public DiagramGenerator(List <DiagramNode> nodes, List <DiagramNodeConnection> connections, int imageWidth)
{
_nodes = nodes;
_connections = connections;
_simulator = new ForceSimulator();
_simulator.AddForce(new NBodyForce());
_simulator.AddForce(new SpringForce());
_simulator.AddForce(new DragForce());
_imageWidth = imageWidth;
}
/// <summary>
/// Loads the simulator with all relevant force items and springs.
/// </summary>
/// <param name="fsim"> the force simulator driving this layout.</param>
protected void InitializeSimulator(ForceSimulator fsim)
{
//TODO: some checks here...?
float startX = (referrer == null ? 0f : (float)referrer.X);
float startY = (referrer == null ? 0f : (float)referrer.Y);
startX = float.IsNaN(startX) ? 0f : startX;
startY = float.IsNaN(startY) ? 0f : startY;
if (Nodes != null && Nodes.Count > 0)
{
foreach (INode item in Nodes)
{
ForceItem fitem = Pars[item.Uid.ToString()];
fitem.Mass = getMassValue(item);
double x = item.X;
double y = item.Y;
fitem.Location[0] = (Double.IsNaN(x) ? startX : (float)x);
fitem.Location[1] = (Double.IsNaN(y) ? startY : (float)y);
fsim.addItem(fitem);
}
}
if (Edges != null && Edges.Count > 0)
{
foreach (IEdge e in Edges)
{
INode n1 = e.SourceNode;
if (n1 == null)
{
continue;
}
ForceItem f1 = Pars[n1.Uid.ToString()];
INode n2 = e.TargetNode;
if (n2 == null)
{
continue;
}
ForceItem f2 = Pars[n2.Uid.ToString()];
float coeff = getSpringCoefficient(e);
float slen = getSpringLength(e);
fsim.addSpring(f1, f2, (coeff >= 0 ? coeff : -1.0F), (slen >= 0 ? slen : -1.0F));
}
}
}
private bool Init()
{
mEnforceBounds = false;
m_runonce = true;
m_fsim = new ForceSimulator();
m_fsim.AddForce(new NBodyForce());
m_fsim.AddForce(new SpringForce());
m_fsim.AddForce(new DragForce());
this.Graph = this.Model as IGraph;
if (Graph == null)
{
throw new InconsistencyException("The model has not been set and the Graph property is hence 'null'");
}
//Graph.ClearSpanningTree();
//Graph.MakeSpanningTree(LayoutRoot as INode);
if (Graph.Nodes.Count == 0)
{
return(false);
}
if (Graph.Edges.Count == 0) //this layout is base on embedded springs in the connections
{
return(false);
}
Pars = new Dictionary <string, ForceItem>();
foreach (INode node in Nodes)
{
Pars.Add(node.Uid.ToString(), new ForceItem());
}
return(true);
}
/// <summary>
/// Loads the simulator with all relevant force items and springs.
/// </summary>
/// <param name="fsim"> the force simulator driving this layout.</param>
protected void InitializeSimulator(ForceSimulator fsim)
{
//TODO: some checks here...?
float startX = (referrer == null ? 0f : (float)referrer.X);
float startY = (referrer == null ? 0f : (float)referrer.Y);
startX = float.IsNaN(startX) ? 0f : startX;
startY = float.IsNaN(startY) ? 0f : startY;
foreach (node item in graph.nodes)
{
ForceItem fitem = Pars[item.name];
fitem.Mass = getMassValue(item);
double x = item.X;
double y = item.Y;
fitem.Location[0] = (Double.IsNaN(x) ? startX : (float)x);
fitem.Location[1] = (Double.IsNaN(y) ? startY : (float)y);
fsim.addItem(fitem);
}
foreach (arc e in graph.arcs)
{
node n1 = e.From;
if (n1 == null)
{
continue;
}
ForceItem f1 = Pars[n1.name];
node n2 = e.To;
if (n2 == null)
{
continue;
}
ForceItem f2 = Pars[n2.name];
float coeff = getSpringCoefficient(e);
float slen = getSpringLength(e);
fsim.addSpring(f1, f2, (coeff >= 0 ? coeff : -1.0F), (slen >= 0 ? slen : -1.0F));
}
}
public DiagramGenerator(List <DiagramNodeConnection> connections, int imageWidth)
{
//Build a node list from the connections
_nodes = new List <DiagramNode>();
foreach (DiagramNodeConnection currConnection in connections)
{
if (!_nodes.Contains(currConnection.FirstNode))
{
_nodes.Add(currConnection.FirstNode);
}
if (!_nodes.Contains(currConnection.SecondNode))
{
_nodes.Add(currConnection.SecondNode);
}
}
_connections = connections;
_simulator = new ForceSimulator();
_simulator.AddForce(new NBodyForce());
_simulator.AddForce(new SpringForce());
_simulator.AddForce(new DragForce());
_imageWidth = imageWidth;
}
protected override bool RunLayout()
{
m_fsim = new ForceSimulator();
m_fsim.AddForce(new NBodyForce());
m_fsim.AddForce(new SpringForce());
m_fsim.AddForce(new DragForce());
Pars = new Dictionary <string, ForceItem>();
foreach (node n in graph.nodes)
{
Pars.Add(n.name.ToString(), new ForceItem());
}
progress = 20;
backgroundWorker.ReportProgress(progress);
if (backgroundWorker.CancellationPending)
{
return(false);
}
defaultSpan = 100 * graph.nodes.Count;
bool success = Run(defaultSpan);
return(success);
}
