Disk
vtk-examples/Cxx/GeometricObjects/Disk
Description¶
vtkDiskSource objects creates a polygonal disk with a hole in the center.
The disk has zero height. The user can specify the inner and outer radius of the disk, and the radial and circumferential resolution of the polygonal representation.
Question
If you have a question about this example, please use the VTK Discourse Forum
Code¶
Disk.cxx
#include <vtkActor.h>
#include <vtkDiskSource.h>
#include <vtkNamedColors.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkNew.h>
int main(int, char *[])
{
vtkNew<vtkNamedColors> colors;
vtkNew<vtkDiskSource> diskSource;
// Create a mapper and actor.
vtkNew<vtkPolyDataMapper> mapper;
mapper->SetInputConnection(diskSource->GetOutputPort());
vtkNew<vtkActor> actor;
actor->GetProperty()->SetColor(colors->GetColor3d("Cornsilk").GetData());
actor->SetMapper(mapper);
// Create a renderer, render window, and interactor
vtkNew<vtkRenderer> renderer;
vtkNew<vtkRenderWindow> renderWindow;
renderWindow->SetWindowName("Disk");
renderWindow->AddRenderer(renderer);
vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
renderWindowInteractor->SetRenderWindow(renderWindow);
// Add the actors to the scene
renderer->AddActor(actor);
renderer->SetBackground(colors->GetColor3d("DarkGreen").GetData());
// Render and interact
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
project(Disk)
find_package(VTK COMPONENTS
vtkCommonColor
vtkCommonCore
vtkFiltersSources
vtkInteractionStyle
vtkRenderingContextOpenGL2
vtkRenderingCore
vtkRenderingFreeType
vtkRenderingGL2PSOpenGL2
vtkRenderingOpenGL2
QUIET
)
if (NOT VTK_FOUND)
message("Skipping Disk: ${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(Disk MACOSX_BUNDLE Disk.cxx )
target_link_libraries(Disk PRIVATE ${VTK_LIBRARIES})
else()
# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
add_executable(Disk MACOSX_BUNDLE Disk.cxx )
target_link_libraries(Disk PRIVATE ${VTK_LIBRARIES})
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS Disk
MODULES ${VTK_LIBRARIES}
)
endif()
Download and Build Disk¶
Click here to download Disk and its CMakeLists.txt file. Once the tarball Disk.tar has been downloaded and extracted,
cd Disk/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:
./Disk
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.