|
在AutoCAD ObjectARX中,要实现炸开当前图纸中所有多重插入块(即MInsertBlock,也称为阵列块或多行多列插入块)的功能,你需要编写一个递归函数来处理嵌套的块参照,并确保正确地处理所有子块。以下是一个简化的示例代码:
- #include "dbmain.h"
- #include "acdb.h"
- #include "aced.h"
- // 定义一个辅助函数来递归地炸开块参照及其包含的所有子块
- void RecursiveExplodeBlock(AcDbBlockReference* blkRef)
- {
- AcDbIdMapping idMap;
- Acad::ErrorStatus es;
- // 炸开当前块参照
- es = blkRef->explode(idMap);
- if (es != Acad::eOk)
- {
- acutPrintf("Failed to explode block reference.\n");
- return;
- }
- // 遍历生成的新对象并处理可能的嵌套块
- AcDbVoidPtrArray entitySet;
- idMap.getMap().getObjects(entitySet);
- for (int i = 0; i < entitySet.length(); ++i)
- {
- AcDbEntity* pEnt = static采用cast<AcDbEntity*>(entitySet[i]);
- if (pEnt->isKindOf(AcDbBlockReference::desc()))
- {
- AcDbBlockReference* subBlkRef = AcDbBlockReference::cast(pEnt);
- RecursiveExplodeBlock(subBlkRef); // 递归调用炸开子块
- }
- }
- }
- // 炸开当前图纸中所有多重块
- void ExplodeAllMultiInsertBlocksInCurrentDrawing()
- {
- AcDbDatabase* db = acdbHostApplicationServices()->workingDatabase();
- // 开始事务
- AcTransaction trans;
- trans.start();
- // 遍历模型空间
- AcDbBlockTable* blockTable;
- Acad::ErrorStatus es = db->getSymbolTable(blockTable, AcDb::kForRead);
- if (es == Acad::eOk)
- {
- AcDbBlockTableRecord* modelSpace;
- es = blockTable->getAt(ACDB采用MODEL采用SPACE, modelSpace, AcDb::kForWrite);
- if (es == Acad::eOk)
- {
- AcDbObjectIdArray objectsInModelSpace;
- modelSpace->getBlockReferences(objectsInModelSpace);
- for (int i = 0; i < objectsInModelSpace.length(); ++i)
- {
- AcDbObjectPointer<AcDbBlockReference> blkRef(objectsInModelSpace[i], AcDb::kForWrite);
- if (blkRef.openStatus() == Acad::eOk && blkRef->isMInsertBlock())
- {
- RecursiveExplodeBlock(blkRef.object());
- }
- }
- modelSpace->close();
- }
- blockTable->close();
- }
- // 如果需要,同样遍历布局空间并进行相同操作
- // 提交事务
- trans.commit();
- }
- // 在主程序入口处调用
- void main()
- {
- acedInitCmds();
- ExplodeAllMultiInsertBlocksInCurrentDrawing();
- }
复制代码 |
|