songsenand
/
cgal
mirror of https://github.com/CGAL/cgal
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #3794 from maxGimeno/Demo-Fix_off_reading-GF 

PMP: Fix in normalize()
This commit is contained in:
Laurent Rineau 2019-03-26 17:01:53 +01:00
parent 1c50c94e82 a508397a58
commit 14e93b7fe2
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/compute_normal.h
View File

@ -49,8 +49,13 @@ namespace internal {
{ {
typename GT::FT norm = CGAL::approximate_sqrt( typename GT::FT norm = CGAL::approximate_sqrt(
traits.compute_squared_length_3_object()(v)); traits.compute_squared_length_3_object()(v));
//If the vector is small enough, approx_sqrt might return 0, and then we get nan values.
//To avoid that, we check the resulted norm. If it is 0, we don't normalize.
if(norm != 0)
{
v = traits.construct_divided_vector_3_object()(v, norm ); v = traits.construct_divided_vector_3_object()(v, norm );
} }
}
template<typename Point template<typename Point
, typename GT> , typename GT>