Package index • glmap

Map Initialization, Camera & Providers

Initialize a GPU map and control camera position, bounds, basemap providers, API keys, terrain, and projection.

glmap(): Create a High-Performance GPU Map Widget (glmap)
set_view(): Set Map Camera View (Center, Zoom, Pitch, Bearing)
fit_bounds(): Fit Map Camera to a Bounding Box [xmin, ymin, xmax, ymax] (fit_bounds)
fly_to(): Smoothly Animate Camera to Target Location (flyTo)
fly_to_bounds(): Smoothly Animate Camera to Bounding Box (fly_to_bounds)
set_max_bounds(): Restrict Map Panning to Maximum Bounding Box (set_max_bounds)
set_basemap(): Change the Map Basemap Style (set_basemap)
add_provider_tiles(): Add or Switch Basemap Provider Tiles (add_provider_tiles)
gl_providers: Basemap Tile Providers Catalog (gl_providers)
gl_list_providers(): List All Built-in Basemap Tile Providers in glmap
gl_set_api_key() gl_get_api_key(): Set or Retrieve a Provider API Key (gl_set_api_key / gl_get_api_key)
set_terrain(): Enable 3D Terrain Elevation on the Map
set_projection(): Set Map Projection ("mercator" or "globe")
add_control(): Configure Map UI Controls
add_legend(): Add a Custom Map Legend
gl_save_html(): Save a glmap Map to a Standalone HTML File (gl_save_html)

GPU Vector, Raster & Out-of-Core Layers

Add high-density point clouds, geodesic circles, rectangles, lines, earcut-triangulated polygons, Float32 rasters, hexbins, heatmaps, WMS, PMTiles, and DuckDB layers.

add_sf(): Automatically Add an sf, sfc, or data.frame Layer to a glmap Map
add_points(): Add a GPU Instanced Point Layer (Handles 1M+ Points at 60 FPS)
add_circles(): Add a Geodesic Circle Layer (add_circles)
add_rectangles(): Add a Bounding-Box Rectangle Layer (add_rectangles)
add_lines(): Add a GPU LineString / MultiLineString Layer
add_polygons(): Add a Pre-Triangulated GPU Polygon / MultiPolygon Layer
add_raster(): Add a GPU Fragment-Shader Raster Layer for terra::SpatRaster
add_hexbin(): Add a C++ Accelerated Hexagonal Binning Layer for 1M+ Points
add_heatmap(): Add a GPU Additive Kernel Density Heatmap Layer
add_labels(): Add a GPU Text / Symbol Label Layer (add_labels)
add_popups(): Add Standalone HTML Popups (add_popups)
add_wms_tiles(): Add an OGC Web Map Service (WMS) Raster Tile Layer (add_wms_tiles)
add_pmtiles() add_mvt(): Add a Cloud-Native PMTiles or Mapbox Vector Tile (MVT) Layer
add_geojson(): Add a Raw GeoJSON URL or Object Layer
add_duckdb(): Add a Live Out-of-Core DuckDB / Parquet Layer (add_duckdb)

Shiny Proxy, Group Controls & Live GPU Updates

Update layers, groups, visibility, opacity, filters, and GPU raster shaders in 0ms without re-rendering.

glmapOutput(): Shiny UI Output for glmap
renderGlmap(): Shiny Server Render Function for glmap
glmap_proxy(): Create a Shiny Proxy for a glmap Map Widget
show_group() hide_group() clear_group(): Show, Hide, or Clear Layers by Group Name (show_group, hide_group, clear_group)
clear_layer(): Clear a Single Layer by ID
clear_layers(): Clear All Data Layers from a Map
set_layer_visibility(): Toggle Layer Visibility
set_layer_opacity(): Update Layer Opacity Dynamically
set_raster_style(): Live-Update a GPU Raster Layer's Colormap, Contrast Range, or Hillshading (0ms GPU Update)
set_filter(): Filter Visible Features by Index on the GPU

Plugins, Custom Shaders & Binary Engine

Extend glmap with custom JS plugins, GLSL shaders, C++17 binary packers, and spatial indices.

register_plugin(): Register a Reusable glmap Extension Plugin
use_plugin(): Attach a Registered or Inline Plugin to a glmap Map
list_plugins(): List Available glmap Plugins
add_webgl_shader_layer(): Add a Custom WebGL2 Shader Layer to a glmap Map
add_deck_layer(): Add a Custom Deck.gl / External Layer Specification
gl_pack_sf_binary(): Pack an sf, sfc, or data.frame object into a GLMP binary buffer (gl_pack_sf_binary)
gl_pack_raster_binary(): Pack a terra SpatRaster or matrix into a GLMR Float32 binary buffer (gl_pack_raster_binary)
gl_spatial_index(): Build an in-memory C++ spatial index for fast viewport queries (gl_spatial_index)
gl_query_index(): Query a spatial index for features intersecting a bounding box (gl_query_index)
gl_duckdb_index(): Create a DuckDB Out-of-Core Spatial Query Index (gl_duckdb_index)
gl_serve_start(): Start the local zero-copy binary & tile server (gl_serve_start)
gl_serve_stop(): Stop the local zero-copy binary server (gl_serve_stop)
gl_server_status(): Query status of the local binary server and registered buffers (gl_server_status)
gl_benchmark_data(): Generate Synthetic Geospatial Benchmark Datasets (gl_benchmark_data)
gl_popup_table(): Generate Compact HTML Table Popups (gl_popup_table)
gl_bbox_to_wkt(): Convert a glmap Selection or Bounds Event into a WKT Polygon (gl_bbox_to_wkt)