Mercurial > hg > orthanc-stone
annotate Framework/Scene2DViewport/MeasureToolsToolbox.cpp @ 703:d4d6c5b502b5
Merging refactor-viewport-controller
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Sun, 19 May 2019 16:31:56 +0200 |
parents | 8b6adfb62a2f |
children | c0fcb2757b0a 712ff6ff3c19 |
rev | line source |
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698
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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 |
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23 #include <Framework/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 } |