GGBond-GIS

Results 7 issues of GGBond-GIS

![image](https://user-images.githubusercontent.com/92559206/162410765-556438b7-ca4c-40e1-832d-230c4a96de96.png) ![image](https://user-images.githubusercontent.com/92559206/162410894-624b82e3-762f-4e63-bbe9-2831f7dbf042.png) How to modify the color of 3dfile, like this

As shown in the following figure, I can only receive shadows on mesh objects. I hope you can give me advice on how to receive shadows on tiles ![1648466375(1)](https://user-images.githubusercontent.com/92559206/160387312-ed10ed2d-67f3-4b91-9cb3-93babcfc52b4.png)

suggestion for enhancement

## WebGIS大地坐标系统 在常规的gis引擎中需要双精度来准确的描述地理信息,在webgpu中没有双精度; 在低级别中对精度要求不高的情况: ![image](https://github.com/Orillusion/orillusion/assets/92559206/f6d308b8-50a0-4dcb-892b-4bd4ee11548a) 在高级别中对精度要求较高的情况: ![image](https://github.com/Orillusion/orillusion/assets/92559206/14c872d9-bc7a-4c2f-a4c3-f71a010902df)

wait

## Bug描述 近截面我设置的0.1,不应该这么快就把物体截掉了 ![image](https://github.com/Orillusion/orillusion/assets/92559206/dd8c74b6-c8b5-41b9-9ac6-64f1fb17939b)

bug

Like cesiumjs

enhancement
question
priority-medium
@ud-viz
examples