OBJECT ARX 循环创建多线段（提示用户选择线宽，颜色，点）

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1. //创建多段线==================
   
2. 
   
3. 
   
4. static ads_real GetWidth(){
   
5. ads_real width = 0;
   
6. if(acedGetReal(_T("\n输入线宽"),&width) == RTNORM){
   
7. return width;
   
8. }
   
9. else{
   
10. return 0;
    
11. }
    
12. 
    
13. 
    
14. }
    
15. 
    
16. static int GetColorIndex(){
    
17. int colorIndex = 0;
    
18. if(acedSetColorDialog(colorIndex,Adesk::kFalse,256) != IDOK){
    
19. return 0;
    
20. }
    
21. else{
    
22. return colorIndex;
    
23. }
    
24. }
    
25. 
    
26. 
    
27. 添加多段线，用户指定点、线宽、颜色
    
28. static void TESTaddplcmd(){
    
29. int colorIndex = 255;
    
30. ads_real width = 1;
    
31. 
    
32. 
    
33. int index = 2;
    
34. ads_point ptStart;
    
35. 
    
36. 
    
37. //提示用户输入起始点
    
38. if(acedGetPoint(NULL,_T("\n输入第一点"),ptStart) != RTNORM){
    
39. 
    
40. return;
    
41. }
    
42. 
    
43. ads_point ptPrevious,ptCurrent;//前一个参考点，当前拾取的点
    
44. acdbPointSet(ptStart,ptPrevious);
    
45. AcDbObjectId polyId;//多段线的ID
    
46. 
    
47. 
    
48. 输入第二点
    
49. acedInitGet(NULL,_T("W C O"));
    
50. int rc = acedGetPoint(ptPrevious,_T("\n输入下一点[宽度(W)颜色(C)]<完成(O)>:"),ptCurrent);
    
51. while(rc == RTNORM || rc == RTKWORD){
    
52. 
    
53. if(rc == RTKWORD){如果用户输入了关键字
    
54. 
    
55. CString kword;
    
56. if(acedGetInput(kword.GetBuffer()) != RTNORM)
    
57. return;
    
58. if(kword.Compare(_T("W")) == 0){
    
59. width = GetWidth();
    
60. }
    
61. else if (kword.Compare(_T("C")) == 0){
    
62. colorIndex = GetColorIndex();
    
63. }
    
64. else if(kword.Compare(_T("O")) == 0){
    
65. return;
    
66. }
    
67. else{
    
68. acutPrintf(_T("\n无效的关键字"));
    
69. }
    
70. 
    
71. 
    
72. }
    
73. 
    
74. 
    
75. 如果用户输入了点
    
76. else if(rc == RTNORM){
    
77. if(index == 2){
    
78. 创建多线段
    
79. AcDbPolyline* pPoly = new AcDbPolyline(2);
    
80. 
    
81. AcGePoint2d ptGe1,ptGe2;//两个节点
    
82. ptGe1[X] = ptPrevious[X];
    
83. ptGe1[Y] = ptPrevious[Y];
    
84. ptGe2[X] = ptCurrent[X];
    
85. ptGe2[Y] = ptCurrent[Y];
    
86. pPoly->addVertexAt(0,ptGe1);
    
87. pPoly->addVertexAt(1,ptGe2);
    
88. 
    
89. 
    
90. 修改多线段的颜色和线宽
    
91. pPoly->setConstantWidth(width);
    
92. pPoly->setColorIndex(colorIndex);
    
93. 
    
94. 
    
95. 添加到模型
    
96. polyId = LoadEntity(pPoly);
    
97. pPoly->close();
    
98. }
    
99. 
    
100. 
     
101. else if(index > 2){
     
102. 修改多线段
     
103. AcDbPolyline* pPoly;
     
104. acdbOpenObject(pPoly,polyId,AcDb::kForWrite);
     
105. AcGePoint2d ptGe;//增加的节点
     
106. ptGe[X] = ptCurrent[X];
     
107. ptGe[Y] = ptCurrent[Y];
     
108. 
     
109. 
     
110. pPoly->addVertexAt(index - 1,ptGe);
     
111. 修改多线段的颜色和线宽
     
112. 
     
113. pPoly->setConstantWidth(width);
     
114. pPoly->setColorIndex(colorIndex);
     
115. 
     
116. 
     
117. //pPoly->setColorIndex(colorIndex);
     
118. pPoly->close();
     
119. }
     
120. index ++;
     
121. acdbPointSet(ptCurrent,ptPrevious);
     
122. }
     
123. acedInitGet(NULL,_T("W C O"));
     
124. rc = acedGetPoint(ptPrevious,_T("\输入下一点"),ptCurrent);
     
125. 
     
126. }
     
127. 
     
128. 
     
129. 
     
130. 
     
131. }

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