Suggestion : Overlay endpoints for crop and warp transformations

[pierrelabreche]

It would be convenient if the corners of the bounding rectangle or quadrilateral area were labeled 1 2 3 4. A coarse adjustment when zoomed out could be followed by a precise adjustment when zoomed in. When zooming at 100% it would be easy to precisely adjust the points and navigate between them.

A reference interface is the level transformation, where a line's endpoints are labeled 1 2.

[jsachs]

Implemented for next release.