private void makeEdgeRec(ref Point lower, ref Point upper, int yComp, ref SortedDoublyLinkedList<CActiveEdge>[] et)
{
var ae = new CActiveEdge
{
ReciSlope = (float)(upper.X - lower.X) / (upper.Y - lower.Y),
XIntersection = lower.X
};
// Make shorter edge
if (upper.Y < yComp)
ae.YUper = upper.Y - 1;
else
ae.YUper = upper.Y;
et[lower.Y].Add(ae);
}
private void FillScan(int line, ref SortedDoublyLinkedList<CActiveEdge> ae, Graphics graph, Pen penline)
{
var points = new CActiveEdge[2];
int i = 0;
foreach (var edge in ae)
{
points[i] = edge;
if (i == 1)
FillLine((int)Math.Round(points[0].XIntersection, 0), (int)Math.Round(points[1].XIntersection, 0), line, graph, penline);
i = (i + 1) % 2;
}
}
