public void TileGeometryTransform_Transform_WebMercatorRegression2()
{
var tileGeometry = new TileGeometryTransform(new Tile(0, 0, 1), 4096);
var x = 0;
var y = 0;
tileGeometry.Transform(new CoordinateArraySequence(new Coordinate[]
{
new Coordinate(-90, 85.0 / 2),
}), 0, ref x, ref y);
Assert.Equal(2048, x);
Assert.Equal(3025, y);
}
/// <summary>
/// Adds the given linestring.
/// </summary>
/// <param name="heatMapTile">The tile.</param>
/// <param name="lineString">The linestring.</param>
/// <param name="cost">The cost.</param>
public static void Add(this HeatMapTile heatMapTile, LineString lineString, uint cost = 1)
{
void Draw(int x, int y)
{
if (x < 0)
{
return;
}
if (y < 0)
{
return;
}
if (x >= heatMapTile.Resolution)
{
return;
}
if (y >= heatMapTile.Resolution)
{
return;
}
heatMapTile[x, y] += cost;
}
var tile = new Tile(heatMapTile.TileId);
var tgt = new TileGeometryTransform(tile, heatMapTile.Resolution);
int currentX = 0, currentY = 0;
for (var c = 0; c < lineString.Coordinates.Length; c++)
{
var previousX = currentX;
var previousY = currentY;
tgt.Transform(lineString.CoordinateSequence,
c, ref currentX, ref currentY);
if (c == 0)
{
continue;
}
Bresenhams(previousX, previousY, currentX, currentY, Draw);
}
}
