handle-transform is non intuitive
Submitted by Ulr..@..urg.de
Link to original bug (#795954)
Description
Created attachment 371820 Screen shot from a video layouter showing 3D rotation in different colors (R,G,B) and the previous position in yellow
Trying handle-transform, I notice that I can add up to three or four handles, but the bottom help text says the same text for each handle. Moving them around it's not quite clear what moving each handle actually does. For three points it looks like the none moved handles define a line around which the image is rotated, but I couldn't find out for four points. The description in online help is everything, but descriptive: "People who are used to editing on touch surfaces might find this tool strangely easy to grasp." For illustration I'll attach a screenshot how things could be done better.
Attachment 371820, "Screen shot from a video layouter showing 3D rotation in different colors (R,G,B) and the previous position in yellow":
Version: 2.10.0