public void TestRealData()
{
var fdt = GetRealFeatureDataTable();
FillRealDataTable(fdt);
var p = new SharpMap.Data.Providers.FeatureProvider(fdt);
var m = new SharpMap.Map(new Size(640, 640));
m.Layers.Add(new TileLayer(
new OsmTileSource(new OsmRequest(KnownTileServers.Mapnik) /*,
new FileCache(@"d:\temp\OSM", "png")*/), "OSM"));
var l = new HeatLayer(p, "Data", 0.001f);
l.LayerName = "HEAT";
m.Layers.Add(l);
#if DotSpatialProjections
l.CoordinateTransformation = new DotSpatial.Projections.CoordinateTransformation
{
Source = ProjectionInfo.FromEpsgCode(4326),
Target = ProjectionInfo.FromEpsgCode(3857)
};
#else
var ctfac = new ProjNet.CoordinateSystems.Transformations.CoordinateTransformationFactory();
l.CoordinateTransformation =
ctfac.CreateFromCoordinateSystems(ProjNet.CoordinateSystems.GeographicCoordinateSystem.WGS84,
ProjNet.CoordinateSystems.ProjectedCoordinateSystem.WebMercator);
#endif
l.ZoomMin = 0;// 0.01 * m.GetExtents().Width;
l.ZoomMax = /*0.9 * */m.GetExtents().Width;
l.OpacityMax = 1;
l.OpacityMin = 0.3f;
m.ZoomToBox(l.Envelope);
for (var i = 0; i < 5; i++)
{
using (var img = m.GetMap())
{
img.Save("RealDataHeat" + i + ".png");
}
m.Zoom /= 2;
}
m.ZoomToExtents();
using (var img = m.GetMap())
{
img.Save("RealDataHeat.png");
}
}
public void HeatLayerTest()
{
var m = new SharpMap.Map(new Size(640, 480));
var data = CreatingData.CreatePointFeatureDataTableFromArrays(
CreatingData.GetRandomOrdinates(150, 5, 6),
CreatingData.GetRandomOrdinates(150, 52, 53), null,
CreatingData.GetRandomOrdinates(150, 0, 1));
var p = new SharpMap.Data.Providers.FeatureProvider(data);
var l = new HeatLayer(p, "Data");
m.Layers.Add(l);
m.ZoomToBox(new Envelope(5.4, 5.8, 52.4, 52.6));
//m.ZoomToExtents();
var img = m.GetMap();
img.Save("HeatMap.png", ImageFormat.Png);
img.Dispose();
}