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(Catalogue &c):
  18         catalogue(c),
  19         endpoint_mesh((GL::NORMAL3, GL::VERTEX3))
  20 {
  21         catalogue.signal_track_added.connect(sigc::mem_fun(this, &Catalogue3D::track_added));
  22
  23         const map<unsigned, TrackType *> &trks = catalogue.get_tracks();
  24         for(map<unsigned, TrackType *>::const_iterator i=trks.begin(); i!=trks.end(); ++i)
  25                 track_added(*i->second);
  26
  27         ballast_material.set_diffuse(GL::Color(0.25, 0.25, 0.25));
  28         rail_material.set_diffuse(GL::Color(0.85, 0.85, 0.85));
  29
  30         build_endpoint_mesh();
  31 }
  32
  33 Catalogue3D::~Catalogue3D()
  34 {
  35         for(map<const TrackType *, TrackType3D *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
  36                 delete i->second;
  37 }
  38
  39 const TrackType3D &Catalogue3D::get_track(const TrackType &tt) const
  40 {
  41         map<const TrackType *, TrackType3D *>::const_iterator i = tracks.find(&tt);
  42         if(i==tracks.end())
  43                 throw KeyError("Unknown track type");
  44
  45         return *i->second;
  46 }
  47
  48 void Catalogue3D::track_added(const TrackType &track)
  49 {
  50         tracks[&track] = new TrackType3D(*this, track);
  51 }
  52
  53 void Catalogue3D::build_endpoint_mesh()
  54 {
  55         const Profile &ballast_profile = catalogue.get_ballast_profile();
  56         const Point &ballast_min = ballast_profile.get_min_coords();
  57         const Point &ballast_max = ballast_profile.get_max_coords();
  58
  59         const Profile &rail_profile = catalogue.get_rail_profile();
  60         const Point &rail_min = rail_profile.get_min_coords();
  61         const Point &rail_max = rail_profile.get_max_coords();
  62
  63         float gauge = catalogue.get_gauge();
  64
  65         float width = max(max(-ballast_min.x, ballast_max.x)*2, gauge+(rail_max.x-rail_min.x)*2)+0.004;
  66         float height = ballast_max.y-ballast_min.y+rail_max.y-rail_min.y+0.01;
  67
  68         GL::MeshBuilder bld(endpoint_mesh);
  69         bld.normal(1, 0, 0);
  70         bld.begin(GL::QUADS);
  71         bld.vertex(0, width/2, 0);
  72         bld.vertex(0, width/2, height);
  73         bld.vertex(0, -width/2, height);
  74         bld.vertex(0, -width/2, 0);
  75         bld.end();
  76 }
  77
  78 } // namespace Marklin