Ran myran=new Ran(17);
for (i=0;i<N;i++) {
pvec[i].x[0]=myran.doub();
pvec[i].x[1]=myran.doub();
}
Voronoi vor=new Voronoi(pvec);
int m,nsite,jfirst;
Voronoi.Voredge edge; // = new Voronoi.Voredge();
Point end1=new Point(2),end2=new Point(2);
Triel tt;