Difference between revisions of "VTK/Examples/Cxx/GeometricObjects/Triangle"

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(Replaced content with "= '''See [https://lorensen.github.io/VTKExamples/site/Cxx/GeometricObjects/Triangle Triangle] on the new [https://lorensen.github.io/VTKExamples/site/ VTKExamples website]...")
 
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<div class="floatright">[[File:VTK_Examples_Baseline_GeometricObjects_TestTriangle.png]]</div>
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= '''See [https://lorensen.github.io/VTKExamples/site/Cxx/GeometricObjects/Triangle Triangle] on the new [https://lorensen.github.io/VTKExamples/site/ VTKExamples website].''' =
==Triangle.cxx==
 
<source lang="cpp">
 
#include <vtkVersion.h>
 
#include <vtkSmartPointer.h>
 
#include <vtkTriangle.h>
 
#include <vtkCellArray.h>
 
#include <vtkPolyData.h>
 
#include <vtkPolyDataMapper.h>
 
#include <vtkActor.h>
 
#include <vtkRenderWindow.h>
 
#include <vtkRenderer.h>
 
#include <vtkRenderWindowInteractor.h>
 
 
 
int main(int , char *[])
 
{
 
  // Create a triangle
 
  vtkSmartPointer<vtkPoints> points =
 
    vtkSmartPointer<vtkPoints>::New();
 
  points->InsertNextPoint ( 1.0, 0.0, 0.0 );
 
  points->InsertNextPoint ( 0.0, 0.0, 0.0 );
 
  points->InsertNextPoint ( 0.0, 1.0, 0.0 );
 
 
 
  vtkSmartPointer<vtkTriangle> triangle =
 
    vtkSmartPointer<vtkTriangle>::New();
 
  triangle->GetPointIds()->SetId ( 0, 0 );
 
  triangle->GetPointIds()->SetId ( 1, 1 );
 
  triangle->GetPointIds()->SetId ( 2, 2 );
 
 
 
  vtkSmartPointer<vtkCellArray> triangles =
 
    vtkSmartPointer<vtkCellArray>::New();
 
  triangles->InsertNextCell ( triangle );
 
 
 
  // Create a polydata object
 
  vtkSmartPointer<vtkPolyData> trianglePolyData =
 
    vtkSmartPointer<vtkPolyData>::New();
 
 
 
  // Add the geometry and topology to the polydata
 
  trianglePolyData->SetPoints ( points );
 
  trianglePolyData->SetPolys ( triangles );
 
 
 
  // Create mapper and actor
 
  vtkSmartPointer<vtkPolyDataMapper> mapper =
 
    vtkSmartPointer<vtkPolyDataMapper>::New();
 
#if VTK_MAJOR_VERSION <= 5
 
  mapper->SetInput(trianglePolyData);
 
#else
 
  mapper->SetInputData(trianglePolyData);
 
#endif
 
  vtkSmartPointer<vtkActor> actor =
 
    vtkSmartPointer<vtkActor>::New();
 
  actor->SetMapper(mapper);
 
 
 
  // Create a renderer, render window, and an 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 actors to the scene
 
  renderer->AddActor(actor);
 
  renderer->SetBackground(.1, .2, .4); // Background color dark blue
 
 
 
  // Render and interact
 
  renderWindow->Render();
 
  renderWindowInteractor->Start();
 
  return EXIT_SUCCESS;
 
}
 
</source>
 
 
 
{{VTKCMakeLists|{{SUBPAGENAME}}}}
 

Latest revision as of 16:38, 16 August 2019

See Triangle on the new VTKExamples website.