VTKExamples/Cxx/Developers/vtkTestFilterProgressFilter
Description¶
ifndef __vtkTestFilterProgressFilter_h¶
define __vtkTestFilterProgressFilter_h¶
include "vtkPolyDataAlgorithm.h"¶
class vtkTestFilterProgressFilter : public vtkPolyDataAlgorithm { public: static vtkTestFilterProgressFilter *New(); vtkTypeMacro(vtkTestFilterProgressFilter,vtkAlgorithm);
protected: vtkTestFilterProgressFilterr(); ~vtkTestFilterProgressFilter() VTK_OVERRIDE {}
int RequestData(vtkInformation , vtkInformationVector , vtkInformationVector ) VTK_OVERRIDE;
static void ProgressFunction(vtkObject caller, long unsigned int eventId, void clientData, void* callData);
private: vtkTestFilterProgressFilter(const vtkTestFilterProgressFilter&) VTK_DELETE_FUNCTION; void operator=(const vtkTestFilterProgressFilterr&) VTK_DELETE_FUNCTION;
};
endif¶
Code¶
vtkTestFilterProgressFilter.cxx
#include "vtkSmartPointer.h" #include "vtkObjectFactory.h" #include "vtkStreamingDemandDrivenPipeline.h" #include "vtkInformationVector.h" #include "vtkInformation.h" #include "vtkDataObject.h" #include "vtkCallbackCommand.h" #include "vtkTestFilterProgressFilter.h" vtkStandardNewMacro(vtkTestFilterProgressFilter); vtkTestFilterProgressFilter::vtkTestFilterProgressFilter() { vtkSmartPointer<vtkCallbackCommand> progressCallback = vtkSmartPointer<vtkCallbackCommand>::New(); progressCallback->SetCallback(this->ProgressFunction); this->AddObserver(vtkCommand::ProgressEvent, progressCallback); } void vtkTestFilterProgressFilter::ProgressFunction(vtkObject* caller, long unsigned int eventId, void* clientData, void* callData) { vtkTestFilterProgressFilterr* testFilter = static_cast<vtkTestFilterProgressFilter*>(caller); cout << "Progress: " << testFilter->GetProgress() << endl; } int vtkTestFilterProgressFilter::RequestData(vtkInformation *vtkNotUsed(request), vtkInformationVector **inputVector, vtkInformationVector *outputVector) { // get the info objects vtkInformation *inInfo = inputVector[0]->GetInformationObject(0); vtkInformation *outInfo = outputVector->GetInformationObject(0); // get the input and ouptut vtkPolyData *input = vtkPolyData::SafeDownCast( inInfo->Get(vtkDataObject::DATA_OBJECT())); vtkPolyData *output = vtkPolyData::SafeDownCast( outInfo->Get(vtkDataObject::DATA_OBJECT())); for(vtkIdType i = 0; i < input->GetNumberOfPoints(); i++) { this->UpdateProgress(static_cast<double>(i)/input->GetNumberOfPoints()); } output->ShallowCopy(input); return 1; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(vtkTestFilterProgressFilter) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(vtkTestFilterProgressFilter MACOSX_BUNDLE vtkTestFilterProgressFilter.cxx) target_link_libraries(vtkTestFilterProgressFilter ${VTK_LIBRARIES})
Download and Build vtkTestFilterProgressFilter¶
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 vtkTestFilterProgressFilter and its CMakeLists.txt file. Once the tarball vtkTestFilterProgressFilter.tar has been downloaded and extracted,
cd vtkTestFilterProgressFilter/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:
./vtkTestFilterProgressFilter
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.