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段代码定义了一个外部命令AsdkInsertAllBlocks,它遍历当前图形文档的块表,对于每个非匿名块定义,调用insertBlock函数将其插入到图纸上。插入点默认设置为原点(0, 0, 0),你可以根据需要调整插入点逻辑。请确保在使用前正确配置你的ObjectARX开发环境,并将上述代码编译为ARX插件加载到AutoCAD中。
- #include <acad.h>
- #include <aced.h>
- #include <adslib.h>
- #include <dbmain.h>
- #include <dbblocktable.h>
- #include <dbblocktablerecord.h>
- #include <dbents.h>
- using namespace std;
- // 插入块的函数
- void insertBlock(AcDbDatabase* db, const ACHAR* blockName, const AcGePoint3d& insertionPoint)
- {
- Acad::ErrorStatus status;
-
- // 创建插入块的参数
- AcDbObjectId blockTableRecordId;
- status = db->getSymbolTable()->lookup(blockName, blockTableRecordId);
- if (status != Acad::eOk) {
- acutPrintf(L"Block %s not found.", blockName);
- return;
- }
-
- AcDbBlockTableRecordPtr pBlockTableRecord;
- status = pBlockTableRecord.openObject(blockTableRecordId, AcDb::OpenMode::kForRead);
- if (status != Acad::eOk) {
- acutPrintf(L"Failed to open block record.");
- return;
- }
-
- // 执行插入操作
- AcDbInsert* pInsert = new AcDbInsert();
- pInsert->setBlockTableRecord(pBlockTableRecord);
- pInsert->setPosition(insertionPoint);
- pInsert->setScaleFactors(1.0, 1.0, 1.0);
- status = pInsert->upgradeOpen();
- if (status == Acad::eOk) {
- status = pInsert->insert(db);
- if (status != Acad::eOk) {
- acutPrintf(L"Failed to insert block.");
- }
- pInsert->close();
- } else {
- acutPrintf(L"Failed to upgrade object.");
- delete pInsert;
- }
- }
- // 主函数:遍历块表并插入所有块
- void insertAllBlocks(AcDbDatabase* db, const AcGePoint3d& baseInsertionPoint)
- {
- AcDbBlockTable* pBlockTable;
- Acad::ErrorStatus status = db->getBlockTable(pBlockTable);
- if (status != Acad::eOk) {
- acutPrintf(L"Failed to get Block Table.");
- return;
- }
-
- AcDbBlockTableIterator* pIter;
- pIter = pBlockTable->newIterator();
- for (pIter->start(); !pIter->done(); pIter->step())
- {
- AcDbBlockTableRecord* pRecord;
- status = pIter->getRecord(pRecord, AcDb::OpenMode::kForRead);
- if (status != Acad::eOk) continue;
-
- // 确保是块定义而非其他类型的记录
- if (pRecord->isAnonymousBlock()) {
- pRecord->close();
- continue;
- }
-
- ACHAR* blockName = pRecord->getName();
- // 这里可以根据需要调整插入点,例如加上偏移量或使用某种模式
- insertBlock(db, blockName, baseInsertionPoint);
- pRecord->close();
- }
- delete pIter;
- }
- // 外部命令定义
- void AsdkInsertAllBlocks()
- {
- Acad::ErrorStatus status;
- AcDbDatabase* pDb = acdbHostApplicationServices()->workingDatabase();
- AcGePoint3d insertionPoint(0, 0, 0); // 设置初始插入点
-
- insertAllBlocks(pDb, insertionPoint);
- }
- // ObjectARX模块入口点
- ACRX采用DECLARE采用MODULE(NeededFunctions)
- ACRX采用ENTRY采用FUNCTION(AsdkInsertAllBlocks)
- END采用ARX采用DEFINE采用MODULE()
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这段代码在每次插入块之后,都会调用getBlockBoundingBoxMaxPoint函数估算当前块的大致尺寸(这里简化为边界框的最大点),然后通过updateInsertionPoint函数更新下一个块的插入位置。请注意,这个方法非常基础,实际应用中可能需要更复杂的逻辑来精确处理块的布局,比如考虑块的旋转、缩放、以及不规则形状等。此外,为了简化,这里假设所有块都是正向放置的,并且在X-Y平面上进行布局调整。
- // 获取块的边界框(简化版,仅考虑矩形边界)
- AcGePoint3d getBlockBoundingBoxMaxPoint(AcDbBlockTableRecord* pRecord)
- {
- AcGePoint3d minPoint, maxPoint;
- pRecord->getBoundingBox(minPoint, maxPoint);
- return maxPoint; // 返回边界框的最大点,可用于估计块的“右下”位置
- }
- // 更新插入点的函数,基于前一个块的大小
- AcGePoint3d updateInsertionPoint(const AcGePoint3d& currentInsertionPoint, const AcGePoint3d& blockSize)
- {
- // 假设块大小由其边界框的最大点表示,这里简单地在X和Y方向上各增加一个单位长度
- // 实际应用中,可能需要考虑块的具体布局要求,如对齐方式、间距等
- return AcGePoint3d(currentInsertionPoint.x + blockSize.x + 1.0,
- currentInsertionPoint.y + blockSize.y + 1.0,
- currentInsertionPoint.z);
- }
- // 更新后的主函数:遍历块表并插入所有块
- void insertAllBlocksWithOffset(AcDbDatabase* db, AcGePoint3d& insertionPoint)
- {
- AcDbBlockTable* pBlockTable;
- Acad::ErrorStatus status = db->getBlockTable(pBlockTable);
- if (status != Acad::eOk) {
- acutPrintf(L"Failed to get Block Table.");
- return;
- }
-
- AcDbBlockTableIterator* pIter;
- pIter = pBlockTable->newIterator();
- for (pIter->start(); !pIter->done(); pIter->step())
- {
- AcDbBlockTableRecord* pRecord;
- status = pIter->getRecord(pRecord, AcDb::OpenMode::kForRead);
- if (status != Acad::eOk) continue;
-
- if (pRecord->isAnonymousBlock()) {
- pRecord->close();
- continue;
- }
-
- insertBlock(db, pRecord->getName(), insertionPoint);
-
- // 获取并更新插入点
- AcGePoint3d blockSize = getBlockBoundingBoxMaxPoint(pRecord);
- insertionPoint = updateInsertionPoint(insertionPoint, blockSize);
-
- pRecord->close();
- }
- delete pIter;
- }
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