private static BoundingBox CalculateExtent(TiffProperties tiffProperties, WorldProperties worldProperties)
{
var minX = worldProperties.XCenterOfUpperLeftPixel - worldProperties.PixelSizeX * 0.5;
var maxX = minX + worldProperties.PixelSizeX * tiffProperties.Width + worldProperties.PixelSizeX * 0.5;
var maxY = worldProperties.YCenterOfUpperLeftPixel + worldProperties.PixelSizeY * 0.5;
var minY = maxY + worldProperties.PixelSizeY * tiffProperties.Height - worldProperties.PixelSizeY * 0.5;
return new BoundingBox(minX, minY, maxX, maxY);
}
private static BoundingBox CalculateExtent(TiffProperties tiffProperties, WorldProperties worldProperties)
{
var minX = worldProperties.XCenterOfUpperLeftPixel - worldProperties.PixelSizeX * 0.5;
var maxX = minX + worldProperties.PixelSizeX * tiffProperties.Width + worldProperties.PixelSizeX * 0.5;
var maxY = worldProperties.YCenterOfUpperLeftPixel + worldProperties.PixelSizeY * 0.5;
var minY = maxY + worldProperties.PixelSizeY * tiffProperties.Height - worldProperties.PixelSizeY * 0.5;
return(new BoundingBox(minX, minY, maxX, maxY));
}
public GeoTiffProvider(string tiffPath, List <Color> noDataColors = null)
{
MemoryStream data;
if (!File.Exists(tiffPath))
{
throw new ArgumentException(string.Format("Tiff file expected at {0}", tiffPath));
}
string worldPath = GetPathWithoutExtension(tiffPath) + WorldExtention;
if (!File.Exists(worldPath))
{
throw new ArgumentException(string.Format("World file expected at {0}", worldPath));
}
TiffProperties tiffProperties = LoadTiff(tiffPath);
WorldProperties worldProperties = LoadWorld(worldPath);
_extent = CalculateExtent(tiffProperties, worldProperties);
try
{
try
{
data = ReadImageAsStream(tiffPath, noDataColors);
}
catch (OutOfMemoryException e)
{
throw new OutOfMemoryException("Out of memory", e.InnerException);
}
}
catch (ExternalException e)
{
throw new ExternalException(e.Message, e.InnerException);
}
_feature = new Feature {
Geometry = new Raster(data, _extent)
};
_feature.Styles.Add(new VectorStyle());
}
public GeoTiffProvider(string tiffPath, List<Color> noDataColors = null)
{
if (!File.Exists(tiffPath))
{
throw new ArgumentException(string.Format("Tiff file expected at {0}", tiffPath));
}
worldPath = GetPathWithoutExtension(tiffPath) + WorldExtention;
if (!File.Exists(worldPath))
{
throw new ArgumentException(string.Format("World file expected at {0}", worldPath));
}
tiffProperties = LoadTiff(tiffPath);
worldProperties = LoadWorld(worldPath);
extent = CalculateExtent(tiffProperties, worldProperties);
try
{
try
{
data = ReadImageAsStream(tiffPath, noDataColors);
}
catch (OutOfMemoryException e)
{
throw new OutOfMemoryException("Out of memory", e.InnerException);
}
}
catch (ExternalException e)
{
throw new ExternalException(e.Message, e.InnerException);
}
feature = new Feature { Geometry = new Raster(data, extent) };
feature.Styles.Add(new VectorStyle());
}
