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)
& G6 Q0 Z1 V" k: f) [- V{
tag_t* pcurve;
' Z- P# e4 J; x, C int n=0;
) b4 `! y2 ^; X  }: E/ T if (!face)
7 V0 t: h$ X% f1 o* u- m3 i* Z {
6 x8 M6 h; u3 e2 m7 Y) V5 \  uc1601("no face is get",1);
  E; x* B, S+ k3 F  u9 L( f+ c  return NULL_TAG;
0 r9 }* C5 |3 y }
UF_CALL(UF_MODL_create_isocurve(face,type,w,0.001,&pcurve,&n));
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if (pcurve)
4 B2 o& o$ {, R5 `+ ~4 }4 @; i# B$ N- M {
. J5 u# R+ \3 X1 r  tag_t t1=pcurve[0];
  UF_free(pcurve);
. v- `% k+ m6 L' R5 C3 g( n& _  return t1;
' D: X: L) f( V0 S) A  f* V. K }
else
1 I5 p% M. m) U1 ^ {
8 C* ^% _$ X5 Q8 W2 ~) [  uc1601("no spline",1);
2 `- d$ Z# j( T* I7 Z) K3 |# J) S3 L  return NULL_TAG;
% F% w1 v6 d: ` }
}
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