Interactive R Shiny app for generating 3D terrain visualizations using rayshader.

• Preset locations across Pennsylvania, California, and Washington
• Custom area drawing with validation (max 50 km²)
• Customizable rendering (vertical exaggeration, color palette, lighting)
• Smart water detection (auto-disabled for flat terrain)
• Water feature overlays
• Minimap showing selected region
• Interactive 3D controls (rotate, zoom, pan)
• Loading overlay

• R 4.1.0+
• XQuartz (macOS): xquartz.org - restart after install

# Install packages
install.packages(c("shiny", "leaflet", "leaflet.extras", "sf",
                   "elevatr", "terra", "rayshader", "rgl",
                   "osmdata", "ggplot2", "plotly", "ggspatial", "remotes"))

shiny::runApp()

1. Select a location from the dropdown
2. Adjust parameters (vertical exaggeration, color palette, sun angle, detail level)
3. Click Generate 3D View
4. Rotate and zoom the interactive 3D model

• Pennsylvania: Wissahickon Valley, Manayunk, Fairmount Park, and more
• California: Yosemite Valley, Point Reyes, Big Sur, Lake Tahoe
• Washington: Mount Rainier, Olympic Peninsula, Columbia River Gorge
• Custom: Draw any rectangle on the map (continental US)

docker build -t shiny-scape .
docker run -p 3838:3838 -e PORT=3838 shiny-scape
# Visit http://localhost:3838

Edit R/map_utils.R and add to get_preset_locations():

your_location = list(
  name = "Location Name",
  lng1 = -75.180, lng2 = -75.150,
  lat1 = 39.940, lat2 = 39.960,
  description = "Brief description"
)

• rayshader - Tyler Morgan-Wall
• elevatr - Jeff Hollister
• Elevation: AWS Terrain Tiles / USGS

MIT