/// <summary>
/// 更新线的位置
/// </summary>
/// <param name="pList">经纬度列表</param>
/// <returns></returns>
public bool UpdatePosition(List <MapLngLat> pList)
{
IPointCollection pointCollection = base.Geometry as IPointCollection;
if (pointCollection != null)
{
pointCollection.RemovePoints(0, pointCollection.PointCount); // 清空之前的点，再添加新点
for (int i = 0; i < pList.Count; i++)
{
IPoint point = new PointClass();
point.PutCoords(pList[i].Lng, pList[i].Lat);
point.Z = pList[i].Alt;
(point as IZAware).ZAware = true;
pointCollection.AddPoint(point);
}
Dosomething((Action) delegate()
{
int outIndex = -1;
graphcisLayer.FindElementIndex(this, out outIndex);
if (outIndex > 0)
{
base.Geometry = pointCollection as IGeometry;
graphcisLayer.UpdateElementByIndex(outIndex);
}
}, true);
return(true);
}
return(false);
}
/// <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);
}
/// <summary>
/// 更新模型
/// </summary>
/// <param name="_lnglat">坐标</param>
/// <param name="angle">角度</param>
public void UpdateModel(MapLngLat _lnglat, double angle)
{
this.Dosomething((Action) delegate()
{
IPoint point = new PointClass();
point.PutCoords(_lnglat.Lng, _lnglat.Lat);
point.Z = _lnglat.Alt;
(point as IZAware).ZAware = true;
base.Geometry = point;
markerSymbol.Angle = angle;
base.Symbol = markerSymbol;
int outIndex = -1;
graphicLayer.FindElementIndex(this, out outIndex);
if (outIndex > -1)
{
graphicLayer.UpdateElementByIndex(index); // 刷新图元
}
}, true);
this.lngLat = _lnglat;
}
/// <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;
}