inkscape - An experimental livecoding plugin for Inkscape

	Commit message (Collapse)	Author	Files	Lines
2006-07-12	Previously graph layout was done using the Kamada-Kawai layout algorithm	Tim Dwyer	1	-47/+0
	implemented in Boost. I am replacing this with a custom implementation of a constrained stress-majorization algorithm. The stress-majorization algorithm is more robust and has better convergence characteristics than Kamada-Kawai, and also simple constraints can be placed on node position (for example, to enforce downward-pointing edges, non-overlap constraints, or cluster constraints). Another big advantage is that we no longer need Boost. I've tested the basic functionality, but I have yet to properly handle disconnected graphs or to properly scale the resulting layout. This commit also includes significant refactoring... the quadratic program solver - libvpsc (Variable Placement with Separation Constraints) has been moved to src/libvpsc and the actual graph layout algorithm is in libcola. (bzr r1394)
2006-05-10	Apparently a problem was reported with one of the test cases.	Tim Dwyer	1	-5/+23
	I can't reproduce the problem, however solve_VPSC code in inkscape was getting quite out of date with that in www.sf.net/projects/adaptagrams. I've updated the code, which may fix the problem, or at least if it's reported again then I'll know it's still an issue. (bzr r803)
2006-02-06	DBL_MIN replaced by -DBL_MAX which is what I meant all along.	Tim Dwyer	1	-1/+1
	Fixes bug. (bzr r89)
2006-01-26	Constructor cleaned up a bit.	Tim Dwyer	1	-9/+6
	(bzr r31)
2006-01-26	Fixed bug to do with comparison of invalid constraints in pairing heaps.	Tim Dwyer	1	-1/+4
	Also numerical problem with constraint generation fixed. (bzr r30)