摘要：
这两个功能，和全图一样简单，也是继承CommandBase基类 public override void OnClick() { //Get IEnvelope interface IEnvelope pEnvelope = (IEnvelope)m_pActiveView.FullExtent; //Expand envelope and refresh the view pEnvelope.Expand(0.75, 0.75, true); m_pActiveView.Extent = pEnvelope; m_pActiveView.Refresh(); } pEnvelope 是当前的 阅读全文
