// Takes a contour and draws its silhouette
public Silhouette DrawSilhouette(Contour contour)
{
Silhouette silhouette = new Silhouette(contour.Color);
int pixelCount = 0;
ContourPixel dummyPixel = new ContourPixel
{
IsDummy = true
};
int sX, sY, nX, nY;
ContourPixel startPixel = FindNextStartPixel(contour, dummyPixel);
ContourPixel nextPixel = startPixel;
bool started;
//try
//{
while (startPixel != null && pixelCount != contour.NumberOfPixels)
{
started = false;
// Add the first pixel of the new silhouette piece
SilhouettePiece silhouettePiece = new SilhouettePiece();
silhouettePiece.Points.AddFirst(startPixel);
sX = startPixel.XCoord;
sY = startPixel.YCoord;
nX = startPixel.XCoord;
nY = startPixel.YCoord;
// Check if outside window
//---------------------------------------------------------------------------------------------
if (VectorUtils.AdjustIteration(contour, nX, nY) == "go-left-or-right")
{
//Debug.Log("Over eller under");
if ((contour.Pixels[nX - 1, nY] != null) && !contour.Pixels[nX - 1, nY].Visited)
{
nX = nX - 1;
}
else if ((contour.Pixels[nX + 1, nY] != null) && !contour.Pixels[nX + 1, nY].Visited)
{
nX = nX + 1;
}
}
else if (VectorUtils.AdjustIteration(contour, nX, nY) == "go-up-or-right")
{
//Debug.Log("Venstre");
if ((contour.Pixels[nX, nY + 1] != null) && !contour.Pixels[nX, nY + 1].Visited)
{
nY = nY + 1;
}
else if ((contour.Pixels[nX + 1, nY] != null) && !contour.Pixels[nX + 1, nY].Visited)
{
nX = nX + 1;
}
}
else if (VectorUtils.AdjustIteration(contour, nX, nY) == "go-up-or-left")
{
//Debug.Log("Høyre");
if ((contour.Pixels[nX, nY + 1] != null) && !contour.Pixels[nX, nY + 1].Visited)
{
nY = nY + 1;
}
else if ((contour.Pixels[nX - 1, nY] != null) && !contour.Pixels[nX - 1, nY].Visited)
{
nX = nX - 1;
}
}
//---------------------------------------------------------------------------------------------
while (VectorUtils.MoreToDraw(contour, nX, nY) && (!(nX == sX && nY == sY) || !started))
{
//previousPixel = nextPixel;
nextPixel = StepToNextPixel(contour, nX, nY, nextPixel);
nX = nextPixel.XCoord;
nY = nextPixel.YCoord;
pixelCount++;
silhouettePiece.Points.AddLast(nextPixel);
started = true;
}
startPixel = FindNextStartPixel(contour, startPixel);
silhouette.Pieces.Add(silhouettePiece);
}
/*} catch (Exception e)
* {
* return silhouettes;
* }*/
return(silhouette);
}