//计算点到直线垂足 static double Cuizhu(AcGePoint2d dian,AcGePoint2d
suipinleft,AcGePoint2d suipinright,double ssss,int xuan){
if(xuan==1)
sssss=pol(suipinleft,suipinright,1);
if(xuan==2)
sssss=ssss;
fanwei=pol(suipinleft,dian,1);
rec(suipinleft,sssss, pinju*cos((sssss-fanwei)*4*atan(1.0)/180),1);
acutPrintf(_T(" 垂足 ptEnd0.x =%.4lf 垂足 ptEnd0.y =%.4lf"), ptEnd0.x,ptEnd0.y);
return ptEnd0.x;
}
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