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* code cleanup: quiet warnings with gcc.Campbell Barton2012-11-201-1/+1
| | | (bzr r11888)
* Documentation update pass.Jon A. Cruz2011-10-231-1/+3
| | | (bzr r10692)
* Remove "using namespace" from libcola headers.Jon A. Cruz2011-06-271-0/+2
| | | (bzr r10374)
* warning cleanup (no functional changes)Campbell Barton2011-06-251-3/+3
| | | | | | - enclose && / || with brackets to avoid ambiguity. - don't cast from booleans to pointers. (bzr r10359)
* Applying fixes for gcc 4.3 build issues (closes LP: #169115)Bryce Harrington2008-01-311-1/+2
| | | (bzr r4629)
* Previously graph layout was done using the Kamada-Kawai layout algorithm Tim Dwyer2006-07-121-0/+360
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)