SplineWidget

VTKExamples/Cxx/Widgets/SplineWidget

Description

Note

This original source code for this example is here.

Other Languages

See (Java)

Code

SplineWidget.cxx

#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartPointer.h>
#include <vtkSplineWidget2.h>

int main(int, char *[])
{
  // A renderer and render window
  vtkSmartPointer<vtkRenderer> renderer = 
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow = 
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);

  // An interactor
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = 
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);

  vtkSmartPointer<vtkSplineWidget2> splineWidget = 
    vtkSmartPointer<vtkSplineWidget2>::New();
  splineWidget->SetInteractor(renderWindowInteractor);

  renderWindowInteractor->Initialize();
  renderWindow->Render();
  splineWidget->On();
  renderer->ResetCamera();
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(SplineWidget)

find_package(VTK COMPONENTS 
  vtkCommonCore
  vtkInteractionStyle
  vtkInteractionWidgets
  vtkRenderingCore
  vtkRenderingFreeType
  vtkRenderingOpenGL2 QUIET)
if (NOT VTK_FOUND)
  message("Skipping SplineWidget: ${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(SplineWidget MACOSX_BUNDLE SplineWidget.cxx )
  target_link_libraries(SplineWidget PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(SplineWidget MACOSX_BUNDLE SplineWidget.cxx )
  target_link_libraries(SplineWidget PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS SplineWidget
    MODULES ${VTK_LIBRARIES}
    )
endif ()

Download and Build SplineWidget

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

cd SplineWidget/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:

./SplineWidget

WINDOWS USERS

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