OBJECT ARX 操作图层

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2. //添加图层
3. static void TESTaddlayercmd(){
5. CString strLayerName;
6. if(acedGetString(Adesk::kFalse,采用T("\n输入层名称"),strLayerName.GetBuffer()) != RTNORM){
7. return;
8. }
11. 获得当前图形的层表
12. AcDbLayerTable* pLayerTbl;
13. acdbHostApplicationServices()->workingDatabase()->getLayerTable(pLayerTbl,AcDb::kForWrite);
16. 是否已经包含制定的层表记录
17. if(pLayerTbl->has(strLayerName)){
18. pLayerTbl->close();
19. return;
20. }
23. 创建新的层表记录
24. AcDbLayerTableRecord* pLayerTblRcd;
25. pLayerTblRcd = new AcDbLayerTableRecord();
26. pLayerTblRcd->setName(strLayerName);
28. 将新创建的层表记录添加到层表中
29. AcDbObjectId layerTblRcdId;
30. pLayerTbl->add(layerTblRcdId,pLayerTblRcd);
31. acdbHostApplicationServices()->workingDatabase()->setClayer(layerTblRcdId);
32. pLayerTblRcd->close();
33. pLayerTbl->close();
36. }
41. //修改图层颜色============================
44. static void TESTlayercolorcmd(){
45. CString strLayerName;
46. if(acedGetString(Adesk::kFalse,采用T("\n输入图层的名称:"),strLayerName.GetBuffer()) != RTNORM){
47. return;
48. }
49. 获得当前的图层列表
50. AcDbLayerTable* pLayerTbl;
51. acdbHostApplicationServices()->workingDatabase()->getLayerTable(pLayerTbl,AcDb::kForRead);
52. 判断是否包含指定名称的层表记录
53. if(!pLayerTbl->has(strLayerName)){
54. pLayerTbl->close();
55. return;
56. }
59. 获得制定层表记录的指针
60. AcDbLayerTableRecord* pLayerTblRcd;
61. pLayerTbl->getAt(strLayerName,pLayerTblRcd,AcDb::kForWrite);
64. 弹出颜色对话框
65. AcCmColor oldColor = pLayerTblRcd->color();
66. int nCurColor = oldColor.colorIndex();//旧的颜色
67. int nNewColor = oldColor.colorIndex();//用户选择的颜色
68. if(acedSetColorDialog(nNewColor,Adesk::kFalse,nCurColor)){
70. AcCmColor color;
71. color.setColorIndex(nNewColor);
72. pLayerTblRcd->setColor(color);
73. }
74. pLayerTblRcd->close();
75. pLayerTbl->close();
80. }
83. //删除图层
84. static void TESTdellayercmd(){
85. CString strLayerName;
86. if(acedGetString(Adesk::kFalse,采用T("\n输入图层名称"),strLayerName.GetBuffer()) != RTNORM){
87. return;
88. }
91. 获得当前的图层列表
92. AcDbLayerTable* pLayerTbl;
93. acdbHostApplicationServices()->workingDatabase()->getLayerTable(pLayerTbl,AcDb::kForRead);
94. 判断是否包含指定名称的层表记录
95. if(!pLayerTbl->has(strLayerName)){
96. pLayerTbl->close();
97. return;
98. }
99. 获得制定层表记录的指针
100. AcDbLayerTableRecord* pLayerTblRcd;
101. pLayerTbl->getAt(strLayerName,pLayerTblRcd,AcDb::kForWrite);
102. pLayerTblRcd->erase();
105. pLayerTblRcd->close();
106. pLayerTbl->close();
114. }
117. 导出层的信息到文本文件中
118. static void TESTexportlayercmd(){
119. //创建要导出的文本文件
120. CStdioFile f;
121. CFileException e;
122. CString pFileName;
123. pFileName = 采用T("D:\\layer.txt");
124. if(!f.Open(pFileName.GetString(),CFile::modeCreate|CFile::modeWrite,&e)){
125. acutPrintf(采用T("\n创建文件失败"));
126. return;
127. }
130. 获得层表指针
131. AcDbLayerTable *pLayerTbl;
132. AcDbLayerTableRecord* pLayerTblRcd;
133. acdbHostApplicationServices()->workingDatabase()->getLayerTable(pLayerTbl,AcDb::kForRead);
134. 使用遍历器访问每条层表记录
135. AcDbLayerTableIterator* pItr;
136. pLayerTbl->newIterator(pItr);
137. for(pItr->start();!pItr->done();pItr->step()){
138. pItr->getRecord(pLayerTblRcd,AcDb::kForRead);
139. 输出图层的信息
140. CString strLayerInfo;
141. TCHAR* layerName;
142. pLayerTblRcd->getName(layerName);
144. 名称
145. strLayerInfo = layerName;
146. free(layerName);
147. strLayerInfo.Append(采用T(","));
148. 颜
149. CString strColor;
150. AcCmColor color = pLayerTblRcd->color();
151. strColor.Format(采用T("%d"),color.colorIndex());
152. strLayerInfo.Append(strColor);
153. 线型
154. CString strLineType;
155. AcDbLinetypeTableRecord* pLinetypeTblRcd;
156. acdbOpenObject(pLinetypeTblRcd,pLayerTblRcd->linetypeObjectId(),AcDb::kForRead);
157. TCHAR* linetypeName;
158. pLinetypeTblRcd->getName(linetypeName);
159. pLinetypeTblRcd->close();
160. strLineType = linetypeName;
161. free(linetypeName);
164. strLayerInfo.Append(strLineType);
165. strLayerInfo.Append(采用T(","));
168. 线宽
169. CString strLineWeight;
170. AcDb::LineWeight lineWeight = pLayerTblRcd->lineWeight();
171. strLineWeight.Format(采用T("%d"),lineWeight);
172. strLayerInfo.Append(strLineWeight);
175. /写文件
176. f.WriteString(strLayerInfo);
177. f.WriteString(采用T("\n"));
178. pLayerTblRcd->close();
183. }
186. delete pItr;
187. pLayerTbl->close();
190. }

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