CaptionWidget
VTKExamples/Cxx/Widgets/CaptionWidget
Code
CaptionWidget.cxx
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkPolyData.h>
#include <vtkSmartPointer.h>
#include <vtkSphereSource.h>
#include <vtkCaptionWidget.h>
#include <vtkCaptionRepresentation.h>
#include <vtkCaptionActor2D.h>
#include <vtkTextActor.h>
#include <vtkTextProperty.h>
int main(int, char *[])
{
// Sphere
vtkSmartPointer<vtkSphereSource> sphereSource =
vtkSmartPointer<vtkSphereSource>::New();
sphereSource->Update();
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(sphereSource->GetOutputPort());
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
// 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);
// Create the widget and its representation
vtkSmartPointer<vtkCaptionRepresentation> captionRepresentation =
vtkSmartPointer<vtkCaptionRepresentation>::New();
captionRepresentation->GetCaptionActor2D()->SetCaption("Test caption");
captionRepresentation->GetCaptionActor2D()->GetTextActor()->GetTextProperty()->SetFontSize(100);
double pos[3] = {.5,0,0};
captionRepresentation->SetAnchorPosition(pos);
vtkSmartPointer<vtkCaptionWidget> captionWidget =
vtkSmartPointer<vtkCaptionWidget>::New();
captionWidget->SetInteractor(renderWindowInteractor);
captionWidget->SetRepresentation(captionRepresentation);
// Add the actors to the scene
renderer->AddActor(actor);
renderer->SetBackground(1,0,0);
renderWindow->Render();
captionWidget->On();
// Begin mouse interaction
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(CaptionWidget)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(CaptionWidget MACOSX_BUNDLE CaptionWidget.cxx)
target_link_libraries(CaptionWidget ${VTK_LIBRARIES})
Download and Build CaptionWidget
Click here to download CaptionWidget and its CMakeLists.txt file. Once the tarball CaptionWidget.tar has been downloaded and extracted,
cd CaptionWidget/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:
./CaptionWidget
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.