/// <summary>
/// Form Load event handler
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MainForm_Load(object sender, EventArgs e)
{
m_globeControl = axGlobeControl1.Object as IGlobeControl;
//cast the GlobeViewUtil from the GlobeCamera
m_globeViewUtil = m_globeControl.GlobeCamera as IGlobeViewUtil;
}
/// <summary>
/// Occurs when this command is created
/// </summary>
/// <param name="hook">Instance of the application</param>
public override void OnCreate(object hook)
{
//Instantiate the hook helper
if (null == m_globeHookHelper)
{
m_globeHookHelper = new GlobeHookHelperClass();
}
//set the hook
m_globeHookHelper.Hook = hook;
//get the relevant members
IGlobe globe = m_globeHookHelper.Globe;
m_scene = globe as IScene;
m_globeDsp = m_globeHookHelper.GlobeDisplay;
m_globeViewUtil = m_globeHookHelper.Camera as IGlobeViewUtil;
//connect to the ZipCodes featureclass
//get the ArcGIS path from the registry
String versionNumber = RuntimeManager.ActiveRuntime.Version;
RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\ESRI\ArcObjectsSdk" + versionNumber);
string path = Convert.ToString(key.GetValue("InstallDir"));
path = System.IO.Path.Combine(path, @"Samples\data\USZipCodeData");
IWorkspaceFactory wf = new ShapefileWorkspaceFactoryClass() as IWorkspaceFactory;
IWorkspace ws = wf.OpenFromFile(path, 0);
IFeatureWorkspace fw = ws as IFeatureWorkspace;
m_featureClass = fw.OpenFeatureClass("US_ZipCodes");
}
/// <summary>
/// Occurs when this command is created
/// </summary>
/// <param name="hook">Instance of the application</param>
public override void OnCreate(object hook)
{
//Instantiate the hook helper
if (null == m_globeHookHelper)
{
m_globeHookHelper = new GlobeHookHelperClass();
}
//set the hook
m_globeHookHelper.Hook = hook;
//get the relevant members
IGlobe globe = m_globeHookHelper.Globe;
m_scene = globe as IScene;
m_globeDsp = m_globeHookHelper.GlobeDisplay;
m_globeViewUtil = m_globeHookHelper.Camera as IGlobeViewUtil;
//connect to the ZipCodes featureclass
string path = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
path = System.IO.Path.Combine(path, @"ArcGIS\data\USZipCodeData");
if (!Directory.Exists(path))
{
throw new Exception(string.Format("Fix code to point to your sample data: {0} was not found", path));
}
IWorkspaceFactory wf = new ShapefileWorkspaceFactoryClass() as IWorkspaceFactory;
IWorkspace ws = wf.OpenFromFile(path, 0);
IFeatureWorkspace fw = ws as IFeatureWorkspace;
m_featureClass = fw.OpenFeatureClass("US_ZipCodes");
}
private void globeControl_OnMouseMove(object sender, IGlobeControlEvents_OnMouseMoveEvent e)
{
//get scale range in Kilometers
IGlobeViewUtil globeCamera = globeControl.GlobeCamera as IGlobeViewUtil;
double distanceInKM = globeCamera.ScalingDistance / 1000;
Coordinates.Text = string.Format("{0} {1} {2}", "Distance: ", distanceInKM.ToString("######.##"), globeControl.Globe.GlobeUnits.ToString().Substring(4));
}
/// <summary>
/// 地理坐标转化为屏幕坐标
/// </summary>
/// <param name="lon">经度</param>
/// <param name="lat">纬度</param>
/// <param name="alt">高度</param>
/// <returns></returns>
public System.Drawing.Point GeographyToScenePoint(double lon, double lat, double alt = 0)
{
int x, y;
IGlobeViewUtil globeViewUtil = mapControl.GlobeCamera as IGlobeViewUtil;
IGlobeDisplay pGlobeDisplay = mapControl.GlobeDisplay;
globeViewUtil.GeocentricToWindow(lon, lat, alt, out x, out y);
System.Drawing.Point point = new System.Drawing.Point(x, y);
return(point);
}
public SunPositionTool()
{
//get the different members
m_globe = ArcGlobe.Globe;
m_globeDisplay = m_globe.GlobeDisplay as IGlobeDisplay3;
m_globeDisplayRendering = m_globeDisplay as IGlobeDisplayRendering;
m_globeCamera = m_globeDisplay.ActiveViewer.Camera as IGlobeCamera;
m_globeViewUtil = m_globeCamera as IGlobeViewUtil;
m_sceneViewer = m_globeDisplay.ActiveViewer;
}
public SunPositionTool()
{
//get the different members
m_globe = ArcGlobe.Globe;
m_globeDisplay = m_globe.GlobeDisplay as IGlobeDisplay3;
m_globeDisplayRendering = m_globeDisplay as IGlobeDisplayRendering;
m_globeCamera = m_globeDisplay.ActiveViewer.Camera as IGlobeCamera;
m_globeViewUtil = m_globeCamera as IGlobeViewUtil;
m_sceneViewer = m_globeDisplay.ActiveViewer;
}
/// <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);
}
private void Form1_Load(object sender, EventArgs e)
{
m_Globe = axGlobeControl1.Globe;
m_GlobeDisplay = m_Globe.GlobeDisplay;
m_SceneView = m_GlobeDisplay.ActiveViewer;
m_GlobeViewUtil = axGlobeControl1.GlobeCamera as IGlobeViewUtil;
IGlobeDisplayEvents_Event m_GlobeDisplayEvents = axGlobeControl1.Globe.GlobeDisplay as IGlobeDisplayEvents_Event;
//将三维视图重绘事件委托给m_GlobeDisplayEvents_AfterDraw方法
m_GlobeDisplayEvents.AfterDraw += new IGlobeDisplayEvents_AfterDrawEventHandler(m_GlobeDisplayEvents_AfterDraw);
axMapControl1.Extent = axMapControl1.FullExtent;
comboBox1.SelectedIndex = 0;
}
//获得三维视图的显示范围，并在二维地图上显示
private void GlobeControl_DisplayEvents_AfterDraw(ISceneViewer pViewer)
{
IEnvelope m_MapExtent = new EnvelopeClass();
IGlobeViewUtil m_GlobeViewUtil = axGlobeControl1.GlobeCamera as IGlobeViewUtil;
m_GlobeViewUtil.QueryVisibleGeographicExtent(m_MapExtent);
IGraphicsContainer pGra = axMapControl1.Map as IGraphicsContainer;
IActiveView pAv = pGra as IActiveView;
pGra.DeleteAllElements();
IRectangleElement rec = new RectangleElementClass();
IElement ele = rec as IElement;
ele.Geometry = m_MapExtent;
IRgbColor pColor = new RgbColorClass();
pColor.Red = 255;
pColor.Green = 0;
pColor.Blue = 0;
ILineSymbol line = new SimpleLineSymbolClass();
line.Color = pColor;
line.Width = 2;
pColor = new RgbColorClass();
pColor.Red = 255;
pColor.Green = 0;
pColor.Blue = 0;
pColor.Transparency = 0;
IFillSymbol fill = new SimpleFillSymbolClass();
fill.Outline = line;
fill.Color = pColor;
IFillShapeElement pFillElement = ele as IFillShapeElement;
pFillElement.Symbol = fill;
pGra.AddElement((IElement)pFillElement, 0);
pAv.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
}
/// <summary>
/// Occurs when this command is created
/// </summary>
/// <param name="hook">Instance of the application</param>
public override void OnCreate(object hook)
{
//Instantiate the hook helper
if (null == m_globeHookHelper)
m_globeHookHelper = new GlobeHookHelperClass();
//set the hook
m_globeHookHelper.Hook = hook;
//get the relevant members
IGlobe globe = m_globeHookHelper.Globe;
m_scene = globe as IScene;
m_globeDsp = m_globeHookHelper.GlobeDisplay;
m_globeViewUtil = m_globeHookHelper.Camera as IGlobeViewUtil;
//connect to the ZipCodes featureclass
//get the ArcGIS path from the registry
String versionNumber = RuntimeManager.ActiveRuntime.Version;
RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\ESRI\ArcObjectsSdk" + versionNumber);
string path = Convert.ToString(key.GetValue("InstallDir"));
path = System.IO.Path.Combine(path, @"Samples\data\USZipCodeData");
IWorkspaceFactory wf = new ShapefileWorkspaceFactoryClass() as IWorkspaceFactory;
IWorkspace ws = wf.OpenFromFile(path, 0);
IFeatureWorkspace fw = ws as IFeatureWorkspace;
m_featureClass = fw.OpenFeatureClass("US_ZipCodes");
}
/// <summary>
/// This is where the actual drawing takes place.
/// </summary>
/// <param name="pGlobeViewer"></param>
public override void DrawImmediate(IGlobeViewer pGlobeViewer)
{
//make sure that the layer is valid, visible and that the main table exists
if (!m_bVisible || !m_bValid | null == m_table)
return;
//get the OpenGL rendering mode
uint mode;
unsafe
{
int m;
GL.glGetIntegerv(GL.GL_RENDER_MODE, &m);
mode = (uint)m;
//GL.glGetIntegerv(GL.GL_RENDER_MODE, out mode);
}
//get the OpenGL matrices (required for the viewport filtering and the billboard orientation)
GL.glGetDoublev(GL.GL_MODELVIEW_MATRIX, m_modelViewMatrix);
GL.glGetIntegerv(GL.GL_VIEWPORT, m_viewport);
GL.glGetDoublev(GL.GL_PROJECTION_MATRIX, m_projMatrix);
//populate the billboard matrix
m_billboardMatrix[0] = m_modelViewMatrix[0];
m_billboardMatrix[1] = m_modelViewMatrix[4];
m_billboardMatrix[2] = m_modelViewMatrix[8];
m_billboardMatrix[3] = 0;
m_billboardMatrix[4] = m_modelViewMatrix[1];
m_billboardMatrix[5] = m_modelViewMatrix[5];
m_billboardMatrix[6] = m_modelViewMatrix[9];
m_billboardMatrix[7] = 0;
m_billboardMatrix[8] = m_modelViewMatrix[2];
m_billboardMatrix[9] = m_modelViewMatrix[6];
m_billboardMatrix[10] = m_modelViewMatrix[10];
m_billboardMatrix[11] = 0;
m_billboardMatrix[12] = 0;
m_billboardMatrix[13] = 0;
m_billboardMatrix[14] = 0;
m_billboardMatrix[15] = 1;
ISceneViewer sceneViewer = pGlobeViewer.GlobeDisplay.ActiveViewer;
//only once, create display lists and do initializations
if (!m_bDisplayListCreated)
{
CreateDisplayLists();
m_globeDisplay = pGlobeViewer.GlobeDisplay;
}
//get the globeViewUtil which allow to convert between the different globe coordinate systems
m_globeViewUtil = sceneViewer.Camera as IGlobeViewUtil;
IGlobeViewUtil globeViewUtil = sceneViewer.Camera as IGlobeViewUtil;
IGlobeAdvancedOptions advOpt = m_globeDisplay.AdvancedOptions;
//the ClipNear value is required for the viewport filtering (since we don't
//want to draw an item which is beyond the clipping planes).
double clipNear = advOpt.ClipNear;
double dblObsX, dblObsY, dblObsZ, dMagnitude;
ICamera camera = pGlobeViewer.GlobeDisplay.ActiveViewer.Camera;
//query the camera location in geocentric coordinate (OpenGL coord system)
camera.Observer.QueryCoords(out dblObsX, out dblObsY);
dblObsZ = camera.Observer.Z;
double lat, lon, X = 0.0, Y = 0.0, Z = 0.0;
//iterate through all the records of the layer, test whether the item is within the
//viewport are and draw it onto the globe.
foreach (DataRow rec in m_table.Rows)
{
lat = Convert.ToDouble(rec[3]);
lon = Convert.ToDouble(rec[4]);
X = Convert.ToDouble(rec[5]);
Y = Convert.ToDouble(rec[6]);
Z = Convert.ToDouble(rec[7]);
#region get the OGL geocentric coordinates X,Y,Z
if (X == 0.0 && Y == 0.0 && Z == 0.0)
{
//calculate the geocentric coordinates
globeViewUtil.GeographicToGeocentric(lon, lat, 1000.0, out X, out Y, out Z);
//write the calculated geocentric coordinate to the table
lock (m_table)
{
rec[5] = X;
rec[6] = Y;
rec[7] = Z;
rec.AcceptChanges();
}
}
#endregion
//make sure that the item is inside the viewport, otherwise no need to draw it
if (!InsideViewport(X, Y, Z, clipNear, mode))
continue;
//get the distance from the camera to the drawn item.
//This distance will determine whether to draw the item as a dot or as
//a full icon.
m_vector3D.SetComponents(dblObsX - X, dblObsY - Y, dblObsZ - Z);
dMagnitude = m_vector3D.Magnitude;
//call the drawing method
DrawItem(rec, dMagnitude);
}
}
