Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/MeasureToolsToolbox.cpp @ 736:c0fcb2757b0a

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enforce relative includes
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 22 May 2019 08:38:52 +0200
parents 8b6adfb62a2f
children 92c400a09f1b
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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
736
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23 #include "../Scene2D/TextSceneLayer.h"
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24
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25 #include <boost/math/constants/constants.hpp>
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26
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27 namespace
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28 {
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29 double g_pi = boost::math::constants::pi<double>();
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30 }
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31
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32 namespace OrthancStone
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33 {
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34 double RadiansToDegrees(double angleRad)
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35 {
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36 static const double factor = 180.0 / g_pi;
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37 return angleRad * factor;
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38 }
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39
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40 void AddSquare(PolylineSceneLayer::Chain& chain,
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41 const Scene2D& scene,
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42 const ScenePoint2D& centerS,
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43 const double& sideLength)
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44 {
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45 chain.clear();
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46 chain.reserve(4);
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47 ScenePoint2D centerC = centerS.Apply(scene.GetSceneToCanvasTransform());
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48 //TODO: take DPI into account
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49 double handleLX = centerC.GetX() - sideLength / 2;
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50 double handleTY = centerC.GetY() - sideLength / 2;
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51 double handleRX = centerC.GetX() + sideLength / 2;
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52 double handleBY = centerC.GetY() + sideLength / 2;
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53 ScenePoint2D LTC(handleLX, handleTY);
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54 ScenePoint2D RTC(handleRX, handleTY);
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55 ScenePoint2D RBC(handleRX, handleBY);
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56 ScenePoint2D LBC(handleLX, handleBY);
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57
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58 ScenePoint2D startLT = LTC.Apply(scene.GetCanvasToSceneTransform());
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59 ScenePoint2D startRT = RTC.Apply(scene.GetCanvasToSceneTransform());
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60 ScenePoint2D startRB = RBC.Apply(scene.GetCanvasToSceneTransform());
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61 ScenePoint2D startLB = LBC.Apply(scene.GetCanvasToSceneTransform());
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62
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63 chain.push_back(startLT);
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64 chain.push_back(startRT);
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65 chain.push_back(startRB);
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66 chain.push_back(startLB);
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67 }
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68 #if 0
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69 void AddArc(
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70 PolylineSceneLayer::Chain& chain
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71 , const Scene2D& scene
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72 , const ScenePoint2D& p1
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73 , const ScenePoint2D& c
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74 , const ScenePoint2D& p2
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75 , const double& radiusS
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76 , const bool clockwise
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77 , const int subdivisionsCount)
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78 {
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79 double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX());
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80 double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX());
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81 AddArc(
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82 chain, scene, c, radiusS, p1cAngle, p2cAngle,
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83 clockwise, subdivisionsCount);
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84 }
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85 #endif
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86
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87 void AddShortestArc(
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88 PolylineSceneLayer::Chain& chain
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89 , const Scene2D& scene
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90 , const ScenePoint2D& p1
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91 , const ScenePoint2D& c
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92 , const ScenePoint2D& p2
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93 , const double& radiusS
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94 , const int subdivisionsCount)
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95 {
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96 double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX());
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97 double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX());
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98 AddShortestArc(
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99 chain, scene, c, radiusS, p1cAngle, p2cAngle, subdivisionsCount);
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100 }
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101
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102 void GetPositionOnBisectingLine(
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103 ScenePoint2D& result
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104 , const ScenePoint2D& p1
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105 , const ScenePoint2D& c
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106 , const ScenePoint2D& p2
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107 , const double d)
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108 {
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109 // TODO: fix correct half-plane
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110 double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX());
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111 double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX());
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112 double angle = 0.5*(p1cAngle + p2cAngle);
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113 double unitVectorX = cos(angle);
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114 double unitVectorY = sin(angle);
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115 double posX = c.GetX() + d * unitVectorX;
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116 double posY = c.GetX() + d * unitVectorY;
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117 result = ScenePoint2D(posX, posY);
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118 }
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119
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120 void AddShortestArc(
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121 PolylineSceneLayer::Chain& chain
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122 , const Scene2D& scene
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123 , const ScenePoint2D& centerS
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124 , const double& radiusS
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125 , const double startAngleRad
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126 , const double endAngleRad
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127 , const int subdivisionsCount)
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128 {
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129 // this gives a signed difference between angle which
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130 // is the smallest difference (in magnitude) between
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131 // the angles
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132 double delta = NormalizeAngle(endAngleRad-startAngleRad);
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133
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134 chain.clear();
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135 chain.reserve(subdivisionsCount + 1);
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136
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137 double angleIncr = delta/static_cast<double>(subdivisionsCount);
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138
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139 double theta = startAngleRad;
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140 for (int i = 0; i < subdivisionsCount + 1; ++i)
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141 {
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142 double offsetX = radiusS * cos(theta);
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143 double offsetY = radiusS * sin(theta);
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144 double pointX = centerS.GetX() + offsetX;
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145 double pointY = centerS.GetY() + offsetY;
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146 chain.push_back(ScenePoint2D(pointX, pointY));
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147 theta += angleIncr;
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148 }
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149 }
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150
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151 #if 0
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152 void AddArc(
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153 PolylineSceneLayer::Chain& chain
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154 , const Scene2D& scene
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155 , const ScenePoint2D& centerS
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156 , const double& radiusS
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157 , const double startAngleRad
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158 , const double endAngleRad
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159 , const bool clockwise
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160 , const int subdivisionsCount)
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161 {
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162 double startAngleRadN = NormalizeAngle(startAngleRad);
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163 double endAngleRadN = NormalizeAngle(endAngleRad);
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164
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165 double angle1Rad = std::min(startAngleRadN, endAngleRadN);
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166 double angle2Rad = std::max(startAngleRadN, endAngleRadN);
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167
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168 // now we are sure angle1Rad < angle2Rad
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169 // this means that if we draw from 1 to 2, it will be clockwise (
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170 // increasing angles).
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171 // let's fix this:
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172 if (!clockwise)
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173 {
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174 angle2Rad -= 2 * g_pi;
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175 // now we are sure angle2Rad < angle1Rad (since they were normalized)
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176 // and, thus, going from 1 to 2 means the angle values will DECREASE,
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177 // which is the definition of anticlockwise
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178 }
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179
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180 chain.clear();
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181 chain.reserve(subdivisionsCount + 1);
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182
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183 double angleIncr = (angle2Rad - angle1Rad)
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184 / static_cast<double>(subdivisionsCount);
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185
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186 double theta = angle1Rad;
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187 for (int i = 0; i < subdivisionsCount + 1; ++i)
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188 {
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189 double offsetX = radiusS * cos(theta);
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190 double offsetY = radiusS * sin(theta);
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191 double pointX = centerS.GetX() + offsetX;
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192 double pointY = centerS.GetY() + offsetY;
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193 chain.push_back(ScenePoint2D(pointX, pointY));
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194 theta += angleIncr;
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195 }
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196 }
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197 #endif
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198
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199 void AddCircle(PolylineSceneLayer::Chain& chain,
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200 const Scene2D& scene,
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201 const ScenePoint2D& centerS,
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202 const double& radiusS,
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203 const int numSubdivisions)
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204 {
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205 //ScenePoint2D centerC = centerS.Apply(scene.GetSceneToCanvasTransform());
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206 //TODO: take DPI into account
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207
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208 // TODO: automatically compute the number for segments for smooth
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209 // display based on the radius in pixels.
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210
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211 chain.clear();
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212 chain.reserve(numSubdivisions);
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213
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214 double angleIncr = (2.0 * g_pi)
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215 / static_cast<double>(numSubdivisions);
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216
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217 double theta = 0;
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218 for (int i = 0; i < numSubdivisions; ++i)
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219 {
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220 double offsetX = radiusS * cos(theta);
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221 double offsetY = radiusS * sin(theta);
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222 double pointX = centerS.GetX() + offsetX;
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223 double pointY = centerS.GetY() + offsetY;
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224 chain.push_back(ScenePoint2D(pointX, pointY));
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225 theta += angleIncr;
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226 }
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227 }
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228
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229 double NormalizeAngle(double angle)
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230 {
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231 double retAngle = angle;
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232 while (retAngle < -1.0*g_pi)
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233 retAngle += 2 * g_pi;
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234 while (retAngle >= g_pi)
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235 retAngle -= 2 * g_pi;
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236 return retAngle;
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237 }
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238
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239 double MeasureAngle(const ScenePoint2D& p1, const ScenePoint2D& c, const ScenePoint2D& p2)
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240 {
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241 double p1cAngle = atan2(p1.GetY() - c.GetY(), p1.GetX() - c.GetX());
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242 double p2cAngle = atan2(p2.GetY() - c.GetY(), p2.GetX() - c.GetX());
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243 double delta = p2cAngle - p1cAngle;
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244 return NormalizeAngle(delta);
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245 }
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246
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247
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248 #if 0
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249 void AddEllipse(PolylineSceneLayer::Chain& chain,
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250 const Scene2D& scene,
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251 const ScenePoint2D& centerS,
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252 const double& halfHAxis,
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253 const double& halfVAxis)
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254 {
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255 chain.clear();
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256 chain.reserve(4);
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257 ScenePoint2D centerC = centerS.Apply(scene.GetSceneToCanvasTransform());
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258 //TODO: take DPI into account
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259 double handleLX = centerC.GetX() - sideLength / 2;
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260 double handleTY = centerC.GetY() - sideLength / 2;
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261 double handleRX = centerC.GetX() + sideLength / 2;
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262 double handleBY = centerC.GetY() + sideLength / 2;
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263 ScenePoint2D LTC(handleLX, handleTY);
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264 ScenePoint2D RTC(handleRX, handleTY);
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265 ScenePoint2D RBC(handleRX, handleBY);
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266 ScenePoint2D LBC(handleLX, handleBY);
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267
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268 ScenePoint2D startLT = LTC.Apply(scene.GetCanvasToSceneTransform());
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269 ScenePoint2D startRT = RTC.Apply(scene.GetCanvasToSceneTransform());
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270 ScenePoint2D startRB = RBC.Apply(scene.GetCanvasToSceneTransform());
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271 ScenePoint2D startLB = LBC.Apply(scene.GetCanvasToSceneTransform());
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272
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273 chain.push_back(startLT);
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274 chain.push_back(startRT);
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275 chain.push_back(startRB);
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276 chain.push_back(startLB);
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277 }
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278 #endif
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279
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280
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281 namespace
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282 {
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283 /**
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284 Helper function for outlined text rendering
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285 */
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286 TextSceneLayer* GetOutlineTextLayer(
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287 Scene2D& scene, int baseLayerIndex, int index)
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288 {
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289 assert(scene.HasLayer(baseLayerIndex));
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290 assert(index >= 0);
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291 assert(index < 5);
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292
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293 ISceneLayer * layer = &(scene.GetLayer(baseLayerIndex + index));
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294 TextSceneLayer * concreteLayer = dynamic_cast<TextSceneLayer*>(layer);
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295 assert(concreteLayer != NULL);
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296 return concreteLayer;
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297 }
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298 }
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299
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300 void SetTextLayerOutlineProperties(
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301 Scene2D& scene, int baseLayerIndex, const char* text, ScenePoint2D p)
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302 {
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303 double xoffsets[5] = { 2, 0, -2, 0, 0 };
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304 double yoffsets[5] = { 0, -2, 0, 2, 0 };
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305
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306 // get the scaling factor
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307 const double pixelToScene =
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308 scene.GetCanvasToSceneTransform().ComputeZoom();
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309
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310 for (int i = 0; i < 5; ++i)
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311 {
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312 TextSceneLayer* textLayer = GetOutlineTextLayer(scene, baseLayerIndex, i);
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313 textLayer->SetText(text);
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314
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315 if (i == 4)
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316 textLayer->SetColor(0, 223, 81);
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317 else
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318 textLayer->SetColor(0, 56, 21);
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319
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320 ScenePoint2D textAnchor;
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321 //GetPositionOnBisectingLine(
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322 // textAnchor, side1End_, center_, side2End_, 40.0*pixelToScene);
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323 textLayer->SetPosition(
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324 p.GetX() + xoffsets[i] * pixelToScene,
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325 p.GetY() + yoffsets[i] * pixelToScene);
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326 }
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327 }
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328
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329
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330
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331
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332
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333
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334
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335
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336 }