【求助】斑竹看过来ug二次开发如何创建曲线？

mizzle · 发表于 2004-11-12 14:42:14

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/* ---- Enter your callback code here ----- */
int degree = 3;
int periodicity = 0;
int num_points = NUMBER_POINTS;
   double point1[3] = {-0.0539, 0.0511, 0.0000};
double point2[3] = {-0.4801, 0.8428, 0.0000};
double point3[3] = {2.0000, 0.9000, 3.5956};
double point4[3] = {2.3456, 1.3456, 3.7890};
double point5[3] = {3.1000, 2.4567, 3.3214};
double slope1[ 3 ] = {0,0,0};
double slope2[ 3 ] = {0,0,0};
double slope3[ 3 ] = {0,0,0};
double slope4[ 3 ] = {0,0,0};
double slope5[ 3 ] = {0,0,0};
double crvatr1[ 3 ] = {0,0,0};
double crvatr2[ 3 ] = {0,0,0};
double crvatr3[ 3 ] = {0,0,0};
double crvatr4[ 3 ] = {0,0,0};
double crvatr5[ 3 ] = {0,0,0};


/* Point/slope curve attribute array */

   UF_CURVE_pt_slope_crvatr_t point_data[NUMBER_POINTS] =
{
   {  point1[3],
      UF_CURVE_SLOPE_AUTO,    slope1[ 3 ],
      UF_CURVE_CRVATR_NONE,    crvatr1[ 3 ]
   },
   {  point2[3],
      UF_CURVE_SLOPE_NONE,    slope2[ 3 ],
      UF_CURVE_CRVATR_NONE, crvatr2[ 3 ]
   },
   {  point3[3],
      UF_CURVE_SLOPE_NONE,    slope3[ 3 ],
      UF_CURVE_CRVATR_NONE,    crvatr3[ 3 ]
   },
   {  point4[3],
      UF_CURVE_SLOPE_DIR,    slope4[ 3 ],
      UF_CURVE_CRVATR_VEC,    crvatr4[ 3 ]
   },
   {  point5[3],
      UF_CURVE_SLOPE_VEC,    slope5[ 3 ],
      UF_CURVE_CRVATR_VEC,    crvatr5[ 3 ]
   }
};
/*
  UF_CURVE_pt_slope_crvatr_t point_data[NUMBER_POINTS] =
   {
      {  {-0.0539, 0.0511, 0.0000},
      UF_CURVE_SLOPE_AUTO,    {0,0,0},
         UF_CURVE_CRVATR_NONE,    {0,0,0}
      },
      {  {-0.4801, 0.8428, 0.0000},
         UF_CURVE_SLOPE_NONE,    {0,0,0},
         UF_CURVE_CRVATR_NONE, {0,0,0}
      },
      {  {2.0000, 0.9000, 3.5956},
         UF_CURVE_SLOPE_NONE,    {0,0,0},
         UF_CURVE_CRVATR_NONE,    {0,0,0}
      },
      {  {2.3456, 1.3456, 3.7890},
         UF_CURVE_SLOPE_DIR,    {0,0,0},
         UF_CURVE_CRVATR_VEC,    {0,0,0}
      },
      {  {3.1000, 2.4567, 3.3214},
         UF_CURVE_SLOPE_VEC,    {0,0,0},
         UF_CURVE_CRVATR_VEC,    {0,0,0}
      }
   };*/  /* Arrays of user's defining point data */
double parameters[NUMBER_POINTS] = {0.00, 0.89,  1.73,  2.23,  2.85};

int i, save_def_data = 1;
tag_t spline_tag;

/* Create B-spline curve */
UF_CURVE_create_spline_thru_pts(degree,
                                       periodicity,
                                       num_points,
                                    point_data,
                                       parameters,
                                       save_def_data,
                                       [$spline_tag)]


UF_terminate ();
上面是我创建曲线的程序，如果直接输入点的值的话，可以创建曲线如程序里绿色的部分，但是我定义一个变量，然后把点的值赋值给变量，就不好使了，如程序中红色的部分，请问为什么。