DrawShapes
VTKExamples/Cxx/Images/DrawShapes
Code¶
DrawShapes.cxx
#include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkRenderer.h> #include <vtkImageData.h> #include <vtkSmartPointer.h> #include <vtkImageViewer2.h> #include <vtkImageCanvasSource2D.h> int main(int, char *[]) { // Create a blank, black image vtkSmartPointer<vtkImageCanvasSource2D> drawing = vtkSmartPointer<vtkImageCanvasSource2D>::New(); drawing->SetScalarTypeToUnsignedChar(); drawing->SetNumberOfScalarComponents(3); drawing->SetExtent(0, 20, 0, 50, 0, 0); drawing->FillBox(0,20,0,50); // Draw a red circle of radius 5 centered at (9,10) //drawing->SetDrawColor(255, 0, 0, 0.5); drawing->SetDrawColor(255, 0, 0, 0); drawing->DrawCircle(9, 10, 5); drawing->Update(); // View the result vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); vtkSmartPointer<vtkImageViewer2> imageViewer = vtkSmartPointer<vtkImageViewer2>::New(); imageViewer->SetInputConnection(drawing->GetOutputPort()); imageViewer->SetupInteractor(renderWindowInteractor); imageViewer->GetRenderer()->ResetCamera(); imageViewer->GetRenderer()->SetBackground(1,1,1); //white background renderWindowInteractor->Initialize(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(DrawShapes) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(DrawShapes MACOSX_BUNDLE DrawShapes.cxx) target_link_libraries(DrawShapes ${VTK_LIBRARIES})
Download and Build DrawShapes¶
Danger
The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
Click here to download DrawShapes and its CMakeLists.txt file. Once the tarball DrawShapes.tar has been downloaded and extracted,
cd DrawShapes/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:
./DrawShapes
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.