VTK/Examples/Cxx/Visualization/ScalarVisibility

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VTK Examples Baseline Visualization TestScalarVisibility.png

ScalarVisibility.cxx

#include "vtkActor.h"
#include "vtkPolyDataMapper.h"
#include "vtkPointSource.h"
#include "vtkProperty.h"
#include "vtkPolyData.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkSmartPointer.h"
 
int main(int, char *[])
{
  vtkSmartPointer<vtkPointSource> pointSource = vtkSmartPointer<vtkPointSource>::New();
  vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputConnection(pointSource->GetOutputPort());
  mapper->ScalarVisibilityOff();
 
  vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
  actor->SetMapper( mapper );
  unsigned char red[3] = {255, 0, 0};
  actor->GetProperty()->SetColor(red[0], red[1], red[2]);
  vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();
  renderer->AddActor(actor);
 
  vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer( renderer );
  vtkSmartPointer<vtkRenderWindowInteractor> interactor = vtkSmartPointer<vtkRenderWindowInteractor>::New();
  interactor->SetRenderWindow( renderWindow );
 
  renderWindow->Render();
 
  interactor->Start();
 
  return EXIT_SUCCESS;
}


CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
 
PROJECT(ScalarVisibility)
 
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
 
add_executable(ScalarVisibility MACOSX_BUNDLE ScalarVisibility.cxx)
 
if(VTK_LIBRARIES)
  target_link_libraries(ScalarVisibility ${VTK_LIBRARIES})
else()
  target_link_libraries(ScalarVisibility vtkHybrid vtkWidgets)
endif()

Download and Build ScalarVisibility

Click here to download ScalarVisibility. and its CMakeLists.txt file.

Once the tarball ScalarVisibility.tar has been downloaded and extracted,

cd ScalarVisibility/build 
  • If VTK is installed:
cmake ..
  • If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..

Build the project:

make

and run it:

./ScalarVisibility

WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.