source/3d/catalogue.cpp

   1 #include <msp/core/maputils.h>
   2 #include <msp/gl/meshbuilder.h>
   3 #include "libr2c2/trackappearance.h"
   4 #include "catalogue.h"
   5 #include "signaltype.h"
   6 #include "tracktype.h"
   7 #include "vehicletype.h"
   8
   9 using namespace std;
  10 using namespace Msp;
  11
  12 namespace R2C2 {
  13
  14 Catalogue3D::Catalogue3D(Catalogue &c):
  15         catalogue(c)
  16 {
  17         const list<DataFile::CollectionSource *> &src = catalogue.get_sources();
  18         for(list<DataFile::CollectionSource *>::const_iterator i=src.begin(); i!=src.end(); ++i)
  19                 add_source(**i);
  20         catalogue.signal_source_added.connect(sigc::mem_fun(static_cast<DataFile::Collection *>(this), &Catalogue3D::add_source));
  21 }
  22
  23 Catalogue3D::~Catalogue3D()
  24 {
  25         for(map<const ObjectType *, ObjectType3D *>::iterator i=objects.begin(); i!=objects.end(); ++i)
  26                 delete i->second;
  27 }
  28
  29 const ObjectType3D &Catalogue3D::get_3d(const ObjectType &ot)
  30 {
  31         ObjectMap::iterator i = objects.find(&ot);
  32         if(i!=objects.end())
  33                 return *i->second;
  34
  35         ObjectType3D *ot3d = 0;
  36         if(const TrackType *tt = dynamic_cast<const TrackType *>(&ot))
  37                 ot3d = new TrackType3D(*this, *tt);
  38         else if(const SignalType *st = dynamic_cast<const SignalType *>(&ot))
  39                 ot3d = new SignalType3D(*this, *st);
  40         else if(const VehicleType *vt = dynamic_cast<const VehicleType *>(&ot))
  41                 ot3d = new VehicleType3D(*this, *vt);
  42         else
  43                 throw key_error(&ot);
  44
  45         objects[&ot] = ot3d;
  46         return *ot3d;
  47 }
  48
  49 const ObjectType3D &Catalogue3D::get_3d(const ObjectType &ot) const
  50 {
  51         return *get_item(objects, &ot);
  52 }
  53
  54 const GL::Mesh &Catalogue3D::get_endpoint_mesh(const TrackAppearance &appearance)
  55 {
  56         EndpointMap::iterator i = endpoint_meshes.find(&appearance);
  57         if(i!=endpoint_meshes.end())
  58                 return *i->second;
  59
  60         const Profile &ballast_profile = appearance.get_ballast_profile();
  61         const Vector &ballast_min = ballast_profile.get_min_coords();
  62         const Vector &ballast_max = ballast_profile.get_max_coords();
  63
  64         const Profile &rail_profile = appearance.get_rail_profile();
  65         const Vector &rail_min = rail_profile.get_min_coords();
  66         const Vector &rail_max = rail_profile.get_max_coords();
  67
  68         float gauge = appearance.get_gauge();
  69
  70         float width = max(max(-ballast_min.x, ballast_max.x)*2, gauge+(rail_max.x-rail_min.x)*2)+0.004;
  71         float height = ballast_max.y-ballast_min.y+rail_max.y-rail_min.y+0.01;
  72
  73         GL::Mesh *mesh = new GL::Mesh((GL::NORMAL3, GL::VERTEX3));
  74         GL::MeshBuilder bld(*mesh);
  75         bld.normal(1, 0, 0);
  76         bld.begin(GL::QUADS);
  77         bld.vertex(0, width/2, 0);
  78         bld.vertex(0, width/2, height);
  79         bld.vertex(0, -width/2, height);
  80         bld.vertex(0, -width/2, 0);
  81         bld.end();
  82
  83         endpoint_meshes[&appearance] = mesh;
  84         return *mesh;
  85 }
  86
  87 const GL::Mesh &Catalogue3D::get_endpoint_mesh(const TrackAppearance &appearance) const
  88 {
  89         return *get_item(endpoint_meshes, &appearance);
  90 }
  91
  92 } // namespace R2C2