Feature map not displayed when playing with PCA modes

[ben2k]

For 3D models that embed surface features in PCA model, at the Analyze step of ShapeworkStudio, the feature map for reconstructed mean model is well displayed (see screenshot #1), however, the feature map is not displayed at the PCA step when we can play with PCA variation mode (see screenshot #2).

It may be useful to visualize the feature variations along shape variations at this step.

To reproduce, simply load the feature_map_example in ShapeWorkStudio, do the Grooming, do the Optimization and go to Analyse step, PCA, and play with Std. Dev. cursor --> even the Feature map is selected in the combobox (bottom of 3D window), the colors are uniform (but we see the color bar, see screenshot #2).

[sheryjoe]

Related to #985

[akenmorris]

Merged