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)
& V" o: `/ t5 |- c% x{
( A4 t# i( }; q6 }9 W; B0 ` tag_t* pcurve;
( t% `% v/ k" n" K  e# b- J) ^ int n=0;
( m1 @4 r! ?/ @. f, @. b if (!face)
{
+ ^/ H! h; ^% J0 ~: R9 Z* c- Q  z  uc1601("no face is get",1);
  return NULL_TAG;
}
3 `: Q# `3 i0 D' v9 d UF_CALL(UF_MODL_create_isocurve(face,type,w,0.001,&pcurve,&n));

7 S! R3 c+ }4 v/ @ if (pcurve)
{
  tag_t t1=pcurve[0];
  UF_free(pcurve);
  return t1;
}
2 \8 P1 j, S2 E1 m else
$ _  z+ \6 t' p; \ {
1 ~4 U# P6 N% N  uc1601("no spline",1);
7 @) O& L% ]: p+ N  return NULL_TAG;
}
}
5 Y. V- L3 t6 o, q# X. }2 O- M, [; ~