AnalyticalGraphicsInc/czml-writer — pull request #62 by mramato (2014-04-07 17:53:49+00:00)
Title: Fan geometry

This goes along with AnalyticalGraphicsInc/cesium/pull/1601

The biggest part of this change is that I brought back `spherical` to allow for directions to have magnitude. We actually used to support this a long time ago but pulled it out; turns out we needed it after all.