library(mapgl) library(deckglgeoarrow) library(geoarrow) library(sf) library(colourvalues) style_positron = "https://basemaps.cartocdn.com/gl/positron-gl-style/style.json" style_darkmatter = "https://basemaps.cartocdn.com/gl/dark-matter-gl-style/style.json" style_openfreemap = 'https://tiles.openfreemap.org/styles/liberty' ### points ========================= n = 1e6 pts = data.frame( id = 1:n , x = runif(n, -180, 180) , y = runif(n, -90, 90) ) pts = st_as_sf( pts , coords = c("x", "y") , crs = 4326 ) pts$fillColor = sample(hcl.colors(n, alpha = sample(seq(0, 1, length.out = n)))) pts$lineColor = sample( hcl.colors(n, alpha = sample(seq(0, 1, length.out = n)), palette = "inferno") ) pts$radius = sample.int(15, nrow(pts), replace = TRUE) pts$lineWidth = sample.int(5, nrow(pts), replace = TRUE) ### polygons ================================== # url = "/vsizip//vsicurl/https://storage.googleapis.com/fao-maps-catalog-data/geonetwork/aquamaps/hydrobasins_asia.zip" url = "~/Downloads/hydrobasins_asia.gpkg" pls = st_read(url) pls$fillColor = color_values(pls$MAJ_BAS, palette = "spectral", alpha = 180) pls$lineColor = pls$fillColor ### lines ====================================== # url = "/vsizip//vsicurl/https://storage.googleapis.com/fao-maps-catalog-data/geonetwork/aquamaps/rivers_asia_37331.zip" url = "~/Downloads/rivers_asia.gpkg" lns = st_read(url) lns$lineColor = color_values( lns$Strahler , palette = "blues" ) options(viewer = NULL) m = maplibre(style = style_positron) m = m |> addGeoArrowScatterplotLayer( data = pts , layer_id = "scatter" , geom_column_name = "geometry" , render_options = renderOptions( zIndex = 1 , beforeId = "water" , autoHighlight = TRUE ) , data_accessors = dataAccessors( getRadius = "radius" , getFillColor = "fillColor" , getLineWidth = "lineWidth" , getLineColor = "lineColor" ) , popup = TRUE , popup_options = popupOptions( anchor = "bottom-right" ) , tooltip = FALSE , parameters = list( depthTest = TRUE ) ) |> set_view(c(100, 30), 2) |> add_globe_control() |> add_navigation_control(visualize_pitch = TRUE) m = m |> addGeoArrowPolygonLayer( data = pls , layer_id = "polygon" , geom_column_name = attr(pls, "sf_column") , render_options = renderOptions( extruded = FALSE , stroked = FALSE , zIndex = 2 , autoHighlight = TRUE ) , data_accessors = dataAccessors( getFillColor = "fillColor" ) , popup = TRUE , tooltip = TRUE ) m |> addGeoArrowPathLayer( data = lns , layer_id = "path" , geom_column_name = attr(lns, "sf_column") , render_options = renderOptions( widthUnits = "meters" , widthScale = 1000 , widthMaxPixels = 30 , zIndex = 3 , autoHighlight = TRUE ) , data_accessors = dataAccessors( getWidth = "Strahler" , getColor = "lineColor" ) , popup = TRUE , tooltip = TRUE ) |> add_layers_control( collapsible = TRUE , layers = list( "Scatter Layer" = generateDeckglLayerId("scatter", beforeId = "water") , "Polygon Layer" = generateDeckglLayerId("polygon") , "Path Layer" = generateDeckglLayerId("path") ) ) |> deckglgeoarrow:::addMouseCoordinates()