inkscape/src/libcola/conjugate_gradient.cpp, branch livecoding

Put adaptagrams into its own folder

2018-04-29T14:25:32+00:00

Updated libs from the Adaptagrams project: libavoid, libcola and libvspc; changed the code to match the new API

2017-07-01T11:36:41+00:00

Signed-off-by: Sylvain Chiron

fixed warnings

2006-07-14T05:16:38+00:00

(bzr r1410)

- added toggle buttons for directed layout (doesn't do anything yet) and overlap avoiding layout to connector toolbar

2006-07-12T06:37:29+00:00

 - added icon for directed layout toggle button
 - removed old ref to remove_rectangle_overlaps-test from src/Makefile.am

(bzr r1396)

Previously graph layout was done using the Kamada-Kawai layout algorithm

2006-07-12T00:55:58+00:00

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)