Added handling of zero points

2016-06-24 10:02:39 +01:00
parent f47be656b4
commit fb9591d6bc
1 changed files with 9 additions and 2 deletions
--- a/src/osgUtil/PolytopeIntersector.cpp
+++ b/src/osgUtil/PolytopeIntersector.cpp
@@ -49,8 +49,15 @@ namespace PolytopeIntersectorUtils
                if (distance > _maxDistance) _maxDistance = distance;
                if (_numPoints==MaxNumIntesections) break;
            }
-            center /= value_type(_numPoints);
-            _distance = referencePlane.distance( center );
+            if (_numPoints>0)
+            {
+                center /= value_type(_numPoints);
+                _distance = referencePlane.distance( center );
+            }
+            else
+            {
+                _distance = _maxDistance;
+            }
        }
        bool operator<(const PolytopeIntersection& rhs) const { return _distance < rhs._distance; }