I am using ArcObjects, namely RasterGeometryProc, to apply rotation on grids. The transformation works fine. However, when looking at the grids properties in ArcGis, the cell sizes has changed.
Without rotation, the cell size is 50 X 50 as expected. After applying rotation transformation (30 degrees), I get 72.728 X 64.539.
Seems like the new size is the extent of the rotated cell ?
Is this a bug, or is it the way it is supposed to be ?