void Additional_Class::Change_Line( AcDbObjectId LineID, AcGeVector3d deltaVec ) { AcDbEntity *pEnt_Temp; if (acdbOpenAcDbEntity(pEnt_Temp, LineID, AcDb::kForWrite)!= Acad::eOk) { acutPrintf(_T("\nOPEN ENTITY ERROR")); return; } if (!pEnt_Temp->isKindOf(AcDbLine::desc())) { acutPrintf(_T("\nENTITY IS NOT LINE")); return; } AcDbLine *pLineChange; pLineChange = AcDbLine::cast(pEnt_Temp); AcGePoint3d ptLineS, ptLineE; Acad::ErrorStatus es = pLineChange->getStartPoint(ptLineS); es = pLineChange->getStartPoint(ptLineE); pLineChange->setStartPoint(ptLineS+deltaVec); pLineChange->setEndPoint(ptLineE + deltaVec); pEnt_Temp->close(); pLineChange->close(); return; }