/// <summary> /// Raises the paint event. /// </summary> /// <param name="e"></param> protected override void OnPaint(PaintEventArgs e) { if (this.Scene != null) { // only render when scene and view are set. var bitmap = new Bitmap((int)e.Graphics.VisibleClipBounds.Width, (int)e.Graphics.VisibleClipBounds.Height); Graphics g = Graphics.FromImage(bitmap); // create current view. View2D view = this.CreateCurrentView(g.VisibleClipBounds.Width, g.VisibleClipBounds.Height); // initialize renderer. var graphicsRenderer2D = new GraphicsRenderer2D(); // render the scene. graphicsRenderer2D.Render(g, this.Scene, view); e.Graphics.DrawImageUnscaled(bitmap, 0, 0); } }
/// <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> /// Raises the paint event. /// </summary> /// <param name="e"></param> protected override void OnPaint(PaintEventArgs e) { if (this.Scene != null) { // only render when scene and view are set. var bitmap = new Bitmap((int) e.Graphics.VisibleClipBounds.Width, (int) e.Graphics.VisibleClipBounds.Height); Graphics g = Graphics.FromImage(bitmap); // create current view. View2D view = this.CreateCurrentView(g.VisibleClipBounds.Width, g.VisibleClipBounds.Height); // initialize renderer. var graphicsRenderer2D = new GraphicsRenderer2D(); // render the scene. graphicsRenderer2D.Render(g, this.Scene, view); e.Graphics.DrawImageUnscaled(bitmap, 0, 0); } }
/// <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; }