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标题: 请看如下代码由什么问题？ [打印本页]

作者: mizzle 时间: 2004-10-25 20:39
标题: 请看如下代码由什么问题？
下面代码编译可以通过，但是不能生成曲线，如果把
      
       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 vec[3] = {0.0000,0.0000,0.0000};
       double crvatr[3] = {0.000,0.000,0.000};

  UF_CURVE_pt_slope_crvatr_t point_data[NUMBER_POINTS] =
   {
      {  point1[3],
        UF_CURVE_SLOPE_NONE,    vec[3],
    UF_CURVE_CRVATR_NONE,    crvatr[3]
      },
      {  point2[3],
         UF_CURVE_SLOPE_NONE,    vec[3],
         UF_CURVE_CRVATR_NONE, crvatr[3]
      },
      {  point3[3],
         UF_CURVE_SLOPE_NONE,    vec[3],
         UF_CURVE_CRVATR_NONE,    crvatr[3]
      },
      {  point4[3],
         UF_CURVE_SLOPE_NONE,    vec[3],
       UF_CURVE_CRVATR_NONE,    crvatr[3]
      },
      {  point5[3],
         UF_CURVE_SLOPE_NONE,    vec[3],
      UF_CURVE_CRVATR_NONE,    crvatr[3]
  
      }
   };

  /* Point/slope curve attribute array */

  /* Arrays of user's defining point data */
        double parameters[NUMBER_POINTS] = {0.00, 0.89,  1.73,  2.23,  2.85};

        int  save_def_data = 1;
        tag_t spline_tag;

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

作者: zzz 时间: 2004-10-26 14:18
看你输出的spline_tag_out是多少？如果等于0，就是对的，否则可以用UF_get_fail_message()来得到错误原因。

作者: mizzle 时间: 2004-10-26 14:32
spline_tag_out 是对的，但是，&spline_tag的值是3435973836，肯定是不对的了，而且根本就不能画线出来，要是不用参数就可以啊

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