ProgressReport
VTKExamples/Cxx/Developers/ProgressReport
Description
This example demonstrates how to get the progress of a filter. This requires that the filter is updating its progress in a sensible way. A sample filter is provided which loops through the input points and updates its progress along the way.
Code
ProgressReport.cxx
#include <vtkSmartPointer.h>
#include <vtkPoints.h>
#include <vtkPolyData.h>
#include <vtkSphereSource.h>
#include <vtkCallbackCommand.h>
#include <vtkCommand.h>
#include "vtkTestProgressReportFilter.h"
void ProgressFunction(vtkObject* caller, long unsigned int eventId, void* clientData, void* callData);
int main(int, char *[])
{
vtkSmartPointer<vtkSphereSource> sphereSource =
vtkSmartPointer<vtkSphereSource>::New();
sphereSource->Update();
vtkSmartPointer<vtkCallbackCommand> progressCallback =
vtkSmartPointer<vtkCallbackCommand>::New();
progressCallback->SetCallback(ProgressFunction);
vtkSmartPointer<vtkTestProgressReportFilter> testFilter =
vtkSmartPointer<vtkTestProgressReportFilter>::New();
testFilter->SetInputConnection(sphereSource->GetOutputPort());
testFilter->AddObserver(vtkCommand::ProgressEvent, progressCallback);
testFilter->Update();
return EXIT_SUCCESS;
}
void ProgressFunction ( vtkObject* caller,
long unsigned int vtkNotUsed(eventId),
void* vtkNotUsed(clientData),
void* vtkNotUsed(callData) )
{
vtkTestProgressReportFilter* testFilter = static_cast<vtkTestProgressReportFilter*>(caller);
std::cout << "Progress: " << testFilter->GetProgress() << std::endl;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(ProgressReport)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(ProgressReport MACOSX_BUNDLE ProgressReport.cxx)
target_link_libraries(ProgressReport ${VTK_LIBRARIES})
Download and Build ProgressReport
Click here to download ProgressReport and its CMakeLists.txt file. Once the tarball ProgressReport.tar has been downloaded and extracted,
cd ProgressReport/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:
./ProgressReport
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.