Mark Erikson

Searching through Github turns up https://github.com/geoadmin/3d-forge, which appears to have the ability to read and write quantized-mesh files. Could be a useful source of info for someone trying to implement...

One more useful-ish thing I just found. This project looks like it uses a combination of GDAL and CGAL to turn a GDAL-supported raster into a Triangulated Irregular Network: https://github.com/shashankkhare/refine/blob/master/TetrahedronBuilder.h....

Someone just posted in the Cesium group that they've implemented a quantized mesh generator. No specific details yet. Link: https://groups.google.com/d/msg/cesium-dev/IpcBEvjt-DA/jtbIOATQEgAJ

Throwing out some more examples of relevant-looking links: - https://github.com/geoadmin/3d-forge/issues/168 - http://blog.mastermaps.com/2016/09/creating-tin-from-raster-dem.html - https://github.com/loicgasser/quantized-mesh-tile/issues/6 - https://github.com/rolker/cesium-tools - https://github.com/bertt/awesome-quantized-mesh-tiles - https://github.com/nmandery/conference-notes/blob/bae9d7d99cd648d96b49dc4b3b8c84421ff1d8f6/2016-06-23-geopython_2016/swisstopo_loic_gasser-quantized_mesh_encoder.md Basically, looks like there's plenty of info on the format,...

I... actually seem to have added working support for writing directly to MBTiles this afternoon :) A basic implementation appeared to be working right before I had to leave. I've...

So that was with heightmaps. Just did another run with quantized-mesh tiles. Here's how all this looks together. The calculations generated 17,685 tiles, and this was on a Win10 machine,...

I just tried using MD5 hashing to detect duplicate tiles and normalize them, as seen in some other MBTiles implementations, but an initial test run against that same block showed...

Yeah, thinking about it further... since heightmaps are just height values, _those_ might all be bit-for-bit identical. However, since quantized-mesh files by definition involve lat/lons and ECEF coordinates, they can't...

Progress update: my remaining goal is to be able to have CTB intelligently only generate terrain tiles for areas with actual data. That way, we won't waste large amounts of...

As best as I can tell, this only compiles with GDAL 2.1.x, because of the overview function described in #51 . Would be great if we can figure out how...