QuantizedMesh2STL Demo

解析 cesium 地形 Quantized-Mesh数据，生成STL。

请求地形瓦片

http://example.com/tiles/z/x/y.terrain

解析

下载数据及解析

1. 1_0_0.terrain->1_0_0.stl

bounds:(-180.0, -90.0, -90.0, 0.0)

https://assets.cesium.com/1/1/0/0.terrain?v=1.2.0&extensions=octvertexnormals-metadata-watermask

2. 15_10484_23267.terrain->15_10484_23267.stl

bounds:(-122.40966796875, 37.8094482421875, -122.4041748046875, 37.81494140625)

https://assets.cesium.com/1/15/10484/23267.terrain?v=1.2.0&extensions=octvertexnormals-metadata-watermask

Demo

参考

1. Cesium地形瓦片数据格式——quantized-mesh浅析
2. https://github.com/CesiumGS/quantized-mesh
3. https://www.cnblogs.com/oloroso/p/11080222.html
4. https://blog.csdn.net/mrbaolong/article/details/123925788