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)
  I# q4 a7 y8 T0 q% z{
tag_t* pcurve;
9 E! z2 K6 z6 L$ m4 s: P5 Y- g( f& r% A int n=0;
if (!face)
{
% B2 Y1 w- }2 ^+ b  uc1601("no face is get",1);
  return NULL_TAG;
}
, C, [3 o' o4 r' Z$ T1 d UF_CALL(UF_MODL_create_isocurve(face,type,w,0.001,&pcurve,&n));
2 K6 J3 A; e  m1 k; ^% M
  s3 I7 p  s1 D if (pcurve)
; I" w0 K6 e  k0 Y0 |: t {
( B* D0 }, Z6 c3 v) D# \* @9 f  tag_t t1=pcurve[0];
  UF_free(pcurve);
  return t1;
}
else
) N7 y( }( c5 P: z! Y1 b {
4 Z1 c# [1 Q% c1 f  ?( A  uc1601("no spline",1);
; B0 w9 b* }/ ]/ F' M6 C  return NULL_TAG;
3 N, G" [: Y+ B# i7 e( e" ^) o }
. ?& g1 `7 B6 K2 f+ H3 {}