private Vector3[,] GeneratePositionsArray(LocalTexture worldPosition1Texture, LocalTexture worldPosition2Texture)
{
var imageSize = new IntVector2(worldPosition1Texture.Width, worldPosition1Texture.Height);
var outArray = new Vector3[imageSize.X, imageSize.Y];
Parallel.For(0, imageSize.X, x =>
//for (int x = 0; x < imageSize.X; x++)
{
for (int y = 0; y < imageSize.Y; y++)
{
var p1 = worldPosition1Texture.GetPixel(x, y);
var p2 = worldPosition2Texture.GetPixel(x, y);
var positionX = ToFloat(p1[0], p1[1], _maxPosition);
var positionY = ToFloat(p1[2], p1[3], _maxPosition);
var positionZ = ToFloat(p2[0], p2[1], _maxPosition);
//CheckForOverfloat(p1[0], p1[1]);
//CheckForOverfloat(p1[2], p1[3]);
//CheckForOverfloat(p2[0], p2[1]);
outArray[x, y] = new Vector3(positionX, positionY, positionZ);
}
});
return(outArray);
}
private bool[,] OldGenerateLocalMaximaArray(LocalTexture mainTexture, float[,] distancesArray)
{
float EPSILON = 0.00001f;
var imageSize = new IntVector2(mainTexture.Width, mainTexture.Height);
var outArray = new bool[imageSize.X, imageSize.Y];
Parallel.For(0, imageSize.X, x =>
//for (int x = 0; x < imageSize.X; x++)
{
for (int y = 0; y < imageSize.Y; y++)
{
var centerPixelDistance = distancesArray[x, y];
var centerPixel = mainTexture.GetPixel(x, y);
if (!GaugeUtils.PixelLiesOverShapeAndHatch(centerPixel))
{
outArray[x, y] = false;
}
else
{
float maximalDistance = float.MinValue;
int biggerPixelsCount = 0;
int allPixelsCount = 0;
for (int ix = Math.Max(0, x - _localMaximaWindowSize.X / 2); ix < Math.Min(imageSize.X, x + _localMaximaWindowSize.X / 2); ix++)
{
for (int iy = Math.Max(0, y - _localMaximaWindowSize.Y / 2); iy < Math.Min(imageSize.Y, y + _localMaximaWindowSize.Y / 2); iy++)
{
allPixelsCount++;
var d = distancesArray[ix, iy];
if (d > 0)
{
if (centerPixelDistance < d)
{
biggerPixelsCount++;
}
maximalDistance = Mathf.Max(d, maximalDistance);
}
}
}
bool isLocalMaxima = Mathf.Abs(maximalDistance - centerPixelDistance) < EPSILON;
isLocalMaxima = false;
if (((float)biggerPixelsCount) / ((float)allPixelsCount) < 0.1)
{
isLocalMaxima = true;
}
outArray[x, y] = isLocalMaxima;
}
}
});
return(outArray);
}
private float[,] GenerateDistancesArray(LocalTexture mainTexture)
{
var imageSize = new IntVector2(mainTexture.Width, mainTexture.Height);
var outDistanceArray = new float[imageSize.X, imageSize.Y];
Parallel.For(0, imageSize.X, x =>
//for (int x = 0; x < imageSize.X; x++)
{
for (int y = 0; y < imageSize.Y; y++)
{
var centerPixel = mainTexture.GetPixel(x, y);
if (!GaugeUtils.PixelLiesOverShapeAndHatch(centerPixel))
{
outDistanceArray[x, y] = 0f;
}
else
{
float minimalDistance = (_distancesWindowSize.ToFloatVec() * 0.5f).magnitude;
for (int ix = Math.Max(0, x - _distancesWindowSize.X / 2); ix < Math.Min(imageSize.X, x + _distancesWindowSize.X / 2); ix++)
{
for (int iy = Math.Max(0, y - _distancesWindowSize.Y / 2); iy < Math.Min(imageSize.Y, y + _distancesWindowSize.Y / 2); iy++)
{
var p = mainTexture.GetPixel(ix, iy);
if (!GaugeUtils.PixelLiesOverShapeAndHatch(p))
{
var distance = Vector2.Distance(new Vector2(x, y), new Vector2(ix, iy));
minimalDistance = Mathf.Min(distance, minimalDistance);
}
}
}
outDistanceArray[x, y] = minimalDistance;
}
}
});
return(outDistanceArray);
}
public static bool[,] GenerateHatchOccurenceArray(LocalTexture mainTexture)
{
var imageSize = new IntVector2(mainTexture.Width, mainTexture.Height);
var outArray = new bool[imageSize.X, imageSize.Y];
Parallel.For(0, imageSize.X, x =>
//for (int x = 0; x < imageSize.X; x++)
{
for (int y = 0; y < imageSize.Y; y++)
{
outArray[x, y] = GaugeUtils.PixelLiesOverShapeAndHatch(mainTexture.GetPixel(x, y));
}
});
//var xc = Enumerable.Range(0, outArray.GetLength(0))
// .Any(x => Enumerable.Range(0, outArray.GetLength(1)).Any(y => outArray[x, y]));
return(outArray);
}
public static uint[,] GenerateIdArray(LocalTexture idTexture)
{
var imageSize = new IntVector2(idTexture.Width, idTexture.Height);
var outIdArray = new uint[imageSize.X, imageSize.Y];
Parallel.For(0, imageSize.X, x =>
//for (int x = 0; x < imageSize.X; x++)
{
for (int y = 0; y < imageSize.Y; y++)
{
outIdArray[x, y] = GaugeUtils.RetriveId(idTexture.GetPixel(x, y));
}
});
//var xc = Enumerable.Range(0, outIdArray.GetLength(0))
// .Any(x => Enumerable.Range(0, outIdArray.GetLength(1)).Any(y => outArray[x, y]));
return(outIdArray);
}
private Dictionary <uint, List <float> > GeneratePixelCountsDict(LocalTexture hatchMainTexture, bool[,] occurenceArray, uint[,] idsArray)
{
var imageSize = new IntVector2(hatchMainTexture.Width, hatchMainTexture.Height);
var strokesDict = new Dictionary <uint, List <float> >();
for (int x = 0; x < imageSize.X; x++)
{
for (int y = 0; y < imageSize.Y; y++)
{
var tParam = hatchMainTexture.GetPixel(x, y).b;
var id = idsArray[x, y];
if (occurenceArray[x, y] && id != 0)
{
if (!strokesDict.ContainsKey(id))
{
strokesDict[id] = new List <float>();
}
strokesDict[id].Add(tParam);
}
}
}
return(strokesDict);
}
private Dictionary <uint, List <LinesLayoutSample> > GenerateSamplesDict(Vector3[,] positionsArray, uint[,] idArray, LocalTexture hatchMainTexture,
bool[,] occurenceArray)
{
var imageSize = new IntVector2(hatchMainTexture.Width, hatchMainTexture.Height);
return(Enumerable.Range(0, imageSize.X).AsParallel().SelectMany(x =>
{
return Enumerable.Range(0, imageSize.Y).Select(y =>
{
var tParam = hatchMainTexture.GetPixel(x, y).b;
var id = idArray[x, y];
if (id != 0 && occurenceArray[x, y])
{
var worldSpacePosition = positionsArray[x, y];
return new LinesLayoutSampleWithId()
{
Id = id,
Sample = new LinesLayoutSample()
{
TParam = tParam,
WorldSpacePosition = worldSpacePosition
}
};
}
else
{
return new LinesLayoutSampleWithId()
{
Id = 0,
Sample = null
};
}
});
})
.Where(c => c.Sample != null)
.GroupBy(c => c.Id)
.ToDictionary(c => c.Key, c => c.Select(r => r.Sample).ToList()));
//var outDict = new Dictionary<int, List<LinesLayoutSample>>();
//for (int x = 0; x < imageSize.X; x++)
//{
// for (int y = 0; y < imageSize.Y; y++)
// {
// var tParam = hatchIdTexture.GetPixel(x, y).b;
// var id = idArray[x, y];
// if (id != 0 && occurenceArray[x,y])
// {
// var worldSpacePosition = positionsArray[x, y];
// if (!outDict.ContainsKey(id))
// {
// outDict[id] = new List<LinesLayoutSample>();
// }
// outDict[id].Add(new LinesLayoutSample()
// {
// TParam = tParam,
// WorldSpacePosition = worldSpacePosition
// });
// }
// }
//}
//return outDict;
}