vtkTestFilterSelfProgressFilter
VTKExamples/Cxx/Developers/vtkTestFilterSelfProgressFilter
Code
vtkTestFilterSelfProgressFilter.cxx
#include "vtkSmartPointer.h"
#include "vtkObjectFactory.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include "vtkInformationVector.h"
#include "vtkInformation.h"
#include "vtkDataObject.h"
#include "vtkCallbackCommand.h"
#include "vtkTestFilterSelfProgressFilter.h"
vtkStandardNewMacro(vtkTestFilterSelfProgressFilter);
vtkTestFilterSelfProgressFilter::vtkTestFilterSelfProgressFilter()
{
vtkSmartPointer<vtkCallbackCommand> progressCallback =
vtkSmartPointer<vtkCallbackCommand>::New();
progressCallback->SetCallback(this->ProgressFunction);
this->AddObserver(vtkCommand::ProgressEvent, progressCallback);
}
void vtkTestFilterSelfProgressFilter::ProgressFunction(vtkObject* caller, long unsigned int eventId, void* clientData, void* callData)
{
vtkTestFilterSelfProgressFilter* testFilter = static_cast<vtkTestFilterSelfProgressFilter*>(caller);
cout << "Progress: " << testFilter->GetProgress() << endl;
}
int vtkTestFilterSelfProgressFilter::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(vtkTestFilterSelfProgressFilter)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(vtkTestFilterSelfProgressFilter MACOSX_BUNDLE vtkTestFilterSelfProgressFilter.cxx)
target_link_libraries(vtkTestFilterSelfProgressFilter ${VTK_LIBRARIES})
Download and Build vtkTestFilterSelfProgressFilter
Click here to download vtkTestFilterSelfProgressFilter and its CMakeLists.txt file. Once the tarball vtkTestFilterSelfProgressFilter.tar has been downloaded and extracted,
cd vtkTestFilterSelfProgressFilter/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:
./vtkTestFilterSelfProgressFilter
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.