Render DEM tiles using RenderDEM #1725
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Oh, heck yeah. |
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This PR replaces the PDAL calls to generate DEM tiles with a separate C++ module (RenderDEM), which performs the same task using PDAL internals, but more efficiently. Because it performs point cloud reads only once, it reduces memory usage by an order of magnitude, while speeding up processing by at least 20% (often more, depends on number of cores, size of point cloud).
Closes #1722
When reading PLY files it also skips the PDAL reader and reads them using an optimized PLY reader (same as OpenPointClass), which is orders of magnitude faster (useful for the 2.5D mesh generation part).