public IStyle ConvertRasterLayer(float contextZoom, StyleLayer styleLayer)
{
// visibility
// Optional enum. One of visible, none. Defaults to visible.
// The display of this layer. none hides this layer.
if (styleLayer.Layout?.Visibility != null && styleLayer.Layout.Visibility.Equals("none"))
{
return(null);
}
var paint = styleLayer.Paint;
var styleRaster = new RasterStyle();
// raster-opacity
// Optional number. Defaults to 1.
// The opacity at which the image will be drawn.
if (paint?.RasterOpacity != null)
{
styleRaster.Opacity = paint.RasterOpacity.Evaluate(contextZoom);
}
// raster-hue-rotate
// Optional number. Units in degrees. Defaults to 0.
// Rotates hues around the color wheel.
// raster-brightness-min
// Optional number.Defaults to 0.
// Increase or reduce the brightness of the image. The value is the minimum brightness.
// raster-brightness-max
// Optional number. Defaults to 1.
// Increase or reduce the brightness of the image. The value is the maximum brightness.
// raster-saturation
// Optional number.Defaults to 0.
// Increase or reduce the saturation of the image.
// raster-contrast
// Optional number. Defaults to 0.
// Increase or reduce the contrast of the image.
// raster-fade-duration
// Optional number.Units in milliseconds.Defaults to 300.
// Fade duration when a new tile is added.
return(styleRaster);
}
/// <summary>
/// Create tile layer for given tile source
/// </summary>
/// <param name="tileSource">Tile source to use for this layer</param>
/// <param name="minTiles">Minimum number of tiles to cache</param>
/// <param name="maxTiles">Maximum number of tiles to cache</param>
/// <param name="dataFetchStrategy">Strategy to get list of tiles for given extent</param>
/// <param name="renderFetchStrategy"></param>
/// <param name="minExtraTiles">Number of minimum extra tiles for memory cache</param>
/// <param name="maxExtraTiles">Number of maximum extra tiles for memory cache</param>
/// <param name="fetchTileAsFeature">Fetch tile as feature</param>
// ReSharper disable once UnusedParameter.Local // Is public and won't break this now
public TileLayer(ITileSource tileSource, int minTiles = 200, int maxTiles = 300,
IDataFetchStrategy?dataFetchStrategy = null, IRenderFetchStrategy?renderFetchStrategy = null,
int minExtraTiles = -1, int maxExtraTiles = -1, Func <TileInfo, Task <IFeature?> >?fetchTileAsFeature = null)
{
_tileSource = tileSource ?? throw new ArgumentException($"{tileSource} can not null");
MemoryCache = new MemoryCache <IFeature?>(minTiles, maxTiles);
Style = new RasterStyle();
Attribution.Text = _tileSource.Attribution?.Text;
Attribution.Url = _tileSource.Attribution?.Url;
_extent = _tileSource.Schema?.Extent.ToMRect();
dataFetchStrategy ??= new DataFetchStrategy(3);
_renderFetchStrategy = renderFetchStrategy ?? new RenderFetchStrategy();
_minExtraTiles = minExtraTiles;
_maxExtraTiles = maxExtraTiles;
_tileFetchDispatcher = new TileFetchDispatcher(MemoryCache, _tileSource.Schema, fetchTileAsFeature ?? ToFeatureAsync, dataFetchStrategy);
_tileFetchDispatcher.DataChanged += TileFetchDispatcherOnDataChanged;
_tileFetchDispatcher.PropertyChanged += TileFetchDispatcherOnPropertyChanged;
}
private void SetUpRasterLayer()
{
FeatureLayer myRasterLayer = _map.Layers["florida"] as FeatureLayer;
_rasterTable = myRasterLayer.Table;
RasterStyle rs = new RasterStyle();
rs.Contrast = 33;
rs.Grayscale = true;
// this composite style will affect the raster as intended
CompositeStyle csRaster = new CompositeStyle(rs);
FeatureOverrideStyleModifier fosm =
new FeatureOverrideStyleModifier("Style Mod", csRaster);
FeatureStyleModifiers modifiers = myRasterLayer.Modifiers;
modifiers.Append(fosm);
}
private void SetUpRasterLayer()
{
FeatureLayer myRasterLayer = _map.Layers["florida"] as FeatureLayer;
_rasterTable = myRasterLayer.Table;
RasterStyle rs = new RasterStyle();
rs.Contrast = 33;
rs.Grayscale = true;
// this composite style will affect the raster as intended
CompositeStyle csRaster = new CompositeStyle(rs);
FeatureOverrideStyleModifier fosm =
new FeatureOverrideStyleModifier("Style Mod", csRaster);
FeatureStyleModifiers modifiers = myRasterLayer.Modifiers;
modifiers.Append(fosm);
}
