/// <summary>
/// 屏幕坐标转地理坐标
/// </summary>
/// <param name="x">屏幕X</param>
/// <param name="y">屏幕Y</param>
/// <returns></returns>
public MapLngLat SceneToGeographyPoint(int x, int y)
{
double dLat, dLon, dAlt;
IGlobeDisplay pGlobeDisplay = mapControl.GlobeDisplay;
ISceneViewer pViewer = mapControl.GlobeDisplay.ActiveViewer;
IGlobeViewUtil pGlobeViewUtil = mapControl.GlobeCamera as IGlobeViewUtil;
pGlobeViewUtil.WindowToGeographic(pGlobeDisplay, pViewer, x, y, true, out dLon, out dLat, out dAlt);
Core.Model.MapLngLat lnglat = new Core.Model.MapLngLat(dLon, dLat, dAlt);
return(lnglat);
}
private void GetGeographicCoordinates(IGlobe globe, int screenX, int screenY, ref double longitude, ref double latitude, ref double altitudeInKilometers)
{
IGlobeDisplay globeDisplay = globe.GlobeDisplay;
ISceneViewer sceneViewer = globeDisplay.ActiveViewer;
ICamera camera = globeDisplay.ActiveViewer.Camera;
IGlobeViewUtil globeViewUtil = camera as IGlobeViewUtil;
globeViewUtil.WindowToGeographic(globeDisplay, sceneViewer, screenX, screenY, true, out longitude, out latitude, out altitudeInKilometers);
}
/// <summary>
/// Occurs when the user click inside the globe
/// </summary>
/// <param name="Button"></param>
/// <param name="Shift"></param>
/// <param name="X"></param>
/// <param name="Y"></param>
public override void OnMouseDown(int Button, int Shift, int X, int Y)
{
//make sure that the weatherlayer and the featureclass exists
if (null == m_weatherLayer || null == m_featureClass)
{
return;
}
//get the current point (convert the mouse coordinate into geographics coordinate)
double lat, lon, alt;
m_globeViewUtil.WindowToGeographic(m_globeDsp, m_globeDsp.ActiveViewer, X, Y, true, out lon, out lat, out alt);
IPoint point = new PointClass();
((IZAware)point).ZAware = true;
point.PutCoords(lon, lat);
//Set a default elevation of 1000M. Alternatively, the user can get the
//elevation from the globesurface (ISurface)
point.Z = 1000.0;
//create the spatial filter in order to select the relevant zipCode
ISpatialFilter spatialFilter = new SpatialFilterClass();
spatialFilter.Geometry = point as IGeometry;
spatialFilter.GeometryField = m_featureClass.ShapeFieldName;
//The spatial filter supposed to filter all the polygons containing the point
spatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelWithin;
//query the featureclass for the containing features
IFeatureCursor featureCursor = m_featureClass.Search(spatialFilter, true);
IFeature feature = featureCursor.NextFeature();
if (null == feature)
{
return;
}
//get the zip code from the containing feature
long zipCode = Convert.ToInt64(feature.get_Value(feature.Fields.FindField("ZIP")));
//add the weather item to the layer
m_weatherLayer.AddItem(zipCode, lat, lon);
//release the featurecursor
Marshal.ReleaseComObject(featureCursor);
}
protected override void OnMouseDown(ESRI.ArcGIS.Desktop.AddIns.Tool.MouseEventArgs arg)
{
m_bDrawPoint = true;
//move the light-source according to the mouse coordinate
double lat, lon, alt;
lat = lon = alt = 0;
m_globeViewUtil.WindowToGeographic(m_globeDisplay, m_sceneViewer, arg.X, arg.Y, false, out lon, out lat, out alt);
m_globeDisplayRendering.SetSunPosition(lat, lon);
//Refresh the display so that the AfterDraw will get called
m_sceneViewer.Redraw(false);
}
/// <summary>
/// Mouse move event handler
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void axGlobeControl1_OnMouseMove(object sender, IGlobeControlEvents_OnMouseMoveEvent e)
{
double dLon, dLat, dAlt;
//convert the window coordinate into geographic coordinates
m_globeViewUtil.WindowToGeographic(m_globeControl.GlobeDisplay,
m_globeControl.GlobeDisplay.ActiveViewer,
e.x,
e.y,
true,
out dLon,
out dLat,
out dAlt);
//report the mouse geographic coordinate onto the statusbar
statusBarXY.Text = string.Format("{0} {1} {2}", dLon.ToString("###.###"), dLat.ToString("###.###"), dAlt.ToString("###.###"));
}
