Replaced Google Maps (but not Google Earth Engine) with ESRI/Leaflet Basemap & Geocoder
- Offers 4 basemaps: Street, Satellite, Topgraphic and Natl. Geographic
- Shows zoom level (1 to 18), scalebars
- Adds 1m data for most of the US, France and England:
Local GeoTIFF DEM Upload
- Users can now upload a local GeoTIFF file as a DEM source and process it in the same way an online DEM can be.
- Upload includes validation, reprojection, bounding-box snapping of the red selection box, and a clear (×) button to switch back to online DEMs
- Upload widget is under Area Selection:
- When loaded, the Area Box show the location of the uploaded Geotiff (but not its true terrain!), hitting the red X will jump back to interactive area selection
DEM Coverage Boundaries
- Polygon outlines of high-resolution (1 m) DEM coverage i drawn on the map
- note that these are static and not updated as more US areas get 1 m DEMs
- note that these are static and not updated as more US areas get 1 m DEMs
Tile loading indicators
- as hillshade tiles can be slow to load (especially when zoomed out) a lamp in the upper right corner will blink yellow when tiles are still loaded in and stay green when all tiles have been loaded.
- a red lamp will blink if the server has reached its Google Earth Engine data per minute quote, indicating that a wait is needed to clear the block.
Zoom gating for 1 m DEM sources
- to optimize server load, 1m datasets are only shown at zoom levels 14 - 18. Instructions are displayed in the upper right corner
UI Improvements
- Drag-to-resize handle between map and UI panel
- Intro page updated with an interactive world map and click-to-copy coordinates
