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| author | David Robillard <d@drobilla.net> | 2013-12-18 20:17:03 +0000 |
|---|---|---|
| committer | David Robillard <d@drobilla.net> | 2013-12-18 20:17:03 +0000 |
| commit | 0b6320b122e546f873cc8d8f3a90f8c5b97a423e (patch) | |
| tree | 94afc141ee1ac76ea29e458fa90febfc7dbcc3dd | |
| parent | 1dffad8f3b0d7919357bc3a10ccfd3f66b3c38ba (diff) | |
| download | ganv-0b6320b122e546f873cc8d8f3a90f8c5b97a423e.tar.gz ganv-0b6320b122e546f873cc8d8f3a90f8c5b97a423e.tar.bz2 ganv-0b6320b122e546f873cc8d8f3a90f8c5b97a423e.zip | |
FDGL: Add slight directional force to push sinks to the right/down.
git-svn-id: http://svn.drobilla.net/lad/trunk/ganv@5183 a436a847-0d15-0410-975c-d299462d15a1
| -rw-r--r-- | src/Canvas.cpp | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/Canvas.cpp b/src/Canvas.cpp index 58f1e9e..56c4f21 100644 --- a/src/Canvas.cpp +++ b/src/Canvas.cpp @@ -775,9 +775,17 @@ GanvCanvasImpl::layout_iteration() continue; } - const Vector tail_pos = { edge->impl->coords.x1, edge->impl->coords.y1 }; - const Vector head_pos = { edge->impl->coords.x2, edge->impl->coords.y2 }; - const Vector f = spring_force(head_pos, tail_pos, 1.0); + // Add slight directional force to push sinks to the right/down + static const double DIR_MAGNITUDE = -400.0; + Vector dir = { 0.0, 0.0 }; + switch (_gcanvas->direction) { + case GANV_DIRECTION_RIGHT: dir.x = DIR_MAGNITUDE; break; + case GANV_DIRECTION_DOWN: dir.y = DIR_MAGNITUDE; break; + } + + const Vector tpos = { edge->impl->coords.x1, edge->impl->coords.y1 }; + const Vector hpos = { edge->impl->coords.x2, edge->impl->coords.y2 }; + const Vector f = vec_add(dir, spring_force(hpos, tpos, 1.0)); apply_force(tail, head, f); } |