RotationAroundLine

VTKExamples/Cxx/PolyData/RotationAroundLine

Description

This example demonstrates how to rotate an object around an axis. For the demo, we rotate a cone 10 degrees around the y axis.

Code

RotationAroundLine.cxx

#include <vtkConeSource.h>
#include <vtkPolyData.h>
#include <vtkTransformPolyDataFilter.h>
#include <vtkTransform.h>
#include <vtkSmartPointer.h>
#include <vtkXMLPolyDataWriter.h>

int main(int, char *[])
{
  //Create a cone
  vtkSmartPointer<vtkConeSource> coneSource = 
    vtkSmartPointer<vtkConeSource>::New();

  {
  vtkSmartPointer<vtkXMLPolyDataWriter> writer = 
      vtkSmartPointer<vtkXMLPolyDataWriter>::New();
  writer->SetInputConnection(coneSource->GetOutputPort());
  writer->SetFileName("original.vtp");
  writer->Write();
  }

  vtkSmartPointer<vtkTransform> transform = vtkSmartPointer<vtkTransform>::New();
  //transform->RotateWXYZ(double angle, double x, double y, double z);
  transform->RotateWXYZ(10, 0, 1, 0);

  vtkSmartPointer<vtkTransformPolyDataFilter> transformFilter = 
      vtkSmartPointer<vtkTransformPolyDataFilter>::New();

  transformFilter->SetTransform(transform);
  transformFilter->SetInputConnection(coneSource->GetOutputPort());
  transformFilter->Update();

  {
    vtkSmartPointer<vtkXMLPolyDataWriter> writer = 
        vtkSmartPointer<vtkXMLPolyDataWriter>::New();
    writer->SetInputConnection(transformFilter->GetOutputPort());
    writer->SetFileName("transformed.vtp");
    writer->Write();
  }

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(RotationAroundLine)

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

add_executable(RotationAroundLine MACOSX_BUNDLE RotationAroundLine.cxx )

target_link_libraries(RotationAroundLine ${VTK_LIBRARIES})

Download and Build RotationAroundLine

Click here to download RotationAroundLine and its CMakeLists.txt file. Once the tarball RotationAroundLine.tar has been downloaded and extracted,

cd RotationAroundLine/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:

./RotationAroundLine

WINDOWS USERS

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