VTK/Examples/Cxx/InfoVis/SCurveSpline

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VTK Examples Baseline InfoVis TestSCurveSpline.png

SCurveSpline.cxx

#include <vtkSmartPointer.h>
#include <vtkPointSource.h>
#include <vtkPoints.h>
#include <vtkSCurveSpline.h>
#include <vtkParametricSpline.h>
#include <vtkParametricFunctionSource.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>

int main(int, char *[])
{
  vtkSmartPointer<vtkPointSource> pointSource = 
    vtkSmartPointer<vtkPointSource>::New();
  pointSource->SetNumberOfPoints(5);
  pointSource->Update();
  
  vtkPoints* points = pointSource->GetOutput()->GetPoints();
    
  vtkSmartPointer<vtkSCurveSpline> xSpline = 
    vtkSmartPointer<vtkSCurveSpline>::New();
  vtkSmartPointer<vtkSCurveSpline> ySpline = 
    vtkSmartPointer<vtkSCurveSpline>::New();
  vtkSmartPointer<vtkSCurveSpline> zSpline = 
    vtkSmartPointer<vtkSCurveSpline>::New();

  vtkSmartPointer<vtkParametricSpline> spline = 
    vtkSmartPointer<vtkParametricSpline>::New();
  spline->SetXSpline(xSpline);
  spline->SetYSpline(ySpline);
  spline->SetZSpline(zSpline);
  spline->SetPoints(points);
  
  vtkSmartPointer<vtkParametricFunctionSource> functionSource = 
    vtkSmartPointer<vtkParametricFunctionSource>::New();
  functionSource->SetParametricFunction(spline);
  functionSource->Update();

  // Setup actor and mapper
  vtkSmartPointer<vtkPolyDataMapper> mapper = 
    vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputConnection(functionSource->GetOutputPort());
  
  vtkSmartPointer<vtkActor> actor = 
    vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);
  
  // Setup render window, renderer, 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);
  renderer->AddActor(actor);

  renderWindow->Render();
  renderWindowInteractor->Start();
  
  return EXIT_SUCCESS;
}

Please try the new VTKExamples website.

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)

PROJECT(SCurveSpline)

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

add_executable(SCurveSpline MACOSX_BUNDLE SCurveSpline.cxx)

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

Download and Build SCurveSpline

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

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

cd SCurveSpline/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:

./SCurveSpline

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.