OBJECT ARX三维图形绘制

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1. 创建三维图形
4. 三维长方体==================
5. static void TESTaddboxcmd(){
7. AcDb3dSolid* pSolid = new AcDb3dSolid();
8. Acad::ErrorStatus es = pSolid->createBox(40,50,30);
9. if(es != Acad::eOk){
10. acedAlert(采用T("创建长方体失败"));
11. delete pSolid;
12. return;
13. }
14. //acedAlert(采用T("创建成功"));
17. 使用几何变换矩阵移动长方体
18. AcGeMatrix3d xform;
19. AcGeVector3d vec(100,100,100);
20. xform.setToTranslation(vec);
21. pSolid->transformBy(xform);
24. LoadEntity(pSolid);
27. }
30. //三维圆锥==============
31. static void TESTaddcylinedercmd(){
33. AcDb3dSolid* pSolid = new AcDb3dSolid();
34. pSolid->createFrustum(30,10,10,0);
35. LoadEntity(pSolid);
36. }
41. 三维弹簧
42. static void TESTaddspirecmd(){
44. 半径和每周在垂直方向的增量
45. double radius,deltaVertical;
48. 螺旋线的旋转圈数和组成一圈
49. double number,segment;
50. radius = 30,deltaVertical = 12;
51. number = 5,segment = 30;
54. 计算点的个数和角度间隔
55. int n = number * segment;
56. double angle = 8 * atan(1.0)/segment;
59. 计算控制点的坐标
60. AcGePoint3dArray points;
61. for(int i = 0;i < n + 1;i ++){
63. AcGePoint3d vertex;
64. vertex[X] = radius * cos(8 * i *
65. atan(1.0) / segment);
66. vertex[Y] = radius * sin(8 * i *
67. atan(1.0) / segment);
68. vertex[Z] = i * deltaVertical / segment;
69. points.append(vertex);
72. }
75. 创建螺旋路径
76. AcDb3dPolyline* p3dPoly = new
77. AcDb3dPolyline(AcDb::k3dSimplePoly,
78. points);
81. AcDbObjectId spireId = LoadEntity(p3dPoly);
84. 这时已经创建了2D模型，增加3D圆截面
87. AcGeVector3d vec(0,1,0);
88. AcGePoint3d ptCenter(30,0,0);
89. AcDbCircle* pCircle = new AcDbCircle(ptCenter,
90. vec,3);
91. AcDbObjectId circleId = LoadEntity(pCircle);
94. 根据圆创建面域
97. AcDbObjectIdArray boundaryIds,regionIds;
98. boundaryIds.append(circleId);
99. regionIds = CreateRegion(boundaryIds);
101. 打开拉伸截面和拉伸路径
102. AcDbRegion* pRegion;
103. acdbOpenObject(pRegion,regionIds.at(0),AcDb::kForRead);
104. AcDb3dPolyline* pPoly;
105. acdbOpenObject(pPoly,spireId,AcDb::kForRead);
108. 进行拉伸操作
111. AcDb3dSolid* pSolid = new AcDb3dSolid();
112. pSolid->extrudeAlongPath(pRegion,pPoly);
113. LoadEntity(pSolid);
116. pPoly->close();
117. pRegion->close();
120. }
124. 多段线形成面域旋转=============
125. static void TESTaddreventcmd(){
126. AcGePoint3d vertex[5];
127. vertex[0] = AcGePoint3d(15,0,0);
128. vertex[1] = AcGePoint3d(45,0,0);
129. vertex[2] = AcGePoint3d(35,10,0);
130. vertex[3] = AcGePoint3d(41,18,0);
131. vertex[4] = AcGePoint3d(15,20,0);
133. AcGePoint3dArray points;
134. for(int i = 0;i < 5; i++){
137. points.append(vertex[i]);
138. }
139. 创建作为旋转截面的多段线
142. AcDb3dPolyline* p3dPoly = new AcDb3dPolyline(AcDb::k3dSimplePoly,points,true);
143. AcDbObjectId polyId = LoadEntity(p3dPoly);
146. 将闭合的多段线转化为面域
147. AcDbObjectIdArray boundaryIds,regionIds;
148. boundaryIds.append(polyId);
149. regionIds = CreateRegion(boundaryIds);
152. 进行旋转操作
155. AcDbRegion* pRegion;
156. Acad::ErrorStatus es = acdbOpenObject(pRegion,regionIds.at(0),
157. AcDb::kForRead);
158. AcDb3dSolid* pSolid = new AcDb3dSolid();
159. es = pSolid->revolve(pRegion,AcGePoint3d::kOrigin,
160. AcGeVector3d(0,1,0),8 * atan(1.0));
163. LoadEntity(pSolid);
164. pRegion->close();
167. }

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