public void VectorTile_Overzoom_Render()
{
Mapnik.RegisterDatasource(Path.Combine(Mapnik.Paths["InputPlugins"], "shape.input"));
Map m = new Map(256, 256);
m.Load(@".\data\layer.xml");
m.ZoomToBox(-20037508.34, -20037508.34, 20037508.34, 20037508.34);
VectorTile v1 = new VectorTile(0, 0, 0, 256, 256);
m.Render(v1);
m.ZoomToBox(-20037508.34, 0, 0, 20037508.34);
VectorTile v2 = new VectorTile(1, 0, 0, 256, 256);
m.Render(v2);
Map renderMap = new Map(256, 256);
renderMap.Load(@".\data\style.xml");
Image i1 = new Image(256, 256);
Image i2 = new Image(256, 256);
Dictionary <string, object> options = new Dictionary <string, object>();
options["Z"] = 1;
v1.Render(renderMap, i1, options);
v2.Render(renderMap, i2);
//Small diff showing up between images
Assert.IsTrue(i1.Compare(i2) - 500 < 0);
}
public void VectorTile_Render_Grid()
{
Mapnik.RegisterDatasource(Path.Combine(Mapnik.Paths["InputPlugins"], "shape.input"));
Map m = new Map(256, 256);
m.Load(@".\data\layer.xml");
m.Extent = new double[] { -20037508.34, 0, 0, 20037508.34 };
VectorTile v = new VectorTile(1, 0, 0);
m.Render(v);
VectorTile v2 = new VectorTile(1, 0, 0);
v2.SetData(v.GetData());
Map m2 = new Map(256, 256);
m2.Load(@".\data\style.xml");
Grid g = new Grid(256, 256);
var options = new Dictionary <string, object>()
{
{ "Fields", new List <string>()
{
"FIPS"
} },
{ "Layer", "world" }
};
v2.Render(m2, g, options);
Dictionary <string, object> grid = g.Encode();
Assert.AreEqual(grid.Keys.Count, 3);
//Test for keys
List <string> keyList = (List <string>)grid["keys"];
Assert.AreNotEqual(keyList.Count, 0);
//Test for data
Dictionary <string, object> dataDict = (Dictionary <string, object>)grid["data"];
Assert.AreNotEqual(dataDict.Count, 0);
//data count should equal keys + 1
Assert.AreEqual(keyList.Count, dataDict.Count + 1);
}
public void VectorTile_AddImage()
{
VectorTile v = new VectorTile(1, 0, 0);
byte[] bytes = File.ReadAllBytes(@".\data\world_1.0.0.png");
v.AddImage(bytes, "raster");
Assert.IsFalse(v.Empty());
Assert.IsTrue(v.Painted());
CollectionAssert.AreEquivalent(new List <string>()
{
"raster"
}, v.Names().ToList());
Map m = new Map(256, 256);
m.Load(@".\data\raster_style.xml");
Image i = new Image(256, 256);
v.Render(m, i);
Assert.AreEqual(0, i.Compare(Image.FromBytes(bytes)));
}
public void VectorTile_Render_Image()
{
Mapnik.RegisterDatasource(Path.Combine(Mapnik.Paths["InputPlugins"], "shape.input"));
Map m = new Map(256, 256);
m.Load(@".\data\layer.xml");
m.Extent = new double[] { -20037508.34, 0, 0, 20037508.34 };
VectorTile v = new VectorTile(1, 0, 0);
m.Render(v);
VectorTile v2 = new VectorTile(1, 0, 0);
v2.SetData(v.GetData());
Map m2 = new Map(256, 256);
m2.Load(@".\data\style.xml");
Image i = new Image(256, 256);
v2.Render(m2, i);
Assert.AreEqual(0, i.Compare(Image.Open(@".\data\world_1.0.0.png")));
}
public void VectorTile_Overzoom_Render()
{
Mapnik.RegisterDatasource(Path.Combine(Mapnik.Paths["InputPlugins"], "shape.input"));
Map m = new Map(256, 256);
m.Load(@".\data\layer.xml");
m.ZoomToBox(-20037508.34, -20037508.34, 20037508.34, 20037508.34);
VectorTile v1 = new VectorTile(0, 0, 0, 256, 256);
m.Render(v1);
m.ZoomToBox(-20037508.34, 0, 0, 20037508.34);
VectorTile v2 = new VectorTile(1, 0, 0, 256, 256);
m.Render(v2);
Map renderMap = new Map(256, 256);
renderMap.Load(@".\data\style.xml");
Image i1 = new Image(256, 256);
Image i2 = new Image(256, 256);
Dictionary<string, object> options = new Dictionary<string, object>();
options["Z"] = 1;
v1.Render(renderMap, i1, options);
v2.Render(renderMap, i2);
//Small diff showing up between images
Assert.IsTrue(i1.Compare(i2)-500 < 0);
}
public void VectorTile_Render_Grid()
{
Mapnik.RegisterDatasource(Path.Combine(Mapnik.Paths["InputPlugins"], "shape.input"));
Map m = new Map(256, 256);
m.Load(@".\data\layer.xml");
m.Extent = new double[] { -20037508.34, 0, 0, 20037508.34 };
VectorTile v = new VectorTile(1, 0, 0);
m.Render(v);
VectorTile v2 = new VectorTile(1, 0, 0);
v2.SetData(v.GetData());
Map m2 = new Map(256, 256);
m2.Load(@".\data\style.xml");
Grid g = new Grid(256, 256);
var options = new Dictionary<string, object>()
{
{"Fields", new List<string>() { "FIPS" } },
{"Layer", "world" }
};
v2.Render(m2, g, options);
Dictionary<string, object > grid = g.Encode();
Assert.AreEqual(grid.Keys.Count, 3);
//Test for keys
List<string> keyList = (List<string>)grid["keys"];
Assert.AreNotEqual(keyList.Count, 0);
//Test for data
Dictionary<string, object> dataDict = (Dictionary<string, object>)grid["data"];
Assert.AreNotEqual(dataDict.Count, 0);
//data count should equal keys + 1
Assert.AreEqual(keyList.Count, dataDict.Count + 1);
}
public void VectorTile_Render_Image()
{
Mapnik.RegisterDatasource(Path.Combine(Mapnik.Paths["InputPlugins"], "shape.input"));
Map m = new Map(256, 256);
m.Load(@".\data\layer.xml");
m.Extent = new double[] { -20037508.34, 0, 0, 20037508.34 };
VectorTile v = new VectorTile(1, 0, 0);
m.Render(v);
VectorTile v2 = new VectorTile(1, 0, 0);
v2.SetData(v.GetData());
Map m2 = new Map(256, 256);
m2.Load(@".\data\style.xml");
Image i = new Image(256, 256);
v2.Render(m2, i);
Assert.AreEqual(0,i.Compare(Image.Open(@".\data\world_1.0.0.png")));
}
public void VectorTile_AddImage()
{
VectorTile v = new VectorTile(1, 0, 0);
byte[] bytes = File.ReadAllBytes(@".\data\world_1.0.0.png");
v.AddImage(bytes, "raster");
Assert.IsFalse(v.Empty());
Assert.IsTrue(v.Painted());
CollectionAssert.AreEquivalent(new List<string>() { "raster" }, v.Names().ToList());
Map m = new Map(256, 256);
m.Load(@".\data\raster_style.xml");
Image i = new Image(256, 256);
v.Render(m, i);
Assert.AreEqual(0,i.Compare(Image.FromBytes(bytes)));
}
public byte[] Render(Coord coord, string format, int tileWidth, int tileHeight)
{
byte[] tileBytes = this._tileSource.GetTile(coord, "pbf");
// Uncompress bytes
if (tileBytes.Length > 0)
{
tileBytes = Decompress(tileBytes);
}
// Set vector tile bytes
// mapnik vector tile assumes top left origin
int y = coord.Y;
if (!coord.TopOrigin)
y = this._tileSource.GridSet.GridHeight(coord.Z) - coord.Y - 1;
VectorTile vTile = new VectorTile(coord.Z, coord.X, y, Convert.ToUInt32(tileWidth), Convert.ToUInt32(tileHeight));
vTile.SetBytes(tileBytes);
// Get coord envelope
Envelope envelope = this._tileSource.GridSet.CoordToEnvelope(coord);
// Lock map object for rendering
// TO DO: better strategy is to create a pool of map objects
lock (mapLock)
{
_map.Width = Convert.ToUInt32(tileWidth);
_map.Height = Convert.ToUInt32(tileHeight);
_map.ZoomToBox(envelope.Minx, envelope.Miny, envelope.Maxx, envelope.Maxy);
Image img = new Image(Convert.ToInt32(_map.Width), Convert.ToInt32(_map.Height));
vTile.Render(_map, img);
format = format.ToLower();
if (format == "png" || format == "jpg")
{
if (format == "png")
{
format = this._pngOptions;
}
if (format == "jpg")
{
format = this._jpegOptions;
}
return img.Encode(format);
}
// Format not expected so throw exception
throw new InvalidTileFormatException(
string.Format("Invalid tile FORMAT {0}", format)
);
}
}
