DataBounds
VTKExamples/Cxx/PolyData/DataBounds
Description¶
This examples gets the bounds of a dataset. Note that Update() must be applied to create the output of the filter.
Code¶
DataBounds.cxx
#include <vtkSphereSource.h> #include <vtkSmartPointer.h> #include <vtkPolyData.h> #include <vtkXMLPolyDataReader.h> int main(int argc, char *argv[]) { vtkSmartPointer<vtkPolyData> polyData = vtkSmartPointer<vtkPolyData>::New(); if (argc > 1) { vtkSmartPointer<vtkXMLPolyDataReader> reader = vtkSmartPointer<vtkXMLPolyDataReader>::New(); reader->SetFileName ( argv[1] ); reader->Update(); polyData = reader->GetOutput(); } else { vtkSmartPointer<vtkSphereSource> modelSource = vtkSmartPointer<vtkSphereSource>::New(); modelSource->Update(); polyData = modelSource->GetOutput(); } double bounds[6]; polyData->GetBounds(bounds); std::cout << "xmin: " << bounds[0] << " " << "xmax: " << bounds[1] << std::endl << "ymin: " << bounds[2] << " " << "ymax: " << bounds[3] << std::endl << "zmin: " << bounds[4] << " " << "zmax: " << bounds[5] << std::endl; return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(DataBounds) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(DataBounds MACOSX_BUNDLE DataBounds.cxx) target_link_libraries(DataBounds ${VTK_LIBRARIES})
Download and Build DataBounds¶
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 Some tarballs may be missing or out-of-date.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 DataBounds and its CMakeLists.txt file. Once the tarball DataBounds.tar has been downloaded and extracted,
cd DataBounds/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:
./DataBounds
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.