ARX 多段线的合并

////合成多段线static void AppendPLinePoint(const AcDbObjectId& id,const bool& gotoNext,AcDbPolyline* pLine,int& plIndex){AcDbEntity* pEnt = NULL;Acad::ErrorStatus es = acdbOpenObject(pEnt,id,AcDb::OpenMode::kForRead);if(es != Acad::eOk){acutPrintf(_T("open object failed in combine pline"));return;}if(!pEnt->isKindOf(AcDbPolyline::desc())){pEnt->close();return;}AcDbPolyline* pPoly = NULL;pPoly = (AcDbPolyline*)pEnt;AcGePoint2dArray ptArr;int count = pPoly->numVerts();AcGePoint2d pt ;double bulge = 0.0;if(gotoNext){for(int i = 0;i < count ; i++){pPoly->getPointAt(i,pt);pPoly->getBulgeAt(i,bulge);pLine->addVertexAt(plIndex,pt,bulge);plIndex++;}}else{for(int i = count - 1;i > 0; i--){pPoly->getPointAt(i,pt);if(i > 0){pPoly->getBulgeAt(i - 1,bulge);}else{pPoly->getBulgeAt(0,bulge);}pLine->addVertexAt(plIndex,pt,-bulge);plIndex++;}}pEnt->close();}