VTK/Examples/Broken/ApplyColors

From KitwarePublic
< VTK‎ | Examples
Jump to navigationJump to search

How is this different than just using SetArray with a colors array?

ApplyColors.cxx

#include <vtkSmartPointer.h>
#include <vtkProperty.h>
#include <vtkPointSource.h>
#include <vtkApplyColors.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>

int main(int argc, char *argv[])
{
  vtkSmartPointer<vtkPointSource> pointSource = 
      vtkSmartPointer<vtkPointSource>::New();
  pointSource->SetNumberOfPoints(20);
  pointSource->Update();
  
  vtkSmartPointer<vtkApplyColors> applyColors = 
      vtkSmartPointer<vtkApplyColors>::New();
  applyColors->SetInputConnection(pointSource->GetOutputPort());
  applyColors->Update();
  
  //Create a mapper and actor
  vtkSmartPointer<vtkPolyDataMapper> mapper = 
      vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputConnection(applyColors->GetOutputPort());
  mapper->SetScalarModeToUseCellFieldData(); 
  mapper->SelectColorArray("vtkApplyColors color"); 
  mapper->SetScalarVisibility(true);
  
  vtkSmartPointer<vtkActor> actor = 
      vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);
  actor->GetProperty()->SetPointSize(3);
  
    //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(1,1,1); // Background color white
 
  //Render and interact
  renderWindow->Render();
  renderWindowInteractor->Start();
  return EXIT_SUCCESS;
}

Please try the new VTKExamples website.

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(ApplyColors)

find_package(VTK REQUIRED)
include(${VTK_USE_FILE})

add_executable(ApplyColors MACOSX_BUNDLE ApplyColors.cxx)

if(VTK_LIBRARIES)
  target_link_libraries(ApplyColors ${VTK_LIBRARIES})
else()
  target_link_libraries(ApplyColors vtkHybrid vtkWidgets)
endif()

Download and Build ApplyColors

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

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

cd ApplyColors/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:

./ApplyColors

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.

</source>