ARX自定义Point实体时如何设置捕捉点及重载移动？

革天明

自定义point实体（YTMPointer : public AcDbPoint）使用了下面个参数，中心点和半径，通过AcDbHatch实现不同大小的点（效果如下图，后续可能会扩展成支持原有point的各个样式）

YTMPointer (const AcGePoint3d &pt,const double radious) ;


以张帆老师的三角形自定义为例仿写时，发现设置捕捉点、夹点、移动时我不能类比的写出，请各位指点一下如何实现自定义点实体。

革天明

Adesk::Boolean YTMPointer::subWorldDraw (AcGiWorldDraw *mode) {
        assertReadEnabled () ;
        //return (AcDbPoint::subWorldDraw (mode)) ;
        //mode->geometry().circle(m_center,m_radious,AcGeVector3d(0,0,1));
        AcDbHatch *pHatch=PutHatch();
        pHatch->worldDraw(mode);
        if(pHatch!=NULL)
        {
                delete pHatch;
        }       
        return Adesk::kTrue;
}

AcDbHatch *YTMPointer::PutHatch()const
{
        AcDbHatch *pHatch=new AcDbHatch();
        pHatch->setPattern(AcDbHatch::kPreDefined, _T("SOLID"));
        AcGePoint2d cenPt(m_center.x,m_center.y);
        double TWOPI = 2.0 * 3.1415926535897932;
        AcGeCircArc2d *cirArc = new AcGeCircArc2d();
        cirArc->setCenter(cenPt);
        cirArc->setRadius(m_radious);
        cirArc->setAngles(0.0, TWOPI);

        // Append an internal circular loop to hatch boundary
        //
        AcGeIntArray edgeTypes;
        AcGeVoidPointerArray edgePtrs;
        edgeTypes.append(AcDbHatch::kCirArc);
        edgePtrs.append((void*)cirArc);
        pHatch->appendLoop(AcDbHatch::kDefault, edgePtrs, edgeTypes);

        // Elaborate solid fill
        //
        pHatch->evaluateHatch();

        return pHatch;
}

longer1000

啥也不说了，感谢楼主分享哇！

st788796

重载的函数很多，你这个不止是Point了，还有Hatch