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annotate engine/core/model/metamodel/grids/cellgrid.h @ 625:92290efadab7

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* This fixes a small bug that causes some primitives to not be rendered by the OpenGL renderbackend
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 01 Oct 2010 21:27:37 +0000
parents 90005975cdbb
children
rev   line source
0
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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90005975cdbb * Final LGPL switch step by adjusting the file headers
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
0
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 #ifndef FIFE_MODEL_GRIDS_CELLGRID_H
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23 #define FIFE_MODEL_GRIDS_CELLGRID_H
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24
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25 // Standard C++ library includes
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26 #include <vector>
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27
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28 // 3rd party library includes
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29
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30 // FIFE includes
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31 // These includes are split up in two parts, separated by one empty line
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32 // First block: files included from the FIFE root src directory
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33 // Second block: files included from the same folder
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34 #include "model/metamodel/modelcoords.h"
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35 #include "util/math/matrix.h"
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36 #include "util/base/fifeclass.h"
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37
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38 namespace FIFE {
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39 class CellGrid: public FifeClass {
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40 public:
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41 /** Constructor
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42 * @param allow_diagonals if true, cellgrid allows diagonal access
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43 */
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44 CellGrid(bool allow_diagonals=false);
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45
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46 /** Destructor
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47 */
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48 virtual ~CellGrid();
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49
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50 /** Gets the coordinates that are accesible from given point
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51 * only cells adjacent to given cell are considered in the evaluation
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52 * @param curpos position (coordinates) to evaluate
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53 * @param coordinate accessible coordinates
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54 */
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55 void getAccessibleCoordinates(const ModelCoordinate& curpos, std::vector<ModelCoordinate>& coordinates);
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56
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57 /** Type of cellgrid
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58 */
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59 virtual const std::string& getType() const = 0;
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60
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61 /** Name of the cellgrid (DEPRECATED? -jwt)
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62 */
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63 virtual const std::string& getName() const = 0;
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64
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65 /** Tells if given target point is accessible from curpos
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66 * only cells adjacent to curpos are considered in the evaluation
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67 * @param curpos position (coordinates) to evaluate
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68 * @param target target coordinate to check
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69 * @return true, if target is accessible from curpos, false otherwise
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70 */
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71 virtual bool isAccessible(const ModelCoordinate& curpos, const ModelCoordinate& target) = 0;
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72
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73 /** Returns *distance* const from curpos to target point
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74 * only cells adjacent to curpos are considered in the evaluation
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75 * @param curpos position (coordinates) to evaluate
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76 * @param target target coordinate to check
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77 * @return distance cost from curpos to target
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78 */
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79 virtual float getAdjacentCost(const ModelCoordinate& curpos, const ModelCoordinate& target) = 0;
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80
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81 /** Gets the count of sides for a single cell
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82 * @return count of sides for a single cell
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83 */
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84 virtual unsigned int getCellSideCount() const = 0;
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85
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86 /** Transforms given point from layer coordinates to map coordinates
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87 * @return point in map coordinates
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88 */
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89 ExactModelCoordinate toMapCoordinates(const ModelCoordinate& layer_coords);
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90
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91 /** Transforms given point from layer coordinates to map coordinates
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92 * @return point in map coordinates
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93 */
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94 virtual ExactModelCoordinate toMapCoordinates(const ExactModelCoordinate& layer_coords) = 0;
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95
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96 /** Transforms given point from map coordinates to layer coordinates
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97 * @return point in layer coordinates
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98 */
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99 virtual ModelCoordinate toLayerCoordinates(const ExactModelCoordinate& map_coord) = 0;
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100
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101 /** Transforms given point from map coordinates to layer coordinates
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102 * @return point in layer coordinates
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103 */
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104 virtual ExactModelCoordinate toExactLayerCoordinates(const ExactModelCoordinate& map_coord) = 0;
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105
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106 /** Fills given point vector with vertices from selected cell
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107 * @param vtx vertices for given cell
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108 * @param cell cell to get vertices from
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109 */
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110 virtual void getVertices(std::vector<ExactModelCoordinate>& vtx, const ModelCoordinate& cell) = 0;
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111
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112 /** Set the cellgrid x shift
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113 * @param shift The shift in map coords
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114 */
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115 void setXShift(const double& xshift) {
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116 m_xshift = xshift;
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117 updateMatrices();
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118 }
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119
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120 /** Get the cellgrid x shift
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121 * @return The x shift
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122 */
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123 const double getXShift() const { return m_xshift; }
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124
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125 /** Set the cellgrid y shift
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126 * @param shift The shift in map coords
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127 */
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128 void setYShift(const double yshift) {
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129 m_yshift = yshift;
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130 updateMatrices();
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131 }
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132
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133 /** Get the cellgrid x shift
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134 * @return The x shift in map coords
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135 */
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136 const double getYShift() const { return m_yshift; }
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137
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138 /** Set the cellgrid x-scaling
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139 * @param scale The x-scale of cellgrid
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140 */
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141 void setXScale(const double scale) {
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142 m_xscale = scale;
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143 updateMatrices();
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144 }
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145
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146 /** Set the cellgrid y-scaling
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147 * @param scale The y-scale of cellgrid
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148 */
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149 void setYScale(const double scale) {
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150 m_yscale = scale;
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151 updateMatrices();
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152 }
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153
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154 /** Get the cellgrid x-scaling
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155 * @return The x-scale of cellgrid
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156 */
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157 const double getXScale() const { return m_xscale; }
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158
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159 /** Get the cellgrid y-scaling
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160 * @return The y-scale of cellgrid
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161 */
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162 const double getYScale() const { return m_yscale; }
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163
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164 /** Set the cellgrid rotation
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165 * @param rotation The rotation of the cellgrid
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166 */
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167 void setRotation(const double rotation) {
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168 m_rotation = rotation;
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169 updateMatrices();
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170 }
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171
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172 /** Get the cellgrid rotation
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173 * @return rotation The rotation of the cellgrid
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174 */
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175 const double getRotation() const { return m_rotation; }
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176
33
112fc4af772d moved grid ownership to model in similar way as with pathers
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177 /** Returns clone of this cellgrid
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jasoka@33b003aa-7bff-0310-803a-e67f0ece8222
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178 */
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179 virtual CellGrid* clone() = 0;
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180
0
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181 protected:
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182 void updateMatrices();
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183 bool ptInTriangle(const ExactModelCoordinate& pt, const ExactModelCoordinate& pt1, const ExactModelCoordinate& pt2, const ExactModelCoordinate& pt3);
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184
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185 DoubleMatrix m_matrix;
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186 DoubleMatrix m_inverse_matrix;
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187 double m_xshift;
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188 double m_yshift;
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189 double m_xscale;
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190 double m_yscale;
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191 double m_rotation;
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192 bool m_allow_diagonals;
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193
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194 private:
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195 int orientation(const ExactModelCoordinate& pt, const ExactModelCoordinate& pt1, const ExactModelCoordinate& pt2);
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196 };
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197 }
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198
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199 #endif