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  • Delaunay triangulation

    1,先花个圆: detail模式执行。

    #define XY 0x00
    #define XZ 0x01
    #define YZ 0x02
    #define pi 3.1415926
    #define close 0x01
    #define unclose 0x00
    
    
    vector center = {1,0,0};
    float r = 1;
    
    void drawCicle(vector center;float r;int segments;int PLANE;int isClose)
    {
    
        for(int i=0;i<segments;i++)
        {   if(PLANE == XY)
            {
                float x = r * cos(2 * pi / segments * i) + center.x;
                float y = r * sin(2 * pi / segments * i) + center.y;
                vector p = set(x,y,0);
                addpoint(geoself(),p);
            }
            else if(PLANE == XZ)
            {
                float x = r * cos(2 * pi / segments * i) + center.x;
                float z= r * sin(2 * pi / segments * i) + center.y;
                vector p = set(x,0,z);
                addpoint(geoself(),p);
            }
            else
            {
                float y = r * cos(2 * pi / segments * i) + center.x;
                float z= r * sin(2 * pi / segments * i) + center.y;
                vector p = set(0,y,z);
                addpoint(geoself(),p);
            }
        }
       if(isClose)
       {
           int aprim = addprim(0,"poly");
           for(int i=0;i<segments;i++)
           {
                addvertex(geoself(),aprim,i);
           }
       }
        
    }
    
    drawCicle(center,r,120,YZ,close);
    View Code

    2,花外接圆:

    .

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  • 原文地址:https://www.cnblogs.com/gearslogy/p/7686651.html
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