CGAL users discussion list

[Marc Glisse <>]

On Thu, 16 Oct 2014, Adam Getchell wrote:

> Hi Marc,
> Thanks for the suggestion. I wrote a function to iterate on the vertices and 
> counted them, and I still only ever get two, for both my test cases where I 
> insert 4 for a
> tetrahedron and 8 for a 16cell:
>
> https://github.com/acgetchell/CDT-plusplus/blob/master/src/Delaunay.h
>
> https://github.com/acgetchell/CDT-plusplus/blob/master/unittests/SdTriangulationTest.cpp

Point(0,0,0,0)

are you expecting this to be the origin in R^4? Since you are using a 
Homogeneous kernel, I would expect it to be a point in R^3, of coordinates 
(0./0.,0./0.,0./0.). And indeed in debug mode (which you should be using 
when writing new code) I am getting:

terminate called after throwing an instance of 'CGAL::Assertion_exception'
  what():  CGAL ERROR: assertion violation!
Expr: (w!=0)
File: /usr/include/CGAL/Kernel_d/PointHd.h
Line: 162
Explanation: PointHd::construction: w == 0.


--
Marc Glisse