/// <summary>
/// Zoom to the given makers list.
/// </summary>
/// <param name="marker"></param>
public void ZoomToMarkers(List <MapMarker> markers, double percentage)
{
// float height = _rect.Height;
// float width = _rect.Width;
float width = this.Frame.Width;
float height = this.Frame.Height;
RectangleF rect = this.Frame;
if (width > 0)
{
PointF2D[] points = new PointF2D[markers.Count];
for (int idx = 0; idx < markers.Count; idx++)
{
points[idx] = new PointF2D(this.Map.Projection.ToPixel(markers[idx].Location));
}
View2D view = this.CreateView(rect);
// View2D view = this.CreateView(this.Frame);
View2D fittedView = view.Fit(points, percentage);
float zoom = (float)this.Map.Projection.ToZoomLevel(fittedView.CalculateZoom(
width, height));
GeoCoordinate center = this.Map.Projection.ToGeoCoordinates(
fittedView.Center[0], fittedView.Center[1]);
_mapCenter = center;
this.MapZoom = zoom;
this.Change(false);
}
}
/// <summary>
/// Zooms to the given list of markers.
/// </summary>
/// <param name="markers"></param>
/// <param name="percentage"></param>
public void ZoomToMarkers(List <MapMarker> markers, double percentage)
{
float height = this.SurfaceHeight;
float width = this.SurfaceWidth;
if (width > 0)
{
PointF2D[] points = new PointF2D[markers.Count];
for (int idx = 0; idx < markers.Count; idx++)
{
points [idx] = new PointF2D(this.Map.Projection.ToPixel(markers [idx].Location));
}
View2D view = this.CreateView();
View2D fittedView = view.Fit(points, percentage);
float zoom = (float)this.Map.Projection.ToZoomLevel(fittedView.CalculateZoom(
width, height));
GeoCoordinate center = this.Map.Projection.ToGeoCoordinates(
fittedView.Center [0], fittedView.Center [1]);
this.SetMapView(center, this.MapTilt, zoom);
}
else
{
_latestZoomCall = new MapViewMarkerZoomEvent()
{
Markers = markers,
Percentage = percentage
};
}
}
/// <summary>
/// Renders the given data onto a 100x100 image using bounds around null-island (1,1,-1,-1) and the MapCSS definition.
/// </summary>
/// <param name="dataSource"></param>
/// <param name="mapCSS"></param>
/// <returns></returns>
private Bitmap Render(IDataSourceReadOnly dataSource, string mapCSS)
{
// create projection.
WebMercator projection = new WebMercator();
double[] topLeft = projection.ToPixel(new Math.Geo.GeoCoordinate(1, 1));
double[] bottomRight = projection.ToPixel(new Math.Geo.GeoCoordinate(-1, -1));
// create view (this comes down to (1,1,-1,-1) for a size of 100x100).
View2D view = View2D.CreateFromBounds(bottomRight[1], topLeft[0], topLeft[1], bottomRight[0]);
//View2D view = View2D.CreateFrom(0, 0, 100, 100, 1.0 / 200.0, false, true);
// create graphics
Bitmap rendering = new Bitmap(100, 100);
Graphics renderingGraphics = Graphics.FromImage(rendering);
renderingGraphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
renderingGraphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
renderingGraphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
renderingGraphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
// create renderer.
GraphicsRenderer2D graphicsRenderer = new GraphicsRenderer2D();
MapRenderer <Graphics> renderer = new MapRenderer <Graphics>(graphicsRenderer);
// create map.
OsmSharp.UI.Map.Map map = new OsmSharp.UI.Map.Map();
map.AddLayer(new LayerOsm(dataSource, new MapCSSInterpreter(mapCSS), projection));
// notify the map that there was a view change!
map.ViewChanged((float)view.CalculateZoom(100, 100), new Math.Geo.GeoCoordinate(0, 0), view);
// ... and finally do the actual rendering.
renderer.Render(Graphics.FromImage(rendering), map, view);
//rendering.Save(@"c:\temp\rendering.bmp");
return(rendering);
}
/// <summary>
/// Zooms to the given list of markers.
/// </summary>
/// <param name="controls"></param>
/// <param name="percentage"></param>
public void ZoomToControls(List <MapControl> controls, double percentage)
{
try
{
float height = this.SurfaceHeight;
float width = this.SurfaceWidth;
if (width > 0)
{
PointF2D[] points = new PointF2D[controls.Count];
for (int idx = 0; idx < controls.Count; idx++)
{
points[idx] = new PointF2D(this.Map.Projection.ToPixel(controls[idx].Location));
}
View2D view = this.CreateView();
View2D fittedView = view.Fit(points, percentage);
float zoom = (float)this.Map.Projection.ToZoomLevel(fittedView.CalculateZoom(
width, height));
GeoCoordinate center = this.Map.Projection.ToGeoCoordinates(
fittedView.Center[0], fittedView.Center[1]);
this.SetMapView(center, this.MapTilt, zoom);
}
else
{
_latestZoomCall = new MapViewControlZoomEvent()
{
Controls = controls,
Percentage = percentage
};
}
}
catch (Exception ex)
{
OsmSharp.Logging.Log.TraceEvent("MapViewSurface.ZoomToMarkers", TraceEventType.Critical,
string.Format("An unhandled exception occured:{0}", ex.ToString()));
}
}
/// <summary>
/// Zooms to the given list of markers.
/// </summary>
/// <param name="markers"></param>
public void ZoomToMarkers(List <MapMarker> markers, double percentage)
{
float height = this.LayoutParameters.Height;
float width = this.LayoutParameters.Width;
if (width > 0)
{
PointF2D[] points = new PointF2D[markers.Count];
for (int idx = 0; idx < markers.Count; idx++)
{
points[idx] = markers[idx].Location;
}
View2D view = this.CreateView();
View2D fittedView = view.Fit(points);
float zoom = (float)this.Map.Projection.ToZoomLevel(fittedView.CalculateZoom(
width, height));
GeoCoordinate center = this.Map.Projection.ToGeoCoordinates(
view.Center[0], view.Center[1]);
(this as IMapView).SetMapView(center, this.MapTilt, zoom);
}
}
