PIE SDK 鹰眼图

 1   //下面主要介绍的是鹰眼图和主地图相关事件的代码
 2 PIE.Carto.IPmdContents m_BuddyControl;
 3          /// <summary>
 4         /// 鹰眼图鼠标按下事件
 5         /// </summary>
 6         /// <param name="sender">触发器</param>
 7         /// <param name="e">触发器参数</param>
 8         private void MapHawkEyeControl_MouseDown(object sender, MouseEventArgs e)
 9         {
10             if (e.Button == MouseButtons.Left)
11             {
12                 IPoint point = m_MapHawkEyeControl.ToMapPoint(e.X, e.Y);
13                 m_BuddyControl.ActiveView.PanTo(point);//等价于MapControl.CenterAt(point);
14             }
15             else if (e.Button == System.Windows.Forms.MouseButtons.Right)
16             {
17                 m_DrawElement.Geometry = null;
18                 IEnvelope envelope = m_MapHawkEyeControl.TrackRectangle();
19                 m_BuddyControl.ActiveView.Extent = envelope;
20             }
21             m_BuddyControl.ActiveView.PartialRefresh(ViewDrawPhaseType.ViewAll);
22         }
23         /// <summary>
24         /// 主地图范围发生变化，鹰眼图显示框
25         /// </summary>
26         /// <param name="sender"></param>
27         /// <param name="sizeChanged"></param>
28         /// <param name="newEnvelope">底图范围</param>
29         private void MapHawkEyePmdControl_OnExtentUpdated(object sender, bool sizeChanged, IEnvelope newEnvelope)
30         {
31             if (!m_IsSyn) return;
32             if (m_BuddyControl.ActiveView.FullExtent == null) return;
33             if (m_MapHawkEyeControl.ActiveView.FullExtent == null) return;
34             m_DrawElement.Geometry = newEnvelope as IGeometry;            m_MapHawkEyeControl.ActiveView.PartialRefresh(ViewDrawPhaseType.ViewAll);
35         }