请zzz等高手们过来指点一下！！

qiaozhp

我想用函数UF_MODL_create_law_extension来创建一个曲面，它的输入参数为结构体struct UF_MODL_lawext_data_s
{  
   UF_MODL_lawext_dirref_t ref_type; /* Direction reference type  
                                     */  
   void *length_law_parms;           /* For the specification of   
                                        length law parameters */  
   void *angle_law_parms;            /* For the specification of   
                                        angle law parameters */  
   UF_STRING_p_t curve;   
  
前面两个参数length_law_parms和angle_law_parms怎么给它定义？？UF_MODL_type.h里说用UF_MODL_create_law（）定义，可是找不到这个函数阿。:-S例如我想定义length_law为Constant Law，law value为50怎么处理阿？

qiaozhp

zzz

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zzz

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zzz

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zzz