private void RenderFeature(SKCanvas canvas, IViewport viewport, IStyle style, IFeature feature)
{
if (feature.Geometry is Point)
{
PointRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, _symbolTextureCache);
}
else if (feature.Geometry is MultiPoint)
{
MultiPointRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, _symbolTextureCache);
}
else if (feature.Geometry is LineString)
{
LineStringRenderer.Draw(canvas, viewport, style, feature.Geometry);
}
else if (feature.Geometry is MultiLineString)
{
MultiLineStringRenderer.Draw(canvas, viewport, style, feature.Geometry);
}
else if (feature.Geometry is Polygon)
{
PolygonRenderer.Draw(canvas, viewport, style, feature.Geometry);
}
else if (feature.Geometry is MultiPolygon)
{
MultiPolygonRenderer.Draw(canvas, viewport, style, feature.Geometry);
}
else if (feature.Geometry is IRaster)
{
RasterRenderer.Draw(canvas, viewport, style, feature, _tileTextureCache, _currentIteration);
}
}
private void RenderFeature(SKCanvas canvas, IReadOnlyViewport viewport, IStyle style, IFeature feature, float layerOpacity)
{
if (feature.Geometry is Point)
{
PointRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, _symbolCache, layerOpacity * style.Opacity);
}
else if (feature.Geometry is MultiPoint)
{
MultiPointRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, _symbolCache, layerOpacity * style.Opacity);
}
else if (feature.Geometry is LineString)
{
LineStringRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, layerOpacity * style.Opacity);
}
else if (feature.Geometry is MultiLineString)
{
MultiLineStringRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, layerOpacity * style.Opacity);
}
else if (feature.Geometry is Polygon)
{
PolygonRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, layerOpacity * style.Opacity, _symbolCache);
}
else if (feature.Geometry is MultiPolygon)
{
MultiPolygonRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, layerOpacity * style.Opacity, _symbolCache);
}
else if (feature.Geometry is IRaster)
{
RasterRenderer.Draw(canvas, viewport, style, feature, layerOpacity * style.Opacity, _tileCache, _currentIteration);
}
}
public static void Draw(SKCanvas canvas, IViewport viewport, IStyle style, IFeature feature, IGeometry geometry)
{
var multiLineString = (MultiLineString)geometry;
foreach (var lineString in multiLineString)
{
LineStringRenderer.Draw(canvas, viewport, style, feature, lineString);
}
}
public static void Draw(SKCanvas canvas, IReadOnlyViewport viewport, IStyle style, IFeature feature,
MultiLineString multiLineString, float opacity)
{
foreach (var geometry in multiLineString.Geometries)
{
var lineString = (LineString)geometry;
LineStringRenderer.Draw(canvas, viewport, style, feature, lineString, opacity);
}
}
private void RenderFeature(SKCanvas canvas, IReadOnlyViewport viewport, ILayer layer, IStyle style, IFeature feature, float layerOpacity)
{
// Check, if we have a special renderer for this style
if (StyleRenderers.ContainsKey(style.GetType()))
{
// Save canvas
canvas.Save();
// We have a special renderer, so try, if it could draw this
var result = ((ISkiaStyleRenderer)StyleRenderers[style.GetType()]).Draw(canvas, viewport, layer, feature, style, _symbolCache);
// Restore old canvas
canvas.Restore();
// Was it drawn?
if (result)
{
// Yes, special style renderer drawn correct
return;
}
}
// No special style renderer handled this up to now, than try standard renderers
if (feature.Geometry is Point)
{
PointRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, _symbolCache, layerOpacity * style.Opacity);
}
else if (feature.Geometry is MultiPoint)
{
MultiPointRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, _symbolCache, layerOpacity * style.Opacity);
}
else if (feature.Geometry is LineString)
{
LineStringRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, layerOpacity * style.Opacity);
}
else if (feature.Geometry is MultiLineString)
{
MultiLineStringRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, layerOpacity * style.Opacity);
}
else if (feature.Geometry is Polygon)
{
PolygonRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, layerOpacity * style.Opacity, _symbolCache);
}
else if (feature.Geometry is MultiPolygon)
{
MultiPolygonRenderer.Draw(canvas, viewport, style, feature, feature.Geometry, layerOpacity * style.Opacity, _symbolCache);
}
else if (feature.Geometry is IRaster)
{
RasterRenderer.Draw(canvas, viewport, style, feature, layerOpacity * style.Opacity, _tileCache, _currentIteration);
}
}
private static void Draw(SKCanvas canvas, IReadOnlyViewport viewport, IStyle style, float layerOpacity,
IFeature feature, Geometry?geometry, SymbolCache symbolCache)
{
if (geometry is Point point)
{
PointRenderer.Draw(canvas, viewport, style, feature, point.X, point.Y, symbolCache,
layerOpacity * style.Opacity);
}
else if (geometry is MultiPoint multiPoint)
{
MultiPointRenderer.Draw(canvas, viewport, style, feature, multiPoint,
symbolCache, layerOpacity * style.Opacity);
}
else if (geometry is LineString lineString)
{
LineStringRenderer.Draw(canvas, viewport, style, feature, lineString,
layerOpacity * style.Opacity);
}
else if (geometry is MultiLineString multiLineString)
{
MultiLineStringRenderer.Draw(canvas, viewport, style, feature, multiLineString,
layerOpacity * style.Opacity);
}
else if (geometry is Polygon polygon)
{
PolygonRenderer.Draw(canvas, viewport, style, feature, polygon,
layerOpacity * style.Opacity, symbolCache);
}
else if (geometry is MultiPolygon multiPolygon)
{
MultiPolygonRenderer.Draw(canvas, viewport, style, feature, multiPolygon,
layerOpacity * style.Opacity, symbolCache);
}
else if (geometry is GeometryCollection collection)
{
for (var i = 0; i < collection.NumGeometries; i++)
{
Draw(canvas, viewport, style, layerOpacity, feature, collection.GetGeometryN(i), symbolCache);
}
}
else
{
Logger.Log(LogLevel.Warning,
$"Failed to find renderer for geometry feature of type {geometry?.GetType()}");
}
}
public bool Draw(SKCanvas canvas, IReadOnlyViewport viewport, ILayer layer, IFeature feature, IStyle style, ISymbolCache symbolCache, long iteration)
{
try
{
var vectorStyle = (VectorStyle)style;
var opacity = (float)(layer.Opacity * style.Opacity);
switch (feature)
{
case RectFeature rectFeature:
PolygonRenderer.Draw(canvas, viewport, vectorStyle, rectFeature, rectFeature.Rect.ToPolygon(), opacity);
break;
case PointFeature pointFeature:
SymbolStyleRenderer.DrawSymbol(canvas, viewport, layer, pointFeature.Point.X, pointFeature.Point.Y, new SymbolStyle { Outline = vectorStyle.Outline, Fill = vectorStyle.Fill, Line = vectorStyle.Line });
break;
case GeometryFeature geometryFeature:
switch (geometryFeature.Geometry)
{
case GeometryCollection collection:
for (var i = 0; i < collection.NumGeometries; i++)
Draw(canvas, viewport, layer, new GeometryFeature(collection.GetGeometryN(i)), style, symbolCache, iteration);
break;
case Point point:
Draw(canvas, viewport, layer, new PointFeature(point.X, point.Y), style, symbolCache, iteration);
break;
case Polygon polygon:
PolygonRenderer.Draw(canvas, viewport, vectorStyle, feature, polygon, opacity, symbolCache);
break;
case LineString lineString:
LineStringRenderer.Draw(canvas, viewport, vectorStyle, lineString, opacity);
break;
default:
throw new ArgumentException("Unknown geometry of Feature");
}
break;
}
}
catch (Exception ex)
{
Logger.Log(LogLevel.Error, ex.Message, ex);
}
return true;
}