Mercurial > hg > orthanc-client
diff Samples/Vtk/main.cpp @ 2:8f22ed9d48d5
cont
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 01 Jun 2015 13:59:12 +0200 |
parents | |
children | 6d59828e2662 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Samples/Vtk/main.cpp Mon Jun 01 13:59:12 2015 +0200 @@ -0,0 +1,174 @@ +/** + * Orthanc - A Lightweight, RESTful DICOM Store + * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, either version 3 of the + * License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#include <iostream> + +#include <vtkRenderWindow.h> +#include <vtkImageData.h> +#include <vtkPiecewiseFunction.h> +#include <vtkFixedPointVolumeRayCastMapper.h> +#include <vtkColorTransferFunction.h> +#include <vtkVolumeProperty.h> +#include <vtkRenderWindowInteractor.h> +#include <vtkRenderer.h> +#include <vtkSmartPointer.h> +#include <vtkOpenGLRenderer.h> +#include <vtkInteractorStyleTrackballCamera.h> + +#include <orthanc/OrthancCppClient.h> + + +void Display(OrthancClient::Series& series) +{ + /** + * Load the 3D image from Orthanc into VTK. + **/ + + vtkSmartPointer<vtkImageData> image = vtkSmartPointer<vtkImageData>::New(); + image->SetDimensions(series.GetWidth(), series.GetHeight(), series.GetInstanceCount()); + image->SetScalarType(VTK_SHORT); + image->AllocateScalars(); + + if (series.GetWidth() != 0 && + series.GetHeight() != 0 && + series.GetInstanceCount() != 0) + { + series.Load3DImage(image->GetScalarPointer(0, 0, 0), Orthanc::PixelFormat_SignedGrayscale16, + 2 * series.GetWidth(), 2 * series.GetHeight() * series.GetWidth()); + } + + image->SetSpacing(series.GetVoxelSizeX(), + series.GetVoxelSizeY(), + series.GetVoxelSizeZ()); + + + /** + * The following code is based on the VTK sample for MIP + * http://www.vtk.org/Wiki/VTK/Examples/Cxx/VolumeRendering/MinIntensityRendering + **/ + + // Create a transfer function mapping scalar value to opacity + double range[2]; + image->GetScalarRange(range); + + vtkSmartPointer<vtkPiecewiseFunction> opacityTransfer = + vtkSmartPointer<vtkPiecewiseFunction>::New(); + opacityTransfer->AddSegment(range[0], 0.0, range[1], 1.0); + + vtkSmartPointer<vtkColorTransferFunction> colorTransfer = + vtkSmartPointer<vtkColorTransferFunction>::New(); + colorTransfer->AddRGBPoint(0, 1.0, 1.0, 1.0); + colorTransfer->AddRGBPoint(range[1], 1.0, 1.0, 1.0); + + vtkSmartPointer<vtkVolumeProperty> property = + vtkSmartPointer<vtkVolumeProperty>::New(); + property->SetScalarOpacity(opacityTransfer); + property->SetColor(colorTransfer); + property->SetInterpolationTypeToLinear(); + + // Create a Maximum Intensity Projection rendering + vtkSmartPointer<vtkFixedPointVolumeRayCastMapper> mapper = + vtkSmartPointer<vtkFixedPointVolumeRayCastMapper>::New(); + mapper->SetBlendModeToMaximumIntensity(); + mapper->SetInput(image); + + vtkSmartPointer<vtkVolume> volume = vtkSmartPointer<vtkVolume>::New(); + volume->SetMapper(mapper); + volume->SetProperty(property); + + vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkOpenGLRenderer>::New(); + renderer->AddViewProp(volume); + renderer->SetBackground(0.1, 0.2, 0.3); // Background color dark blue + + vtkSmartPointer<vtkInteractorStyleTrackballCamera> style = + vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New(); + + vtkSmartPointer<vtkRenderWindow> window = vtkSmartPointer<vtkRenderWindow>::New(); + window->AddRenderer(renderer); + + vtkSmartPointer<vtkRenderWindowInteractor> interactor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); + interactor->SetRenderWindow(window); + interactor->SetInteractorStyle(style); + interactor->Start(); +} + + +int main() +{ + try + { + // The following explicit initialization is not required, except + // if you wish to specify the full path to the shared library + OrthancClient::Initialize(); + + // Use the commented code below if you know the identifier of a + // series that corresponds to a 3D image. + + /* + { + OrthancClient::OrthancConnection orthanc("http://localhost:8042"); + OrthancClient::Series series(orthanc, "dc5ec3d9-6e1a7b2c-73a829f0-64c609f6-ef976a97"); + Display(series); + return 0; + } + */ + + + // Try and find a 3D image inside the local store + OrthancClient::OrthancConnection orthanc("http://localhost:8042"); + + for (unsigned int i = 0; i < orthanc.GetPatientCount(); i++) + { + OrthancClient::Patient patient(orthanc.GetPatient(i)); + std::cout << "Patient: " << patient.GetId() << std::endl; + + for (unsigned int j = 0; j < patient.GetStudyCount(); j++) + { + OrthancClient::Study study(patient.GetStudy(j)); + std::cout << " Study: " << study.GetId() << std::endl; + + for (unsigned int k = 0; k < study.GetSeriesCount(); k++) + { + OrthancClient::Series series(study.GetSeries(k)); + std::cout << " Series: " << series.GetId() << std::endl; + + if (series.Is3DImage()) + { + Display(series); + return 0; + } + else + { + std::cout << " => Not a 3D image..." << std::endl; + } + } + } + } + + std::cout << "Unable to find a 3D image in the local Orthanc store" << std::endl; + + return 0; + } + catch (OrthancClient::OrthancClientException& e) + { + std::cerr << "EXCEPTION: [" << e.What() << "]" << std::endl; + return -1; + } +}