private static void PositionGeometry(UIElement renderedGeometry, IViewport viewport, IStyle style, Providers.IFeature feature)
{
if (feature.Geometry is Geometries.Point)
{
GeometryRenderer.PositionPoint(renderedGeometry, feature.Geometry as Geometries.Point, style, viewport);
}
if (feature.Geometry is MultiPoint)
{
GeometryRenderer.PositionGeometry(renderedGeometry, viewport);
}
if (feature.Geometry is LineString)
{
GeometryRenderer.PositionGeometry(renderedGeometry, viewport);
}
if (feature.Geometry is MultiLineString)
{
GeometryRenderer.PositionGeometry(renderedGeometry, viewport);
}
if (feature.Geometry is Polygon)
{
GeometryRenderer.PositionGeometry(renderedGeometry, viewport);
}
if (feature.Geometry is MultiPolygon)
{
GeometryRenderer.PositionGeometry(renderedGeometry, viewport);
}
if (feature.Geometry is IRaster)
{
GeometryRenderer.PositionRaster(renderedGeometry, feature.Geometry.GetBoundingBox(), viewport);
}
}
private static UIElement RenderGeometry(IViewport viewport, IStyle style, Providers.IFeature feature)
{
if (feature.Geometry is Geometries.Point)
{
return(GeometryRenderer.RenderPoint(feature.Geometry as Geometries.Point, style, viewport));
}
if (feature.Geometry is MultiPoint)
{
return(GeometryRenderer.RenderMultiPoint(feature.Geometry as MultiPoint, style, viewport));
}
if (feature.Geometry is LineString)
{
return(GeometryRenderer.RenderLineString(feature.Geometry as LineString, style, viewport));
}
if (feature.Geometry is MultiLineString)
{
return(GeometryRenderer.RenderMultiLineString(feature.Geometry as MultiLineString, style, viewport));
}
if (feature.Geometry is Polygon)
{
return(GeometryRenderer.RenderPolygon(feature.Geometry as Polygon, style, viewport));
}
if (feature.Geometry is MultiPolygon)
{
return(GeometryRenderer.RenderMultiPolygon(feature.Geometry as MultiPolygon, style, viewport));
}
if (feature.Geometry is IRaster)
{
return(GeometryRenderer.RenderRaster(feature.Geometry as IRaster, style, viewport));
}
return(null);
}
private static void RenderTile(WriteableBitmap bitmap, ITileSchema schema, IViewport viewport, MemoryCache <Feature> memoryCache)
{
int level = BruTile.Utilities.GetNearestLevel(schema.Resolutions, viewport.Resolution);
var tiles = schema.GetTilesInView(viewport.Extent.ToExtent(), level);
foreach (TileInfo tile in tiles)
{
var p = NativeCache.Find(tile.Index);
if (p != null)
{
bitmap.Render(p, null);
continue;
}
var image = memoryCache.Find(tile.Index);
if (image != null)
{
Rect dest = WorldToView(tile.Extent, viewport);
dest = GeometryRenderer.RoundToPixel(dest);
//See here the clumsy way to write a bitmap in SL/WPF
var path = new System.Windows.Shapes.Path();
path.Data = new RectangleGeometry {
Rect = dest
};
var bitmapImage = new BitmapImage();
bitmapImage.SetSource(((IRaster)image.Geometry).Data);
path.Fill = new ImageBrush {
ImageSource = bitmapImage
};
path.CacheMode = new BitmapCache();
bitmap.Render(path, null);
}
}
}
