答复: [vtkusers] the adjacent vertex

[PAUL]

Hello all:

I have been baffled the question for a long time. 

I am studying an algorithm of judging convex or non-convex polyhedron.

If  every  vertex  is above the plane which contain three vertexes adjacent
to the vertex, the polyhedron is convex .

For an example, there are eight vertexes on a cube. And each vertex is
adjacent to three other vertexes. 

My question is:

When an arbitrary vertex is accessed, how to know the other three vertexes’
coordinate?

 

I need your helps! Thank you!!

 

 

  _____  

发件人: vtkusers-bounces+polinzhuo=163.com at vtk.org
[mailto:vtkusers-bounces+polinzhuo=163.com at vtk.org] 代表 PAUL
发送时间: 2007年1月4日 13:44
收件人: vtkusers at vtk.org
主题: [vtkusers] the adjacent vertex

 

Hi,all:

There is an arbitrary vertex on a polyhedron. How to find the other three
vertexes which are adjacent to the vertex?

Paul

 

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