/// <summary>
/// Aggregates lower level DEM tiles to construct upper level tiles.
/// </summary>
/// <param name="level">
/// Zoom level.
/// </param>
/// <param name="tileX">
/// X coordinate.
/// </param>
/// <param name="tileY">
/// Y coordinate.
/// </param>
public void CreateParent(int level, int tileX, int tileY)
{
int level1 = checked (level + 1);
int x1 = checked (2 * tileX);
int y1 = checked (2 * tileY);
short[][] h = new short[4][];
h[0] = this.tileSerializer.Deserialize(level1, x1, y1);
h[1] = this.tileSerializer.Deserialize(level1, x1 + 1, y1);
h[2] = this.tileSerializer.Deserialize(level1, x1, y1 + 1);
h[3] = this.tileSerializer.Deserialize(level1, x1 + 1, y1 + 1);
int[][] mapping = ToastDemTileCreator.GetMapping(level, tileX, tileY);
short[] hp = new short[mapping.Length];
for (int k = 0; k < mapping.Length; k++)
{
int[] m = mapping[k];
int region = m[0];
int position = m[1];
if (h[region] != null)
{
hp[k] = h[region][position];
}
else
{
hp[k] = 0;
}
}
this.tileSerializer.Serialize(hp, level, tileX, tileY);
}
/// <summary>
/// Computes mapping for a given level, X and Y based on the quadrant that they belong to.
/// </summary>
/// <param name="level">
/// Zoom level.
/// </param>
/// <param name="tileX">
/// X coordinate.
/// </param>
/// <param name="tileY">
/// Y coordinate.
/// </param>
/// <returns>
/// Mapping generated.
/// </returns>
private static int[][] GetMapping(int level, int tileX, int tileY)
{
if (ToastDemTileCreator.IsSlashQuadrant(level, tileX, tileY))
{
return(ToastDemTileCreator.GetSlashMapping());
}
else
{
return(ToastDemTileCreator.GetBackslashMapping());
}
}
/// <summary>
/// Generates backslash quadrant mapping.
/// </summary>
/// <returns>
/// Mapping generated.
/// </returns>
private static int[][] GetBackslashMapping()
{
if (ToastDemTileCreator.backslashMapping == null)
{
lock (token)
{
ToastDemTileCreator.backslashMapping = ToastDemTileCreator.GenerateMapping(backslashVerticesX, backslashVerticesY);
}
}
return(ToastDemTileCreator.backslashMapping);
}
public void InvalidateDEMToastCreatorUsingNullElevation()
{
// Get Values from XML File
string expectedError = utilityObj.XmlUtil.GetTextValue(Constants.MercDemSerializerTestNode, Constants.ExpectedErrorNode);
string destinationPath = Path.Combine(Environment.CurrentDirectory, fileTemplate);
DemTileSerializer demTileSerializer = new DemTileSerializer(destinationPath);
ToastDemTileCreator merc = null;
try
{
merc = new ToastDemTileCreator(null, demTileSerializer);
Assert.Fail();
}
catch (ArgumentNullException ex)
{
string message = ex.Message;
Assert.IsNull(merc);
Assert.AreEqual(expectedError, message.Replace("\r", string.Empty).Replace("\n", string.Empty));
}
}
