polyadvent

commit 2bd9a53e59878ce0cb35aa4b587be11cab29ed07
parent 69d38281d116861ba4501f8020f2ee7050a59539
Author: William Casarin <jb55@jb55.com>
Date:   Thu,  3 May 2018 13:47:25 -0700

fix poisson disk sampling issue

Diffstat:
M
src/poisson.c
 | 
6
+++++-

1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/poisson.c b/src/poisson.c
@@ -231,8 +231,12 @@ poisson_disk_samples(const double point_dist, double size,
         for (size_t j = 0; j < ARRAY_SIZE(nearby); ++j) {
           int neari = nearby[j];
 
-          assert(neari < cells);
+          if (neari < 0)
+            continue;
           struct point *near = &samples[neari];
+
+          assert(near);
+
           double dx = near->x - candidate.x;
           double dy = near->y - candidate.y;
           double dist = sqrt(dx * dx + dy * dy);