d3/scene.cc

   1 // Copyright 2003, 2004, 2005 David Hilvert <dhilvert@gmail.com>,
   2 //                                          <dhilvert@auricle.dyndns.org>,
   3 //                                          <dhilvert@ugcs.caltech.edu>
   4
   5 /*  This file is part of the Anti-Lamenessing Engine.
   6
   7     The Anti-Lamenessing Engine is free software; you can redistribute it and/or modify
   8     it under the terms of the GNU General Public License as published by
   9     the Free Software Foundation; either version 2 of the License, or
  10     (at your option) any later version.
  11
  12     The Anti-Lamenessing Engine is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15     GNU General Public License for more details.
  16
  17     You should have received a copy of the GNU General Public License
  18     along with the Anti-Lamenessing Engine; if not, write to the Free Software
  19     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20 */
  21
  22 #include "scene.h"
  23
  24 /*
  25  * See scene.h for details on these variables.
  26  */
  27
  28 scene::lod *scene::cl;
  29 ale_pos scene::perturb;
  30 ale_pos scene::edge_cost_multiplier = 0;
  31 ale_pos scene::angle_cost_multiplier = 0;
  32 ale_pos scene::front_clip = 0;
  33 ale_pos scene::input_decimation_exponent = 0;
  34 ale_pos scene::output_decimation_exponent = 0;
  35 int scene::output_clip = 0;
  36 ale_pos scene::rear_clip = 0;
  37 ale_pos scene::mpl_value = 1;
  38 ale_pos scene::mpu_value = 25;
  39 int scene::mpl_type = 0;
  40 int scene::mpu_type = 1;
  41 const char *scene::load_model_name = NULL;
  42 const char *scene::save_model_name = NULL;
  43 const ale_real scene::nearness = 0.01;
  44
  45 scene::space *scene::root_space = NULL;
  46 std::map<struct scene::space *, scene::spatial_info> scene::spatial_info_map;
  47
  48 // scene::spatial_info *scene::tracked_space = NULL;
  49
  50 unsigned long scene::total_ambiguity = 0;
  51 unsigned long scene::total_pixels = 0;
  52 unsigned long scene::total_divisions = 0;
  53 unsigned long scene::total_tsteps = 0;
  54
  55 double scene::occ_att = 0.50;
  56
  57 int scene::normalize_weights = 1;
  58
  59 double scene::falloff_exponent = 0;
  60 double scene::tc_multiplier = 0;
  61 unsigned int scene::ou_iterations = 10;
  62 unsigned int scene::pairwise_ambiguity = 3;
  63 const char *scene::pairwise_comparisons = "auto";
  64 int scene::d3px_count;
  65 double *scene::d3px_parameters;
  66 double scene::encounter_threshold = 0;
  67
  68 /*
  69  * Precision discriminator
  70  *
  71  * For some reason, colors that should be identical are calculated differently
  72  * along different computational pathways, either due to a compiler idiosyncrasy,
  73  * or due to an as-of-yet undiscovered bug in the code.  We use the following
  74  * constant in an effort to winnow out these discrepancies, which can sometimes
  75  * cause cycles in the adjustment preference function.
  76  */
  77
  78 #define DISCRIMINATOR 1e-5
  79
  80 /*
  81  * Functions.
  82  */
  83