多段线动态切割闭合区域

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1. #include "StdAfx.h"
   
2. #include "StdArx.h"
   
3. #include <dbpl.h>
   
4. #include "..\..\Common\Others\ConvertUtil.h"
   
5. #include "..\..\Common\Document\DwgDatabaseUtil.h"
   
6. #include <dbents.h>
   
7. #include <dbregion.h>
   
8. #include "..\..\Common\Entity\RegionUtil.h"
   
9. 
   
10. // This is command 'INTERSECT1'
    
11. void ZffMyProjectintersect1()
    
12. {
    
13. // TODO: Implement the command
    
14. ads采用name polyLinename;
    
15. ads采用name polyLinename2;
    
16. ads采用point pnt;
    
17. ads采用point pnt2;
    
18. 
    
19. AcDbPolyline *pPolyline=NULL;
    
20. AcDbPolyline *pPoly=NULL;
    
21. AcDbRegion *pRegion1=NULL;
    
22. AcDbRegion *pRegion2=NULL;
    
23. acedEntSel("\n请选择截取多段线!",polyLinename,pnt);
    
24. AcDbObjectId polyLineId;
    
25. acdbGetObjectId(polyLineId,polyLinename);
    
26. AcDbEntity *pEnt=NULL;
    
27. AcGePoint3dArray pts,pts2;
    
28. acdbOpenObject(pEnt,polyLineId,AcDb::kForWrite);
    
29. 
    
30. if (pEnt->isKindOf(AcDbPolyline::desc()))
    
31. {
    
32. pPolyline=AcDbPolyline::cast(pEnt);
    
33. pEnt->close();
    
34. }
    
35. AcDbVoidPtrArray curves;
    
36. int num=pPolyline->numVerts();
    
37. for (int i=0;i<num;i++)
    
38. {
    
39. AcGePoint2d pt;
    
40. pPolyline->getPointAt(i,pt);
    
41. pts.append(CConvertUtil::ToPoint3d(pt));
    
42. }
    
43. pPolyline->getSplitCurves(pts,curves);
    
44. pPolyline->close();
    
45. AcDbObjectIdArray curvesId;
    
46. AcDbCurve *pCurve=NULL;
    
47. for (i=0;i<curves.length();i++)
    
48. {
    
49. pCurve=static采用cast<AcDbCurve*>(curves[i]);
    
50. curvesId.append(CDwgDatabaseUtil::PostToModelSpace(pCurve));
    
51. }
    
52. pCurve->close();
    
53. 
    
54. acedEntSel("\n请选择被截取多段线!",polyLinename2,pnt2);
    
55. acdbGetObjectId(polyLineId,polyLinename2);
    
56. acdbOpenObject(pEnt,polyLineId,AcDb::kForWrite);
    
57. if (pEnt->isKindOf(AcDbPolyline::desc()))
    
58. {
    
59. pPoly=AcDbPolyline::cast(pEnt);
    
60. pEnt->close();
    
61. //pPoly->intersectWith(pPolyline,AcDb::kOnBothOperands,pts,0,0);
    
62. }
    
63. AcDbVoidPtrArray curves2;
    
64. num=pPoly->numVerts();
    
65. for (i=0;i<num;i++)
    
66. {
    
67. AcGePoint2d pt2;
    
68. pPoly->getPointAt(i,pt2);
    
69. pts2.append(CConvertUtil::ToPoint3d(pt2));
    
70. }
    
71. pPoly->getSplitCurves(pts2,curves2);
    
72. pPoly->close();
    
73. AcDbObjectIdArray curvesId2;
    
74. AcDbCurve *pCurve2=NULL;
    
75. for (i=0;i<curves2.length();i++)
    
76. {
    
77. pCurve2=static采用cast<AcDbCurve*>(curves2[i]);
    
78. curvesId2.append(CDwgDatabaseUtil::PostToModelSpace(pCurve2));
    
79. }
    
80. pCurve2->close();
    
81. AcDbObjectIdArray regId=CRegionUtil::Add(curvesId);
    
82. AcDbObjectIdArray regId2=CRegionUtil::Add(curvesId2);
    
83. for (i=0;i<curvesId.length();i++)
    
84. {
    
85. acdbOpenObject(pCurve,curvesId[i],AcDb::kForWrite);
    
86. pCurve->erase();
    
87. pCurve->close();
    
88. }
    
89. for (i=0;i<curvesId2.length();i++)
    
90. {
    
91. acdbOpenObject(pCurve2,curvesId2[i],AcDb::kForWrite);
    
92. pCurve2->erase();
    
93. pCurve2->close();
    
94. }
    
95. acdbOpenObject(pRegion1,regId[0],AcDb::kForWrite);
    
96. acdbOpenObject(pRegion2,regId2[0],AcDb::kForWrite);
    
97. pRegion1->booleanOper(AcDb::kBoolIntersect,pRegion2);
    
98. pRegion1->close();
    
99. pRegion2->close();
    
100. }

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