public Stream GenerateSingleImage(string strServerType, string strServer, string strLayer, string strBBox, double dMinX, double dMinY, double dMaxX, double dMaxY)
{
strServerType = HttpUtility.UrlDecode(strServerType);
strServer = HttpUtility.UrlDecode(strServer);
strLayer = HttpUtility.UrlDecode(strLayer);
BoundingBox oViewBounds;
BoundingBox oLayerBounds = new BoundingBox(dMaxX, dMaxY, dMinX, dMinY);
System.Diagnostics.Debug.Assert(oLayerBounds.MaxX >= oLayerBounds.MinX);
System.Diagnostics.Debug.Assert(oLayerBounds.MaxY >= oLayerBounds.MinY);
LayerInfo oLayer = new LayerInfo(strServerType, strServer, strLayer);
#region // Input checking
oViewBounds = ParseBBoxToken(strBBox);
if (oViewBounds == null)
{
ReportStatusCode(HttpStatusCode.BadRequest);
return null;
}
System.Diagnostics.Debug.Assert(oViewBounds.MaxX >= oViewBounds.MinX);
System.Diagnostics.Debug.Assert(oViewBounds.MaxY >= oViewBounds.MinY);
#endregion
byte[] oImage = oLayer.GetCompositeImage(oLayerBounds, oViewBounds);
if (oImage != null)
{
return new MemoryStream(oImage);
}
else
{
ReportStatusCode(HttpStatusCode.NotFound);
return null;
}
}
public Stream GetCachedImageTile(string strServerType, string strServer, string strLayer, int iLevel, int iCol, int iRow)
{
strServerType = HttpUtility.UrlDecode(strServerType);
strServer = HttpUtility.UrlDecode(strServer);
strLayer = HttpUtility.UrlDecode(strLayer);
TileInfo oTile = new TileInfo(iLevel, iCol, iRow);
LayerInfo oLayer = new LayerInfo(strServerType, strServer, strLayer);
#region // Input checking
if (String.IsNullOrEmpty(strServerType) ||
String.IsNullOrEmpty(strServer) ||
String.IsNullOrEmpty(strLayer))
{
ReportStatusCode(HttpStatusCode.BadRequest);
return null;
}
#endregion
byte[] oImage = oLayer.GetTileImage(oTile);
if (oImage != null)
{
return new MemoryStream(oImage);
}
else
{
ReportStatusCode(HttpStatusCode.NotFound);
return null;
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="oLayer">The layer of this download.</param>
/// <param name="oTile">The tile to download.</param>
public DownloadInfo(LayerInfo oLayer, TileInfo oTile)
{
m_oLayer = oLayer;
m_oTile = oTile;
}