static NodeLabelingWindow()
{
LabelModels.Add(LABEL_MODEL_INTERIOR, new InteriorLabelModel());
LabelModels.Add(LABEL_MODEL_EXTERIOR, new ExteriorLabelModel()
{
Insets = new InsetsD(10)
});
LabelModels.Add(LABEL_MODEL_FREENODE, new FreeNodeLabelModel());
LabelModels.Add(LABEL_MODEL_SANDWICH, new SandwichLabelModel()
{
YOffset = 10
});
IList <ILabelModelParameter> list = new List <ILabelModelParameter>();
var model = new ExteriorLabelModel()
{
Insets = new InsetsD(5)
};
list.Add(model.CreateParameter(ExteriorLabelModel.Position.North));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.South));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.East));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.West));
model = new ExteriorLabelModel()
{
Insets = new InsetsD(10)
};
list.Add(model.CreateParameter(ExteriorLabelModel.Position.North));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.South));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.East));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.West));
model = new ExteriorLabelModel()
{
Insets = new InsetsD(15)
};
list.Add(model.CreateParameter(ExteriorLabelModel.Position.North));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.South));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.East));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.West));
var genericLabelModel = new GenericLabelModel(list[0]);
foreach (var labelModelParameter in list)
{
// set different profits for various insets
var insets = ((ExteriorLabelModel)labelModelParameter.Model).Insets.Top;
double profit = insets < 10 ? 1.0 : insets < 15 ? 0.9 : 0.8;
genericLabelModel.AddParameter(labelModelParameter, new LabelCandidateDescriptor {
Profit = profit
});
}
LabelModels.Add(LABEL_MODEL_THREE_DISTANCE, genericLabelModel);
}
/// <summary>
/// Creates a sample graph and introduces all important graph elements present in
/// yFiles WPF. Additionally, this method now overrides the label placement for some specific labels.
/// </summary>
private void PopulateGraph()
{
#region Sample Graph creation
//////////// Sample node creation ///////////////////
// Creates two nodes with the default node size
// The location is specified for the _center_
INode node1 = Graph.CreateNode(new PointD(50, 50));
INode node2 = Graph.CreateNode(new PointD(150, 50));
// Creates a third node with a different size of 80x40
// In this case, the location of (360,380) describes the _upper left_
// corner of the node bounds
INode node3 = Graph.CreateNode(new RectD(360, 380, 80, 40));
/////////////////////////////////////////////////////
//////////// Sample edge creation ///////////////////
// Creates some edges between the nodes
IEdge edge1 = Graph.CreateEdge(node1, node2);
IEdge edge2 = Graph.CreateEdge(node2, node3);
/////////////////////////////////////////////////////
//////////// Using Bends ////////////////////////////
// Creates the first bend for edge2 at (400, 50)
IBend bend1 = Graph.AddBend(edge2, new PointD(400, 50));
/////////////////////////////////////////////////////
//////////// Using Ports ////////////////////////////
// Actually, edges connect "ports", not nodes directly.
// If necessary, you can manually create ports at nodes
// and let the edges connect to these.
// Creates a port in the center of the node layout
IPort port1AtNode1 = Graph.AddPort(node1, FreeNodePortLocationModel.NodeCenterAnchored);
// Creates a port at the middle of the left border
// Note to use absolute locations when placing ports using PointD.
IPort port1AtNode3 = Graph.AddPort(node3, new PointD(node3.Layout.X, node3.Layout.GetCenter().Y));
// Creates an edge that connects these specific ports
IEdge edgeAtPorts = Graph.CreateEdge(port1AtNode1, port1AtNode3);
/////////////////////////////////////////////////////
//////////// Sample label creation ///////////////////
// Adds labels to several graph elements
Graph.AddLabel(node1, "N 1");
Graph.AddLabel(node2, "N 2");
var node3Label = Graph.AddLabel(node3, "N 3");
Graph.AddLabel(edgeAtPorts, "Edge at Ports");
/////////////////////////////////////////////////////
/////////////////////////////////////////////////////
#endregion
///////////////// New in this Sample /////////////////
// Override default label placement
// For our "special" label, we use a model that describes discrete positions
// outside the node bounds
ExteriorLabelModel exteriorLabelModel = new ExteriorLabelModel();
// We use some extra insets from the label to the node bounds
exteriorLabelModel.Insets = new InsetsD(5);
// We assign this label a specific symbolic position out of the eight possible
// external locations valid for ExteriorLabelModel
Graph.SetLabelLayoutParameter(node3Label, exteriorLabelModel.CreateParameter(ExteriorLabelModel.Position.South));
/////////////////////////////////////////////////////
}
/// <summary>
/// Populates the ToolStrip's LabelModel combobox
/// </summary>
private void SetupOptions()
{
const string LABEL_MODEL_INTERIOR = "Interior";
const string LABEL_MODEL_EXTERIOR = "Exterior";
const string LABEL_MODEL_FREENODE = "Free Node";
const string LABEL_MODEL_SANDWICH = "Sandwich";
const string LABEL_MODEL_THREE_DISTANCE = "Three Distances";
LabelModels.Add(LABEL_MODEL_INTERIOR, new InteriorLabelModel());
LabelModels.Add(LABEL_MODEL_EXTERIOR, new ExteriorLabelModel()
{
Insets = new InsetsD(10)
});
LabelModels.Add(LABEL_MODEL_FREENODE, new FreeNodeLabelModel());
LabelModels.Add(LABEL_MODEL_SANDWICH, new SandwichLabelModel()
{
YOffset = 10
});
IList <ILabelModelParameter> list = new List <ILabelModelParameter>();
var model = new ExteriorLabelModel()
{
Insets = new InsetsD(5)
};
list.Add(model.CreateParameter(ExteriorLabelModel.Position.North));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.South));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.East));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.West));
model = new ExteriorLabelModel()
{
Insets = new InsetsD(10)
};
list.Add(model.CreateParameter(ExteriorLabelModel.Position.North));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.South));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.East));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.West));
model = new ExteriorLabelModel()
{
Insets = new InsetsD(15)
};
list.Add(model.CreateParameter(ExteriorLabelModel.Position.North));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.NorthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.South));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthEast));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.SouthWest));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.East));
list.Add(model.CreateParameter(ExteriorLabelModel.Position.West));
var genericLabelModel = new GenericLabelModel(list[0]);
foreach (var labelModelParameter in list)
{
// set different profits for various insets
var insets = ((ExteriorLabelModel)labelModelParameter.Model).Insets.Top;
double profit = insets < 10 ? 1.0 : insets < 15 ? 0.9 : 0.8;
genericLabelModel.AddParameter(labelModelParameter, new LabelCandidateDescriptor {
Profit = profit
});
}
LabelModels.Add(LABEL_MODEL_THREE_DISTANCE, genericLabelModel);
// create the options
foreach (var key in LabelModels.Keys)
{
labelModelComboBox.Items.Add(key);
}
labelModelComboBox.SelectedItem = LABEL_MODEL_EXTERIOR;
}