VTK/Examples/Cxx/PolyData/ParametricSpline

From KitwarePublic
< VTK‎ | Examples‎ | Cxx
Jump to: navigation, search
VTK Examples Baseline PolyData TestParametricSpline.png

ParametricSpline.cxx

#include <vtkSmartPointer.h>
#include <vtkCellArray.h>
#include <vtkCellData.h>
#include <vtkDoubleArray.h>
#include <vtkPoints.h>
#include <vtkParametricSpline.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkParametricFunctionSource.h>
 
int main(int, char *[])
{
  // Create three points. We will join (Origin and P0) with a red line and (Origin and P1) with a green line  double origin[3] = {0.0, 0.0, 0.0};  double p0[3] = {1.0, 0.0, 0.0};  double p1[3] = {0.0, 1.0, 0.0};  double p2[3] = {0.0, 1.0, 2.0};  double p3[3] = {1.0, 2.0, 3.0};   // Create a vtkPoints object and store the points in it  vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();  points->InsertNextPoint(origin);  points->InsertNextPoint(p0);  points->InsertNextPoint(p1);  points->InsertNextPoint(p2);  points->InsertNextPoint(p3);   vtkSmartPointer<vtkParametricSpline> spline =     vtkSmartPointer<vtkParametricSpline>::New();  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(ParametricSpline)
 
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
 
add_executable(ParametricSpline MACOSX_BUNDLE ParametricSpline.cxx)
 
if(VTK_LIBRARIES)
  target_link_libraries(ParametricSpline ${VTK_LIBRARIES})
else()
  target_link_libraries(ParametricSpline vtkHybrid vtkWidgets)
endif()

Download and Build ParametricSpline

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

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

cd ParametricSpline/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:

./ParametricSpline

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.