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comparison Resources/Samples/OrthancClient/Vtk/main.cpp @ 590:3237eea24487

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 02 Oct 2013 15:01:02 +0200
parents Resources/Samples/OrthancCppClientStandalone/Vtk/main.cpp@a0001c222b32
children a00f626290db
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589:5c7e113b007a 590:3237eea24487
1 /**
2 * Orthanc - A Lightweight, RESTful DICOM Store
3 * Copyright (C) 2012-2013 Medical Physics Department, CHU of Liege,
4 * Belgium
5 *
6 * Permission is hereby granted, free of charge, to any person
7 * obtaining a copy of this software and associated documentation
8 * files (the "Software"), to deal in the Software without
9 * restriction, including without limitation the rights to use, copy,
10 * modify, merge, publish, distribute, sublicense, and/or sell copies
11 * of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be
15 * included in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
21 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
22 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * SOFTWARE.
25 **/
26
27
28 #include <iostream>
29
30 #include <vtkRenderWindow.h>
31 #include <vtkImageData.h>
32 #include <vtkPiecewiseFunction.h>
33 #include <vtkFixedPointVolumeRayCastMapper.h>
34 #include <vtkColorTransferFunction.h>
35 #include <vtkVolumeProperty.h>
36 #include <vtkRenderWindowInteractor.h>
37 #include <vtkRenderer.h>
38 #include <vtkSmartPointer.h>
39 #include <vtkOpenGLRenderer.h>
40 #include <vtkInteractorStyleTrackballCamera.h>
41
42 #include <orthanc/OrthancCppClient.h>
43
44
45 void Display(OrthancClient::Series& series)
46 {
47 /**
48 * Load the 3D image from Orthanc into VTK.
49 **/
50
51 vtkSmartPointer<vtkImageData> image = vtkSmartPointer<vtkImageData>::New();
52 image->SetDimensions(series.GetWidth(), series.GetHeight(), series.GetInstanceCount());
53 image->SetScalarType(VTK_SHORT);
54 image->AllocateScalars();
55
56 if (series.GetWidth() != 0 &&
57 series.GetHeight() != 0 &&
58 series.GetInstanceCount() != 0)
59 {
60 series.Load3DImage(image->GetScalarPointer(0, 0, 0), Orthanc::PixelFormat_SignedGrayscale16,
61 2 * series.GetWidth(), 2 * series.GetHeight() * series.GetWidth());
62 }
63
64 image->SetSpacing(series.GetVoxelSizeX(),
65 series.GetVoxelSizeY(),
66 series.GetVoxelSizeZ());
67
68
69 /**
70 * The following code is based on the VTK sample for MIP
71 * http://www.vtk.org/Wiki/VTK/Examples/Cxx/VolumeRendering/MinIntensityRendering
72 **/
73
74 // Create a transfer function mapping scalar value to opacity
75 double range[2];
76 image->GetScalarRange(range);
77
78 vtkSmartPointer<vtkPiecewiseFunction> opacityTransfer =
79 vtkSmartPointer<vtkPiecewiseFunction>::New();
80 opacityTransfer->AddSegment(range[0], 0.0, range[1], 1.0);
81
82 vtkSmartPointer<vtkColorTransferFunction> colorTransfer =
83 vtkSmartPointer<vtkColorTransferFunction>::New();
84 colorTransfer->AddRGBPoint(0, 1.0, 1.0, 1.0);
85 colorTransfer->AddRGBPoint(range[1], 1.0, 1.0, 1.0);
86
87 vtkSmartPointer<vtkVolumeProperty> property =
88 vtkSmartPointer<vtkVolumeProperty>::New();
89 property->SetScalarOpacity(opacityTransfer);
90 property->SetColor(colorTransfer);
91 property->SetInterpolationTypeToLinear();
92
93 // Create a Maximum Intensity Projection rendering
94 vtkSmartPointer<vtkFixedPointVolumeRayCastMapper> mapper =
95 vtkSmartPointer<vtkFixedPointVolumeRayCastMapper>::New();
96 mapper->SetBlendModeToMaximumIntensity();
97 mapper->SetInput(image);
98
99 vtkSmartPointer<vtkVolume> volume = vtkSmartPointer<vtkVolume>::New();
100 volume->SetMapper(mapper);
101 volume->SetProperty(property);
102
103 vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkOpenGLRenderer>::New();
104 renderer->AddViewProp(volume);
105 renderer->SetBackground(0.1, 0.2, 0.3); // Background color dark blue
106
107 vtkSmartPointer<vtkInteractorStyleTrackballCamera> style =
108 vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();
109
110 vtkSmartPointer<vtkRenderWindow> window = vtkSmartPointer<vtkRenderWindow>::New();
111 window->AddRenderer(renderer);
112
113 vtkSmartPointer<vtkRenderWindowInteractor> interactor = vtkSmartPointer<vtkRenderWindowInteractor>::New();
114 interactor->SetRenderWindow(window);
115 interactor->SetInteractorStyle(style);
116 interactor->Start();
117 }
118
119
120 int main()
121 {
122 try
123 {
124 // The following explicit initialization is not required, except
125 // if you wish to specify the full path to the shared library
126 OrthancClient::Initialize();
127
128 // Use the commented code below if you know the identifier of a
129 // series that corresponds to a 3D image.
130
131 /*
132 {
133 OrthancClient::OrthancConnection orthanc("http://localhost:8042");
134 OrthancClient::Series series(orthanc, "dc5ec3d9-6e1a7b2c-73a829f0-64c609f6-ef976a97");
135 Display(series);
136 return 0;
137 }
138 */
139
140
141 // Try and find a 3D image inside the local store
142 OrthancClient::OrthancConnection orthanc("http://localhost:8042");
143
144 for (unsigned int i = 0; i < orthanc.GetPatientCount(); i++)
145 {
146 OrthancClient::Patient patient = orthanc.GetPatient(i);
147 std::cout << "Patient: " << patient.GetId() << std::endl;
148
149 for (unsigned int j = 0; j < patient.GetStudyCount(); j++)
150 {
151 OrthancClient::Study study = patient.GetStudy(j);
152 std::cout << " Study: " << study.GetId() << std::endl;
153
154 for (unsigned int k = 0; k < study.GetSeriesCount(); k++)
155 {
156 OrthancClient::Series series = study.GetSeries(k);
157 std::cout << " Series: " << series.GetId() << std::endl;
158
159 if (series.Is3DImage())
160 {
161 Display(series);
162 return 0;
163 }
164 else
165 {
166 std::cout << " => Not a 3D image..." << std::endl;
167 }
168 }
169 }
170 }
171
172 std::cout << "Unable to find a 3D image in the local Orthanc store" << std::endl;
173
174 return 0;
175 }
176 catch (OrthancClient::OrthancClientException e)
177 {
178 std::cerr << "EXCEPTION: [" << e.What() << "]" << std::endl;
179 return -1;
180 }
181 }