(multiPoint) { return false } for i := range mp { if !mp[i].Equal(multiPoint[i]) { return false } } return true }
go
func (mp MultiPoint) Equal(multiPoint MultiPoint) bool { if len(mp) != len(multiPoint) { return false } for i := range mp { if !mp[i].Equal(multiPoint[i]) { return false } } return true }
[ "func", "(", "mp", "MultiPoint", ")", "Equal", "(", "multiPoint", "MultiPoint", ")", "bool", "{", "if", "len", "(", "mp", ")", "!=", "len", "(", "multiPoint", ")", "{", "return", "false", "\n", "}", "\n\n", "for", "i", ":=", "range", "mp", "{", "if", "!", "mp", "[", "i", "]", ".", "Equal", "(", "multiPoint", "[", "i", "]", ")", "{", "return", "false", "\n", "}", "\n", "}", "\n\n", "return", "true", "\n", "}" ]
// Equal compares two MultiPoint objects. Returns true if lengths are the same // and all points are Equal, and in the same order.
[ "Equal", "compares", "two", "MultiPoint", "objects", ".", "Returns", "true", "if", "lengths", "are", "the", "same", "and", "all", "points", "are", "Equal", "and", "in", "the", "same", "order", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/multi_point.go#L44-L56
151,052
paulmach/orb
ring.go
Orientation
func (r Ring) Orientation() Orientation { area := 0.0 // This is a fast planar area computation, which is okay for this use. // implicitly move everything to near the origin to help with roundoff offsetX := r[0][0] offsetY := r[0][1] for i := 1; i < len(r)-1; i++ { area += (r[i][0]-offsetX)*(r[i+1][1]-offsetY) - (r[i+1][0]-offsetX)*(r[i][1]-offsetY) } if area > 0 { return CCW } if area < 0 { return CW } // degenerate case, no area return 0 }
go
func (r Ring) Orientation() Orientation { area := 0.0 // This is a fast planar area computation, which is okay for this use. // implicitly move everything to near the origin to help with roundoff offsetX := r[0][0] offsetY := r[0][1] for i := 1; i < len(r)-1; i++ { area += (r[i][0]-offsetX)*(r[i+1][1]-offsetY) - (r[i+1][0]-offsetX)*(r[i][1]-offsetY) } if area > 0 { return CCW } if area < 0 { return CW } // degenerate case, no area return 0 }
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// Orientation returns 1 if the the ring is in couter-clockwise order, // return -1 if the ring is the clockwise order and 0 if the ring is // degenerate and had no area.
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c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/ring.go#L38-L60
151,053
paulmach/orb
ring.go
Equal
func (r Ring) Equal(ring Ring) bool { return MultiPoint(r).Equal(MultiPoint(ring)) }
go
func (r Ring) Equal(ring Ring) bool { return MultiPoint(r).Equal(MultiPoint(ring)) }
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// Equal compares two rings. Returns true if lengths are the same // and all points are Equal.
[ "Equal", "compares", "two", "rings", ".", "Returns", "true", "if", "lengths", "are", "the", "same", "and", "all", "points", "are", "Equal", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/ring.go#L64-L66
151,054
paulmach/orb
ring.go
Clone
func (r Ring) Clone() Ring { if r == nil { return nil } ps := MultiPoint(r) return Ring(ps.Clone()) }
go
func (r Ring) Clone() Ring { if r == nil { return nil } ps := MultiPoint(r) return Ring(ps.Clone()) }
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// Clone returns a new copy of the ring.
[ "Clone", "returns", "a", "new", "copy", "of", "the", "ring", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/ring.go#L69-L76
151,055
paulmach/orb
geojson/properties.go
Clone
func (p Properties) Clone() Properties { n := make(Properties, len(p)) for k, v := range p { n[k] = v } return n }
go
func (p Properties) Clone() Properties { n := make(Properties, len(p)) for k, v := range p { n[k] = v } return n }
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// Clone returns a shallow copy of the properties.
[ "Clone", "returns", "a", "shallow", "copy", "of", "the", "properties", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/properties.go#L105-L112
151,056
paulmach/orb
planar/distance_from.go
DistanceFrom
func DistanceFrom(g orb.Geometry, p orb.Point) float64 { d, _ := DistanceFromWithIndex(g, p) return d }
go
func DistanceFrom(g orb.Geometry, p orb.Point) float64 { d, _ := DistanceFromWithIndex(g, p) return d }
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// DistanceFrom returns the distance from the boundary of the geometry in // the units of the geometry.
[ "DistanceFrom", "returns", "the", "distance", "from", "the", "boundary", "of", "the", "geometry", "in", "the", "units", "of", "the", "geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/planar/distance_from.go#L42-L45
151,057
paulmach/orb
planar/distance_from.go
DistanceFromWithIndex
func DistanceFromWithIndex(g orb.Geometry, p orb.Point) (float64, int) { if g == nil { return math.Inf(1), -1 } switch g := g.(type) { case orb.Point: return Distance(g, p), 0 case orb.MultiPoint: return multiPointDistanceFrom(g, p) case orb.LineString: return lineStringDistanceFrom(g, p) case orb.MultiLineString: dist := math.Inf(1) index := -1 for i, ls := range g { if d, _ := lineStringDistanceFrom(ls, p); d < dist { dist = d index = i } } return dist, index case orb.Ring: return lineStringDistanceFrom(orb.LineString(g), p) case orb.Polygon: return polygonDistanceFrom(g, p) case orb.MultiPolygon: dist := math.Inf(1) index := -1 for i, poly := range g { if d, _ := polygonDistanceFrom(poly, p); d < dist { dist = d index = i } } return dist, index case orb.Collection: dist := math.Inf(1) index := -1 for i, ge := range g { if d, _ := DistanceFromWithIndex(ge, p); d < dist { dist = d index = i } } return dist, index case orb.Bound: return DistanceFromWithIndex(g.ToRing(), p) } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
go
func DistanceFromWithIndex(g orb.Geometry, p orb.Point) (float64, int) { if g == nil { return math.Inf(1), -1 } switch g := g.(type) { case orb.Point: return Distance(g, p), 0 case orb.MultiPoint: return multiPointDistanceFrom(g, p) case orb.LineString: return lineStringDistanceFrom(g, p) case orb.MultiLineString: dist := math.Inf(1) index := -1 for i, ls := range g { if d, _ := lineStringDistanceFrom(ls, p); d < dist { dist = d index = i } } return dist, index case orb.Ring: return lineStringDistanceFrom(orb.LineString(g), p) case orb.Polygon: return polygonDistanceFrom(g, p) case orb.MultiPolygon: dist := math.Inf(1) index := -1 for i, poly := range g { if d, _ := polygonDistanceFrom(poly, p); d < dist { dist = d index = i } } return dist, index case orb.Collection: dist := math.Inf(1) index := -1 for i, ge := range g { if d, _ := DistanceFromWithIndex(ge, p); d < dist { dist = d index = i } } return dist, index case orb.Bound: return DistanceFromWithIndex(g.ToRing(), p) } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
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// DistanceFromWithIndex returns the minimum euclidean distance // from the boundary of the geometry plus the index of the sub-geometry // that was the match.
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c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/planar/distance_from.go#L50-L104
151,058
paulmach/orb
point.go
Equal
func (p Point) Equal(point Point) bool { return p[0] == point[0] && p[1] == point[1] }
go
func (p Point) Equal(point Point) bool { return p[0] == point[0] && p[1] == point[1] }
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// Equal checks if the point represents the same point or vector.
[ "Equal", "checks", "if", "the", "point", "represents", "the", "same", "point", "or", "vector", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/point.go#L49-L51
151,059
paulmach/orb
project/helpers.go
Geometry
func Geometry(g orb.Geometry, proj orb.Projection) orb.Geometry { if g == nil { return nil } switch g := g.(type) { case orb.Point: return Point(g, proj) case orb.MultiPoint: return MultiPoint(g, proj) case orb.LineString: return LineString(g, proj) case orb.MultiLineString: return MultiLineString(g, proj) case orb.Ring: return Ring(g, proj) case orb.Polygon: return Polygon(g, proj) case orb.MultiPolygon: return MultiPolygon(g, proj) case orb.Collection: return Collection(g, proj) case orb.Bound: return Bound(g, proj) } panic("geometry type not supported") }
go
func Geometry(g orb.Geometry, proj orb.Projection) orb.Geometry { if g == nil { return nil } switch g := g.(type) { case orb.Point: return Point(g, proj) case orb.MultiPoint: return MultiPoint(g, proj) case orb.LineString: return LineString(g, proj) case orb.MultiLineString: return MultiLineString(g, proj) case orb.Ring: return Ring(g, proj) case orb.Polygon: return Polygon(g, proj) case orb.MultiPolygon: return MultiPolygon(g, proj) case orb.Collection: return Collection(g, proj) case orb.Bound: return Bound(g, proj) } panic("geometry type not supported") }
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// Geometry is a helper to project any geomtry.
[ "Geometry", "is", "a", "helper", "to", "project", "any", "geomtry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/project/helpers.go#L8-L35
151,060
paulmach/orb
project/helpers.go
Point
func Point(p orb.Point, proj orb.Projection) orb.Point { return proj(p) }
go
func Point(p orb.Point, proj orb.Projection) orb.Point { return proj(p) }
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// Point is a helper to project an a point
[ "Point", "is", "a", "helper", "to", "project", "an", "a", "point" ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/project/helpers.go#L38-L40
151,061
paulmach/orb
project/helpers.go
MultiPoint
func MultiPoint(mp orb.MultiPoint, proj orb.Projection) orb.MultiPoint { for i := range mp { mp[i] = proj(mp[i]) } return mp }
go
func MultiPoint(mp orb.MultiPoint, proj orb.Projection) orb.MultiPoint { for i := range mp { mp[i] = proj(mp[i]) } return mp }
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// MultiPoint is a helper to project an entire multi point.
[ "MultiPoint", "is", "a", "helper", "to", "project", "an", "entire", "multi", "point", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/project/helpers.go#L43-L49
151,062
paulmach/orb
project/helpers.go
LineString
func LineString(ls orb.LineString, proj orb.Projection) orb.LineString { return orb.LineString(MultiPoint(orb.MultiPoint(ls), proj)) }
go
func LineString(ls orb.LineString, proj orb.Projection) orb.LineString { return orb.LineString(MultiPoint(orb.MultiPoint(ls), proj)) }
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// LineString is a helper to project an entire line string.
[ "LineString", "is", "a", "helper", "to", "project", "an", "entire", "line", "string", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/project/helpers.go#L52-L54
151,063
paulmach/orb
project/helpers.go
MultiLineString
func MultiLineString(mls orb.MultiLineString, proj orb.Projection) orb.MultiLineString { for i := range mls { mls[i] = LineString(mls[i], proj) } return mls }
go
func MultiLineString(mls orb.MultiLineString, proj orb.Projection) orb.MultiLineString { for i := range mls { mls[i] = LineString(mls[i], proj) } return mls }
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// MultiLineString is a helper to project an entire multi linestring.
[ "MultiLineString", "is", "a", "helper", "to", "project", "an", "entire", "multi", "linestring", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/project/helpers.go#L57-L63
151,064
paulmach/orb
project/helpers.go
Ring
func Ring(r orb.Ring, proj orb.Projection) orb.Ring { return orb.Ring(LineString(orb.LineString(r), proj)) }
go
func Ring(r orb.Ring, proj orb.Projection) orb.Ring { return orb.Ring(LineString(orb.LineString(r), proj)) }
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// Ring is a helper to project an entire ring.
[ "Ring", "is", "a", "helper", "to", "project", "an", "entire", "ring", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/project/helpers.go#L66-L68
151,065
paulmach/orb
project/helpers.go
Polygon
func Polygon(p orb.Polygon, proj orb.Projection) orb.Polygon { for i := range p { p[i] = Ring(p[i], proj) } return p }
go
func Polygon(p orb.Polygon, proj orb.Projection) orb.Polygon { for i := range p { p[i] = Ring(p[i], proj) } return p }
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// Polygon is a helper to project an entire polygon.
[ "Polygon", "is", "a", "helper", "to", "project", "an", "entire", "polygon", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/project/helpers.go#L71-L77
151,066
paulmach/orb
project/helpers.go
MultiPolygon
func MultiPolygon(mp orb.MultiPolygon, proj orb.Projection) orb.MultiPolygon { for i := range mp { mp[i] = Polygon(mp[i], proj) } return mp }
go
func MultiPolygon(mp orb.MultiPolygon, proj orb.Projection) orb.MultiPolygon { for i := range mp { mp[i] = Polygon(mp[i], proj) } return mp }
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// MultiPolygon is a helper to project an entire multi polygon.
[ "MultiPolygon", "is", "a", "helper", "to", "project", "an", "entire", "multi", "polygon", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/project/helpers.go#L80-L86
151,067
paulmach/orb
project/helpers.go
Collection
func Collection(c orb.Collection, proj orb.Projection) orb.Collection { for i := range c { c[i] = Geometry(c[i], proj) } return c }
go
func Collection(c orb.Collection, proj orb.Projection) orb.Collection { for i := range c { c[i] = Geometry(c[i], proj) } return c }
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// Collection is a helper to project a rectangle.
[ "Collection", "is", "a", "helper", "to", "project", "a", "rectangle", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/project/helpers.go#L89-L95
151,068
paulmach/orb
project/helpers.go
Bound
func Bound(bound orb.Bound, proj orb.Projection) orb.Bound { min := proj(bound.Min) return orb.Bound{Min: min, Max: min}.Extend(proj(bound.Max)) }
go
func Bound(bound orb.Bound, proj orb.Projection) orb.Bound { min := proj(bound.Min) return orb.Bound{Min: min, Max: min}.Extend(proj(bound.Max)) }
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// Bound is a helper to project a rectangle.
[ "Bound", "is", "a", "helper", "to", "project", "a", "rectangle", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/project/helpers.go#L98-L101
151,069
paulmach/orb
geojson/feature_collection.go
Append
func (fc *FeatureCollection) Append(feature *Feature) *FeatureCollection { fc.Features = append(fc.Features, feature) return fc }
go
func (fc *FeatureCollection) Append(feature *Feature) *FeatureCollection { fc.Features = append(fc.Features, feature) return fc }
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// Append appends a feature to the collection.
[ "Append", "appends", "a", "feature", "to", "the", "collection", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/feature_collection.go#L31-L34
151,070
paulmach/orb
multi_line_string.go
Bound
func (mls MultiLineString) Bound() Bound { if len(mls) == 0 { return emptyBound } bound := mls[0].Bound() for i := 1; i < len(mls); i++ { bound = bound.Union(mls[i].Bound()) } return bound }
go
func (mls MultiLineString) Bound() Bound { if len(mls) == 0 { return emptyBound } bound := mls[0].Bound() for i := 1; i < len(mls); i++ { bound = bound.Union(mls[i].Bound()) } return bound }
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// Bound returns a bound around all the line strings.
[ "Bound", "returns", "a", "bound", "around", "all", "the", "line", "strings", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/multi_line_string.go#L17-L28
151,071
paulmach/orb
multi_line_string.go
Equal
func (mls MultiLineString) Equal(multiLineString MultiLineString) bool { if len(mls) != len(multiLineString) { return false } for i, ls := range mls { if !ls.Equal(multiLineString[i]) { return false } } return true }
go
func (mls MultiLineString) Equal(multiLineString MultiLineString) bool { if len(mls) != len(multiLineString) { return false } for i, ls := range mls { if !ls.Equal(multiLineString[i]) { return false } } return true }
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// Equal compares two multi line strings. Returns true if lengths are the same // and all points are Equal.
[ "Equal", "compares", "two", "multi", "line", "strings", ".", "Returns", "true", "if", "lengths", "are", "the", "same", "and", "all", "points", "are", "Equal", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/multi_line_string.go#L32-L44
151,072
paulmach/orb
multi_line_string.go
Clone
func (mls MultiLineString) Clone() MultiLineString { if mls == nil { return nil } nmls := make(MultiLineString, 0, len(mls)) for _, ls := range mls { nmls = append(nmls, ls.Clone()) } return nmls }
go
func (mls MultiLineString) Clone() MultiLineString { if mls == nil { return nil } nmls := make(MultiLineString, 0, len(mls)) for _, ls := range mls { nmls = append(nmls, ls.Clone()) } return nmls }
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// Clone returns a new deep copy of the multi line string.
[ "Clone", "returns", "a", "new", "deep", "copy", "of", "the", "multi", "line", "string", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/multi_line_string.go#L47-L58
151,073
paulmach/orb
encoding/mvt/clip.go
Clip
func (ls Layers) Clip(box orb.Bound) { for _, l := range ls { l.Clip(box) } }
go
func (ls Layers) Clip(box orb.Bound) { for _, l := range ls { l.Clip(box) } }
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// Clip will clip all geometries in all layers to the given bounds.
[ "Clip", "will", "clip", "all", "geometries", "in", "all", "layers", "to", "the", "given", "bounds", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/mvt/clip.go#L18-L22
151,074
paulmach/orb
encoding/mvt/clip.go
Clip
func (l *Layer) Clip(box orb.Bound) { for _, f := range l.Features { g := clip.Geometry(box, f.Geometry) f.Geometry = g } }
go
func (l *Layer) Clip(box orb.Bound) { for _, f := range l.Features { g := clip.Geometry(box, f.Geometry) f.Geometry = g } }
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// Clip will clip all geometries in this layer to the given bounds.
[ "Clip", "will", "clip", "all", "geometries", "in", "this", "layer", "to", "the", "given", "bounds", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/encoding/mvt/clip.go#L25-L30
151,075
paulmach/orb
clip/smartclip/around_bound.go
aroundBound
func aroundBound( box orb.Bound, in orb.Ring, o orb.Orientation, ) orb.Ring { if o != orb.CCW && o != orb.CW { panic("invalid orientation") } if len(in) == 0 { return nil } next := nexts[o] f := in[0] l := in[len(in)-1] target := bitCodeOpen(box, f) current := bitCodeOpen(box, l) if target == 0 || current == 0 { panic("endpoints must be outside bound") } if current == target { // endpoints long an edge. Need to figure out what order they're in // to figure out if we just need to connect them or go all the way around. points := []*endpoint{ { Point: f, Start: true, Side: pointSide(box, f), Index: 0, }, { Point: l, Start: false, Side: pointSide(box, l), Index: 0, }, } se := &sortableEndpoints{ mls: []orb.LineString{orb.LineString(in)}, eps: points, } if o == orb.CCW { sort.Sort(se) } else { sort.Sort(sort.Reverse(se)) } if !points[0].Start { if f != in[len(in)-1] { in = append(in, f) } return in } } // move to next and go until we're all the way around. current = next[current] for target != current { in = append(in, pointFor(box, current)) current = next[current] } // add first point to the end to make it a ring in = append(in, f) return in }
go
func aroundBound( box orb.Bound, in orb.Ring, o orb.Orientation, ) orb.Ring { if o != orb.CCW && o != orb.CW { panic("invalid orientation") } if len(in) == 0 { return nil } next := nexts[o] f := in[0] l := in[len(in)-1] target := bitCodeOpen(box, f) current := bitCodeOpen(box, l) if target == 0 || current == 0 { panic("endpoints must be outside bound") } if current == target { // endpoints long an edge. Need to figure out what order they're in // to figure out if we just need to connect them or go all the way around. points := []*endpoint{ { Point: f, Start: true, Side: pointSide(box, f), Index: 0, }, { Point: l, Start: false, Side: pointSide(box, l), Index: 0, }, } se := &sortableEndpoints{ mls: []orb.LineString{orb.LineString(in)}, eps: points, } if o == orb.CCW { sort.Sort(se) } else { sort.Sort(sort.Reverse(se)) } if !points[0].Start { if f != in[len(in)-1] { in = append(in, f) } return in } } // move to next and go until we're all the way around. current = next[current] for target != current { in = append(in, pointFor(box, current)) current = next[current] } // add first point to the end to make it a ring in = append(in, f) return in }
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// aroundBound will connect the endpoints of the linestring provided // by wrapping the line around the bounds in the direction provided. // Will append to the input.
[ "aroundBound", "will", "connect", "the", "endpoints", "of", "the", "linestring", "provided", "by", "wrapping", "the", "line", "around", "the", "bounds", "in", "the", "direction", "provided", ".", "Will", "append", "to", "the", "input", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/clip/smartclip/around_bound.go#L12-L84
151,076
paulmach/orb
clip/smartclip/around_bound.go
pointFor
func pointFor(b orb.Bound, code int) orb.Point { switch code { case 1: return orb.Point{b.Min[0], (b.Max[1] + b.Min[1]) / 2} case 2: return orb.Point{b.Max[0], (b.Max[1] + b.Min[1]) / 2} case 4: return orb.Point{(b.Max[0] + b.Min[0]) / 2, b.Min[1]} case 5: return orb.Point{b.Min[0], b.Min[1]} case 6: return orb.Point{b.Max[0], b.Min[1]} case 8: return orb.Point{(b.Max[0] + b.Min[0]) / 2, b.Max[1]} case 9: return orb.Point{b.Min[0], b.Max[1]} case 10: return orb.Point{b.Max[0], b.Max[1]} } panic("invalid code") }
go
func pointFor(b orb.Bound, code int) orb.Point { switch code { case 1: return orb.Point{b.Min[0], (b.Max[1] + b.Min[1]) / 2} case 2: return orb.Point{b.Max[0], (b.Max[1] + b.Min[1]) / 2} case 4: return orb.Point{(b.Max[0] + b.Min[0]) / 2, b.Min[1]} case 5: return orb.Point{b.Min[0], b.Min[1]} case 6: return orb.Point{b.Max[0], b.Min[1]} case 8: return orb.Point{(b.Max[0] + b.Min[0]) / 2, b.Max[1]} case 9: return orb.Point{b.Min[0], b.Max[1]} case 10: return orb.Point{b.Max[0], b.Max[1]} } panic("invalid code") }
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// pointFor returns a representative point for the side of the given bitCode.
[ "pointFor", "returns", "a", "representative", "point", "for", "the", "side", "of", "the", "given", "bitCode", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/clip/smartclip/around_bound.go#L110-L131
151,077
paulmach/orb
line_string.go
Reverse
func (ls LineString) Reverse() { l := len(ls) - 1 for i := 0; i <= l/2; i++ { ls[i], ls[l-i] = ls[l-i], ls[i] } }
go
func (ls LineString) Reverse() { l := len(ls) - 1 for i := 0; i <= l/2; i++ { ls[i], ls[l-i] = ls[l-i], ls[i] } }
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// Reverse will reverse the line string. // This is done inplace, ie. it modifies the original data.
[ "Reverse", "will", "reverse", "the", "line", "string", ".", "This", "is", "done", "inplace", "ie", ".", "it", "modifies", "the", "original", "data", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/line_string.go#L18-L23
151,078
paulmach/orb
line_string.go
Equal
func (ls LineString) Equal(lineString LineString) bool { return MultiPoint(ls).Equal(MultiPoint(lineString)) }
go
func (ls LineString) Equal(lineString LineString) bool { return MultiPoint(ls).Equal(MultiPoint(lineString)) }
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// Equal compares two line strings. Returns true if lengths are the same // and all points are Equal.
[ "Equal", "compares", "two", "line", "strings", ".", "Returns", "true", "if", "lengths", "are", "the", "same", "and", "all", "points", "are", "Equal", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/line_string.go#L32-L34
151,079
paulmach/orb
line_string.go
Clone
func (ls LineString) Clone() LineString { ps := MultiPoint(ls) return LineString(ps.Clone()) }
go
func (ls LineString) Clone() LineString { ps := MultiPoint(ls) return LineString(ps.Clone()) }
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// Clone returns a new copy of the line string.
[ "Clone", "returns", "a", "new", "copy", "of", "the", "line", "string", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/line_string.go#L37-L40
151,080
paulmach/orb
geo/distance.go
Distance
func Distance(p1, p2 orb.Point) float64 { dLat := deg2rad(p1[1] - p2[1]) dLon := deg2rad(p1[0] - p2[0]) dLon = math.Abs(dLon) if dLon > math.Pi { dLon = 2*math.Pi - dLon } // fast way using pythagorean theorem on an equirectangular projection x := dLon * math.Cos(deg2rad((p1[1]+p2[1])/2.0)) return math.Sqrt(dLat*dLat+x*x) * orb.EarthRadius }
go
func Distance(p1, p2 orb.Point) float64 { dLat := deg2rad(p1[1] - p2[1]) dLon := deg2rad(p1[0] - p2[0]) dLon = math.Abs(dLon) if dLon > math.Pi { dLon = 2*math.Pi - dLon } // fast way using pythagorean theorem on an equirectangular projection x := dLon * math.Cos(deg2rad((p1[1]+p2[1])/2.0)) return math.Sqrt(dLat*dLat+x*x) * orb.EarthRadius }
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// Distance returns the distance between two points on the earth.
[ "Distance", "returns", "the", "distance", "between", "two", "points", "on", "the", "earth", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geo/distance.go#L10-L22
151,081
paulmach/orb
geo/distance.go
DistanceHaversine
func DistanceHaversine(p1, p2 orb.Point) float64 { dLat := deg2rad(p1[1] - p2[1]) dLon := deg2rad(p1[0] - p2[0]) dLat2Sin := math.Sin(dLat / 2) dLon2Sin := math.Sin(dLon / 2) a := dLat2Sin*dLat2Sin + math.Cos(deg2rad(p2[1]))*math.Cos(deg2rad(p1[1]))*dLon2Sin*dLon2Sin return 2.0 * orb.EarthRadius * math.Atan2(math.Sqrt(a), math.Sqrt(1-a)) }
go
func DistanceHaversine(p1, p2 orb.Point) float64 { dLat := deg2rad(p1[1] - p2[1]) dLon := deg2rad(p1[0] - p2[0]) dLat2Sin := math.Sin(dLat / 2) dLon2Sin := math.Sin(dLon / 2) a := dLat2Sin*dLat2Sin + math.Cos(deg2rad(p2[1]))*math.Cos(deg2rad(p1[1]))*dLon2Sin*dLon2Sin return 2.0 * orb.EarthRadius * math.Atan2(math.Sqrt(a), math.Sqrt(1-a)) }
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// DistanceHaversine computes the distance on the earth using the // more accurate haversine formula.
[ "DistanceHaversine", "computes", "the", "distance", "on", "the", "earth", "using", "the", "more", "accurate", "haversine", "formula", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geo/distance.go#L26-L35
151,082
paulmach/orb
geo/distance.go
Bearing
func Bearing(from, to orb.Point) float64 { dLon := deg2rad(to[0] - from[0]) fromLatRad := deg2rad(from[1]) toLatRad := deg2rad(to[1]) y := math.Sin(dLon) * math.Cos(toLatRad) x := math.Cos(fromLatRad)*math.Sin(toLatRad) - math.Sin(fromLatRad)*math.Cos(toLatRad)*math.Cos(dLon) return rad2deg(math.Atan2(y, x)) }
go
func Bearing(from, to orb.Point) float64 { dLon := deg2rad(to[0] - from[0]) fromLatRad := deg2rad(from[1]) toLatRad := deg2rad(to[1]) y := math.Sin(dLon) * math.Cos(toLatRad) x := math.Cos(fromLatRad)*math.Sin(toLatRad) - math.Sin(fromLatRad)*math.Cos(toLatRad)*math.Cos(dLon) return rad2deg(math.Atan2(y, x)) }
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// Bearing computes the direction one must start traveling on earth // to be heading from, to the given points.
[ "Bearing", "computes", "the", "direction", "one", "must", "start", "traveling", "on", "earth", "to", "be", "heading", "from", "to", "the", "given", "points", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geo/distance.go#L39-L49
151,083
paulmach/orb
geo/distance.go
Midpoint
func Midpoint(p, p2 orb.Point) orb.Point { dLon := deg2rad(p2[0] - p[0]) aLatRad := deg2rad(p[1]) bLatRad := deg2rad(p2[1]) x := math.Cos(bLatRad) * math.Cos(dLon) y := math.Cos(bLatRad) * math.Sin(dLon) r := orb.Point{ deg2rad(p[0]) + math.Atan2(y, math.Cos(aLatRad)+x), math.Atan2(math.Sin(aLatRad)+math.Sin(bLatRad), math.Sqrt((math.Cos(aLatRad)+x)*(math.Cos(aLatRad)+x)+y*y)), } // convert back to degrees r[0] = rad2deg(r[0]) r[1] = rad2deg(r[1]) return r }
go
func Midpoint(p, p2 orb.Point) orb.Point { dLon := deg2rad(p2[0] - p[0]) aLatRad := deg2rad(p[1]) bLatRad := deg2rad(p2[1]) x := math.Cos(bLatRad) * math.Cos(dLon) y := math.Cos(bLatRad) * math.Sin(dLon) r := orb.Point{ deg2rad(p[0]) + math.Atan2(y, math.Cos(aLatRad)+x), math.Atan2(math.Sin(aLatRad)+math.Sin(bLatRad), math.Sqrt((math.Cos(aLatRad)+x)*(math.Cos(aLatRad)+x)+y*y)), } // convert back to degrees r[0] = rad2deg(r[0]) r[1] = rad2deg(r[1]) return r }
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// Midpoint returns the half-way point along a great circle path between the two points.
[ "Midpoint", "returns", "the", "half", "-", "way", "point", "along", "a", "great", "circle", "path", "between", "the", "two", "points", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geo/distance.go#L52-L71
151,084
paulmach/orb
maptile/set.go
ToFeatureCollection
func (s Set) ToFeatureCollection() *geojson.FeatureCollection { fc := geojson.NewFeatureCollection() fc.Features = make([]*geojson.Feature, 0, len(s)) for t := range s { fc.Append(geojson.NewFeature(t.Bound().ToPolygon())) } return fc }
go
func (s Set) ToFeatureCollection() *geojson.FeatureCollection { fc := geojson.NewFeatureCollection() fc.Features = make([]*geojson.Feature, 0, len(s)) for t := range s { fc.Append(geojson.NewFeature(t.Bound().ToPolygon())) } return fc }
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// ToFeatureCollection converts a set of tiles into a feature collection. // This method is mostly useful for debugging output.
[ "ToFeatureCollection", "converts", "a", "set", "of", "tiles", "into", "a", "feature", "collection", ".", "This", "method", "is", "mostly", "useful", "for", "debugging", "output", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/set.go#L12-L20
151,085
paulmach/orb
maptile/set.go
Merge
func (s Set) Merge(set Set) { for t, v := range set { if v { s[t] = true } } }
go
func (s Set) Merge(set Set) { for t, v := range set { if v { s[t] = true } } }
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// Merge will merge the given set into the existing set.
[ "Merge", "will", "merge", "the", "given", "set", "into", "the", "existing", "set", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/set.go#L23-L29
151,086
paulmach/orb
maptile/tilecover/line_string.go
LineString
func LineString(ls orb.LineString, z maptile.Zoom) maptile.Set { set := make(maptile.Set) line(set, ls, z, nil) return set }
go
func LineString(ls orb.LineString, z maptile.Zoom) maptile.Set { set := make(maptile.Set) line(set, ls, z, nil) return set }
[ "func", "LineString", "(", "ls", "orb", ".", "LineString", ",", "z", "maptile", ".", "Zoom", ")", "maptile", ".", "Set", "{", "set", ":=", "make", "(", "maptile", ".", "Set", ")", "\n", "line", "(", "set", ",", "ls", ",", "z", ",", "nil", ")", "\n\n", "return", "set", "\n", "}" ]
// LineString creates a tile cover for the line string.
[ "LineString", "creates", "a", "tile", "cover", "for", "the", "line", "string", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tilecover/line_string.go#L11-L16
151,087
paulmach/orb
maptile/tilecover/line_string.go
MultiLineString
func MultiLineString(mls orb.MultiLineString, z maptile.Zoom) maptile.Set { set := make(maptile.Set) for _, ls := range mls { line(set, ls, z, nil) } return set }
go
func MultiLineString(mls orb.MultiLineString, z maptile.Zoom) maptile.Set { set := make(maptile.Set) for _, ls := range mls { line(set, ls, z, nil) } return set }
[ "func", "MultiLineString", "(", "mls", "orb", ".", "MultiLineString", ",", "z", "maptile", ".", "Zoom", ")", "maptile", ".", "Set", "{", "set", ":=", "make", "(", "maptile", ".", "Set", ")", "\n", "for", "_", ",", "ls", ":=", "range", "mls", "{", "line", "(", "set", ",", "ls", ",", "z", ",", "nil", ")", "\n", "}", "\n\n", "return", "set", "\n", "}" ]
// MultiLineString creates a tile cover for the line strings.
[ "MultiLineString", "creates", "a", "tile", "cover", "for", "the", "line", "strings", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tilecover/line_string.go#L19-L26
151,088
paulmach/orb
maptile/tile.go
ToFeatureCollection
func (ts Tiles) ToFeatureCollection() *geojson.FeatureCollection { fc := geojson.NewFeatureCollection() fc.Features = make([]*geojson.Feature, 0, len(ts)) for _, t := range ts { fc.Append(geojson.NewFeature(t.Bound().ToPolygon())) } return fc }
go
func (ts Tiles) ToFeatureCollection() *geojson.FeatureCollection { fc := geojson.NewFeatureCollection() fc.Features = make([]*geojson.Feature, 0, len(ts)) for _, t := range ts { fc.Append(geojson.NewFeature(t.Bound().ToPolygon())) } return fc }
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// ToFeatureCollection converts the tiles into a feature collection. // This method is mostly useful for debugging output.
[ "ToFeatureCollection", "converts", "the", "tiles", "into", "a", "feature", "collection", ".", "This", "method", "is", "mostly", "useful", "for", "debugging", "output", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tile.go#L19-L27
151,089
paulmach/orb
maptile/tile.go
New
func New(x, y uint32, z Zoom) Tile { return Tile{x, y, z} }
go
func New(x, y uint32, z Zoom) Tile { return Tile{x, y, z} }
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// New creates a new tile with the given coordinates.
[ "New", "creates", "a", "new", "tile", "with", "the", "given", "coordinates", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tile.go#L39-L41
151,090
paulmach/orb
maptile/tile.go
FromQuadkey
func FromQuadkey(k uint64, z Zoom) Tile { t := Tile{Z: z} for i := Zoom(0); i < z; i++ { t.X |= uint32((k & (1 << (2 * i))) >> i) t.Y |= uint32((k & (1 << (2*i + 1))) >> (i + 1)) } return t }
go
func FromQuadkey(k uint64, z Zoom) Tile { t := Tile{Z: z} for i := Zoom(0); i < z; i++ { t.X |= uint32((k & (1 << (2 * i))) >> i) t.Y |= uint32((k & (1 << (2*i + 1))) >> (i + 1)) } return t }
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// FromQuadkey creates the tile from the quadkey.
[ "FromQuadkey", "creates", "the", "tile", "from", "the", "quadkey", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tile.go#L59-L68
151,091
paulmach/orb
maptile/tile.go
Parent
func (t Tile) Parent() Tile { if t.Z == 0 { return t } return Tile{ X: t.X >> 1, Y: t.Y >> 1, Z: t.Z - 1, } }
go
func (t Tile) Parent() Tile { if t.Z == 0 { return t } return Tile{ X: t.X >> 1, Y: t.Y >> 1, Z: t.Z - 1, } }
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// Parent returns the parent of the tile.
[ "Parent", "returns", "the", "parent", "of", "the", "tile", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tile.go#L129-L139
151,092
paulmach/orb
maptile/tile.go
Fraction
func Fraction(ll orb.Point, z Zoom) orb.Point { var p orb.Point factor := uint32(1 << z) maxtiles := float64(factor) lng := ll[0]/360.0 + 0.5 p[0] = lng * maxtiles // bound it because we have a top of the world problem if ll[1] < -85.0511 { p[1] = maxtiles - 1 } else if ll[1] > 85.0511 { p[1] = 0 } else { siny := math.Sin(ll[1] * math.Pi / 180.0) lat := 0.5 + 0.5*math.Log((1.0+siny)/(1.0-siny))/(-2*math.Pi) p[1] = lat * maxtiles } return p }
go
func Fraction(ll orb.Point, z Zoom) orb.Point { var p orb.Point factor := uint32(1 << z) maxtiles := float64(factor) lng := ll[0]/360.0 + 0.5 p[0] = lng * maxtiles // bound it because we have a top of the world problem if ll[1] < -85.0511 { p[1] = maxtiles - 1 } else if ll[1] > 85.0511 { p[1] = 0 } else { siny := math.Sin(ll[1] * math.Pi / 180.0) lat := 0.5 + 0.5*math.Log((1.0+siny)/(1.0-siny))/(-2*math.Pi) p[1] = lat * maxtiles } return p }
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// Fraction returns the precise tile fraction at the given zoom. // Will return 2^zoom-1 if the point is below 85.0511 S.
[ "Fraction", "returns", "the", "precise", "tile", "fraction", "at", "the", "given", "zoom", ".", "Will", "return", "2^zoom", "-", "1", "if", "the", "point", "is", "below", "85", ".", "0511", "S", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tile.go#L143-L164
151,093
paulmach/orb
maptile/tile.go
SharedParent
func (t Tile) SharedParent(tile Tile) Tile { // bring both tiles to the lowest zoom. if t.Z != tile.Z { if t.Z < tile.Z { tile = tile.toZoom(t.Z) } else { t = t.toZoom(tile.Z) } } if t == tile { return t } // go version < 1.9 // bit package usage was about 10% faster // // TODO: use build flags to support older versions of go. // // move from most significant to least until there isn't a match. // for i := t.Z - 1; i >= 0; i-- { // if t.X&(1<<i) != tile.X&(1<<i) || // t.Y&(1<<i) != tile.Y&(1<<i) { // return Tile{ // t.X >> (i + 1), // t.Y >> (i + 1), // t.Z - (i + 1), // } // } // } // // if we reach here the tiles are the same, which was checked above. // panic("unreachable") // bits different for x and y xc := uint32(32 - bits.LeadingZeros32(t.X^tile.X)) yc := uint32(32 - bits.LeadingZeros32(t.Y^tile.Y)) // max of xc, yc maxc := xc if yc > maxc { maxc = yc } return Tile{ X: t.X >> maxc, Y: t.Y >> maxc, Z: t.Z - Zoom(maxc), } }
go
func (t Tile) SharedParent(tile Tile) Tile { // bring both tiles to the lowest zoom. if t.Z != tile.Z { if t.Z < tile.Z { tile = tile.toZoom(t.Z) } else { t = t.toZoom(tile.Z) } } if t == tile { return t } // go version < 1.9 // bit package usage was about 10% faster // // TODO: use build flags to support older versions of go. // // move from most significant to least until there isn't a match. // for i := t.Z - 1; i >= 0; i-- { // if t.X&(1<<i) != tile.X&(1<<i) || // t.Y&(1<<i) != tile.Y&(1<<i) { // return Tile{ // t.X >> (i + 1), // t.Y >> (i + 1), // t.Z - (i + 1), // } // } // } // // if we reach here the tiles are the same, which was checked above. // panic("unreachable") // bits different for x and y xc := uint32(32 - bits.LeadingZeros32(t.X^tile.X)) yc := uint32(32 - bits.LeadingZeros32(t.Y^tile.Y)) // max of xc, yc maxc := xc if yc > maxc { maxc = yc } return Tile{ X: t.X >> maxc, Y: t.Y >> maxc, Z: t.Z - Zoom(maxc), } }
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// SharedParent returns the tile that contains both the tiles.
[ "SharedParent", "returns", "the", "tile", "that", "contains", "both", "the", "tiles", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tile.go#L167-L217
151,094
paulmach/orb
maptile/tile.go
Children
func (t Tile) Children() Tiles { return Tiles{ Tile{t.X << 1, t.Y << 1, t.Z + 1}, Tile{(t.X << 1) + 1, t.Y << 1, t.Z + 1}, Tile{(t.X << 1) + 1, (t.Y << 1) + 1, t.Z + 1}, Tile{t.X << 1, (t.Y << 1) + 1, t.Z + 1}, } }
go
func (t Tile) Children() Tiles { return Tiles{ Tile{t.X << 1, t.Y << 1, t.Z + 1}, Tile{(t.X << 1) + 1, t.Y << 1, t.Z + 1}, Tile{(t.X << 1) + 1, (t.Y << 1) + 1, t.Z + 1}, Tile{t.X << 1, (t.Y << 1) + 1, t.Z + 1}, } }
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// Children returns the 4 children of the tile.
[ "Children", "returns", "the", "4", "children", "of", "the", "tile", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tile.go#L220-L227
151,095
paulmach/orb
maptile/tile.go
Quadkey
func (t Tile) Quadkey() uint64 { var i, result uint64 for i = 0; i < uint64(t.Z); i++ { result |= (uint64(t.X) & (1 << i)) << i result |= (uint64(t.Y) & (1 << i)) << (i + 1) } return result }
go
func (t Tile) Quadkey() uint64 { var i, result uint64 for i = 0; i < uint64(t.Z); i++ { result |= (uint64(t.X) & (1 << i)) << i result |= (uint64(t.Y) & (1 << i)) << (i + 1) } return result }
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// Quadkey returns the quad key for the tile.
[ "Quadkey", "returns", "the", "quad", "key", "for", "the", "tile", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tile.go#L235-L243
151,096
paulmach/orb
maptile/tile.go
Range
func (t Tile) Range(z Zoom) (min, max Tile) { if z < t.Z { t = t.toZoom(z) return t, t } offset := z - t.Z return Tile{ X: t.X << offset, Y: t.Y << offset, Z: z, }, Tile{ X: ((t.X + 1) << offset) - 1, Y: ((t.Y + 1) << offset) - 1, Z: z, } }
go
func (t Tile) Range(z Zoom) (min, max Tile) { if z < t.Z { t = t.toZoom(z) return t, t } offset := z - t.Z return Tile{ X: t.X << offset, Y: t.Y << offset, Z: z, }, Tile{ X: ((t.X + 1) << offset) - 1, Y: ((t.Y + 1) << offset) - 1, Z: z, } }
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// Range returns the min and max tile "range" to cover the tile // at the given zoom.
[ "Range", "returns", "the", "min", "and", "max", "tile", "range", "to", "cover", "the", "tile", "at", "the", "given", "zoom", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tile.go#L247-L263
151,097
paulmach/orb
geo/area.go
Area
func Area(g orb.Geometry) float64 { if g == nil { return 0 } switch g := g.(type) { case orb.Point, orb.MultiPoint, orb.LineString, orb.MultiLineString: return 0 case orb.Ring: return math.Abs(ringArea(g)) case orb.Polygon: return polygonArea(g) case orb.MultiPolygon: return multiPolygonArea(g) case orb.Collection: return collectionArea(g) case orb.Bound: return Area(g.ToRing()) } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
go
func Area(g orb.Geometry) float64 { if g == nil { return 0 } switch g := g.(type) { case orb.Point, orb.MultiPoint, orb.LineString, orb.MultiLineString: return 0 case orb.Ring: return math.Abs(ringArea(g)) case orb.Polygon: return polygonArea(g) case orb.MultiPolygon: return multiPolygonArea(g) case orb.Collection: return collectionArea(g) case orb.Bound: return Area(g.ToRing()) } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
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// Area returns the area of the geometry on the earth.
[ "Area", "returns", "the", "area", "of", "the", "geometry", "on", "the", "earth", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geo/area.go#L12-L33
151,098
paulmach/orb
geojson/feature.go
UnmarshalJSON
func (f *Feature) UnmarshalJSON(data []byte) error { jf := &jsonFeature{} err := json.Unmarshal(data, &jf) if err != nil { return err } if jf.Type != "Feature" { return fmt.Errorf("geojson: not a feature: type=%s", jf.Type) } *f = Feature{ ID: jf.ID, Type: jf.Type, Properties: jf.Properties, BBox: jf.BBox, Geometry: jf.Geometry.Coordinates, } return nil }
go
func (f *Feature) UnmarshalJSON(data []byte) error { jf := &jsonFeature{} err := json.Unmarshal(data, &jf) if err != nil { return err } if jf.Type != "Feature" { return fmt.Errorf("geojson: not a feature: type=%s", jf.Type) } *f = Feature{ ID: jf.ID, Type: jf.Type, Properties: jf.Properties, BBox: jf.BBox, Geometry: jf.Geometry.Coordinates, } return nil }
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// UnmarshalJSON handles the correct unmarshalling of the data // into the orb.Geometry types.
[ "UnmarshalJSON", "handles", "the", "correct", "unmarshalling", "of", "the", "data", "into", "the", "orb", ".", "Geometry", "types", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/geojson/feature.go#L70-L90
151,099
paulmach/orb
maptile/tilecover/helpers.go
Geometry
func Geometry(g orb.Geometry, z maptile.Zoom) maptile.Set { if g == nil { return nil } switch g := g.(type) { case orb.Point: return Point(g, z) case orb.MultiPoint: return MultiPoint(g, z) case orb.LineString: return LineString(g, z) case orb.MultiLineString: return MultiLineString(g, z) case orb.Ring: return Ring(g, z) case orb.Polygon: return Polygon(g, z) case orb.MultiPolygon: return MultiPolygon(g, z) case orb.Collection: return Collection(g, z) case orb.Bound: return Bound(g, z) } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
go
func Geometry(g orb.Geometry, z maptile.Zoom) maptile.Set { if g == nil { return nil } switch g := g.(type) { case orb.Point: return Point(g, z) case orb.MultiPoint: return MultiPoint(g, z) case orb.LineString: return LineString(g, z) case orb.MultiLineString: return MultiLineString(g, z) case orb.Ring: return Ring(g, z) case orb.Polygon: return Polygon(g, z) case orb.MultiPolygon: return MultiPolygon(g, z) case orb.Collection: return Collection(g, z) case orb.Bound: return Bound(g, z) } panic(fmt.Sprintf("geometry type not supported: %T", g)) }
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// Geometry returns the covering set of tiles for the given geometry.
[ "Geometry", "returns", "the", "covering", "set", "of", "tiles", "for", "the", "given", "geometry", "." ]
c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29
https://github.com/paulmach/orb/blob/c6e407b203494d3b1edb9fd5cae4cf34a4ae0f29/maptile/tilecover/helpers.go#L12-L39