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comparison Framework/Radiography/RadiographyAlphaLayer.cpp @ 430:b85f635f1eb5 am-vsol-upgrade

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added serialization for RadiographyScene
author am@osimis.io
date Thu, 29 Nov 2018 15:11:19 +0100
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children 4eb96c6b4e96
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429:c7fb700a7d12 430:b85f635f1eb5
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
6 *
7 * This program is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU Affero General Public License
9 * as published by the Free Software Foundation, either version 3 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 **/
20
21
22 #include "RadiographyAlphaLayer.h"
23
24 #include "RadiographyScene.h"
25
26 #include <Core/Images/Image.h>
27 #include <Core/OrthancException.h>
28
29 namespace OrthancStone
30 {
31
32 void RadiographyAlphaLayer::SetAlpha(Orthanc::ImageAccessor* image)
33 {
34 std::auto_ptr<Orthanc::ImageAccessor> raii(image);
35
36 if (image == NULL)
37 {
38 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
39 }
40
41 if (image->GetFormat() != Orthanc::PixelFormat_Grayscale8)
42 {
43 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat);
44 }
45
46 SetSize(image->GetWidth(), image->GetHeight());
47 alpha_ = raii;
48 }
49
50 void RadiographyAlphaLayer::Render(Orthanc::ImageAccessor& buffer,
51 const AffineTransform2D& viewTransform,
52 ImageInterpolation interpolation) const
53 {
54 if (alpha_.get() == NULL)
55 {
56 return;
57 }
58
59 if (buffer.GetFormat() != Orthanc::PixelFormat_Float32)
60 {
61 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat);
62 }
63
64 unsigned int cropX, cropY, cropWidth, cropHeight;
65 GetCrop(cropX, cropY, cropWidth, cropHeight);
66
67 const AffineTransform2D t = AffineTransform2D::Combine(
68 viewTransform, GetTransform(),
69 AffineTransform2D::CreateOffset(cropX, cropY));
70
71 Orthanc::ImageAccessor cropped;
72 alpha_->GetRegion(cropped, cropX, cropY, cropWidth, cropHeight);
73
74 Orthanc::Image tmp(Orthanc::PixelFormat_Grayscale8, buffer.GetWidth(), buffer.GetHeight(), false);
75
76 t.Apply(tmp, cropped, interpolation, true /* clear */);
77
78 // Blit
79 const unsigned int width = buffer.GetWidth();
80 const unsigned int height = buffer.GetHeight();
81
82 float value = foreground_;
83
84 if (useWindowing_)
85 {
86 float center, width;
87 if (scene_.GetWindowing(center, width))
88 {
89 value = center + width / 2.0f; // TODO: shouldn't it be center alone ?
90 }
91 }
92
93 for (unsigned int y = 0; y < height; y++)
94 {
95 float *q = reinterpret_cast<float*>(buffer.GetRow(y));
96 const uint8_t *p = reinterpret_cast<uint8_t*>(tmp.GetRow(y));
97
98 for (unsigned int x = 0; x < width; x++, p++, q++)
99 {
100 float a = static_cast<float>(*p) / 255.0f;
101
102 *q = (a * value + (1.0f - a) * (*q));
103 }
104 }
105 }
106
107 bool RadiographyAlphaLayer::GetRange(float& minValue,
108 float& maxValue) const
109 {
110 if (useWindowing_)
111 {
112 return false;
113 }
114 else
115 {
116 minValue = 0;
117 maxValue = 0;
118
119 if (foreground_ < 0)
120 {
121 minValue = foreground_;
122 }
123
124 if (foreground_ > 0)
125 {
126 maxValue = foreground_;
127 }
128
129 return true;
130 }
131 }
132 }