public void OverlayTilesReturnsTileForEmptyList()
{
var mapParameters = new MapParameters {
mapWidth = 4, mapHeight = 4
};
var result = TileServiceUtils.OverlayTiles(mapParameters, new Dictionary <TileOverlayType, byte[]>());
byte[] expectedResult = null;
using (Image <Rgba32> bitmap = new Image <Rgba32>(mapParameters.mapWidth, mapParameters.mapHeight))
{
expectedResult = bitmap.BitmapToByteArray();
}
for (int i = 0; i < expectedResult.Length; i++)
{
Assert.Equal(expectedResult[i], result[i]);
}
}
/// <summary>
/// Gets a single tile with various types of data overlayed on it according to what is requested.
/// </summary>
/// <param name="request">The tile request</param>
/// <returns>A TileResult</returns>
public async Task <byte[]> GetMapData(TileGenerationRequest request)
{
log.LogInformation("Getting map tile");
log.LogDebug("TileGenerationRequest: " + JsonConvert.SerializeObject(request));
log.LogDebug("Awaiting tiles to be completed");
var overlays = await Task.WhenAll(request.overlays.Select(overlay => RequestTile(request, overlay)));
log.LogDebug($"Tiles completed: {overlays.Count()} overlays");
var overlayTile =
TileServiceUtils.OverlayTiles(request.mapParameters, overlays.ToDictionary(k => k.Item1, v => v.Item2));
log.LogDebug("Tiles overlaid");
overlayTile = ScaleTile(request, overlayTile);
log.LogDebug("Tiles scaled");
return(overlayTile);
}
/// <summary>
/// Gets a map tile with DXF linework on it.
/// </summary>
/// <param name="parameters">Map parameters such as bounding box, tile size, zoom level etc.</param>
/// <param name="dxfFiles">The list of DXF files to overlay tiles for</param>
/// <returns>A bitmap</returns>
public async Task <byte[]> GetDxfBitmap(MapParameters parameters, IEnumerable <FileData> dxfFiles)
{
log.LogInformation("GetDxfBitmap");
byte[] overlayData = null;
if (dxfFiles != null && dxfFiles.Any())
{
List <byte[]> tileList = new List <byte[]>();
foreach (var dxfFile in dxfFiles)
{
if (dxfFile.ImportedFileType == ImportedFileType.Linework)
{
tileList.Add(await JoinDxfTiles(parameters, dxfFile));
}
}
log.LogDebug("Overlaying DXF bitmaps");
overlayData = TileServiceUtils.OverlayTiles(parameters, tileList);
}
return(overlayData);
}
