StructuredGridOutline
VTKExamples/Cxx/StructuredGrid/StructuredGridOutline
Description¶
Visualize the outline of a structured grid.
Code¶
StructuredGridOutline.cxx
#include <vtkVersion.h> #include <vtkSmartPointer.h> #include <vtkStructuredGrid.h> #include <vtkXMLStructuredGridWriter.h> #include <vtkMath.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkStructuredGridOutlineFilter.h> int main(int, char *[]) { // Create a grid vtkSmartPointer<vtkStructuredGrid> structuredGrid = vtkSmartPointer<vtkStructuredGrid>::New(); vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New(); unsigned int numi = 2; unsigned int numj = 3; unsigned int numk = 2; for(unsigned int k = 0; k < numk; k++) { for(unsigned int j = 0; j < numj; j++) { for(unsigned int i = 0; i < numi; i++) { points->InsertNextPoint(i, j, k); } } } //specify the dimensions of the grid structuredGrid->SetDimensions(numi, numj, numk); structuredGrid->SetPoints(points); std::cout << "There are " << structuredGrid->GetNumberOfPoints() << " points." << std::endl; std::cout << "There are " << structuredGrid->GetNumberOfCells() << " cells." << std::endl; vtkSmartPointer<vtkStructuredGridOutlineFilter> outlineFilter = vtkSmartPointer<vtkStructuredGridOutlineFilter>::New(); #if VTK_MAJOR_VERSION <= 5 outlineFilter->SetInputConnection(structuredGrid->GetProducerPort()); #else outlineFilter->SetInputData(structuredGrid); #endif outlineFilter->Update(); // Create a mapper and actor vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputConnection(outlineFilter->GetOutputPort()); 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); //renderer->SetBackground(1,1,1); // Background color white renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(StructuredGridOutline) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(StructuredGridOutline MACOSX_BUNDLE StructuredGridOutline.cxx) target_link_libraries(StructuredGridOutline ${VTK_LIBRARIES})
Download and Build StructuredGridOutline¶
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 StructuredGridOutline and its CMakeLists.txt file. Once the tarball StructuredGridOutline.tar has been downloaded and extracted,
cd StructuredGridOutline/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:
./StructuredGridOutline
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.