so it begins :nest_with_eggs:

Dockerfile

@@ -8,9 +8,10 @@ RUN install2.r --error \
     ggplot2 \
     readr \
     ggExtra \
-    mapgl \
     duckdbfs
 
+RUN installGithub.r cboettig/mapgl
+
 COPY . .
 
 CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=7860)"]

app.R

@@ -1,58 +1,31 @@
 library(shiny)
 library(bslib)
-library(dplyr)
-library(ggplot2)
-
-df <- readr::read_csv("penguins.csv")
-# Find subset of columns that are suitable for scatter plot
-df_num <- df |> select(where(is.numeric), -Year)
+library(mapgl)
 
+pmtiles <- "https://data.source.coop/cboettig/us-boundaries/mappinginequality.pmtiles"
 ui <- page_sidebar(
-  theme = bs_theme(bootswatch = "minty"),
-  title = "Penguins explorer",
-  sidebar = sidebar(
-    varSelectInput("xvar", "X variable", df_num, selected = "Bill Length (mm)"),
-    varSelectInput("yvar", "Y variable", df_num, selected = "Bill Depth (mm)"),
-    checkboxGroupInput("species", "Filter by species",
-      choices = unique(df$Species), selected = unique(df$Species)
-    ),
-    hr(), # Add a horizontal rule
-    checkboxInput("by_species", "Show species", TRUE),
-    checkboxInput("show_margins", "Show marginal plots", TRUE),
-    checkboxInput("smooth", "Add smoother"),
-  ),
-  plotOutput("scatter")
+  title = "mapgl with Shiny",
+  sidebar = sidebar(),
+  card(
+    full_screen = TRUE,
+    maplibreOutput("map")
+  )
 )
 
 server <- function(input, output, session) {
-  subsetted <- reactive({
-    req(input$species)
-    df |> filter(Species %in% input$species)
-  })
+  output$map <- renderMaplibre({
 
-  output$scatter <- renderPlot(
-    {
-      p <- ggplot(subsetted(), aes(!!input$xvar, !!input$yvar)) +
-        theme_light() +
-        list(
-          theme(legend.position = "bottom"),
-          if (input$by_species) aes(color = Species),
-          geom_point(),
-          if (input$smooth) geom_smooth()
-        )
+    maplibre(center=c(-72.9, 41.3), zoom=10) |>
+      add_fill_layer(
+        id = "redlines",
+        source = list(type = "vector",
+                      url = paste0("pmtiles://", pmtiles)),
+        source_layer = "mappinginequality",
+        fill_color = list("get", "fill")
+      )
+  })
 
-      if (input$show_margins) {
-        margin_type <- if (input$by_species) "density" else "histogram"
-        p <- p |> ggExtra::ggMarginal(
-          type = margin_type, margins = "both",
-          size = 8, groupColour = input$by_species, groupFill = input$by_species
-        )
-      }
 
-      p
-    },
-    res = 100
-  )
 }
 
 shinyApp(ui, server)

geo-llm-r.Rproj

@@ -1,4 +1,5 @@
 Version: 1.0
+ProjectId: 337131c5-7aa5-4963-bc4e-d8a156e206a0
 
 RestoreWorkspace: Default
 SaveWorkspace: Default