protected override void OnPaint(PaintEventArgs e)
{
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
base.OnPaint(e);
if (_geometryGraph == null)
{
_geometryGraph = CreateAndLayoutGraph();
}
DrawingUtilsForSamples.DrawFromGraph(ClientRectangle, _geometryGraph, e.Graphics);
}
internal static GeometryGraph CreateAndLayoutGraph()
{
double w = 40;
double h = 10;
GeometryGraph graph = new GeometryGraph();
// columns
var col0 = new[] { "a", "b", "c" };
var col1 = new[] { "d", "e", "f", "g" };
var col2 = new[] { "k", "l", "m", "n" };
var col3 = new[] { "w", "y", "z" };
var settings = new SugiyamaLayoutSettings();
foreach (var id in col0)
{
DrawingUtilsForSamples.AddNode(id, graph, w, h);
}
foreach (var id in col1)
{
DrawingUtilsForSamples.AddNode(id, graph, w, h);
}
foreach (var id in col2)
{
DrawingUtilsForSamples.AddNode(id, graph, w, h);
}
foreach (var id in col3)
{
DrawingUtilsForSamples.AddNode(id, graph, w, h);
}
//pinning columns
settings.PinNodesToSameLayer(col0.Select(s => graph.FindNodeByUserData(s)).ToArray());
settings.PinNodesToSameLayer(col1.Select(s => graph.FindNodeByUserData(s)).ToArray());
settings.PinNodesToSameLayer(col2.Select(s => graph.FindNodeByUserData(s)).ToArray());
settings.PinNodesToSameLayer(col3.Select(s => graph.FindNodeByUserData(s)).ToArray());
AddEdgesBetweenColumns(col0, col1, graph);
AddEdgesBetweenColumns(col1, col2, graph);
AddEdgesBetweenColumns(col2, col3, graph);
// rotate layer to columns
settings.Transformation = PlaneTransformation.Rotation(Math.PI / 2);
settings.NodeSeparation = 5;
settings.LayerSeparation = 100;
var ll = new LayeredLayout(graph, settings);
ll.Run();
return(graph);
}
static internal GeometryGraph CreateAndLayoutGraph()
{
GeometryGraph graph = new GeometryGraph();
double width = 40;
double height = 10;
foreach (string id in "0 1 2 3 4 5 6 A B C D E F G a b c d e".Split(' '))
{
DrawingUtilsForSamples.AddNode(id, graph, width, height);
}
graph.Edges.Add(new Edge(graph.FindNodeByUserData("A"), graph.FindNodeByUserData("B")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("A"), graph.FindNodeByUserData("C")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("A"), graph.FindNodeByUserData("D")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("D"), graph.FindNodeByUserData("E")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("B"), graph.FindNodeByUserData("E")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("D"), graph.FindNodeByUserData("F")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("0"), graph.FindNodeByUserData("F")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("1"), graph.FindNodeByUserData("F")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("2"), graph.FindNodeByUserData("F")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("3"), graph.FindNodeByUserData("F")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("4"), graph.FindNodeByUserData("F")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("5"), graph.FindNodeByUserData("F")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("6"), graph.FindNodeByUserData("F")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("a"), graph.FindNodeByUserData("b")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("b"), graph.FindNodeByUserData("c")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("c"), graph.FindNodeByUserData("d")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("d"), graph.FindNodeByUserData("e")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("A"), graph.FindNodeByUserData("a")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("B"), graph.FindNodeByUserData("a")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("C"), graph.FindNodeByUserData("a")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("D"), graph.FindNodeByUserData("a")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("E"), graph.FindNodeByUserData("a")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("F"), graph.FindNodeByUserData("a")));
graph.Edges.Add(new Edge(graph.FindNodeByUserData("G"), graph.FindNodeByUserData("a")));
var settings = new SugiyamaLayoutSettings {
Transformation = PlaneTransformation.Rotation(Math.PI / 2),
EdgeRoutingSettings = { EdgeRoutingMode = EdgeRoutingMode.Spline }
};
var layout = new LayeredLayout(graph, settings);
layout.Run();
return(graph);
}
private void Graph_Drawn(object sender, DrawnArgs args)
{
var context = args.Cr;
DrawingUtilsForSamples.DrawFromGraph(new Cairo.Rectangle(0, 0, width, height), graph, args.Cr);
}
internal static GeometryGraph CreateAndLayoutGraph()
{
PhyloTree phyloTree = new PhyloTree();
double width = 40;
double height = 10;
foreach (string id in "A B C D E F G".Split(' '))
{
DrawingUtilsForSamples.AddNode(id, phyloTree, width, height);
}
PhyloEdge e;
double age_of_BC = 2;
double age_of_D = 3.5;
double age_of_F = 1.5;
double age_of_G = 3.5;
double age_of_E = 2;
phyloTree.Edges.Add(e = new PhyloEdge(phyloTree.FindNodeByUserData("A"), phyloTree.FindNodeByUserData("B")));
e.Length = age_of_BC;
phyloTree.Edges.Add(e = new PhyloEdge(phyloTree.FindNodeByUserData("A"), phyloTree.FindNodeByUserData("C")));
e.Length = age_of_BC;
phyloTree.Edges.Add(e = new PhyloEdge(phyloTree.FindNodeByUserData("A"), phyloTree.FindNodeByUserData("D")));
e.Length = age_of_D;
phyloTree.Edges.Add(e = new PhyloEdge(phyloTree.FindNodeByUserData("C"), phyloTree.FindNodeByUserData("E")));
e.Length = age_of_E;
phyloTree.Edges.Add(e = new PhyloEdge(phyloTree.FindNodeByUserData("C"), phyloTree.FindNodeByUserData("F")));
e.Length = age_of_F;
phyloTree.Edges.Add(e = new PhyloEdge(phyloTree.FindNodeByUserData("C"), phyloTree.FindNodeByUserData("G")));
e.Length = age_of_G;
var sugiyamaLayoutSettings = new SugiyamaLayoutSettings();
foreach (var edge in phyloTree.Edges)
{
edge.EdgeGeometry.TargetArrowhead = new Arrowhead();
}
Microsoft.Msagl.Miscellaneous.LayoutHelpers.CalculateLayout(phyloTree, new SugiyamaLayoutSettings(), null);
// add a couple of non-tree edges
Edge e0 = new Edge(phyloTree.FindNodeByUserData("F"), phyloTree.FindNodeByUserData("D"))
{
EdgeGeometry = { SourceArrowhead = new Arrowhead() }
};
phyloTree.Edges.Add(e0);
Edge e1 = new Edge(phyloTree.FindNodeByUserData("G"), phyloTree.FindNodeByUserData("D"))
{
EdgeGeometry = { SourceArrowhead = new Arrowhead() }
};
phyloTree.Edges.Add(e1);
// route the non-tree edges, every other edge is routed already
double loosePadding = sugiyamaLayoutSettings.NodeSeparation / 10;
double tightPadding = sugiyamaLayoutSettings.NodeSeparation / 10;
double coneAngle = Math.PI / 6;
var router = new SplineRouter(phyloTree, new[] { e0, e1 }, tightPadding, loosePadding, coneAngle, null);
router.Run();
return(phyloTree);
}
