/// <summary>
/// Called when the mouse button is pressed down. Records the
/// mouse position, to be used to move map center when the
/// mouse button is released.
/// </summary>
/// <param name="sender">Sender object.</param>
/// <param name="args">Event data.</param>
private void OnButtonPress(object sender, ButtonPressEventArgs args)
{
try
{
isDragging = true;
CartesianToGeoCoords(args.Event.X, args.Event.Y, out double lat, out double lon);
mouseAtDragStart = new Map.Coordinate(lat, lon);
}
catch (Exception err)
{
ShowError(err);
}
}
/// <summary>
/// Show the given markers on the map and set the center/zoom level.
/// </summary>
/// <param name="coordinates">Coordinates of the markers.</param>
/// <param name="locNames">Names of the marekrs (unused currently).</param>
/// <param name="zoom">Zoom level of the map.</param>
/// <param name="center">Location of the center of the map.</param>
public void ShowMap(List <Map.Coordinate> coordinates, List <string> locNames, double zoom, Map.Coordinate center)
{
if (map != null)
{
map.Dispose();
}
map = InitMap();
GeometryFactory gf = new GeometryFactory(new PrecisionModel(), 3857);
List <IGeometry> locations = coordinates.Select(c => gf.CreatePoint(new Coordinate(c.Longitude, c.Latitude))).ToList <IGeometry>();
VectorLayer markerLayer = new VectorLayer("Markers");
markerLayer.Style.Symbol = GetResourceImage("ApsimNG.Resources.Marker.png");
markerLayer.DataSource = new GeometryProvider(locations);
map.Layers.Add(markerLayer);
map.Zoom = zoom;
map.Center = new Coordinate(center.Longitude, center.Latitude);
if (image.Allocation.Width > 1 && image.Allocation.Height > 1)
{
RefreshMap();
}
}
/// <summary>
/// Show the given markers on the map and set the center/zoom level.
/// </summary>
/// <param name="coordinates">Coordinates of the markers.</param>
/// <param name="locNames">Names of the marekrs (unused currently).</param>
/// <param name="zoom">Zoom level of the map.</param>
/// <param name="center">Location of the center of the map.</param>
public void ShowMap(List <Map.Coordinate> coordinates, List <string> locNames, double zoom, Map.Coordinate center)
{
if (map != null)
{
map.Dispose();
}
map = InitMap();
GeometryFactory gf = new GeometryFactory(new PrecisionModel(), 4326);
List <IGeometry> locations = coordinates.Select(c => gf.CreatePoint(new Coordinate(c.Longitude, c.Latitude))).ToList <IGeometry>();
VectorLayer markerLayer = new VectorLayer("Markers");
markerLayer.Style.Symbol = GetResourceImage("ApsimNG.Resources.Marker.png");
markerLayer.Style.SymbolOffset = new PointF(0, -16); // Offset so the point is marked by the tip of the symbol, not its center
markerLayer.DataSource = new GeometryProvider(locations);
markerLayer.CoordinateTransformation = LatLonToMetres;
map.Layers.Add(markerLayer);
Zoom = zoom;
Coordinate location = LatLonToMetres.MathTransform.Transform(new Coordinate(center.Longitude, center.Latitude));
map.Center = location;
if (image.Allocation.Width > 1 && image.Allocation.Height > 1)
{
RefreshMap();
}
}
