Mercurial > hg > orthanc-stone
annotate Framework/Scene2DViewport/MeasureToolsToolbox.cpp @ 754:92c400a09f1b
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author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Wed, 22 May 2019 16:13:46 +0200 |
parents | 712ff6ff3c19 c0fcb2757b0a |
children | 66ac7a2d1e3a |
rev | line source |
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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 } |