MatrixTranspose

VTKExamples/Cxx/Math/MatrixTranspose

Code

MatrixTranspose.cxx

#include <vtkSmartPointer.h>
#include <vtkMatrix3x3.h>

int main(int, char *[])
{
  vtkSmartPointer<vtkMatrix3x3> m = 
    vtkSmartPointer<vtkMatrix3x3>::New();

  m->SetElement(2,1,2.0); // Set element (2,1) to 2.0

  std::cout << *m << std::endl;

  m->Transpose();

  std::cout << *m << std::endl;

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(MatrixTranspose)

find_package(VTK COMPONENTS 
  vtkCommonCore
  vtkCommonMath QUIET)
if (NOT VTK_FOUND)
  message("Skipping MatrixTranspose: ${VTK_NOT_FOUND_MESSAGE}")
  return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
  # old system
  include(${VTK_USE_FILE})
  add_executable(MatrixTranspose MACOSX_BUNDLE MatrixTranspose.cxx )
  target_link_libraries(MatrixTranspose PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(MatrixTranspose MACOSX_BUNDLE MatrixTranspose.cxx )
  target_link_libraries(MatrixTranspose PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS MatrixTranspose
    MODULES ${VTK_LIBRARIES}
    )
endif () 

Download and Build MatrixTranspose

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

cd MatrixTranspose/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:

./MatrixTranspose

WINDOWS USERS

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