public override void OnMapControlMouseDown(int button, int shift, int x, int y, double mapX, double mapY)
{
base.OnMapControlMouseDown(button, shift, x, y, mapX, mapY);
if (m_mapCtrl != null && button == 1)
{
if (m_identifyResult == null)
{
m_identifyResult = new EsriMapIdentifyResults(m_mapCtrl);
}
if (m_identifyResult != null)
{
IGeometry idGeo = null;
switch (shift)
{
case 0:
idGeo = m_mapCtrl.ToMapPoint(x, y);
double mapLen = Units.ConvertScreenPixelsToMapUnits(m_mapCtrl.ActiveView.ScreenDisplay, 10.0);
idGeo = TopologicalOperator.Buffer(idGeo, mapLen);
break;
case 1:
idGeo = m_mapCtrl.TrackPolygon();
break;
case 2:
idGeo = m_mapCtrl.TrackRectangle();
break;
case 4:
idGeo = m_mapCtrl.TrackCircle();
break;
default:
idGeo = m_mapCtrl.ToMapPoint(x, y);
break;
}
if (idGeo != null & !idGeo.IsEmpty)
{
idGeo.SpatialReference = m_mapCtrl.Map.SpatialReference;
m_identifyResult.DoEsriMapIdentify(idGeo);
}
m_app.AddToInfoPanel(m_identifyResult, "信息查看", true, true, true, true);
}
}
}