Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/MeasureToolsToolbox.cpp @ 754:92c400a09f1b

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Merge from default
author Benjamin Golinvaux <bgo@osimis.io>
date Wed, 22 May 2019 16:13:46 +0200
parents 712ff6ff3c19 c0fcb2757b0a
children 66ac7a2d1e3a
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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) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21 #include "MeasureToolsToolbox.h"
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22 #include "PointerTypes.h"
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23 #include "LayerHolder.h"
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24
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25 #include "../Scene2D/TextSceneLayer.h"
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26 #include "../Scene2D/Scene2D.h"
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27
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28 #include <boost/math/constants/constants.hpp>
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29
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30 namespace
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31 {
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32 double g_pi = boost::math::constants::pi<double>();
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33 }
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34
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35 namespace OrthancStone
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36 {
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37 void GetPositionOnBisectingLine(
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38 ScenePoint2D& result
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39 , const ScenePoint2D& p1
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40 , const ScenePoint2D& c
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41 , const ScenePoint2D& p2
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42 , const double d)
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43 {
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44 // TODO: fix correct half-plane
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45 double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX());
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46 double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX());
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47 double angle = 0.5 * (p1cAngle + p2cAngle);
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48 double unitVectorX = cos(angle);
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49 double unitVectorY = sin(angle);
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50 double posX = c.GetX() + d * unitVectorX;
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51 double posY = c.GetX() + d * unitVectorY;
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52 result = ScenePoint2D(posX, posY);
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53 }
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54
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55 double RadiansToDegrees(double angleRad)
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56 {
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57 static const double factor = 180.0 / g_pi;
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58 return angleRad * factor;
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59 }
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60
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61 void AddSquare(PolylineSceneLayer::Chain& chain,
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62 Scene2DConstPtr scene,
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63 const ScenePoint2D& centerS,
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64 const double& sideLengthS)
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65 {
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66 // get the scaling factor
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67 const double sceneToCanvas =
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68 scene->GetSceneToCanvasTransform().ComputeZoom();
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69
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70 chain.clear();
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71 chain.reserve(4);
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72 ScenePoint2D centerC = centerS.Apply(scene->GetSceneToCanvasTransform());
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73 //TODO: take DPI into account
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74 double handleLX = centerC.GetX() - sideLengthS * sceneToCanvas * 0.5;
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75 double handleTY = centerC.GetY() - sideLengthS * sceneToCanvas * 0.5;
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76 double handleRX = centerC.GetX() + sideLengthS * sceneToCanvas * 0.5;
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77 double handleBY = centerC.GetY() + sideLengthS * sceneToCanvas * 0.5;
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78 ScenePoint2D LTC(handleLX, handleTY);
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79 ScenePoint2D RTC(handleRX, handleTY);
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80 ScenePoint2D RBC(handleRX, handleBY);
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81 ScenePoint2D LBC(handleLX, handleBY);
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82
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83 ScenePoint2D startLT = LTC.Apply(scene->GetCanvasToSceneTransform());
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84 ScenePoint2D startRT = RTC.Apply(scene->GetCanvasToSceneTransform());
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85 ScenePoint2D startRB = RBC.Apply(scene->GetCanvasToSceneTransform());
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86 ScenePoint2D startLB = LBC.Apply(scene->GetCanvasToSceneTransform());
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87
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88 chain.push_back(startLT);
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89 chain.push_back(startRT);
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90 chain.push_back(startRB);
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91 chain.push_back(startLB);
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92 }
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93 #if 0
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94 void AddArc(
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95 PolylineSceneLayer::Chain& chain
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96 , const Scene2D& scene
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97 , const ScenePoint2D& p1
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98 , const ScenePoint2D& c
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99 , const ScenePoint2D& p2
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100 , const double& radiusS
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101 , const bool clockwise
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102 , const int subdivisionsCount)
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103 {
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104 double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX());
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105 double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX());
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106 AddArc(
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107 chain, scene, c, radiusS, p1cAngle, p2cAngle,
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108 clockwise, subdivisionsCount);
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109 }
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110 #endif
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111
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112 void AddShortestArc(
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113 PolylineSceneLayer::Chain& chain
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114 , const ScenePoint2D& p1
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115 , const ScenePoint2D& c
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116 , const ScenePoint2D& p2
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117 , const double& radiusS
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118 , const int subdivisionsCount)
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119 {
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120 double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX());
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121 double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX());
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122 AddShortestArc(
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123 chain, c, radiusS, p1cAngle, p2cAngle, subdivisionsCount);
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124 }
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125
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126 void AddShortestArc(
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127 PolylineSceneLayer::Chain& chain
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128 , const ScenePoint2D& centerS
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129 , const double& radiusS
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130 , const double startAngleRad
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131 , const double endAngleRad
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132 , const int subdivisionsCount)
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133 {
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134 // this gives a signed difference between angle which
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135 // is the smallest difference (in magnitude) between
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136 // the angles
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137 double delta = NormalizeAngle(endAngleRad-startAngleRad);
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138
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139 chain.clear();
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140 chain.reserve(subdivisionsCount + 1);
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141
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142 double angleIncr = delta/static_cast<double>(subdivisionsCount);
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143
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144 double theta = startAngleRad;
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145 for (int i = 0; i < subdivisionsCount + 1; ++i)
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146 {
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147 double offsetX = radiusS * cos(theta);
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148 double offsetY = radiusS * sin(theta);
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149 double pointX = centerS.GetX() + offsetX;
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150 double pointY = centerS.GetY() + offsetY;
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151 chain.push_back(ScenePoint2D(pointX, pointY));
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152 theta += angleIncr;
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153 }
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154 }
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155
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156 #if 0
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157 void AddArc(
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158 PolylineSceneLayer::Chain& chain
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159 , const Scene2D& scene
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160 , const ScenePoint2D& centerS
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161 , const double& radiusS
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162 , const double startAngleRad
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163 , const double endAngleRad
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164 , const bool clockwise
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165 , const int subdivisionsCount)
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166 {
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167 double startAngleRadN = NormalizeAngle(startAngleRad);
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168 double endAngleRadN = NormalizeAngle(endAngleRad);
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169
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170 double angle1Rad = std::min(startAngleRadN, endAngleRadN);
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171 double angle2Rad = std::max(startAngleRadN, endAngleRadN);
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172
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173 // now we are sure angle1Rad < angle2Rad
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174 // this means that if we draw from 1 to 2, it will be clockwise (
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175 // increasing angles).
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176 // let's fix this:
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177 if (!clockwise)
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178 {
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179 angle2Rad -= 2 * g_pi;
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180 // now we are sure angle2Rad < angle1Rad (since they were normalized)
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181 // and, thus, going from 1 to 2 means the angle values will DECREASE,
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182 // which is the definition of anticlockwise
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183 }
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184
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185 chain.clear();
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186 chain.reserve(subdivisionsCount + 1);
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187
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188 double angleIncr = (angle2Rad - angle1Rad)
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189 / static_cast<double>(subdivisionsCount);
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190
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191 double theta = angle1Rad;
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192 for (int i = 0; i < subdivisionsCount + 1; ++i)
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193 {
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194 double offsetX = radiusS * cos(theta);
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195 double offsetY = radiusS * sin(theta);
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196 double pointX = centerS.GetX() + offsetX;
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197 double pointY = centerS.GetY() + offsetY;
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198 chain.push_back(ScenePoint2D(pointX, pointY));
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199 theta += angleIncr;
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200 }
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201 }
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202 #endif
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203
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204 void AddCircle(PolylineSceneLayer::Chain& chain,
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205 const ScenePoint2D& centerS,
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206 const double& radiusS,
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207 const int numSubdivisions)
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208 {
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209 //ScenePoint2D centerC = centerS.Apply(scene.GetSceneToCanvasTransform());
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210 //TODO: take DPI into account
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211
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212 // TODO: automatically compute the number for segments for smooth
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213 // display based on the radius in pixels.
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214
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215 chain.clear();
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216 chain.reserve(numSubdivisions);
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217
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218 double angleIncr = (2.0 * g_pi)
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219 / static_cast<double>(numSubdivisions);
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220
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221 double theta = 0;
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222 for (int i = 0; i < numSubdivisions; ++i)
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223 {
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224 double offsetX = radiusS * cos(theta);
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225 double offsetY = radiusS * sin(theta);
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226 double pointX = centerS.GetX() + offsetX;
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227 double pointY = centerS.GetY() + offsetY;
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228 chain.push_back(ScenePoint2D(pointX, pointY));
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229 theta += angleIncr;
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230 }
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231 }
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232
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233 double NormalizeAngle(double angle)
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234 {
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235 double retAngle = angle;
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236 while (retAngle < -1.0*g_pi)
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237 retAngle += 2 * g_pi;
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238 while (retAngle >= g_pi)
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239 retAngle -= 2 * g_pi;
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240 return retAngle;
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241 }
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242
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243 double MeasureAngle(const ScenePoint2D& p1, const ScenePoint2D& c, const ScenePoint2D& p2)
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244 {
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245 double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX());
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246 double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX());
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247 double delta = p2cAngle - p1cAngle;
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248 return NormalizeAngle(delta);
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249 }
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250
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251
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252 #if 0
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253 void AddEllipse(PolylineSceneLayer::Chain& chain,
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254 const Scene2D& scene,
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255 const ScenePoint2D& centerS,
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256 const double& halfHAxis,
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257 const double& halfVAxis)
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258 {
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259 chain.clear();
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260 chain.reserve(4);
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261 ScenePoint2D centerC = centerS.Apply(scene.GetSceneToCanvasTransform());
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262 //TODO: take DPI into account
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263 double handleLX = centerC.GetX() - sideLength / 2;
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264 double handleTY = centerC.GetY() - sideLength / 2;
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265 double handleRX = centerC.GetX() + sideLength / 2;
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266 double handleBY = centerC.GetY() + sideLength / 2;
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267 ScenePoint2D LTC(handleLX, handleTY);
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268 ScenePoint2D RTC(handleRX, handleTY);
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269 ScenePoint2D RBC(handleRX, handleBY);
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270 ScenePoint2D LBC(handleLX, handleBY);
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271
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272 ScenePoint2D startLT = LTC.Apply(scene.GetCanvasToSceneTransform());
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273 ScenePoint2D startRT = RTC.Apply(scene.GetCanvasToSceneTransform());
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274 ScenePoint2D startRB = RBC.Apply(scene.GetCanvasToSceneTransform());
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275 ScenePoint2D startLB = LBC.Apply(scene.GetCanvasToSceneTransform());
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276
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277 chain.push_back(startLT);
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278 chain.push_back(startRT);
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279 chain.push_back(startRB);
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280 chain.push_back(startLB);
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281 }
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282 #endif
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283
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284
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285 /**
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286 This utility function assumes that the layer holder contains 5 text layers
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287 and will use the first four ones for the text background and the fifth one
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288 for the actual text
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289 */
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290 void SetTextLayerOutlineProperties(
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291 Scene2DPtr scene, LayerHolderPtr layerHolder,
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292 const char* text, ScenePoint2D p)
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293 {
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294 double xoffsets[5] = { 2, 0, -2, 0, 0 };
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295 double yoffsets[5] = { 0, -2, 0, 2, 0 };
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296
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297 // get the scaling factor
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298 const double pixelToScene =
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299 scene->GetCanvasToSceneTransform().ComputeZoom();
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300
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301 for (int i = 0; i < 5; ++i)
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302 {
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303 TextSceneLayer* textLayer = layerHolder->GetTextLayer(i);
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304 textLayer->SetText(text);
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305
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306 if (i == 4)
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307 textLayer->SetColor(0, 223, 81);
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308 else
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309 textLayer->SetColor(0, 56, 21);
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310
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311 ScenePoint2D textAnchor;
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312 //GetPositionOnBisectingLine(
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313 // textAnchor, side1End_, center_, side2End_, 40.0*pixelToScene);
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314 textLayer->SetPosition(
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315 p.GetX() + xoffsets[i] * pixelToScene,
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316 p.GetY() + yoffsets[i] * pixelToScene);
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317 }
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318 }
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319
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320
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321
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322
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323
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324
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325
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326
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327 }