public static void AddMapLayersAndStyles()
{
//ExStart: AddMapLayersAndStyles
using (var map = new Map(800, 476))
{
var baseMapSymbolizer = new SimpleFill {
FillColor = Color.Salmon, StrokeWidth = 0.75
};
map.Add(VectorLayer.Open(dataDir + "basemap.shp", Drivers.Shapefile), baseMapSymbolizer);
var citiesSymbolizer = new SimpleMarker()
{
FillColor = Color.LightBlue
};
citiesSymbolizer.FeatureBasedConfiguration = (feature, symbolizer) =>
{
var population = feature.GetValue <int>("population");
symbolizer.Size = 10 * population / 1000;
if (population < 2500)
{
symbolizer.FillColor = Color.GreenYellow;
}
};
map.Add(VectorLayer.Open(dataDir + "points.geojson", Drivers.GeoJson), citiesSymbolizer);
map.Render(dataDir + "cities_out.svg", Renderers.Svg);
}
//ExEnd: AddMapLayersAndStyles
}
public static void GeometryGenerator()
{
//ExStart: GeometryGenerator
using (var map = new Map(500, 200))
{
var symbol = new GeometryGenerator
{
Expression = f =>
{
return(f.Geometry.GetBuffer(30_000));
},
Symbolizer = new SimpleFill
{
FillColor = Color.LightBlue,
StrokeColor = Color.Blue,
},
};
map.Add(VectorLayer.Open(dataDir + "points.geojson", Drivers.GeoJson), symbol);
map.Padding = 20;
map.SpatialReferenceSystem = SpatialReferenceSystem.WebMercator;
map.Render(dataDir + "geometry_generator_out.svg", Renderers.Svg);
}
//ExEnd: GeometryGenerator
}
public static void DefaultFillStyle()
{
//ExStart: DefaultFillStyle
using (var map = new Map(500, 450))
{
var symbolizer = new SimpleFill();
map.Add(VectorLayer.Open(dataDir + "polygons.geojson", Drivers.GeoJson), symbolizer);
map.Render(dataDir + "polygons_out.svg", Renderers.Svg);
}
//ExEnd: DefaultFillStyle
}
public static void ChangeFillStyle()
{
//ExStart: ChangeFillStyle
using (var map = new Map(500, 450))
{
var symbolizer = new SimpleFill {
FillColor = Color.Azure, StrokeColor = Color.Brown
};
map.Add(VectorLayer.Open(dataDir + "polygons.geojson", Drivers.GeoJson), symbolizer);
map.Render(dataDir + "polygons_out.svg", Renderers.Svg);
}
//ExEnd: ChangeFillStyle
}
public Pathfinder()
{
aStar = new AStar <T>();
simpleFill = new SimpleFill <T>();
}
