Drag white vertices onto the real track. Click a mid-point to add one, right-click to delete.
DEM overlay opacity
Hillshade/slope reveal the graded bench under tree canopy where aerial can't see it.
Trail
Vertices: –
Length: –
Load any Trailforks/GPS KML to edit a different trail — hillshade/slope regenerate live from LINZ for wherever it is (coarse grid, can take up to a minute).
Export corrected line
Feed the exported file back into your grading pipeline to measure the accuracy gain.
Custom DEM
Bundled 1 m data covers Canterbury/Christchurch directly; elsewhere the tool pulls a matching export from LINZ's national LiDAR mosaic automatically (check the "LiDAR coverage" map layer above). Only needed here if you want to override with your own DEM — e.g. from LINZ Data Service.
Finish
Sends the corrected line straight to the grader below.