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/*=========================================================================
Program: Visualization Toolkit
Module: TestProgrammableGlyph.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 <vtkSmartPointer.h>
#include <vtkPointData.h>
#include <vtkCubeSource.h>
#include <vtkConeSource.h>
#include <vtkSphereSource.h>
#include <vtkPolyData.h>
#include <vtkPoints.h>
#include <vtkProgrammableGlyphFilter.h>
#include <vtkCellArray.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkFloatArray.h>
void CalcGlyph(void *arg)
{
vtkProgrammableGlyphFilter *glyphFilter = (vtkProgrammableGlyphFilter*) arg;
if(!glyphFilter)
{
std::cerr << "glyphFilter is not valid!" << std::endl;
}
double pointCoords[3];
glyphFilter->GetPoint(pointCoords);
std::cout << "Calling CalcGlyph for point "
<< glyphFilter->GetPointId() << std::endl;
std::cout << "Point coords are: "
<< pointCoords[0] << " "
<< pointCoords[1] << " "
<< pointCoords[2] << std::endl;
if(glyphFilter->GetPointId() == 0)
{
// Normal use case: should produce cone
vtkSmartPointer<vtkConeSource> coneSource =
vtkSmartPointer<vtkConeSource>::New();
coneSource->SetCenter(pointCoords);
glyphFilter->SetSourceConnection(coneSource->GetOutputPort());
}
else if(glyphFilter->GetPointId() == 1)
{
// NULL SourceConnection, valid SourceData: should produce cube
vtkSmartPointer<vtkCubeSource> cubeSource =
vtkSmartPointer<vtkCubeSource>::New();
cubeSource->SetCenter(pointCoords);
cubeSource->Update();
glyphFilter->SetSourceConnection(NULL);
glyphFilter->SetSourceData(cubeSource->GetOutput());
}
else if(glyphFilter->GetPointId() == 2)
{
// Normal use case: should produce sphere
vtkSmartPointer<vtkSphereSource> sphereSource =
vtkSmartPointer<vtkSphereSource>::New();
sphereSource->SetCenter(pointCoords);
glyphFilter->SetSourceConnection(sphereSource->GetOutputPort());
}
else
{
// NULL SourceConnection and NULL SourceData: should produce nothing
glyphFilter->SetSourceConnection(NULL);
glyphFilter->SetSourceData(NULL);
}
}
int TestProgrammableGlyph(int, char *[])
{
// Create points
vtkSmartPointer<vtkPoints> points =
vtkSmartPointer<vtkPoints>::New();
points->InsertNextPoint(0,0,0);
points->InsertNextPoint(5,0,0);
points->InsertNextPoint(10,0,0);
points->InsertNextPoint(15,0,0);
// Combine into a polydata
vtkSmartPointer<vtkPolyData> polydata =
vtkSmartPointer<vtkPolyData>::New();
polydata->SetPoints(points);
vtkSmartPointer<vtkProgrammableGlyphFilter> glyphFilter =
vtkSmartPointer<vtkProgrammableGlyphFilter>::New();
glyphFilter->SetInputData(polydata);
glyphFilter->SetGlyphMethod(CalcGlyph, glyphFilter);
//need a default glyph, but this should not be used
vtkSmartPointer<vtkConeSource> coneSource =
vtkSmartPointer<vtkConeSource>::New();
coneSource->Update();
glyphFilter->SetSourceData(coneSource->GetOutput());
// Create a mapper and actor
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(glyphFilter->GetOutputPort());
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
// Create a renderer, render window, and interactor
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
// Add the actor to the scene
renderer->AddActor(actor);
renderer->SetBackground(.2, .3, .4);
// Render and interact
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
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