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[gsfjay <>]

 

Thank you,

  I think I can reconstruction the surface following Chapter36
"3D Skin Surface Meshing", but the problem is that ,everytime I try to construct a Skin_surface_3 object by a set of points, there's an error like this"CGAL error: precondition violation!
Expr: orientation(p0, p1, p2, p3) == POSITIVE",I wanna know what leads to this error, and if there is anything I can do to solve it.

  My purpose is to get a triangulation which is most approach a 3D surface with a set of points of this surface. So hope you can give some suggestions or some examples.

 

 

 

 

在2008-10-03，"Laurent Rineau" <> 写道：
>On Friday 03 October 2008 15:47:02 gsfjay wrote:
>> Hi All,
>>   To generate a surface, I have to construct a surface as a parameter for
>> the make_surface_mesh function. In the example
>> "examples/Surface_mesher/mesh_an_implicit_function.cpp". It use a
>> "sphere_function" to construct the surface, I think I haven't got the exact
>> meaning of doing this. What's more, I have a set of points describing
>> someone's face, so what can I do if I want to get the mesh of this face.
>
>What you need is a reconstruction algorithm, which produces a surface mesh 
>from a set of points, and not a surface mesh generator.
>
>-- 
>Laurent Rineau, PhD
>Engineer at GeometryFactory
>http://www.geometryfactory.com/
>-- 
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