public static void UpdateEdge(PPath edge)
{
// Note that the node's "FullBounds" must be used (instead of just the "Bound")
// because the nodes have non-identity transforms which must be included when
// determining their position.
ArrayList nodes = (ArrayList)edge.Tag;
PNode node1 = (PNode)nodes[0];
PNode node2 = (PNode)nodes[1];
PointF start = node1.GlobalBounds.Location;
PointF end = node2.GlobalBounds.Location;
float h1x, h1y, h2x;
if (nodes.Count > 2 && (int)nodes[2] == -1) //var link
{
start.X += node1.GlobalBounds.Width * 0.5f;
start.Y += node1.GlobalBounds.Height;
h1x = h2x = 0;
h1y = end.Y > start.Y ? 200 * (float)Math.Log10((end.Y - start.Y) / 200 + 1) : 200 * (float)Math.Log10((start.Y - end.Y) / 100 + 1);
end.X += node2.GlobalBounds.Width / 2;
end.Y += node2.GlobalBounds.Height / 2;
}
else
{
start.X += node1.GlobalBounds.Width;
start.Y += node1.GlobalBounds.Height * 0.5f;
end.Y += node2.GlobalBounds.Height * 0.5f;
h1x = h2x = end.X > start.X ? 200 * (float)Math.Log10((end.X - start.X) / 200 + 1) : 200 * (float)Math.Log10((start.X - end.X) / 100 + 1);
h1y = 0;
}
edge.Reset();
//edge.AddLine(start.X, start.Y, end.X, end.Y);
edge.AddBezier(start.X, start.Y, start.X + h1x, start.Y + h1y, end.X - h2x, end.Y, end.X, end.Y);
}