AE中如何将面状地物转化为点状地物

<P>求教</P>
<P>AE中如何将面状要素转化为点状要素，并将面状要素所有属性赋给点状要素</P>

<P>arctoolbox里有工具Feature Vertices To Points (Data Management)</P>
<P>也可以利用ae的接口来获取到polygon上的节点来转换成点;用 ipointcollection 得到vertices.然后把 feature的shape 等于ipointcollection 变量.在pointcollection里你可以得到poygon的所有节点</P>
<P>dim pPointColl as iPointcollection<BR>pPointcoll=new polygon<BR>dim pfeat as ifeature<BR>'get the feature.......... then assign it<BR>pPointColl =pfeat.shape</P>

那么如何将点状地物转化为面状地物呢？？？？