ProjectPointPlane
VTKExamples/Cxx/SimpleOperations/ProjectPointPlane
Description¶
This example projects a point onto a plane. To use this example, you must have the CVSHEAD version of VTK (as of 2/2/2010).
Code¶
ProjectPointPlane.cxx
#include <vtkSmartPointer.h> #include <vtkPlane.h> int main(int, char *[]) { vtkSmartPointer<vtkPlane> plane = vtkSmartPointer<vtkPlane>::New(); plane->SetOrigin(0.0, 0.0, 0.0); plane->SetNormal(0.0, 0.0, 1.0); double p[3] = {23.1, 54.6, 9.2}; double origin[3] = {0.0, 0.0, 0.0}; double normal[3] = {0.0, 0.0, 1.0}; double projected[3]; plane->ProjectPoint(p, origin, normal, projected); std::cout << "Projected: " << projected[0] << " " << projected[1] << " " << projected[2] << std::endl; return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(ProjectPointPlane) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(ProjectPointPlane MACOSX_BUNDLE ProjectPointPlane.cxx) target_link_libraries(ProjectPointPlane ${VTK_LIBRARIES})
Download and Build ProjectPointPlane¶
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 Some tarballs may be missing or out-of-date.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 ProjectPointPlane and its CMakeLists.txt file. Once the tarball ProjectPointPlane.tar has been downloaded and extracted,
cd ProjectPointPlane/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:
./ProjectPointPlane
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.