RouteConverter
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Complete elevation data

Not every GPS format carries elevation. Position → Complete… → Elevation fills it in for the selected positions (or all of them, if none are selected).

Where the data comes from

RouteConverter tries sources in order and uses the first one that answers:

  1. Local elevation tiles — SRTM, Jonathan de Ferranti's DEM, or Sonny's LiDAR DTM .hgt files, if you have them installed. Works offline.
  2. GeoNames — an online elevation lookup.
  3. Google Maps Elevation API — only available in the Google Edition, and only used as a last resort. See Google API keys for setting that up.

Notes

  • Elevation from local tiles is generally more precise for mountainous terrain than the online fallbacks.
  • Re-running the action overwrites elevation already present — undo (Edit → Undo) if you didn't mean to.