source/3d/catalogue.cpp

   1 /* $Id$
   2
   3 This file is part of the MSP Märklin suite
   4 Copyright © 2010 Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #include <msp/gl/meshbuilder.h>
   9 #include "catalogue.h"
  10 #include "tracktype.h"
  11
  12 using namespace std;
  13 using namespace Msp;
  14
  15 namespace Marklin {
  16
  17 Catalogue3D::Catalogue3D(const Catalogue &c):
  18         catalogue(c),
  19         endpoint_mesh((GL::NORMAL3, GL::VERTEX3))
  20 {
  21         const map<unsigned, TrackType *> &trks = catalogue.get_tracks();
  22         for(map<unsigned, TrackType *>::const_iterator i=trks.begin(); i!=trks.end(); ++i)
  23                 tracks[i->second] = new TrackType3D(*this, *i->second);
  24
  25         ballast_material.set_diffuse(GL::Color(0.25, 0.25, 0.25));
  26         rail_material.set_diffuse(GL::Color(0.85, 0.85, 0.85));
  27
  28         build_endpoint_mesh();
  29 }
  30
  31 Catalogue3D::~Catalogue3D()
  32 {
  33         for(map<const TrackType *, TrackType3D *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
  34                 delete i->second;
  35 }
  36
  37 const TrackType3D &Catalogue3D::get_track(const TrackType &tt) const
  38 {
  39         map<const TrackType *, TrackType3D *>::const_iterator i = tracks.find(&tt);
  40         if(i==tracks.end())
  41                 throw KeyError("Unknown track type");
  42
  43         return *i->second;
  44 }
  45
  46 void Catalogue3D::build_endpoint_mesh()
  47 {
  48         const Profile &ballast_profile = catalogue.get_ballast_profile();
  49         const Point &ballast_min = ballast_profile.get_min_coords();
  50         const Point &ballast_max = ballast_profile.get_max_coords();
  51
  52         const Profile &rail_profile = catalogue.get_rail_profile();
  53         const Point &rail_min = rail_profile.get_min_coords();
  54         const Point &rail_max = rail_profile.get_max_coords();
  55
  56         float gauge = catalogue.get_gauge();
  57
  58         float width = max(max(-ballast_min.x, ballast_max.x)*2, gauge+(rail_max.x-rail_min.x)*2)+0.004;
  59         float height = ballast_max.y-ballast_min.y+rail_max.y-rail_min.y+0.01;
  60
  61         GL::MeshBuilder bld(endpoint_mesh);
  62         bld.normal(1, 0, 0);
  63         bld.begin(GL::QUADS);
  64         bld.vertex(0, width/2, 0);
  65         bld.vertex(0, width/2, height);
  66         bld.vertex(0, -width/2, height);
  67         bld.vertex(0, -width/2, 0);
  68         bld.end();
  69 }
  70
  71 } // namespace Marklin