/// <summary>
/// This function is used to validate the bitmap at specified level, x and y.
/// </summary>
/// <param name="testFolderName">Plate file folder.</param>
/// <param name="tileLocator">Tile Locator.</param>
/// <param name="level">Level of tile.</param>
/// <param name="x">X coordinate of the tile.</param>
/// <param name="y">Y coordinate of the tile.</param>
private void ValidatePyramid(string testFolderName, MockClasses.MockMultipleDemTileLocator tileLocator, int level, int x, int y)
{
Stream tileStream = PlateFileHelper.GetDEMTileFromMultiplePlates(level, x, y, testFolderName);
short[] expected = tileLocator.Deserialize(level, x, y);
short[] actual = GetDemTileData(tileStream);
Assert.IsTrue(CompareShortArray(expected, actual));
}
/// <summary>
/// Gets Dem for the specified tile id.
/// </summary>
/// <param name="id">Tile details id.</param>
/// <param name="level">Level of the image.</param>
/// <param name="x">X axis image.</param>
/// <param name="y">Y axis image.</param>
/// <returns>Dem for the specified image.</returns>
public Stream GetDem(string id, int level, int x, int y)
{
Stream outputStream = null;
try
{
string pyramidFolderPath = Path.Combine(this.PyramidLocation, id, Constants.PyramidFolder);
string demPlatesFolderPath = Path.Combine(this.PyramidLocation, id, Constants.DEMPlatesFolder);
DirectoryInfo pyramidFolder = new DirectoryInfo(pyramidFolderPath);
DirectoryInfo platesFolder = new DirectoryInfo(demPlatesFolderPath);
if (pyramidFolder.Exists)
{
string pyramidPath = Path.Combine(this.PyramidLocation, id, Constants.DemTilePath);
string filename = string.Format(CultureInfo.InvariantCulture, pyramidPath, level, x, y, Constants.DemExtension);
if (File.Exists(filename))
{
byte[] data = null;
using (Stream s = File.OpenRead(filename))
{
int length = (int)s.Length;
data = new byte[length];
s.Read(data, 0, length);
outputStream = new MemoryStream(data);
}
}
}
else if (platesFolder.Exists)
{
// Get from multiple plates
outputStream = PlateFileHelper.GetDEMTileFromMultiplePlates(level, x, y, platesFolder.FullName);
}
else
{
// If Pyramid folder is not available, then try to read from plate file.
FileInfo plateFile = pyramidFolder.Parent.GetFiles(Constants.PlateFileSearchPattern).FirstOrDefault();
if (plateFile != null && plateFile.Exists)
{
PlateFile plateFileInstance = new PlateFile(plateFile.FullName, level);
outputStream = plateFileInstance.GetFileStream(level, x, y);
}
}
}
catch (ArgumentException ex)
{
ErrorHandler.LogException(ex);
throw new FaultException(ex.Message);
}
catch (IOException ex)
{
ErrorHandler.LogException(ex);
throw new FaultException(ex.Message);
}
catch (ObjectDisposedException ex)
{
ErrorHandler.LogException(ex);
throw new FaultException(ex.Message);
}
return(outputStream);
}