private void SetHoughCirclePoints(int cx, int cy, int x, int y)
{
if (x == 0)
{
SetHoughPoint(cx, cy + y);
SetHoughPoint(cx, cy - y);
SetHoughPoint(cx + y, cy);
SetHoughPoint(cx - y, cy);
}
else if (x == y)
{
SetHoughPoint(cx + x, cy + y);
SetHoughPoint(cx - x, cy + y);
SetHoughPoint(cx + x, cy - y);
SetHoughPoint(cx - x, cy - y);
}
else if (x < y)
{
SetHoughPoint(cx + x, cy + y);
SetHoughPoint(cx - x, cy + y);
SetHoughPoint(cx + x, cy - y);
SetHoughPoint(cx - x, cy - y);
SetHoughPoint(cx + y, cy + x);
SetHoughPoint(cx - y, cy + x);
SetHoughPoint(cx + y, cy - x);
SetHoughPoint(cx - y, cy - x);
}
}