private static void DrawSOMTile_Gray(SelfOrganizingMapsWPF.DrawTileArgs e, double[] source)
{
//NOTE: Copied from UtilityWPF.GetBitmap
for (int y = 0; y < e.TileHeight; y++)
{
int offsetImageY = (e.ImageY + y) * e.Stride;
int offsetSourceY = y * e.TileWidth;
for (int x = 0; x < e.TileWidth; x++)
{
int indexImage = offsetImageY + ((e.ImageX + x) * e.PixelWidth);
byte gray = (source[offsetSourceY + x] * 255).ToByte_Round();
e.BitmapPixelBytes[indexImage + 3] = 255;
e.BitmapPixelBytes[indexImage + 2] = gray;
e.BitmapPixelBytes[indexImage + 1] = gray;
e.BitmapPixelBytes[indexImage + 0] = gray;
}
}
}
private static void DrawSOMTile(SelfOrganizingMapsWPF.DrawTileArgs e)
{
SOMInput<SOMList.SOMItem> cast = e.Tile as SOMInput<SOMList.SOMItem>;
if (cast == null)
{
throw new InvalidCastException("Expected SOMInput<SOMList.SOMItem>: " + e.Tile == null ? "<null>" : e.Tile.GetType().ToString());
}
else if (cast.Source == null)
{
throw new ApplicationException("cast.Source is null");
}
else if (cast.Source.Original == null)
{
throw new ApplicationException("The original image shouldn't be null");
}
if (cast.Source.Original.Length == e.TileWidth * e.TileHeight)
{
DrawSOMTile_Gray(e, cast.Source.Original);
}
else if (cast.Source.Original.Length == e.TileWidth * e.TileHeight * 3)
{
DrawSOMTile_Color(e, cast.Source.Original);
}
else
{
throw new ApplicationException("The original image isn't the expected size");
}
}
