ObjectARX2010 學習筆記004：複製多段線點產生新多段線

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static void swtArxProject5plcopy(void)    {        // Add your code for command swtArxProject5.plcopy here        //定義對象名和點        ads_name ename;ads_point pt;        //如果沒有選擇到實體        if(acedEntSel(NULL,ename,pt)!=RTNORM)        {            return;        }        //定義並擷取ID        AcDbObjectId id;        acdbGetObjectId(id,ename);        //定義並擷取實體        AcDbEntity *pEnt;        acdbOpenObject(pEnt,id,AcDb::kForRead);        //定義點集        AcGePoint2dArray pts;        //判斷是否是多段線        if(pEnt->isKindOf(AcDbPolyline::desc()))        {            //如果是，定義多段線            AcDbPolyline *pPline=AcDbPolyline::cast(pEnt);            //點數量            int num=pPline->numVerts();            //在點中迴圈            for (int i=0;i<num;i++)            {                AcGePoint2d pt;                //取得每個點                pPline->getPointAt(i,pt);                //將點加入到點集                pts.append(pt);            }             pPline->close();        }        //關閉實體        pEnt->close();        //建立多段線        CreatePolyline(pts,1.0);    }

AcDbObjectId CreatePolyline(AcGePoint2dArray pts,double width){int numVertex =pts.length();AcDbPolyline *pPoly=new AcDbPolyline(numVertex);for (int i=0;i<numVertex;i++){pPoly->addVertexAt(i,pts.at(i),0,width,width);}AcDbObjectId polyId;pPoly->setColorIndex(1);polyId=PostToModelSpace(pPoly);pPoly->close();return polyId;}