irstv/orbisgis — pull request #582 by ebocher (2013-10-25 10:21:03+00:00)
Title: FIX centroid definition and #569

This PR changes the term centroid by interior to be coherent with the algorithm used by renderer.
It fixes also the #569.
Note that the same pb appears for units of measure. It will be fixed asap but some changes are needed before in the legend api.