AE 中的查找与定位,以城市查找为例

 

在文本框输入一个城市,在地图上查找,当找到后让mapcontrol自动跳转到地图上该点。

IQueryFilter filter = new QueryFilterClass();
filter.WhereClause = " NAME='"+城市名称+"'";
IFeatrueSel.SelectFeatures(filter, esriSelectionResultEnum.esriSelectionResultNew, false);
IFeatureCursor cursor = IFeatureLay.Search(filter, false);
IFeature feat = cursor.NextFeature();
if (feat != null)
{
    //先清除地图中被选中的要素
    this.axMapControl1.Map.ClearSelection();
    IGeometry zdGeo = feat.Shape;
    try
    {
        this.axMapControl1.ActiveView.ExtentStack.Do(zdGeo.Envelope);
        this.axMapControl1.ActiveView.Extent = zdGeo.Envelope;
        this.axMapControl1.ActiveView.Refresh();
        this.axMapControl1.FlashShape(zdGeo, 2, 300, Type.Missing);
    }
    catch (Exception ex)
    {       
        return;
    }
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(cursor);

 

AE中将地图页面跳转到指定坐标点

Mappoint p=new Mappoint();
p.x=已知点X坐标;
p.y=已知点Y坐标;
mapControl1.Extent.CenterAt(p);

 

 

 

 

参考文章

1. arcgis engine 当在文本框输入一个城市,在地图上查找定位

 

posted @ 2016-08-29 10:27  wenglabs  阅读(459)  评论(0编辑  收藏  举报