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maint: Indent namespaces in more files.
author John W. Eaton <jwe@octave.org>
date Wed, 17 Aug 2016 11:43:27 -0400
parents 71dd9d5a5ecd
children 2b1612cf38e4
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1 /*
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2
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3 Copyright (C) 2008-2016 Michael Goffioul
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #if ! defined (octave_gl_render_h)
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24 #define octave_gl_render_h 1
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26 #include "octave-config.h"
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27
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28 #include "graphics.h"
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29 #include "text-renderer.h"
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30
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31 namespace octave
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32 {
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33 class
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34 OCTINTERP_API
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35 opengl_renderer
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36 {
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37 public:
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38
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39 opengl_renderer (void);
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40
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41 virtual ~opengl_renderer (void) { }
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42
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43 virtual void draw (const graphics_object& go, bool toplevel = true);
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44
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45 virtual void draw (const Matrix& hlist, bool toplevel = false)
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46 {
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47 int len = hlist.numel ();
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48
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49 for (int i = len-1; i >= 0; i--)
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50 {
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51 graphics_object obj = gh_manager::get_object (hlist(i));
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52
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53 if (obj)
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54 draw (obj, toplevel);
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55 }
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56 }
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57
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58 virtual void set_viewport (int w, int h);
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59 virtual graphics_xform get_transform (void) const { return xform; }
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60
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61 virtual void finish (void);
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62
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63 protected:
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64 virtual void draw_figure (const figure::properties& props);
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65 virtual void draw_axes (const axes::properties& props);
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66 virtual void draw_line (const line::properties& props);
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67 virtual void draw_surface (const surface::properties& props);
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68 virtual void draw_patch (const patch::properties& props);
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69 virtual void draw_light (const light::properties& props);
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70 virtual void draw_hggroup (const hggroup::properties& props);
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71 virtual void draw_text (const text::properties& props);
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72 virtual void draw_image (const image::properties& props);
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73 virtual void draw_uipanel (const uipanel::properties& props,
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74 const graphics_object& go);
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75 virtual void draw_uibuttongroup (const uibuttongroup::properties& props,
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76 const graphics_object& go);
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77 virtual void init_gl_context (bool enhanced, const Matrix& backgroundColor);
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78 virtual void setup_opengl_transformation (const axes::properties& props);
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79
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80 virtual void set_color (const Matrix& c);
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81 virtual void set_polygon_offset (bool on, float offset = 0.0f);
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82 virtual void set_linewidth (float w);
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83 virtual void set_linestyle (const std::string& s, bool stipple = false);
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84 virtual void set_clipbox (double x1, double x2, double y1, double y2,
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85 double z1, double z2);
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86 virtual void set_clipping (bool on);
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87 virtual void set_font (const base_properties& props);
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88 virtual void set_interpreter (const caseless_str& interp)
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89 {
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90 interpreter = interp;
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91 }
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92
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93 virtual void init_marker (const std::string& m, double size, float width);
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94 virtual void end_marker (void);
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95 virtual void draw_marker (double x, double y, double z,
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96 const Matrix& lc, const Matrix& fc);
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97
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98 virtual void text_to_pixels (const std::string& txt,
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99 uint8NDArray& pixels,
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100 Matrix& bbox,
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101 int halign = 0, int valign = 0,
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102 double rotation = 0.0);
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103
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104 virtual void text_to_strlist (const std::string& txt,
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105 std::list<text_renderer::string>& lst,
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106 Matrix& bbox,
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107 int halign = 0, int valign = 0,
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108 double rotation = 0.0);
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109
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110 virtual Matrix render_text (const std::string& txt,
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111 double x, double y, double z,
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112 int halign, int valign, double rotation = 0.0);
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113
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114 virtual void draw_pixels (int w, int h, const float *data);
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115 virtual void draw_pixels (int w, int h, const uint8_t *data);
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116 virtual void draw_pixels (int w, int h, const uint16_t *data);
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117
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118 virtual void render_grid (const std::string& gridstyle, const Matrix& ticks,
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119 double lim1, double lim2,
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120 double p1, double p1N, double p2, double p2N,
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121 int xyz, bool is_3D);
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122
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123 virtual void render_tickmarks (const Matrix& ticks, double lim1, double lim2,
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124 double p1, double p1N, double p2, double p2N,
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125 double dx, double dy, double dz,
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126 int xyz, bool doubleside);
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127
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128 virtual void render_ticktexts (const Matrix& ticks,
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129 const string_vector& ticklabels,
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130 double lim1, double lim2,
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131 double p1, double p2,
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132 int xyz, int ha, int va,
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133 int& wmax, int& hmax);
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134
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135 private:
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136
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137 // No copying!
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138
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139 opengl_renderer (const opengl_renderer&);
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140
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141 opengl_renderer& operator = (const opengl_renderer&);
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142
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143 bool is_nan_or_inf (double x, double y, double z) const
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144 {
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145 return (octave::math::isnan (x) || octave::math::isnan (y) || octave::math::isnan (z)
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146 || octave::math::isinf (x) || octave::math::isinf (y) || octave::math::isinf (z));
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147 }
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148
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149 octave_uint8 clip_code (double x, double y, double z) const
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150 {
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151 return ((x < xmin ? 1 : 0)
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152 | (x > xmax ? 1 : 0) << 1
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153 | (y < ymin ? 1 : 0) << 2
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154 | (y > ymax ? 1 : 0) << 3
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155 | (z < zmin ? 1 : 0) << 4
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156 | (z > zmax ? 1 : 0) << 5
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157 | (is_nan_or_inf (x, y, z) ? 0 : 1) << 6);
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158 }
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159
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160 void set_normal (int bfl_mode, const NDArray& n, int j, int i);
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161
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162 unsigned int make_marker_list (const std::string& m, double size,
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163 bool filled) const;
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164
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165 void draw_axes_planes (const axes::properties& props);
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166 void draw_axes_boxes (const axes::properties& props);
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167
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168 void draw_axes_x_grid (const axes::properties& props);
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169 void draw_axes_y_grid (const axes::properties& props);
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170 void draw_axes_z_grid (const axes::properties& props);
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Markus Mützel <markus.muetzel@gmx.de>
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171
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172 void draw_axes_children (const axes::properties& props);
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173
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174 void draw_all_lights (const base_properties& props, std::list<graphics_object>& obj_list);
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175
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176 private:
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177 // The graphics toolkit associated with the figure being rendered.
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178 graphics_toolkit toolkit;
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179
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180 // axes transformation data
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181 graphics_xform xform;
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182
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183 // axis limits in model scaled coordinate
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184 double xmin, xmax;
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185 double ymin, ymax;
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186 double zmin, zmax;
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187
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188 // Z projection limits in windows coordinate
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189 double xZ1, xZ2;
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190
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191 // call lists identifiers for markers
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192 unsigned int marker_id, filled_marker_id;
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193
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194 // camera information for primitive sorting and lighting
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195 ColumnVector camera_pos, camera_dir, view_vector;
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196
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197 // interpreter to be used by text_to_pixels
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198 caseless_str interpreter;
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199
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200 text_renderer txt_renderer;
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201
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202 // light object present and visible
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203 int num_lights;
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204 unsigned int current_light;
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205 int max_lights;
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mmuetzel <markus.muetzel@gmx.de>
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206
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207 private:
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208 class patch_tesselator;
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209 };
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210 }
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211
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212 #endif