public static void OnGpsPositionUpdated(esriGpsPositionInfo position)
{
if (GpsPositionUpdated != null)
{
GpsPositionUpdated(position);
}
}
private static void m_RealTimeFeedEvents_Event_PositionUpdated(ref esriGpsPositionInfo position, bool estimate)
{
CurrentGpsPositionInfoIsValid = true;
CurrentGpsPositionInfo = position;
IPoint p = new PointClass();
if (m_CurrentPosition == null)
{
m_CurrentPosition = new PointClass();
m_CurrentPosition.SpatialReference = m_RealTimeFeedManager.RealTimeFeed.SpatialReference;
}
m_CurrentPosition.PutCoords(position.longitude, position.latitude);
p.PutCoords(position.longitude, position.latitude);
p.SpatialReference = m_RealTimeFeedManager.RealTimeFeed.SpatialReference;
if ((m_RealTimeFeedManager.Map != null) && (m_RealTimeFeedManager as IGpsDisplayProperties).AutoPan)
{
IActiveView map = m_RealTimeFeedManager.Map as IActiveView;
if (
!((p.SpatialReference is IUnknownCoordinateSystem) ||
(m_RealTimeFeedManager.Map.SpatialReference is IUnknownCoordinateSystem)))
{
p.Project(m_RealTimeFeedManager.Map.SpatialReference);
}
IEnvelope extent = map.Extent;
extent.CenterAt(p);
map.Extent = extent;
map.Refresh();
}
OnGpsPositionUpdated(position);
}
/// <summary>
/// The real-time feed position updated event handler
/// </summary>
/// <param name="position">a GPS position information</param>
/// <param name="estimate">indicates whether this is an estimated time or real time</param>
void OnPositionUpdated(ref esriGpsPositionInfo position, bool estimate)
{
try
{
//add the tracking element to the tracking graphics layer (should happen only once)
if (-1 == m_trackObjectIndex)
{
int index = AddTrackElement(m_globeGraphicsLayer, position);
if (-1 == index)
{
throw new Exception("could not add tracking object");
}
//cache the element's index
m_trackObjectIndex = index;
return;
}
//get the element by its index
IElement elem = ((IGraphicsContainer3D)m_globeGraphicsLayer).get_Element(m_trackObjectIndex);
//keep the previous location
double lat, lon, alt;
((IPoint)elem.Geometry).QueryCoords(out lon, out lat);
alt = ((IPoint)elem.Geometry).Z;
//update the element's position
IPoint point = elem.Geometry as IPoint;
point.X = position.longitude;
point.Y = position.latitude;
point.Z = alt;
elem.Geometry = (IGeometry)point;
//update the element in the graphics layer.
lock (m_globeGraphicsLayer)
{
m_globeGraphicsLayer.UpdateElementByIndex(m_trackObjectIndex);
}
IGlobeCamera globeCamera = m_sceneViwer.Camera as IGlobeCamera;
//set the camera position in order to track the element
if (m_bTrackAboveTarget)
{
TrackAboveTarget(globeCamera, point);
}
else
{
TrackFollowTarget(globeCamera, point.X, point.Y, point.Z, lon, lat, alt);
}
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(ex.Message);
}
}
/// <summary>
/// Adds a sphere element to the given graphics layer at the specified position
/// </summary>
/// <param name="globeGraphicsLayer"></param>
/// <param name="position"></param>
/// <returns></returns>
private int AddTrackElement(IGlobeGraphicsLayer globeGraphicsLayer, esriGpsPositionInfo position)
{
if (null == globeGraphicsLayer)
{
return(-1);
}
//create a new point at the given position
IPoint point = new PointClass();
((IZAware)point).ZAware = true;
point.X = position.longitude;
point.Y = position.latitude;
point.Z = 0.0;
//set the color for the element (red)
IRgbColor color = new RgbColorClass();
color.Red = 255;
color.Green = 0;
color.Blue = 0;
//create a new 3D marker symbol
IMarkerSymbol markerSymbol = new SimpleMarker3DSymbolClass();
//set the marker symbol's style and resolution
((ISimpleMarker3DSymbol)markerSymbol).Style = esriSimple3DMarkerStyle.esriS3DMSSphere;
((ISimpleMarker3DSymbol)markerSymbol).ResolutionQuality = 1.0;
//set the symbol's size and color
markerSymbol.Size = 700;
markerSymbol.Color = color as IColor;
//crate the graphic element
IElement trackElement = new MarkerElementClass();
//set the element's symbol and geometry (location and shape)
((IMarkerElement)trackElement).Symbol = markerSymbol;
trackElement.Geometry = point as IPoint;
//add the element to the graphics layer
int elemIndex = 0;
((IGraphicsContainer)globeGraphicsLayer).AddElement(trackElement, 0);
//get the element's index
globeGraphicsLayer.FindElementIndex(trackElement, out elemIndex);
return(elemIndex);
}
private void GPSManager_GpsPositionUpdated(esriGpsPositionInfo position)
{
if (position.satellitesInUseValid == 1)
{
this.lblInuseStateCount.Text = position.satellitesInUse.ToString();
}
else
{
this.lblInuseStateCount.Text = "N/A";
}
this.lblLat.Text = position.latitude.ToString("0.###");
this.lblLong.Text = position.longitude.ToString("0.###");
if (position.altitudeValid == 1)
{
this.lblAlti.Text = position.altitude.ToString("0.###");
}
else
{
this.lblAlti.Text = "N/A";
}
}
void TrackDynamicObject_PositionUpdated(ref esriGpsPositionInfo position, bool estimate)
{
}
void TrackDynamicObject_PositionUpdated(ref esriGpsPositionInfo position, bool estimate)
{
}
/// <summary>
/// The real-time feed position updated event handler
/// </summary>
/// <param name="position">a GPS position information</param>
/// <param name="estimate">indicates whether this is an estimated time or real time</param>
void OnPositionUpdated(ref esriGpsPositionInfo position, bool estimate)
{
try
{
//add the tracking element to the tracking graphics layer (should happen only once)
if (-1 == m_trackObjectIndex)
{
int index = AddTrackElement(m_globeGraphicsLayer, position);
if (-1 == index)
throw new Exception("could not add tracking object");
//cache the element's index
m_trackObjectIndex = index;
return;
}
//get the element by its index
IElement elem = ((IGraphicsContainer3D)m_globeGraphicsLayer).get_Element(m_trackObjectIndex);
//keep the previous location
double lat, lon, alt;
((IPoint)elem.Geometry).QueryCoords(out lon, out lat);
alt = ((IPoint)elem.Geometry).Z;
//update the element's position
IPoint point = elem.Geometry as IPoint;
point.X = position.longitude;
point.Y = position.latitude;
point.Z = alt;
elem.Geometry = (IGeometry)point;
//update the element in the graphics layer.
lock (m_globeGraphicsLayer)
{
m_globeGraphicsLayer.UpdateElementByIndex(m_trackObjectIndex);
}
IGlobeCamera globeCamera = m_sceneViwer.Camera as IGlobeCamera;
//set the camera position in order to track the element
if (m_bTrackAboveTarget)
TrackAboveTarget(globeCamera, point);
else
TrackFollowTarget(globeCamera, point.X, point.Y, point.Z, lon, lat, alt);
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(ex.Message);
}
}
/// <summary>
/// Adds a sphere element to the given graphics layer at the specified position
/// </summary>
/// <param name="globeGraphicsLayer"></param>
/// <param name="position"></param>
/// <returns></returns>
private int AddTrackElement(IGlobeGraphicsLayer globeGraphicsLayer, esriGpsPositionInfo position)
{
if (null == globeGraphicsLayer)
return -1;
//create a new point at the given position
IPoint point = new PointClass();
((IZAware)point).ZAware = true;
point.X = position.longitude;
point.Y = position.latitude;
point.Z = 0.0;
//set the color for the element (red)
IRgbColor color = new RgbColorClass();
color.Red = 255;
color.Green = 0;
color.Blue = 0;
//create a new 3D marker symbol
IMarkerSymbol markerSymbol = new SimpleMarker3DSymbolClass();
//set the marker symbol's style and resolution
((ISimpleMarker3DSymbol)markerSymbol).Style = esriSimple3DMarkerStyle.esriS3DMSSphere;
((ISimpleMarker3DSymbol)markerSymbol).ResolutionQuality = 1.0;
//set the symbol's size and color
markerSymbol.Size = 700;
markerSymbol.Color = color as IColor;
//crate the graphic element
IElement trackElement = new MarkerElementClass();
//set the element's symbol and geometry (location and shape)
((IMarkerElement)trackElement).Symbol = markerSymbol;
trackElement.Geometry = point as IPoint;
//add the element to the graphics layer
int elemIndex = 0;
((IGraphicsContainer)globeGraphicsLayer).AddElement(trackElement, 0);
//get the element's index
globeGraphicsLayer.FindElementIndex(trackElement, out elemIndex);
return elemIndex;
}
