分享一段求曲面等参数曲线的代码

ll_109

tag_t Extract_isoCurve(tag_t face,double w,int type)
{
3 M# u; `9 `5 n1 W, w tag_t* pcurve;
4 w& n, X8 R7 l4 V int n=0;
if (!face)
( b% S; L! o% b {
  uc1601("no face is get",1);
  return NULL_TAG;
}
. a# j5 J- y3 i! E8 b$ ?: ^) r UF_CALL(UF_MODL_create_isocurve(face,type,w,0.001,&pcurve,&n));
2 I, C3 v# r. X' \0 j* k( R# e/ S1 z
* _0 H  n; {& [6 Z( { if (pcurve)
: e- Q; X$ g/ `# M  a {
  tag_t t1=pcurve[0];
3 Q: j( k+ R# ?  UF_free(pcurve);
5 ?6 \; q- y6 g  \; Q/ u; `  return t1;
}
9 y2 ]! y! p; ?$ n  b% X else
{
6 o( L& g/ O8 Y' k4 P4 {6 H  uc1601("no spline",1);
6 q9 p/ X- |: I' H% Y  return NULL_TAG;
8 i; t' e6 H2 A }
}
( b: P$ r. T# Z8 X2 A* Y6 w