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[Sandcastle example](https://cesiumjs.org/Cesium/Build/Apps/Sandcastle/index.html#c=nVRNj5swEP0riMtmJXAwBhOn2ahqeuihVaXdtpdlD8Z2slaNHRnINrvKf68hX7Af1aockD3z3ng88zwbaj32WCrvyrt9yrXnvtyXPPe9qVtww5pS6Dr3…
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In using `booleanIntersects` for a line and polygon, it appears that the geodesic/rhumb(?) line is used for calculation rather than the visual line
In the screenshot, the smaller polygon (poly1) r…
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nearestPointOnLine exhibits strange behavior when the line is near-vertical.
For example in this jsfiddle the line goes from [-40,50] to [-40,60], the point is [-40.01,56] and turf returns the near…
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Cesium中的Cartesian直角坐标系以地球球心为原点,x轴是朝向本初子午线和赤道交点,y轴是朝向亚洲赤道部分,z轴是朝着北极。
在使用Scene加载3d model时,要指定它的modelMatrix。一个四阶矩阵。通过这个来确定位置。modelMatrix通过Cesium.Transforms.headingPitchRollToFixedFrame(origin, hpr)来构造…
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Would you accept a pull request that adds an implementation of the [RDP algorithm](https://en.wikipedia.org/wiki/Ramer%E2%80%93Douglas%E2%80%93Peucker_algorithm)?
An implementation that uses the sh…
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Consider using @sammyt's [rhumb library](https://github.com/sammyt/rhumb) for more RESTful style resource identification. Currently we are bombing all resources to all nodes. This was restricted per-r…
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There is a desire for `add` and `match` to throw errors for segments that are not properly encoded:
> `add` and `match` are input *conservative* and throws errors on invalid paths, however they *sh…
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I'm getting a crash in master trying to display time zones that are in a GeoJSON file.
[ne_10m_time_zones_bug.zip](https://github.com/AnalyticalGraphicsInc/cesium/files/2846330/ne_10m_time_zones_bu…
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I am pretty sure this issue would have been brought up previously, but I have looked and looked and I can't seem to see the issue resolved, or find a direct thread about the issue.
The Bug itself is …
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In GRASS GIS with the latest `proj`, the following code works, and shows that the EPSG:3413 projection has a -6 % area error in N. Greenland and a +8 area error in S. Greenland.
```
GRASS> g.proj …