File size: 1,576 Bytes
bc20498 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 |
import * as util from '../../util';
import * as math from '../../math';
let defaults = {
fit: true, // whether to fit to viewport
padding: 30, // fit padding
boundingBox: undefined, // constrain layout bounds; { x1, y1, x2, y2 } or { x1, y1, w, h }
animate: false, // whether to transition the node positions
animationDuration: 500, // duration of animation in ms if enabled
animationEasing: undefined, // easing of animation if enabled
animateFilter: function ( node, i ){ return true; }, // a function that determines whether the node should be animated. All nodes animated by default on animate enabled. Non-animated nodes are positioned immediately when the layout starts
ready: undefined, // callback on layoutready
stop: undefined, // callback on layoutstop
transform: function (node, position ){ return position; } // transform a given node position. Useful for changing flow direction in discrete layouts
};
function RandomLayout( options ){
this.options = util.extend( {}, defaults, options );
}
RandomLayout.prototype.run = function(){
let options = this.options;
let cy = options.cy;
let eles = options.eles;
let bb = math.makeBoundingBox( options.boundingBox ? options.boundingBox : {
x1: 0, y1: 0, w: cy.width(), h: cy.height()
} );
let getPos = function( node, i ){
return {
x: bb.x1 + Math.round( Math.random() * bb.w ),
y: bb.y1 + Math.round( Math.random() * bb.h )
};
};
eles.nodes().layoutPositions( this, options, getPos );
return this; // chaining
};
export default RandomLayout;
|