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/*=========================================================================
Program: Visualization Toolkit
Module: GraphItem.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkCommand.h"
#include "vtkRandomGraphSource.h"
#include "vtkGraph.h"
#include "vtkGraphItem.h"
#include "vtkVariant.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkSmartPointer.h"
#include "vtkContextView.h"
#include "vtkContextScene.h"
#include "vtkObjectFactory.h"
#include "vtkRegressionTestImage.h"
class GraphAnimate : public vtkCommand
{
public:
static GraphAnimate *New() { return new GraphAnimate(); }
vtkTypeMacro(GraphAnimate, vtkCommand);
virtual void Execute(vtkObject *, unsigned long, void *)
{
this->GraphItem->UpdatePositions();
this->View->Render();
this->View->GetRenderWindow()->GetInteractor()->CreateOneShotTimer(10);
}
vtkGraphItem* GraphItem;
vtkContextView* View;
};
//----------------------------------------------------------------------------
int main(int, char *[])
{
// Set up a 2D context view, context test object and add it to the scene
vtkSmartPointer<vtkContextView> view = vtkSmartPointer<vtkContextView>::New();
view->GetRenderer()->SetBackground(1.0, 1.0, 1.0);
view->GetRenderWindow()->SetSize(800, 600);
vtkSmartPointer<vtkRandomGraphSource> source = vtkSmartPointer<vtkRandomGraphSource>::New();
source->SetNumberOfVertices(100);
source->SetNumberOfEdges(0);
source->StartWithTreeOn();
source->Update();
vtkSmartPointer<vtkGraphItem> item = vtkSmartPointer<vtkGraphItem>::New();
item->SetGraph(source->GetOutput());
view->GetScene()->AddItem(item);
vtkSmartPointer<GraphAnimate> anim = vtkSmartPointer<GraphAnimate>::New();
anim->View = view;
anim->GraphItem = item;
view->GetRenderWindow()->GetInteractor()->Initialize();
view->GetRenderWindow()->GetInteractor()->CreateOneShotTimer(10);
view->GetRenderWindow()->GetInteractor()->AddObserver(vtkCommand::TimerEvent, anim);
view->GetRenderWindow()->GetInteractor()->Start();
}
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