https://openjscad.org/
https://openjscad.org/dokuwiki/doku.php?id=jscad_design_math
http://opengeoscience.github.io/geojs/examples/reprojection/
http://pointclouds.org/documentation/
https://openjscad.org/
https://openjscad.org/dokuwiki/doku.php?id=jscad_design_math
http://opengeoscience.github.io/geojs/examples/reprojection/
http://pointclouds.org/documentation/