1、 static long z=17; x=(171*x)%30269; y=(172*y)%30307; z=(170*z)%30323; long x1=x; long y1=y; long z1=z; double T,R; T=double(x1)/double(30269)+double(y1)/double(30307)+double(z1)/double(30323); R=T-long(T); return R;angle(T_line line,long p) double c; double a; double b; c=distance(line.p0,line.p1);
2、a=distance(line.p0,p); b=distance(line.p1,p); double z=0; z=acos(b*b+a*a-c*c)/(2*a*b); return z;long T_TIN:Max(T_line line,vector usableList) long index=-1; double xitaMax=0; double xita=0; for(long i=0;iusableList.size();i+) xita=angle(line,usableListi); if(xitaMaxSelectObject(brush); / pDC-SetPixe
3、l(pp,RGB(255,0,0);Ellipse(&pp);createTin() vector usalbePlointList; /生成第0个三角形 T_tri tri; long k=0; /第L0边 T_line line0; line0.p0=0; line0.p1=1; line0.useCount=1; lineList.push_back(line0); tri.L0=lineList.size()-1; / for(long i=2;i+)/生成可用点的连表 usalbePlointList.push_back(i); index=Max(line0,usalbePloin
4、tList); /生成 L1,L2边 T_line line1; T_line line2; line1.p0=0; line1.p1=index; line1.useCount=1; lineList.push_back(line1); tri.L1=lineList.size()-1; line2.p0=1; line2.p1=index; line2.useCount=1; lineList.push_back(line2); tri.L2=lineList.size()-1; triList.push_back(tri); /CString s; /s.Format(连接顶点0,1,%
5、d,index); /AfxMessageBox(s); /* 对于第k个三角形为拓展三角形时 */ while(1) /*第L0边*/ if(lineListtriListk.L0.useCount2)/是可拓展边 /找拓展顶点 long tuo=-1; if(lineListtriListk.L0.p0=lineListtriListk.L1.p0 |lineListtriListk.L0.p1=lineListtriListk.L1.p0) tuo=lineListtriListk.L1.p1; if(lineListtriListk.L0.p0=lineListtriListk.L1.
6、p1 |lineListtriListk.L0.p1=lineListtriListk.L1.p1) tuo=lineListtriListk.L1.p0; usalbePlointList.clear(); double Fuhao=0; double Fu=0; Fuhao=F(lineListtriListk.L0,tuo); for(long i=0;i+)/找到可用的顶点 if( lineListtriListk.L0.p0!=i /不是三角形的顶点 &lineListtriListk.L0.p1!=ilineListtriListk.L1.p0!lineListtriListk.L
7、1.p1!lineListtriListk.L2.p0!lineListtriListk.L2.p1!=i) Fu=F(lineListtriListk.L0,i); if(Fuhao*Fu0) int idx=-1; idx=Max(lineListtriListk.L0,usalbePlointList); long lineIdx1=-1; long lineIdx2=-1; int cout1=0; int cout2=0; T_line line1; T_line line2; line1.p0=lineListtriListk.L0.p0; line1.p1=idx; line2.
8、p0=lineListtriListk.L0.p1; line2.p1=idx; for(long i=0;lineList.size(); if(line1=lineListi) lineIdx1=i; cout1=lineListlineIdx1.useCount; if(line2=lineListi) lineIdx2=i; cout2=lineListlineIdx2.useCount; if(cout12&cout22) T_tri tri; tri.L0=triListk.L0; if(cout1=0) T_line line; line.p0=lineListtriListk.
9、L0.p0; line.p1=idx; line.useCount=1; lineList.push_back(line); tri.L1=lineList.size()-1; if(cout1=1) lineListlineIdx1.useCount=2; tri.L1=lineIdx1; if(cout2=0) line.p0=lineListtriListk.L0.p1; tri.L2=lineList.size()-1; if(cout2=1) lineListlineIdx2.useCount=2; tri.L2=lineIdx2; triList.push_back(tri); l
10、ineListtriListk.L0.useCount=2; /*第L1边*/ if(lineListtriListk.L1.useCount if(lineListtriListk.L1.p0=lineListtriListk.L0.p0 |lineListtriListk.L1.p1=lineListtriListk.L0.p0) tuo=lineListtriListk.L0.p1; if(lineListtriListk.L1.p0=lineListtriListk.L0.p1 |lineListtriListk.L1.p1=lineListtriListk.L0.p1) tuo=li
11、neListtriListk.L0.p0; Fuhao=F(lineListtriListk.L1,tuo); Fu=F(lineListtriListk.L1,i); idx=Max(lineListtriListk.L1,usalbePlointList); line1.p0=lineListtriListk.L1.p0; line2.p0=lineListtriListk.L1.p1; tri.L0=triListk.L1; line.p0=lineListtriListk.L1.p0; line.p0=lineListtriListk.L1.p1; lineListtriListk.L
12、1.useCount=2; /*第L2边*/ if(lineListtriListk.L2.useCount if(lineListtriListk.L2.p0=lineListtriListk.L0.p0 |lineListtriListk.L2.p1=lineListtriListk.L0.p0) if(lineListtriListk.L2.p0=lineListtriListk.L0.p1 |lineListtriListk.L2.p1=lineListtriListk.L0.p1) Fuhao=F(lineListtriListk.L2,tuo); Fu=F(lineListtriListk.L2,i); idx=Max(lineListtriListk.L2,usalbePlointList); line1.p0=lineListtriListk.L2.p0; line2.p0=lineListtriListk.L2.p1; tri.L0=triListk.L2; line.p0=lineListtriListk.L2.p0; if(
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