NX 二次开发中创建曲线命令及获取点，线，圆弧信息源码

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NX 二次开发中创建曲线命令及获取点，线，圆弧信息源码
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1. <p>static void do_UGopenapi()
   
2. {
   
3. /*
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4. Create Curve
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5. */
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6. // create line
   
7. UF_CURVE_line_t line_coords;
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8. tag_t line;
   
9. line_coords.start_point[0]=0;
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10. line_coords.start_point[1]=0;
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11. line_coords.start_point[2]=0;
    
12. line_coords.end_point[0]=100;
    
13. line_coords.end_point[1]=100;
    
14. line_coords.end_point[2]=100;
    
15. UF_CURVE_create_line(&line_coords,&line);</p><p> //create arc
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16. UF_CURVE_arc_t arc_coords;
    
17. tag_t arc,marix,wcs;
    
18. UF_CSYS_ask_wcs(&wcs);
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19. UF_CSYS_ask_matrix_of_object(wcs,&marix);
    
20. arc_coords.arc_center[0]=0;
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21. arc_coords.arc_center[1]=0;
    
22. arc_coords.arc_center[2]=0;
    
23. arc_coords.start_angle=90*DEGRA;
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24. arc_coords.end_angle=270*DEGRA;
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25. arc_coords.radius=100;
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26. arc_coords.matrix_tag=marix;
    
27. UF_CURVE_create_arc(&arc_coords,&arc);
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28. // create point
    
29. double point_coords[3]={100,100,100};
    
30. tag_t point;
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31. UF_CURVE_create_point(point_coords,&point);
    
32. 
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33. // create Plane
    
34. double    origin_point[3]={100,100,100};
    
35. double    plane_normal[3]={1,0,0};
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36. tag_t     plane_tag;   
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37. UF_MODL_create_plane(origin_point,plane_normal,&plane_tag);</p><p> /*
    
38. Get the curve information
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39.   */
    
40. UF_UI_open_listing_window();
    
41. char msg[132];
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42. // get line information
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43. UF_CURVE_line_t line_info;
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44. UF_CURVE_ask_line_data(line,&line_info);
    
45. sprintf(msg,"line coords:\n\t%lf,%lf,%lf;\n\t%lf,%lf,%lf",line_info.start_point[0],
    
46.   line_info.start_point[1],line_info.start_point[2],line_info.end_point[0],line_info.end_point[1],
    
47.   line_info.end_point[2]);
    
48. UF_UI_write_listing_window(msg);
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49. //get the point information
    
50. double point_info[3];
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51. UF_CURVE_ask_point_data(point,point_info);
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52. sprintf(msg,"\npoint coords:\n\t%lf,%lf,%lf",point_info[0],point_info[1],point_info[2]);
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53. UF_UI_write_listing_window(msg);</p><p> //get the arc information
    
54. UF_CURVE_arc_t arc_info;
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55. UF_CURVE_ask_arc_data(arc,&arc_info);
    
56. sprintf(msg,"\nArc Center coords:\n\t%lf,%lf,%lf;\nArc start Angle:\n\t%lf;\nArc End Angle:\n\t%lf;\nArc Radius:\n\t%lf;",
    
57.   arc_info.arc_center[0],arc_info.arc_center[1],arc_info.arc_center[2],
    
58.   arc_info.start_angle*RADEG,arc_info.end_angle*RADEG,arc_info.radius
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59.   );
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60. UF_UI_write_listing_window(msg);
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61. // calculate the arc length
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62. double arc_length;
    
63. UF_CURVE_ask_arc_length(arc,0,1,UF_MODL_UNITS_PART,&arc_length);
    
64. sprintf(msg,"\nArc Length:\n\t%lf",arc_length);
    
65. UF_UI_write_listing_window(msg);
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66. }
    
67. </p><p> </p>

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