public static WangTile[] WangTile(WangTile[] wangTiles, Size wangTileSize,
Bitmap[] sourceBitmaps, int sourceBitmapBorderWidth,
int maxAttempts,
long maximumMatchingError,
bool onePixelOverlapBetweenTiles)
{
Size sampleTileSize = new Size(wangTileSize.Width*3/2 + (onePixelOverlapBetweenTiles ? 1 : 0),
wangTileSize.Height*3/2 + (onePixelOverlapBetweenTiles ? 1 : 0));
// determine the number of Sample Portions you'll need
int numSamplePortions = 0;
foreach (WangTile wt in wangTiles) numSamplePortions = Math.Max(numSamplePortions, wt.MaxColorNumber);
numSamplePortions++;
int numAttempts = 0;
int numSourceBitmaps = sourceBitmaps.Length;
WangTileSpecification bestSpecification = null;
// while you haven't found an appropriate wang tiling..
while (numAttempts < maxAttempts && (bestSpecification == null || bestSpecification.MatchingError > maximumMatchingError) )
{
Util.Spew("Generating Wang Tiles, attempt " + (numAttempts+1) + " of a maximum " + maxAttempts+"...");
Application.DoEvents();
WangTileSpecification wts = new WangTileSpecification(wangTiles, sourceBitmaps, onePixelOverlapBetweenTiles);
numAttempts ++;
wts.WangTileSize = wangTileSize;
wts.SamplePortions = new Rectangle[numSourceBitmaps, numSamplePortions];
// Randomly select new sample portions from each bitmap.
for (int bmp = 0; bmp < numSourceBitmaps; bmp++)
{
int maxX = sourceBitmaps[bmp].Width - sampleTileSize.Width - (2*sourceBitmapBorderWidth);
int maxY = sourceBitmaps[bmp].Height - sampleTileSize.Height - (2*sourceBitmapBorderWidth);
for (int i = 0; i < numSamplePortions; i++)
{
wts.SamplePortions[bmp, i] = new Rectangle(new Point(sourceBitmapBorderWidth+r.Next(maxX), sourceBitmapBorderWidth+r.Next(maxY)), sampleTileSize);
}
}
wts.RecalcScanLines();
if (bestSpecification == null || wts.MatchingError < bestSpecification.MatchingError)
{
bestSpecification = wts;
}
}
Util.Spew("Synthesizing bitmaps for best Wang Tile specification...");
Application.DoEvents();
bestSpecification.SynthesizeBitmaps();
Util.Spew("Finished generating Wang Tiles.");
Application.DoEvents();
return bestSpecification.WangTiles;
}
public static WangTile[] WangTile(WangTile[] wangTiles, Size wangTileSize,
Bitmap[] sourceBitmaps, int sourceBitmapBorderWidth,
int maxAttempts,
long maximumMatchingError,
bool onePixelOverlapBetweenTiles)
{
Size sampleTileSize = new Size(wangTileSize.Width * 3 / 2 + (onePixelOverlapBetweenTiles ? 1 : 0),
wangTileSize.Height * 3 / 2 + (onePixelOverlapBetweenTiles ? 1 : 0));
// determine the number of Sample Portions you'll need
int numSamplePortions = 0;
foreach (WangTile wt in wangTiles)
{
numSamplePortions = Math.Max(numSamplePortions, wt.MaxColorNumber);
}
numSamplePortions++;
int numAttempts = 0;
int numSourceBitmaps = sourceBitmaps.Length;
WangTileSpecification bestSpecification = null;
// while you haven't found an appropriate wang tiling..
while (numAttempts < maxAttempts && (bestSpecification == null || bestSpecification.MatchingError > maximumMatchingError))
{
Util.Spew("Generating Wang Tiles, attempt " + (numAttempts + 1) + " of a maximum " + maxAttempts + "...");
Application.DoEvents();
WangTileSpecification wts = new WangTileSpecification(wangTiles, sourceBitmaps, onePixelOverlapBetweenTiles);
numAttempts++;
wts.WangTileSize = wangTileSize;
wts.SamplePortions = new Rectangle[numSourceBitmaps, numSamplePortions];
// Randomly select new sample portions from each bitmap.
for (int bmp = 0; bmp < numSourceBitmaps; bmp++)
{
int maxX = sourceBitmaps[bmp].Width - sampleTileSize.Width - (2 * sourceBitmapBorderWidth);
int maxY = sourceBitmaps[bmp].Height - sampleTileSize.Height - (2 * sourceBitmapBorderWidth);
for (int i = 0; i < numSamplePortions; i++)
{
wts.SamplePortions[bmp, i] = new Rectangle(new Point(sourceBitmapBorderWidth + r.Next(maxX), sourceBitmapBorderWidth + r.Next(maxY)), sampleTileSize);
}
}
wts.RecalcScanLines();
if (bestSpecification == null || wts.MatchingError < bestSpecification.MatchingError)
{
bestSpecification = wts;
}
}
Util.Spew("Synthesizing bitmaps for best Wang Tile specification...");
Application.DoEvents();
bestSpecification.SynthesizeBitmaps();
Util.Spew("Finished generating Wang Tiles.");
Application.DoEvents();
return(bestSpecification.WangTiles);
}
