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["Sebastien Loriot (GeometryFactory)" <>]

Try replacing Cell by Cell_handle and it by (*it) in the for loop.

Sebastien.

On 12/14/2017 09:33 AM, Acecross wrote:
> I have tried the following approach to calculate the volume of my
> alpha_shape_3:
> double get_alpha_3_volume(const Alpha_shape3 &A,
> Alpha_shape3::Classification_type c) {
>          std::vector<Alpha_shape3::Cell> cells;
>          A.get_alpha_shape_cells(std::back_inserter(cells), c);
>          double volume = 0;
>          for (std::vector<Alpha_shape3::Cell>::iterator it = cells.begin();
> it != cells.end(); it++) {
>                  Point3 p1 = it->vertex(0)->point();
>                  Point3 p2 = it->vertex(1)->point();
>                  Point3 p3 = it->vertex(2)->point();
>                  Point3 p4 = it->vertex(3)->point();
>                  Alpha_shape3::Tetrahedron t(p1,p2,p3,p4);
>                  volume += t.volume();
>          }
>          return volume;
> I constantly get a classification type error:
> Severity Code Description Project File Line Suppression State
> Error C2679 binary '=': no operator found which takes a right-hand operand
> of type
> 'CGAL::internal::CC_iterator<CGAL::Compact_container&lt;CGAL::Alpha_shape_cell_base_3&lt;Gt,CGAL::Triangulation_cell_base_3&lt;GT,CGAL::Triangulation_ds_cell_base_3&lt;TDS2>>,ExactAlphaComparisonTag,Weighted_tag>,CGAL::Default,CGAL::Default,CGAL::Default>,false>'
> (or there is no acceptable conversion) SebsAlphaPackage
> c:\dev\cgal-4.11\include\cgal\alpha_shape_3.h 812
> Does someone see my Error?
> Thanking you in anticipation,
>
> Acecross
>
>
>
> --
> Sent from: http://cgal-discuss.949826.n4.nabble.com/