private void mapControl_OnMouseMove(object sender, IMapControlEvents2_OnMouseMoveEvent e)
{
if (eventInited == 1)
{
ICommand command = mapControl.CurrentTool as ICommand;
if (command != null && command.Name == "ControlToolsMapNavigation_Pan")
{
//更新标牌
IPoint targetPoint = base.Geometry as IPoint;
Core.Model.MapLngLat startPoint = new Core.Model.MapLngLat(targetPoint.X, targetPoint.Y);
int x = -1;
int y = -1;
mapControl.FromMapPoint(targetPoint, ref x, ref y);
mapLabel.UpdateLabelLocation(new System.Drawing.Point(x, y));
//更新线
IPoint labelPoint = mapControl.ToMapPoint(mapLabel.Location.X, mapLabel.Location.Y);
Core.Model.MapLngLat endPoint = new Core.Model.MapLngLat(labelPoint.X, labelPoint.Y);
MapFrame.Core.Interface.IMFElement element = BelongLayer.GetElement("标牌线");
if (element == null)
{
return;
}
IMFLine lineElement = element as IMFLine;
List <Core.Model.MapLngLat> lnglatList = new List <Core.Model.MapLngLat>();
lnglatList.Add(startPoint);
lnglatList.Add(endPoint);
lineElement.UpdatePosition(lnglatList);
}
}
}
/// <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 = 0, y = 0;
IPoint p = new PointClass();
p.PutCoords(lon, lat);
mapControl.FromMapPoint(p, ref x, ref y);
System.Drawing.Point point = new System.Drawing.Point(x, y);
return(point);
}
/// <summary>
/// 初始化标牌
/// </summary>
private void InitLable()
{
IPoint point = base.Geometry as IPoint;
mapControl = BelongLayer.MapControl as AxMapControl;
mapControl.Update();
mapControl.OnMouseDown += mapControl_OnMouseDown;
int x = -1;
int y = -1;
mapControl.FromMapPoint(point, ref x, ref y);
System.Drawing.Point targetPoint = new System.Drawing.Point(x, y);
mapLabel = new Windows.MapLabel(targetPoint);
mapLabel.Move += new EventHandler(mapLabel_Move);
mapLabel.Location = mapLabel.LabelLocation;
IPoint labelLocation = mapControl.ToMapPoint(mapLabel.Location.X, mapLabel.Location.Y);
Dosomething((Action)(delegate
{
mapControl.Controls.Add(mapLabel);
}), true);
//画线
MapFrame.Core.Model.Kml kml = new MapFrame.Core.Model.Kml();
kml.Placemark.Name = "标牌线";
MapFrame.Core.Model.KmlLineString line = new MapFrame.Core.Model.KmlLineString();
List <MapFrame.Core.Model.MapLngLat> pointList = new List <MapFrame.Core.Model.MapLngLat>();
pointList.Add(new MapFrame.Core.Model.MapLngLat(point.X, point.Y));
pointList.Add(new MapFrame.Core.Model.MapLngLat(labelLocation.X, labelLocation.Y));
line.PositionList = pointList;
line.Color = Color.Black;
line.Width = 2;
kml.Placemark.Graph = line;
BelongLayer.AddElement(kml);
}
