Ejemplo n.º 1
0
        /// <summary>
        /// Sets ViewportScale and ViewportTransform values.
        /// </summary>
        public virtual void SetViewportTransform(Location projectionCenter, Location mapCenter, Point viewportCenter, double zoomLevel, double heading)
        {
            ViewportScale = GetViewportScale(zoomLevel);

            ViewportTransform.Matrix = MatrixEx.TranslateScaleRotateTranslate(
                LocationToPoint(mapCenter), ViewportScale, -ViewportScale, heading, viewportCenter);
        }
Ejemplo n.º 2
0
        private void SetRenderTransform()
        {
            var tileScale  = (1 << TileGrid.ZoomLevel);
            var scale      = Math.Pow(2d, parentMap.ZoomLevel) / tileScale;
            var tileCenter = GetTileCenter(tileScale);
            var tileOrigin = new Point(TileSource.TileSize * (tileCenter.X - TileGrid.XMin), TileSource.TileSize * (tileCenter.Y - TileGrid.YMin));
            var viewCenter = new Point(parentMap.RenderSize.Width / 2d, parentMap.RenderSize.Height / 2d);

            ((MatrixTransform)RenderTransform).Matrix =
                MatrixEx.TranslateScaleRotateTranslate(tileOrigin, scale, parentMap.Heading, viewCenter);
        }
Ejemplo n.º 3
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        private void SetRenderTransform()
        {
            var tileScale   = (double)(1 << TileGrid.ZoomLevel);
            var scale       = Math.Pow(2d, parentMap.ZoomLevel) / tileScale;
            var tileCenterX = tileScale * (0.5 + parentMap.Center.Longitude / 360d);
            var tileCenterY = tileScale * (0.5 - WebMercatorProjection.LatitudeToY(parentMap.Center.Latitude) / 360d);
            var tileOriginX = MapProjection.TileSize * (tileCenterX - TileGrid.XMin);
            var tileOriginY = MapProjection.TileSize * (tileCenterY - TileGrid.YMin);
            var viewCenterX = parentMap.RenderSize.Width / 2d;
            var viewCenterY = parentMap.RenderSize.Height / 2d;

            ((MatrixTransform)RenderTransform).Matrix = MatrixEx.TranslateScaleRotateTranslate(
                -tileOriginX, -tileOriginY, scale, scale, parentMap.Heading, viewCenterX, viewCenterY);
        }
Ejemplo n.º 4
0
        private TileGrid GetTileGrid()
        {
            var tileZoomLevel = Math.Max(0, (int)Math.Round(parentMap.ZoomLevel + ZoomLevelOffset));
            var tileScale     = (1 << tileZoomLevel);
            var scale         = tileScale / (Math.Pow(2d, parentMap.ZoomLevel) * TileSource.TileSize);
            var tileCenter    = GetTileCenter(tileScale);
            var viewCenter    = new Point(parentMap.RenderSize.Width / 2d, parentMap.RenderSize.Height / 2d);

            var transform = new MatrixTransform
            {
                Matrix = MatrixEx.TranslateScaleRotateTranslate(viewCenter, scale, -parentMap.Heading, tileCenter)
            };

            var bounds = transform.TransformBounds(new Rect(0d, 0d, parentMap.RenderSize.Width, parentMap.RenderSize.Height));

            return(new TileGrid(tileZoomLevel,
                                (int)Math.Floor(bounds.X), (int)Math.Floor(bounds.Y),
                                (int)Math.Floor(bounds.X + bounds.Width), (int)Math.Floor(bounds.Y + bounds.Height)));
        }
Ejemplo n.º 5
0
        private TileGrid GetTileGrid()
        {
            var tileZoomLevel = Math.Max(0, (int)Math.Round(parentMap.ZoomLevel + ZoomLevelOffset));
            var tileScale     = (double)(1 << tileZoomLevel);
            var scale         = tileScale / (Math.Pow(2d, parentMap.ZoomLevel) * MapProjection.TileSize);
            var tileCenterX   = tileScale * (0.5 + parentMap.Center.Longitude / 360d);
            var tileCenterY   = tileScale * (0.5 - WebMercatorProjection.LatitudeToY(parentMap.Center.Latitude) / 360d);
            var viewCenterX   = parentMap.RenderSize.Width / 2d;
            var viewCenterY   = parentMap.RenderSize.Height / 2d;

            var transform = new MatrixTransform
            {
                Matrix = MatrixEx.TranslateScaleRotateTranslate(-viewCenterX, -viewCenterY, scale, scale, -parentMap.Heading, tileCenterX, tileCenterY)
            };

            var bounds = transform.TransformBounds(new Rect(0d, 0d, parentMap.RenderSize.Width, parentMap.RenderSize.Height));

            return(new TileGrid(tileZoomLevel,
                                (int)Math.Floor(bounds.X), (int)Math.Floor(bounds.Y),
                                (int)Math.Floor(bounds.X + bounds.Width), (int)Math.Floor(bounds.Y + bounds.Height)));
        }