如何将用wblock命令导出的块添加到图纸中？

pengyh · 发表于 2006-5-31 22:17:00

我在一个dwg图纸中做好了所有的块，然后我用wblock命令将这些块保存成dwg文件，那么我在需要的时候就可以直接将这些块添加到我的其他的dwg文件中，可是在程序中如何实现插入以dwg格式存放在磁盘某个位置的块呢？

pengyh · 发表于 2006-6-2 17:35:00

问题我已经通过广大无私人事的帮助终于完满的解决了，再次公布出来给大家共同分享，同时感谢帮助我的朋友们！
Acad::ErrorStatus insertBolck(const char *blockName)
{
//将块从文件读出，添加到当前数据库中
AcDbDatabase *pNewDb =new AcDbDatabase(Adesk::kFalse);
Acad::ErrorStatus es = pNewDb->readDwgFile("C:\\Documents and Settings\\pengsl\\My Documents\\ARX\\Step01\\TEL_CD.dwg" , _SH_DENYNO,false);
if (es!=Acad::eOk)
{
  acutPrintf("\nThe file  cannot be opend");
  return es;
}
AcDbDatabase *pDb =acdbHostApplicationServices()->workingDatabase ();
// pDb->insert(AcGeMatrix3d::kIdentity, pNewDb );这样添加的块是打散的，而且也没有自定义属性。

AcDbObjectId blockId;

if((es=pDb->insert(blockId, "TEL_CD",pNewDb, true))==Acad::eOk)
{
  acutPrintf("\ninsert ok\n");
}
else
{
  acutPrintf("\nInsert failed");
  delete pNewDb;
  return es;
}
//将块从当前数据库中添加到图纸中并且显示出来，此时块还不具备自定义属性
AcGePoint3d ptOrg(10,10,0);
AcGeScale3d XrefScale(10,10,1);
AcDbObjectId blockTelCdId;
AcDbBlockTable *pBlockTable;
pDb->getSymbolTable(pBlockTable, AcDb::kForRead);
pBlockTable->getAt("TEL_CD", blockTelCdId);
AcDbBlockReference *pBlkRef = new AcDbBlockReference;

pBlkRef->setBlockTableRecord(blockTelCdId);
pBlkRef->setPosition(ptOrg);
pBlkRef->setRotation(0.0);//设定转角
pBlkRef->setScaleFactors(XrefScale);//设定放大比例
AcDbBlockTableRecord *pBlockTableRecord;

pBlockTable->getAt(ACDB_MODEL_SPACE, pBlockTableRecord, AcDb::kForWrite);
pBlockTable->close();

AcDbObjectId newEntId;

if((es = pBlockTableRecord->appendAcDbEntity(newEntId, pBlkRef)) != Acad::eOk)
{
  acutPrintf("\n something is wrong");
}

//处理新加块的自定义属性值
AcDbBlockTableRecord *pBlockDef;
acdbOpenObject(pBlockDef, blockTelCdId, AcDb::kForWrite);
AcDbBlockTableRecordIterator *pIterator;
pBlockDef->newIterator(pIterator);
AcGePoint3d basePoint;
AcDbEntity *pEnt;
AcDbAttributeDefinition *pAttdef;

for (pIterator->start(); !pIterator->done(); pIterator->step())//将source.dwg中所有的Attibute进行遍历
{
      pIterator->getEntity(pEnt, AcDb::kForRead);
      pAttdef = AcDbAttributeDefinition::cast(pEnt);

  if (pAttdef != NULL && !pAttdef->isConstant())
  {
         AcDbAttribute *pAtt = new AcDbAttribute();
         pAtt->setPropertiesFrom(pAttdef);
         pAtt->setInvisible(pAttdef->isInvisible());
         basePoint = pAttdef->position();
         basePoint += pBlkRef->position().asVector();
         pAtt->setPosition(basePoint);
         pAtt->setHeight(pAttdef->height());
         pAtt->setRotation(pAttdef->rotation());
         pAtt->setTag("Tag");
         pAtt->setFieldLength(25);
         char *pStr = pAttdef->tag();
         pAtt->setTag(pStr);
acutDelString(pStr);
         pAtt->setFieldLength(pAttdef->fieldLength());
         pAtt->setTextString("J001/zg01/003");
         AcDbObjectId attId;
         pBlkRef->appendAttribute(attId, pAtt);
         pAtt->close();
      }
      pEnt->close(); // use pEnt... pAttdef might be NULL
}
delete pIterator;

pBlockDef->close();
pBlockTableRecord->close();
pBlkRef->close();
delete pNewDb;
return Acad::eOk;
}