Stream GetCSewFigSeg(List <List <Coords> > blocks)
{
Stream stream = new MemoryStream();
stitchBlock currentBlock;
int StitchesCount = blocks.Sum(block => block.Count);
currentBlock = new stitchBlock();
stream.Write(GetCSegSewName(), 0, 7);
// write prefix
// (color start indicator) (all color changes have the same value for this field;
// if the value here is not the same as the first block, it's not a color change)
//(color index)
//(number of stitches in this block)
stream.Write(GetColorInfo(), 0, 4);
stream.WriteAsUInt16(StitchesCount);
foreach (Coords stitchPoint in blocks.SelectMany(stitch => stitch))
{
stream.WritePesCoords(ShiftCoords(stitchPoint, _designXOffset, _designYOffset));
}
stream.Write(GetColorTable(), 0, 10);
return(stream);
}
List <stitchBlock> filterStitches(List <stitchBlock> input, int threshold)
{
List <stitchBlock> retval = new List <stitchBlock>();
List <Point> tempStitchData = new List <Point>();
for (int x = 0; x < input.Count; x++)
{
for (int i = 0; i < input[x].stitches.Length; i++)
{
if (i > 0)//need a previous point to check against, can't check the first
{
double diffx = Math.Abs(input[x].stitches[i].X - input[x].stitches[i - 1].X);
double diffy = Math.Abs(input[x].stitches[i].Y - input[x].stitches[i - 1].Y);
if (Math.Sqrt(Math.Pow(diffx, 2.0) + Math.Pow(diffy, 2.0)) < threshold) //check distance between this point and the last one
{
if (tempStitchData.Count == 0 && i > 1) //first stitch of block gets left out without this, except for very first stitch
{
tempStitchData.Add(input[x].stitches[i - 1]);
}
tempStitchData.Add(input[x].stitches[i]);
}
else//stitch is too far from the previous one
{
if (tempStitchData.Count > 2)//add the block and start a new one
{
stitchBlock tempBlock = new stitchBlock();
tempBlock.color = input[x].color;
tempBlock.colorIndex = input[x].colorIndex;
tempBlock.stitches = new Point[tempStitchData.Count];
tempStitchData.CopyTo(tempBlock.stitches);
retval.Add(tempBlock);
tempStitchData = new List <Point>();
}
else//reset variables
{
tempStitchData = new List <Point>();
}
}
}
else //just add the first one, don't have anything to compare against
{
tempStitchData.Add(input[x].stitches[i]);
}
}
if (tempStitchData.Count > 2)
{
stitchBlock tempBlock = new stitchBlock();
tempBlock.color = input[x].color;
tempBlock.colorIndex = input[x].colorIndex;
tempBlock.stitches = new Point[tempStitchData.Count];
tempStitchData.CopyTo(tempBlock.stitches);
retval.Add(tempBlock);
tempStitchData = new List <Point>();
}
}
return(retval);
}
