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)
  T1 _0 W- ], K$ M3 G4 f0 {{
: s' y- n! o- G. }) P tag_t* pcurve;
int n=0;
: [. e* z! S# @% s/ |1 G, f7 q+ V5 u if (!face)
{
8 _) v7 d' C- |" ~* t% o% x1 ^8 |! k  uc1601("no face is get",1);
: y: T: x+ j* t- o  return NULL_TAG;
$ q% H# i( Z$ x9 Y# ? }
9 J& `! N+ r; c9 v9 P! l UF_CALL(UF_MODL_create_isocurve(face,type,w,0.001,&pcurve,&n));
, @5 L( r0 s( R! u2 @, ~
: p  k( f& N4 [* q- p: I* f& {# u+ b if (pcurve)
. Z0 N  V5 F6 F, f. O4 U {
  tag_t t1=pcurve[0];
  UF_free(pcurve);
  return t1;
}
" `7 C' k6 q5 S* d5 M4 p+ H: q- a else
: c2 c4 i* b- P1 Q. c2 |; n, q {
' G4 e2 Y% b1 q% q: F: Q5 ~  uc1601("no spline",1);
! R! }, |1 @- t& u( i" I  j1 ~% }  return NULL_TAG;
}
; [4 i' \$ _! l; R}
! Y6 M; Q8 v% x* S1 ~' r