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各位::
给看看这段代码为什么有时候能正确运行。有时候会出错误?CAD over
AcDbEntity *pEnt;
AcDbDatabase *pCurDb=NULL;
AcDbObjectId objId,offeld;
acdbGetObjectId(objId,en);
acdbOpenAcDbEntity(pEnt,objId,AcDb::kForWrite);
AcDbVoidPtrArray ptArr;
AcDbPolyline *pCir;
pCir = (AcDbPolyline *)pEnt;
AcGePlane plane;
AcDb::Planarity flag;
pCir->getPlane(plane,flag);
AcGeVector3d nor = pCir->normal();
AcDbVoidPtrArray entitySet;
pCir->explode(entitySet);
pCir->close();
pCurDb = acdbHostApplicationServices()->workingDatabase();
AcDbBlockTableRecord *pBlkTableRecord;
AcDbBlockTable *pBlkTable;
pCurDb->getBlockTable(pBlkTable, AcDb::kForRead);
pBlkTable->getAt(ACDB_MODEL_SPACE, pBlkTableRecord, AcDb::kForWrite);
pBlkTable->close();
for(int i = 0;i < entitySet.length();i++)
{
AcDbVoidPtrArray ptArr;
AcDbCurve *pCur = (AcDbCurve *)entitySet.at(i);
pCur->getOffsetCurves(offVal,ptArr);
pCur->close();
AcDbCurve *pRes = (AcDbCurve *)ptArr.at(0);
pBlkTableRecord->appendAcDbEntity(offeld, pRes);
pRes->setLayer(offsetname);
pRes->close();
}
pBlkTableRecord->close();
pEnt->close(); |
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