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author | Campbell Barton <ideasman42@gmail.com> | 2019-03-19 16:57:52 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2019-03-19 17:07:07 +0300 |
commit | d1b9b838be8a09735f52637fecdd2a8200eb9862 (patch) | |
tree | 3fbab92692cea2bbcd3b6f898761d6b580401e68 /source/blender/blenlib/intern/kdtree_2d.c | |
parent | 84fe4cdcb37c28469749d673006c8e6083bede7f (diff) |
BLI_kdtree: add 2D kdtree support
Some users of the 3D versions were storing 2D data in it.
Using a 3D tree for 2D data adds a spatially redundant branch
every 3rd level, as well as some extra memory use, best avoid this.
Diffstat (limited to 'source/blender/blenlib/intern/kdtree_2d.c')
-rw-r--r-- | source/blender/blenlib/intern/kdtree_2d.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/source/blender/blenlib/intern/kdtree_2d.c b/source/blender/blenlib/intern/kdtree_2d.c new file mode 100644 index 00000000000..8ad55e2d964 --- /dev/null +++ b/source/blender/blenlib/intern/kdtree_2d.c @@ -0,0 +1,25 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** \file + * \ingroup bli + */ + +#define KD_DIMS 2 +#define KDTREE_PREFIX_ID BLI_kdtree_2d +#define KDTree KDTree_2d +#define KDTreeNearest KDTreeNearest_2d +# include "kdtree_impl.h" |