public void SelectByPolygons(IFeatureLayer selectedItem)
{
IFeatureLayer baseLayer = selectedItem;
IFeatureLayer selectLayer = null;
foreach (ILayer layer in _map.MapFrame.DrawingLayers)
{
if (layer.LegendText == "Polygon")
{
selectLayer = layer as IFeatureLayer;
break;
}
}
List <int> resultIndices = null;
if (selectLayer != null)
{
resultIndices = FeatureSetQuery.SpatialFilter(baseLayer.DataSet, selectLayer.DataSet);
//resultIndices = OgrQuery.OgrSpatialFilter(baseLayer.DataSet, selectLayer.DataSet);
}
if (resultIndices != null)
{
baseLayer.UnSelectAll();
baseLayer.Select(resultIndices);
_map.Refresh();
}
}
//作为委托传入到DrawPolygon操作中
public void SelectByPolygon(IFeatureLayer drawedLayer)
{
ILegendItem selectedItem = (GIS.FrameWork.Application.App.Legend as GIS.Common.Dialogs.Legend).SelectedLegendMenuItem;
if (selectedItem != null && selectedItem is IFeatureLayer)
{
IFeatureLayer baseLayer = selectedItem as IFeatureLayer;
IFeatureLayer selectLayer = drawedLayer;
List <int> resultIndices = null;
if (selectLayer != null)
{
resultIndices = FeatureSetQuery.SpatialFilter(baseLayer.DataSet, selectLayer.DataSet);
//resultIndices = OgrQuery.OgrSpatialFilter(baseLayer.DataSet, selectLayer.DataSet);
}
if (resultIndices != null)
{
baseLayer.UnSelectAll();
baseLayer.Select(resultIndices);
_map.Refresh();
}
}
}