回答(1)
huigezrx 19级 2014-09-24 21:20:13
CAT3DCustomRep继承自CAT3DRep，CAT3DCustomRep类用来管理拥有不同图形属性的图元集合，该类的典型方法是AddGp，该方法的原型及API说明如下：
public virtual void AddGP( CATGraphicPrimitive* iGraphicPrimitive, const CATGraphicAttributeSet& iGraphicAttribut) Adds a graphic primitive to the list of managed graphic primitives. Parameters: iGraphicPrimitive Do not delete this graphic primitive. iGraphicAttribut The graphic attributes of iGraphicPrimitive. |
CAT3DBagRep也继承自CAT3DRep，但是它用来创建展示对象(representations)的集合，可以将CAT3DCustomRep类的实例通过CAT3DBagRep类的成员方法AddCHild将其添加到CAT3DBagRep对应的实例中，AddChild方法的原型即API说明如下：
public virtual HRESULT AddChild( CATRep& iRep) Adds a child representation to the bag. Parameters: iRep Child representation to be added. |