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)
% n9 E: l5 [* {{
( T0 ^0 R3 R7 S: Z3 [: D tag_t* pcurve;
int n=0;
if (!face)
9 Y5 z/ Q. e$ S2 t9 P/ } {
  uc1601("no face is get",1);
, H- K$ C- D; @$ n  return NULL_TAG;
; ^0 Z9 D/ J: f, V3 W2 K. i }
% I+ f" ?( R2 {7 d8 R6 x UF_CALL(UF_MODL_create_isocurve(face,type,w,0.001,&pcurve,&n));

: w8 l' g) b( S0 N& q, I if (pcurve)
; z- R; s8 M9 j7 g) R% ^ {
$ L6 n, u$ |* H, C3 L9 m  tag_t t1=pcurve[0];
  UF_free(pcurve);
3 M+ v% S; @% l+ ^4 _9 h, Q! O  return t1;
}
  h* A. W1 k8 \ else
' g5 t4 w* ?! H. Q {
  uc1601("no spline",1);
  return NULL_TAG;
! L8 E+ g1 [! j3 D }
" E& b) {  O" B3 x! E9 R3 @}