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
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.