Delaunay triangulation
1,先花个圆: detail模式执行。
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
#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);
2,花外接圆:
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