public ActiveEdgeTableEntry(ActiveEdgeTableEntry aete)
{
yMax = aete.yMax;
yMin = aete.yMin;
xOfMax = aete.xOfMax;
xOfMin = aete.xOfMin + aete.mInv;
mInv = aete.mInv;
}
public List <ColorPoint> FillPoints(Rectangle boundingRect = null)
{
if (this.points != null && boundingRect == null)
{
return(this.points);
}
prePoints = new List <Point>();
int k = 0;
int i = indicies[k].Key;
int y, ymin;
y = ymin = vertices[indicies[0].Key].Y;
int ymax = vertices[indicies[indicies.Count - 1].Key].Y;
int len = vertices.Count;
while (y < ymax)
{
while (vertices[i].Y == y)
{
if (vertices[(i - 1 + len) % len].Y > vertices[i].Y)
{
AET.Add(new ActiveEdgeTableEntry(vertices[i], vertices[(i - 1 + len) % len]));
}
if (vertices[(i + 1) % len].Y > vertices[i].Y)
{
AET.Add(new ActiveEdgeTableEntry(vertices[i], vertices[(i + 1) % len]));
}
i = indicies[++k].Key;
}
AET.Sort(delegate(ActiveEdgeTableEntry e1, ActiveEdgeTableEntry e2)
{
return(e1.xOfMin.CompareTo(e2.xOfMin));
});
for (int t = 0; t < AET.Count; t += 2)
{
for (int x1 = (int)AET[t].xOfMin; x1 <= AET[(t + 1) % AET.Count].xOfMin; x1++)
{
if (boundingRect != null && (x1 > boundingRect.GetCorner(1).X || x1 < boundingRect.GetCorner(0).X || y > boundingRect.GetCorner(0).Y || y < boundingRect.GetCorner(2).Y))
{
continue;
}
prePoints.Add(new Point(x1, y));
}
}
++y;
for (int t = 0; t < AET.Count; t++)
{
AET[t] = new ActiveEdgeTableEntry(AET[t]);
if (AET[t].yMax == y)
{
AET.RemoveAt(t--);
}
}
}
points = new List <ColorPoint>();
if (fillColor.HasValue)
{
foreach (var p in prePoints)
{
points.Add(new ColorPoint(fillColor.Value, p));
}
}
else
{
foreach (var kv in fillImage.GetPixels(prePoints, true))
{
points.Add(new ColorPoint(kv.Value, kv.Key));
}
}
return(points);
}