Glyph2D
VTKExamples/Cxx/Filtering/Glyph2D
Description
Copy a polydata to every point in the input set. We use a hexagon for the demo.
Code
Glyph2D.cxx
#include <vtkVersion.h>
#include <vtkSmartPointer.h>
#include <vtkRegularPolygonSource.h>
#include <vtkPolyData.h>
#include <vtkPoints.h>
#include <vtkGlyph2D.h>
#include <vtkCellArray.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkPolyDataMapper.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleImage.h>
int main(int, char *[])
{
vtkSmartPointer<vtkPoints> points =
vtkSmartPointer<vtkPoints>::New();
points->InsertNextPoint(0,0,0);
points->InsertNextPoint(1,1,0);
points->InsertNextPoint(2,2,0);
vtkSmartPointer<vtkPolyData> polydata =
vtkSmartPointer<vtkPolyData>::New();
polydata->SetPoints(points);
// Create anything you want here, we will use a polygon for the demo.
vtkSmartPointer<vtkRegularPolygonSource> polygonSource =
vtkSmartPointer<vtkRegularPolygonSource>::New(); //default is 6 sides
vtkSmartPointer<vtkGlyph2D> glyph2D =
vtkSmartPointer<vtkGlyph2D>::New();
glyph2D->SetSourceConnection(polygonSource->GetOutputPort());
#if VTK_MAJOR_VERSION <= 5
glyph2D->SetInput(polydata);
#else
glyph2D->SetInputData(polydata);
#endif
glyph2D->Update();
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(glyph2D->GetOutputPort());
mapper->Update();
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
// Visualize
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);
vtkSmartPointer<vtkInteractorStyleImage> style =
vtkSmartPointer<vtkInteractorStyleImage>::New();
renderWindowInteractor->SetInteractorStyle( style );
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(Glyph2D)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(Glyph2D MACOSX_BUNDLE Glyph2D.cxx)
target_link_libraries(Glyph2D ${VTK_LIBRARIES})
Download and Build Glyph2D
Click here to download Glyph2D and its CMakeLists.txt file. Once the tarball Glyph2D.tar has been downloaded and extracted,
cd Glyph2D/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:
./Glyph2D
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.