AnalyticalGraphicsInc/cesium — pull request #1835 by mramato (2014-06-16 15:59:15+00:00)
Title: Fix DynamicPathVisualizer handling of ReferenceProperty

`DynamicPathVisualizer` was relying on a hidden `_referenceFrame` property on position objects. This is not the case with `ReferenceProperty`. This changes it to use the public API.

Also, the subsampling code for paths was not unwrapping `ReferenceProperty` instances, causing it to fallback to generic sub-optimal sampling. This addresses that as well and adds tests to verify it.

CC @emackey