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Fix: Assert when curve has no evaluated points 

It is valid for NURBS curves to have no evaluated points in some cases.
This commit is contained in:
Hans Goudey 2022-04-12 14:56:14 -05:00
parent b1d915d027
commit 359b6baf32
1 changed files with 2 additions and 2 deletions
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4
source/blender/blenkernel/BKE_curves.hh
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@ -377,6 +377,7 @@ namespace curves {
*/
inline int curve_segment_size(const int points_num, const bool cyclic)
{
BLI_assert(points_num > 0);
return cyclic ? points_num : points_num - 1;
}
@ -681,8 +682,7 @@ inline IndexRange CurvesGeometry::lengths_range_for_curve(const int curve_index,
BLI_assert(cyclic == this->cyclic()[curve_index]);
const IndexRange points = this->evaluated_points_for_curve(curve_index);
const int start = points.start() + curve_index;
const int size = curves::curve_segment_size(points.size(), cyclic);
return {start, size};
return {start, points.is_empty() ? 0 : curves::curve_segment_size(points.size(), cyclic)};
}
inline Span<float> CurvesGeometry::evaluated_lengths_for_curve(const int curve_index,