-
Notifications
You must be signed in to change notification settings - Fork 594
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
转换后的3d tiles存在位置偏移 #209
Labels
Comments
我这边转换完成之后使用cesium加载也是有偏移,高度、经纬度偏移都有一些偏移。这个问题你解决了吗? |
用的是cesiumlab转的3dtiles |
这个可能需要逐顶点对osgb进行proj4投影,现在是只处理了局部坐标系的原点。 |
具体怎么实现,有思路吗 |
已经解决。 |
[Steelwall2014]君的 pull request 有效,点赞! |
fixed by #249 |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
范老师,你好:
通过你这个转换工具,将osgb转为3d tiles时存在大概几十米的偏移误差。
我自己的用例数据为一个20GB的osgb数据,坐标系为:EPSG:4544,中心坐标:(643104,3493316,0)
我验证如下:
1.通过你提供的这个工具,转换后,在cesium中展示并叠加geojson格式的polygon,发现位置偏差:如:图1
2.为了验证是转换后的3d tiles存在偏移,还是polygon存在偏移,我在arcgis pro中叠加osgb和这个polygon,他们位置关系正确。如:图2
3.我借助cesiumlab工具转换osgb-->3d tiles,并在cesium中叠加展示,他们位置关系正确。如:图3
另,运行工具过程中,输出的wgs84中心坐标为:(106.50709895113127, 31.553389611480966)
The text was updated successfully, but these errors were encountered: