public void Execute(LayoutEngine target)
{
var boundsWidth = (int)Bounds.Width;
var boundsHeight = (int)Bounds.Height;
var seed = Seed;
var rnd = new Random(seed);
foreach (var item in target.Nodes)
{
if (item.Control.HasValidLayout)
{
continue;
}
var x = (int)Bounds.X;
var y = (int)Bounds.Y;
item.Position = new Point(rnd.Next(x, x + boundsWidth - 45), rnd.Next(y, y + boundsHeight - 45));
}
}
public void Execute(LayoutEngine target)
{
var perimeter = 0.0;
var usableNodes = target.Nodes;
var halfSize = new double[usableNodes.Length];
var i = 0;
foreach (var s in usableNodes.Select(v => new Size(45.0, 45.0)))
{
halfSize[i] = Math.Sqrt(s.Width * s.Width + s.Height * s.Height) * 0.5;
perimeter += halfSize[i] * 2;
i++;
}
var radius = perimeter / (2 * Math.PI);
var angle = 0.0;
double a;
i = 0;
foreach (var v in usableNodes)
{
a = Math.Sin(halfSize[i] * 0.5 / radius) * 2;
angle += a;
v.Position = new Point(Math.Cos(angle) * radius + radius, Math.Sin(angle) * radius + radius);
angle += a;
}
radius = angle / (2 * Math.PI) * radius;
angle = 0;
i = 0;
foreach (var v in usableNodes)
{
a = Math.Sin(halfSize[i] * 0.5 / radius) * 2;
angle += a;
v.Position =
new Point(Math.Cos(angle) * radius + radius, Math.Sin(angle) * radius + radius);
angle += a;
}
}
public void Assign(LayoutEngine layout)
{
_sourceIndex ??= layout.Nodes.Single(x => x.Control == Control.Source).Index;
_targetIndex ??= layout.Nodes.Single(x => x.Control == Control.Target).Index;
}
public void Assign(LayoutEngine layout)
{
_incomingEdges ??= layout.Edges.Where(x => x.TargetIndex == Index).Select(x => x.Index).ToArray();
_outgoingEdges ??= layout.Edges.Where(x => x.SourceIndex == Index).Select(x => x.Index).ToArray();
}