/// <summary>
/// Clears the graph and makes a new one
/// </summary>
private void createNewGraph()
{
String lookupValue = toolStripTextBox1.Text;
//clean up any old graph views in the renderer
vtkMutableDirectedGraph g_temp = g;
g = vtkMutableDirectedGraph.New();
if (g_temp != null)
{
g_temp.Dispose();
}
//reset array lists
arrListSmall = new System.Collections.ArrayList();
vtkStringArray label = vtkStringArray.New();
label.SetName("label");
//give the graph a starting point
g.GetVertexData().AddArray(label);
g.AddVertex();
label.InsertNextValue(lookupValue);
arrListSmall.Add(lookupValue);
int hops;
try
{
hops = System.Convert.ToInt32(toolStripTextBox3.Text);
}
catch (Exception)
{
hops = 1;
}
//Start the loading graphic and switch renderers
vtkRenderWindow win = this.renderWindowControl1.RenderWindow;
win.AddRenderer(logoRenderer);
win.Render();
this.webBrowser1.Url = new Uri("http://en.wikipedia.org/wiki/" + lookupValue.Replace(" ", "_"));
//Start the work
addLinks(g, lookupValue, hops);
//Go back to the graph view after the work is done
win.RemoveRenderer(logoRenderer);
//Setup the view properties
view.SetLayoutStrategyToSimple2D();
view.AddRepresentationFromInput(g);
view.SetVertexLabelArrayName("label");
view.VertexLabelVisibilityOn();
view.SetVertexColorArrayName("VertexDegree");
view.ColorVerticesOn();
view.GetRenderer().ResetCamera();
view.Update();
}
private void XGMLReader()
{
// Path to vtk data must be set as an environment variable
// VTK_DATA_ROOT = "C:\VTK\vtkdata-5.8.0"
vtkTesting test = vtkTesting.New();
string root = test.GetDataRoot();
string filePath = System.IO.Path.Combine(root, @"Data\Infovis\fsm.gml");
vtkXGMLReader reader = vtkXGMLReader.New();
reader.SetFileName(filePath);
reader.Update();
vtkUndirectedGraph g = reader.GetOutput();
vtkGraphLayoutView graphLayoutView = vtkGraphLayoutView.New();
graphLayoutView.SetRenderWindow(renderWindowControl1.RenderWindow);
graphLayoutView.AddRepresentationFromInput(g);
graphLayoutView.SetLayoutStrategy("Simple 2D");
graphLayoutView.ResetCamera();
graphLayoutView.Render();
}
