ObjectARX2010 学习笔记005：根据点集生成多段线

AcDbObjectId CPolylineUtil::Add(const AcGePoint2dArray &points,double width/* =0 */)
{
    //点数量
    int numVertices=points.length();
    //定义多段线
    AcDbPolyline *pPoly =new AcDbPolyline(numVertices);
    //将每个顶点添加到多段线中
    for (int i=0;i<numVertices;i++)
    {
        //index,point,0:直线,1:半圆，>1:优弧,0~1:劣弧
        pPoly->addVertexAt(i,points.at(i),0,width,width);
    }
    //定义多段线ID
    AcDbObjectId polyId;
    //将多段线添加到模型空间
    polyId = CDwgDatabaseUtil::PostToModelSpace(pPoly);
    //返回多段线ID
    return polyId;
}
AcDbObjectId CPolylineUtil::Add(const AcGePoint2d &ptStart,const AcGePoint2d &ptEnd,double width)
{
    AcGePoint2dArray points;
    points.append(ptStart);
    points.append(ptEnd);

    return Add(points,width);
}