AV-G21
Elevation Profile
Draw a line over a DEM to get its height profile, climb and descent, and a CSV of samples.
● Runs on your device; nothing is uploadedHow to use it
- Drop a .hgt, .hgt.zip or GeoTIFF DEM; its extent shows as a dashed box.
- Draw a line across the DEM with the map line tool.
- Choose the Samples along the line, or leave it on Auto.
- Set Ignore bumps smaller than to smooth the climb figures.
- Read the statistics and click Download CSV for the samples.
Limits
- File size
- 150 MB
- Raster cells
- 25 million (larger rasters are resampled)
- Samples
- Auto 50–2,000, or 100, 500 or 2,000
- Line
- At least two points
Features
- Interactive chart that highlights the point on the map as you hover
- Distance, start and end heights, min, max, climb and descent
- Counts samples that fall outside the DEM
- .hgt tiles are placed on the map from their file name
- Sampling runs in a Web Worker
For AI agents: avtools_elevation_profile
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