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* Fundamentally reworked version of the 3D box tool (among many other things, ↵Maximilian Albert2007-12-131-64/+8
| | | | | this fixes bugs #168900 and #168868). See mailing list for details. Sorry for this single large commit but it was unfeasible to keep the history. (bzr r4224)
* Enable center-dragging of boxes ('in perspective') within the XY-planeMaximilian Albert2007-08-171-0/+17
| | | (bzr r3497)
* Draw perspective lines for infinite VPs, too (they are updated during ↵Maximilian Albert2007-08-171-0/+18
| | | | | scrolling or zooming); don't create knots for infinite VPs on the canvas (bzr r3495)
* New/updated 3D box auxiliary/convenience functions (e.g., allow ↵Maximilian Albert2007-07-041-0/+1
| | | | | (un)constrained movement of corners, too; determine midpoints of edges) (bzr r3183)
* More meaningful name for 3D axis directionsMaximilian Albert2007-07-031-1/+1
| | | (bzr r3169)
* First (very limited) version of the 3D box tool; allows for drawing of new ↵Maximilian Albert2007-06-211-0/+63
boxes in a fixed perspective without any live interaction. (bzr r3084)