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annotate OrthancStone/Sources/Scene2D/LookupTableTextureSceneLayer.h @ 2075:d84bdcbd8bf1

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allow negative values in Grid Frame Offset Vector (3004, 000c)
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 11 Jul 2023 13:20:20 +0200
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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22
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23
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24 #pragma once
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25
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26 #include "TextureBaseSceneLayer.h"
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28 namespace OrthancStone
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29 {
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30 class LookupTableTextureSceneLayer : public TextureBaseSceneLayer
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31 {
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32 private:
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33 ImageWindowing windowing_;
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34 float minValue_;
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35 float maxValue_;
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36 std::vector<uint8_t> lut_;
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37 bool applyLog_;
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38
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39 void SetLookupTableRgb(const std::vector<uint8_t>& lut);
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40
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41 public:
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42 // The pixel format must be convertible to Float32
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43 explicit LookupTableTextureSceneLayer(const Orthanc::ImageAccessor& texture);
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44
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45 void SetLookupTableGrayscale();
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46
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47 // The vector must contain either 3 * 256 values (RGB), or 4 * 256
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48 // (RGBA). In the RGB case, an alpha channel will be automatically added.
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49 void SetLookupTable(const std::vector<uint8_t>& lut);
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50
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51 void SetRange(float minValue,
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52 float maxValue);
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53
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54 void FitRange();
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55
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56 float GetMinValue() const
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57 {
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58 return minValue_;
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59 }
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61 float GetMaxValue() const
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62 {
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63 return maxValue_;
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64 }
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65
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66 // This returns a vector of 4 * 256 values between 0 and 255, in RGBA.
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67 const std::vector<uint8_t>& GetLookupTable() const
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68 {
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69 return lut_;
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70 }
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71
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72 void SetApplyLog(bool apply);
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73
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74 bool IsApplyLog() const
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75 {
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76 return applyLog_;
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77 }
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78
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79 virtual ISceneLayer* Clone() const ORTHANC_OVERRIDE;
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81 virtual Type GetType() const ORTHANC_OVERRIDE
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82 {
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83 return Type_LookupTableTexture;
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84 }
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86 // Render the texture to a color image of format BGRA32 (Cairo
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87 // surfaces) or RGBA32 (OpenGL)
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88 void Render(Orthanc::ImageAccessor& target) const;
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89 };
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90 }