lidar2map — free tool to generate LiDAR relief maps (hillshade / SVF) for Locus

[nico579]

Hello Rafael,

Thanks for the screenshots, they help a lot. In the Locus one I can see opaque black rectangles inside the SVF shading, while the rest of the area looks fine. The rectangles follow the outlines of map blocks, so this is not a SVF computation error: these are areas where the image was never filled in.

In your settings I see the image format is JPEG, with the MBTiles output. JPEG has no transparency: wherever a tile has no data (edge of a tile, coverage gap, failed download), you get black where a PNG would let the base map show through. For a shading used as an overlay in Locus, PNG is the right choice. The file will be larger, but the base map stays visible where there is nothing to draw.

What I suggest:

1. Re-run the same area (Sens, 30 km) with PNG as the image format, and tell me whether the black blocks become transparent.
2. If they stay black with PNG, send me the log file. Your terminal shows its location, in the logs/ folder next to the executable (lidar_20260921_...log). I will check whether some tiles failed to download, which would explain the gaps.
3. Tell me whether the problem also appears with LRM alone, or only with SVF, slope and RRIM. You mention three affected shadings, and that would tell me whether the defect comes from the computation or from the tile assembly.

As for the rest: the atk-bridge message in the terminal is ordinary GTK noise on Ubuntu and has nothing to do with your problem. And the interface opening in Firefox rather than in a dedicated window is expected when the embedded window component is not available: the web interface on 127.0.0.1:8766 works the same way.

Let me know what the PNG test gives.

Best regards,
Nico