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)
7 p- w) N( a# T) l. l- W{
( X# @% T0 B0 z( P$ h6 w tag_t* pcurve;
( w( Q9 P8 b9 ]+ O int n=0;
8 J0 ~& o) q. n4 ?6 B if (!face)
{
0 R+ k, S; f9 Z) L  uc1601("no face is get",1);
  return NULL_TAG;
# J8 {3 N/ W( D6 v }
UF_CALL(UF_MODL_create_isocurve(face,type,w,0.001,&pcurve,&n));

8 ]# C# n! C0 J4 X% c if (pcurve)
8 X( g/ q2 ^6 A: i2 a8 N {
" O+ U" a! G$ s: v% N& Z& s  tag_t t1=pcurve[0];
  UF_free(pcurve);
. W5 ?& M8 s3 ^' P0 V6 ]& ]* }1 E  return t1;
}
else
{
# j7 q/ y( I( S) n  uc1601("no spline",1);
  return NULL_TAG;
}
}
# J$ e2 A1 r  P" M8 j8 V$ E0 U9 `