PlanesIntersection
vtk-examples/Cxx/GeometricObjects/PlanesIntersection
Question
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Code¶
PlanesIntersection.cxx
#include <vtkNew.h>
#include <vtkPlanesIntersection.h>
#include <vtkPoints.h>
#include <vtkSphereSource.h>
int main(int, char*[])
{
vtkNew<vtkSphereSource> sphereSource;
sphereSource->Update();
double bounds[6];
sphereSource->GetOutput()->GetBounds(bounds);
vtkNew<vtkPoints> box;
box->SetNumberOfPoints(8);
double xMin, xMax, yMin, yMax, zMin, zMax;
xMin = bounds[0];
xMax = bounds[1];
yMin = bounds[2];
yMax = bounds[3];
zMin = bounds[4];
zMax = bounds[5];
box->SetPoint(0, xMax, yMin, zMax);
box->SetPoint(1, xMax, yMin, zMin);
box->SetPoint(2, xMax, yMax, zMin);
box->SetPoint(3, xMax, yMax, zMax);
box->SetPoint(4, xMin, yMin, zMax);
box->SetPoint(5, xMin, yMin, zMin);
box->SetPoint(6, xMin, yMax, zMin);
box->SetPoint(7, xMin, yMax, zMax);
vtkNew<vtkPlanesIntersection> planesIntersection;
planesIntersection->SetBounds(bounds);
int intersects = planesIntersection->IntersectsRegion(box);
auto res = (intersects == 1) ? "Yes" : "No";
std::cout << "Intersects? " << res << std::endl;
return EXIT_SUCCESS;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
project(PlanesIntersection)
find_package(VTK COMPONENTS
vtkCommonCore
vtkCommonDataModel
vtkFiltersSources
QUIET
)
if (NOT VTK_FOUND)
message("Skipping PlanesIntersection: ${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(PlanesIntersection MACOSX_BUNDLE PlanesIntersection.cxx )
target_link_libraries(PlanesIntersection PRIVATE ${VTK_LIBRARIES})
else ()
# include all components
add_executable(PlanesIntersection MACOSX_BUNDLE PlanesIntersection.cxx )
target_link_libraries(PlanesIntersection PRIVATE ${VTK_LIBRARIES})
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS PlanesIntersection
MODULES ${VTK_LIBRARIES}
)
endif ()
Download and Build PlanesIntersection¶
Click here to download PlanesIntersection and its CMakeLists.txt file. Once the tarball PlanesIntersection.tar has been downloaded and extracted,
cd PlanesIntersection/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:
./PlanesIntersection
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.