RotationAroundLine
VTKExamples/Cxx/PolyData/RotationAroundLine
Description¶
This example demonstrates how to rotate an object around an axis. For the demo, we rotate a cone 10 degrees around the y axis.
Code¶
RotationAroundLine.cxx
#include <vtkConeSource.h> #include <vtkPolyData.h> #include <vtkTransformPolyDataFilter.h> #include <vtkTransform.h> #include <vtkSmartPointer.h> #include <vtkXMLPolyDataWriter.h> int main(int, char *[]) { //Create a cone vtkSmartPointer<vtkConeSource> coneSource = vtkSmartPointer<vtkConeSource>::New(); { vtkSmartPointer<vtkXMLPolyDataWriter> writer = vtkSmartPointer<vtkXMLPolyDataWriter>::New(); writer->SetInputConnection(coneSource->GetOutputPort()); writer->SetFileName("original.vtp"); writer->Write(); } vtkSmartPointer<vtkTransform> transform = vtkSmartPointer<vtkTransform>::New(); //transform->RotateWXYZ(double angle, double x, double y, double z); transform->RotateWXYZ(10, 0, 1, 0); vtkSmartPointer<vtkTransformPolyDataFilter> transformFilter = vtkSmartPointer<vtkTransformPolyDataFilter>::New(); transformFilter->SetTransform(transform); transformFilter->SetInputConnection(coneSource->GetOutputPort()); transformFilter->Update(); { vtkSmartPointer<vtkXMLPolyDataWriter> writer = vtkSmartPointer<vtkXMLPolyDataWriter>::New(); writer->SetInputConnection(transformFilter->GetOutputPort()); writer->SetFileName("transformed.vtp"); writer->Write(); } return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(RotationAroundLine) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(RotationAroundLine MACOSX_BUNDLE RotationAroundLine.cxx) target_link_libraries(RotationAroundLine ${VTK_LIBRARIES})
Download and Build RotationAroundLine¶
Danger
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Click here to download RotationAroundLine and its CMakeLists.txt file. Once the tarball RotationAroundLine.tar has been downloaded and extracted,
cd RotationAroundLine/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:
./RotationAroundLine
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.