source/designer/designer.cpp

   1 /* $Id$
   2
   3 This file is part of R²C²
   4 Copyright © 2006-2010 Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #include <signal.h>
   9 #include <algorithm>
  10 #include <cmath>
  11 #include <msp/fs/utils.h>
  12 #include <msp/gl/blend.h>
  13 #include <msp/gl/framebuffer.h>
  14 #include <msp/gl/matrix.h>
  15 #include <msp/gl/misc.h>
  16 #include <msp/gl/projection.h>
  17 #include <msp/gl/rendermode.h>
  18 #include <msp/gl/select.h>
  19 #include <msp/gl/tests.h>
  20 #include <msp/gl/texture2d.h>
  21 #include <msp/input/keys.h>
  22 #include <msp/io/print.h>
  23 #include <msp/strings/codec.h>
  24 #include <msp/strings/lexicalcast.h>
  25 #include <msp/strings/utf8.h>
  26 #include <msp/strings/utils.h>
  27 #include <msp/time/units.h>
  28 #include <msp/time/utils.h>
  29 #include "libr2c2/route.h"
  30 #include "libr2c2/tracktype.h"
  31 #include "libr2c2/zone.h"
  32 #include "3d/path.h"
  33 #include "designer.h"
  34 #include "input.h"
  35 #include "layoutbar.h"
  36 #include "manipulator.h"
  37 #include "measure.h"
  38 #include "routebar.h"
  39 #include "selection.h"
  40 #include "svgexporter.h"
  41 #include "trackbar.h"
  42 #include "trackproperties.h"
  43 #include "zonebar.h"
  44 #include "zoneproperties.h"
  45
  46 using namespace std;
  47 using namespace R2C2;
  48 using namespace Msp;
  49
  50 Application::RegApp<Designer> Designer::reg;
  51
  52 Designer::Designer(int argc, char **argv):
  53         window(1280, 960),
  54         ui_res("r2c2.res"),
  55         root(ui_res, window),
  56         base_object(0),
  57         cur_route(0),
  58         cur_zone(0),
  59         mode(SELECT),
  60         manipulator(*this, root, selection),
  61         measure(*this),
  62         camera_ctl(*this, root, camera),
  63         track_wrap(*this, selection)
  64 {
  65         window.set_title("Railway Designer");
  66         window.signal_close.connect(sigc::bind(sigc::mem_fun(this, &Designer::exit), 0));
  67
  68         selection.signal_changed.connect(sigc::mem_fun(this, &Designer::selection_changed));
  69         manipulator.signal_status.connect(sigc::mem_fun(this, &Designer::manipulation_status));
  70         manipulator.signal_done.connect(sigc::mem_fun(this, &Designer::manipulation_done));
  71         measure.signal_changed.connect(sigc::mem_fun(this, &Designer::measure_changed));
  72         measure.signal_done.connect(sigc::mem_fun(this, &Designer::measure_done));
  73
  74         // Setup catalogue and layout
  75         DataFile::load(catalogue, "tracks.dat");
  76
  77         cat_layout_3d = new Layout3D(catalogue.get_layout());
  78
  79         layout = new Layout(catalogue);
  80         layout_3d = new Layout3D(*layout);
  81
  82         layout->signal_track_added.connect(sigc::mem_fun(this, &Designer::track_added));
  83         layout->signal_track_removed.connect(sigc::mem_fun(this, &Designer::track_removed));
  84
  85         if(argc>1)
  86         {
  87                 filename = argv[1];
  88                 DataFile::load(*layout, argv[1]);
  89
  90                 if(!layout->get_base().empty())
  91                 {
  92                         base_object = new GL::Object;
  93                         DataFile::load(*base_object, layout->get_base());
  94                 }
  95         }
  96
  97         // Setup OpenGL
  98         GL::enable(GL_CULL_FACE);
  99
 100         pipeline = new GL::Pipeline(window.get_width(), window.get_height(), false);
 101         pipeline->set_camera(&camera);
 102         pipeline->add_renderable_for_pass(layout_3d->get_scene(), 0);
 103         if(base_object)
 104                 pipeline->add_renderable(*base_object);
 105         pipeline->add_renderable_for_pass(track_wrap, "unlit");
 106         pipeline->add_renderable_for_pass(layout_3d->get_path_scene(), "unlit");
 107         pipeline->add_renderable_for_pass(layout_3d->get_endpoint_scene(), "unlit");
 108
 109         light.set_position(0, -0.259, 0.966, 0);
 110         lighting.attach(0, light);
 111
 112         GL::PipelinePass *pass = &pipeline->add_pass(0);
 113         pass->lighting = &lighting;
 114         pass->depth_test = &GL::DepthTest::lequal();
 115
 116         pass = &pipeline->add_pass("unlit");
 117         pass->depth_test = &GL::DepthTest::lequal();
 118         pass->blend = &GL::Blend::alpha();
 119
 120         pass = &pipeline->add_pass("blended");
 121         pass->lighting = &lighting;
 122         pass->depth_test = &GL::DepthTest::lequal();
 123         pass->blend = &GL::Blend::alpha();
 124
 125         camera.set_up_direction(GL::Vector3(0, 0, 1));
 126         camera.set_look_direction(GL::Vector3(0, 0.5, -0.866));
 127
 128         // Setup UI
 129         root.signal_key_press.connect(sigc::mem_fun(this, &Designer::key_press));
 130         root.signal_button_press.connect(sigc::mem_fun(this, &Designer::button_press));
 131         root.signal_pointer_motion.connect(sigc::mem_fun(this, &Designer::pointer_motion));
 132         root.signal_tooltip.connect(sigc::mem_fun(this, &Designer::tooltip));
 133
 134         toolbars.push_back(new Layoutbar(*this));
 135         toolbars.push_back(new Trackbar(*this));
 136         toolbars.push_back(new Routebar(*this));
 137         toolbars.push_back(new Zonebar(*this));
 138         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
 139         {
 140                 root.add(**i);
 141                 if(i!=toolbars.begin())
 142                         (*i)->expand(false);
 143                 (*i)->signal_expanded.connect(sigc::hide(sigc::mem_fun(this, &Designer::arrange_toolbars)));
 144         }
 145         arrange_toolbars();
 146
 147         GLtk::Panel *statusbar = new GLtk::Panel;
 148         root.add(*statusbar);
 149         statusbar->set_size(window.get_width(), 20);
 150         statusbar->set_focusable(false);
 151
 152         lbl_status = new GLtk::Label;
 153         statusbar->add(*lbl_status);
 154         lbl_status->set_geometry(GLtk::Geometry(20, 2, 300, 16));
 155
 156         overlay = new Overlay3D(window, camera, ui_res.get_default_font());
 157
 158         camera_ctl.view_all();
 159
 160         const Layout3D::TrackMap &tracks = layout_3d->get_tracks();
 161         for(Layout3D::TrackMap::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 162                 update_track_icon(*i->second);
 163 }
 164
 165 Designer::~Designer()
 166 {
 167         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
 168                 delete *i;
 169         delete overlay;
 170         delete pipeline;
 171         delete base_object;
 172         delete layout_3d;
 173         delete layout;
 174         delete cat_layout_3d;
 175 }
 176
 177 int Designer::main()
 178 {
 179         window.show();
 180
 181         mode = SELECT;
 182
 183         return Application::main();
 184 }
 185
 186 void Designer::save()
 187 {
 188         InputDialog *input = new InputDialog(*this, "Save layout", filename);
 189         input->signal_accept.connect(sigc::mem_fun(layout, &Layout::save));
 190 }
 191
 192 void Designer::quit()
 193 {
 194         exit(0);
 195 }
 196
 197 void Designer::new_track()
 198 {
 199         if(mode!=SELECT)
 200                 return;
 201
 202         mode = CATALOGUE;
 203         lbl_status->set_text("Select new track or press Esc to cancel");
 204 }
 205
 206 void Designer::erase_tracks()
 207 {
 208         if(mode!=SELECT)
 209                 return;
 210
 211         set<Track *> tracks = selection.get_tracks();
 212         selection.clear();
 213         for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
 214         {
 215                 overlay->clear(layout_3d->get_track(**i));
 216                 delete *i;
 217         }
 218 }
 219
 220 void Designer::track_properties()
 221 {
 222         if(mode!=SELECT || selection.empty())
 223                 return;
 224
 225         TrackProperties *track_prop = new TrackProperties(selection);
 226         root.add(*track_prop);
 227         const GLtk::Geometry &root_geom = root.get_geometry();
 228         const GLtk::Geometry &dlg_geom = track_prop->get_geometry();
 229         track_prop->set_position((root_geom.w-dlg_geom.w)/2, (root_geom.h-dlg_geom.h)/2);
 230
 231         track_prop->signal_response.connect(sigc::mem_fun(this, &Designer::track_properties_response));
 232 }
 233
 234 void Designer::extend_track()
 235 {
 236         if(mode!=SELECT)
 237                 return;
 238
 239         if(manipulator.start_extend())
 240                 mode = MANIPULATE;
 241 }
 242
 243 void Designer::connect_tracks()
 244 {
 245         if(mode!=SELECT)
 246                 return;
 247
 248         manipulator.connect();
 249 }
 250
 251 void Designer::flatten_tracks()
 252 {
 253         if(mode!=SELECT)
 254                 return;
 255
 256         manipulator.flatten();
 257 }
 258
 259 void Designer::svg_export()
 260 {
 261         InputDialog *input = new InputDialog(*this, "SVG export", FS::basepart(filename)+".svg");
 262         input->signal_accept.connect(sigc::mem_fun(this, &Designer::svg_export_accept));
 263 }
 264
 265 void Designer::edit_route(Route *r)
 266 {
 267         cur_route = r;
 268         cur_zone = 0;
 269         if(cur_route)
 270                 show_route(*cur_route);
 271         else
 272                 clear_paths();
 273 }
 274
 275 void Designer::rename_route()
 276 {
 277         if(mode!=SELECT || !cur_route)
 278                 return;
 279
 280         InputDialog *input = new InputDialog(*this, "Route name", cur_route->get_name());
 281         input->signal_accept.connect(sigc::mem_fun(this, &Designer::route_name_accept));
 282 }
 283
 284 void Designer::add_selection_to_route()
 285 {
 286         if(!cur_route)
 287                 return;
 288
 289         try
 290         {
 291                 cur_route->add_tracks(selection.get_tracks());
 292         }
 293         catch(const Exception &e)
 294         {
 295                 lbl_status->set_text(e.what());
 296         }
 297
 298         show_route(*cur_route);
 299 }
 300
 301 void Designer::edit_zone(Zone *z)
 302 {
 303         cur_zone = z;
 304         cur_route = 0;
 305         if(cur_zone)
 306                 show_zone(*cur_zone);
 307         else
 308                 clear_paths();
 309 }
 310
 311 void Designer::zone_properties()
 312 {
 313         if(!cur_zone)
 314                 return;
 315
 316         ZoneProperties *zone_prop = new ZoneProperties(*cur_zone);
 317         root.add(*zone_prop);
 318         const GLtk::Geometry &root_geom = root.get_geometry();
 319         const GLtk::Geometry &dlg_geom = zone_prop->get_geometry();
 320         zone_prop->set_position((root_geom.w-dlg_geom.w)/2, (root_geom.h-dlg_geom.h)/2);
 321 }
 322
 323 void Designer::add_selection_to_zone()
 324 {
 325         if(!cur_zone)
 326                 return;
 327
 328         try
 329         {
 330                 cur_zone->add_tracks(selection.get_tracks());
 331         }
 332         catch(const Exception &e)
 333         {
 334                 lbl_status->set_text(e.what());
 335         }
 336
 337         show_zone(*cur_zone);
 338 }
 339
 340 Point Designer::map_pointer_to_ground(int x, int y)
 341 {
 342         float xf = x*2.0/window.get_width()-1.0;
 343         float yf = y*2.0/window.get_height()-1.0;
 344         GL::Vector4 vec = camera.unproject(GL::Vector4(xf, yf, 0, 0));
 345         const GL::Vector3 &pos = camera.get_position();
 346
 347         return Point(pos.x-vec.x*pos.z/vec.z, pos.y-vec.y*pos.z/vec.z);
 348 }
 349
 350 void Designer::tick()
 351 {
 352         const Msp::Time::TimeStamp t = Msp::Time::now();
 353         float dt = (t-last_tick)/Msp::Time::sec;
 354         last_tick = t;
 355
 356         if(mode==MANIPULATE_DONE)
 357                 mode = SELECT;
 358
 359         window.tick();
 360         root.tick();
 361         camera_ctl.tick(dt);
 362
 363         for(list<Track *>::iterator i=new_tracks.begin(); i!=new_tracks.end(); ++i)
 364                 layout_3d->get_track(**i).get_path().set_mask(0);
 365         new_tracks.clear();
 366
 367         render();
 368
 369         window.swap_buffers();
 370 }
 371
 372 void Designer::key_press(unsigned key, unsigned mod, wchar_t)
 373 {
 374         key = Input::key_from_sys(key);
 375         mod = Input::mod_from_sys(mod);
 376
 377         if(key==Msp::Input::KEY_N && (mod&Input::MOD_SHIFT))
 378                 extend_track();
 379         else if(key==Msp::Input::KEY_N)
 380                 new_track();
 381         else if(key==Msp::Input::KEY_G)
 382         {
 383                 manipulator.start_move();
 384                 mode = MANIPULATE;
 385         }
 386         else if(key==Msp::Input::KEY_R)
 387         {
 388                 manipulator.start_rotate();
 389                 mode = MANIPULATE;
 390         }
 391         else if(key==Msp::Input::KEY_D)
 392         {
 393                 manipulator.duplicate();
 394                 manipulator.start_move();
 395                 mode = MANIPULATE;
 396         }
 397         else if(key==Msp::Input::KEY_W)
 398                 save();
 399         else if(key==Msp::Input::KEY_PLUS)
 400                 selection.select_more();
 401         else if(key==Msp::Input::KEY_L && (mod&Input::MOD_SHIFT))
 402                 selection.select_blocks();
 403         else if(key==Msp::Input::KEY_L)
 404                 selection.select_linked();
 405         else if(key==Msp::Input::KEY_M)
 406         {
 407                 measure.start();
 408                 mode = MEASURE;
 409         }
 410         else if(key==Msp::Input::KEY_Z)
 411         {
 412                 manipulator.start_elevate();
 413                 mode = MANIPULATE;
 414         }
 415         else if(key==Msp::Input::KEY_ESC)
 416         {
 417                 if(mode==MANIPULATE)
 418                         manipulator.cancel();
 419                 else if(mode==CATALOGUE)
 420                         mode = SELECT;
 421                 else
 422                         selection.clear();
 423         }
 424         else if(key==Msp::Input::KEY_X)
 425                 erase_tracks();
 426         else if(key==Msp::Input::KEY_F && (mod&Input::MOD_SHIFT))
 427         {
 428                 const set<Track *> &tracks = selection.get_tracks();
 429                 const set<Track *> &ltracks = layout->get_tracks();
 430                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 431                 {
 432                         (*i)->set_flex(!(*i)->get_flex());
 433                         (*i)->break_links();
 434                         for(set<Track *>::const_iterator j=ltracks.begin(); j!=ltracks.end(); ++j)
 435                                 if(*j!=*i)
 436                                         (*i)->snap_to(**j, true);
 437
 438                         update_track_icon(layout_3d->get_track(**i));
 439                 }
 440         }
 441         else if(key==Msp::Input::KEY_F)
 442                 flatten_tracks();
 443         else if(key==Msp::Input::KEY_E && (mod&Input::MOD_SHIFT))
 444                 manipulator.even_slope(true);
 445         else if(key==Msp::Input::KEY_E)
 446                 manipulator.even_slope();
 447         else if(key==Msp::Input::KEY_A)
 448         {
 449                 if(cur_route)
 450                         add_selection_to_route();
 451                 else if(cur_zone)
 452                         add_selection_to_zone();
 453         }
 454         else if(key==Msp::Input::KEY_C)
 455                 connect_tracks();
 456         else if(key==Msp::Input::KEY_V)
 457                 svg_export();
 458         else if(key==Msp::Input::KEY_P)
 459                 track_properties();
 460 }
 461
 462 void Designer::button_press(int x, int y, unsigned btn, unsigned mod)
 463 {
 464         y = window.get_height()-y-1;
 465         mod = Input::mod_from_sys(mod);
 466
 467         Point ground = map_pointer_to_ground(x, y);
 468
 469         if(mode==CATALOGUE)
 470         {
 471                 if(btn==1)
 472                 {
 473                         Track3D *ctrack = pick_track(x, y);
 474                         if(ctrack)
 475                         {
 476                                 Track *track = new Track(*layout, ctrack->get_track().get_type());
 477                                 track->set_position(ground);
 478
 479                                 selection.clear();
 480                                 selection.add_track(track);
 481
 482                                 mode = SELECT;
 483                         }
 484                 }
 485                 else
 486                         mode = SELECT;
 487         }
 488         else if(mode==SELECT)
 489         {
 490                 if(btn==1)
 491                 {
 492                         Track3D *track = pick_track(x, y);
 493                         if(track)
 494                         {
 495                                 if(!(mod&Input::MOD_SHIFT))
 496                                         selection.clear();
 497                                 selection.toggle_track(&track->get_track());
 498                         }
 499                 }
 500         }
 501         else if(mode==MEASURE)
 502                 measure.button_press(x, y, ground.x, ground.y, btn);
 503 }
 504
 505 void Designer::pointer_motion(int x, int y)
 506 {
 507         y = window.get_height()-y-1;
 508
 509         if(!root.get_child_at(x, y))
 510         {
 511                 Point ground = map_pointer_to_ground(x, y);
 512                 measure.pointer_motion(x, y, ground.x, ground.y);
 513         }
 514 }
 515
 516 void Designer::apply_camera()
 517 {
 518         if(mode==CATALOGUE)
 519         {
 520                 GL::matrix_mode(GL::PROJECTION);
 521                 GL::load_identity();
 522                 GL::frustum_centered(0.11046, 0.082843, 0.1, 10);
 523                 GL::matrix_mode(GL::MODELVIEW);
 524                 GL::load_identity();
 525                 GL::translate(0, 0, -1);
 526         }
 527         else
 528                 camera.apply();
 529 }
 530
 531 void Designer::render()
 532 {
 533         GL::Framebuffer::system().clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
 534
 535         if(mode==CATALOGUE)
 536         {
 537                 apply_camera();
 538                 cat_layout_3d->get_scene().render();
 539         }
 540         else
 541         {
 542                 pipeline->render_all();
 543                 GL::enable(GL_CULL_FACE);
 544                 {
 545                         GL::Bind bind_blend(GL::Blend::alpha());
 546                         overlay->render(0);
 547                 }
 548
 549                 GL::Bind bind_depth(GL::DepthTest::lequal());
 550                 if(mode==MEASURE)
 551                         measure.render();
 552         }
 553
 554         GL::matrix_mode(GL::PROJECTION);
 555         GL::load_identity();
 556         GL::ortho_bottomleft(window.get_width(), window.get_height());
 557         GL::matrix_mode(GL::MODELVIEW);
 558         GL::load_identity();
 559
 560         GL::disable(GL::DEPTH_TEST);
 561
 562         GL::Bind bind_blend(GL::Blend::alpha());
 563         root.render();
 564         GL::Texture::unbind();
 565 }
 566
 567 void Designer::track_added(Track &trk)
 568 {
 569         new_tracks.push_back(&trk);
 570 }
 571
 572 void Designer::track_removed(Track &trk)
 573 {
 574         list<Track *>::iterator i = find(new_tracks.begin(), new_tracks.end(), &trk);
 575         if(i!=new_tracks.end())
 576                 new_tracks.erase(i);
 577 }
 578
 579 Track3D *Designer::pick_track(int x, int y)
 580 {
 581         Layout3D *l = layout_3d;
 582         if(mode==CATALOGUE)
 583                 l = cat_layout_3d;
 584
 585         float xx = ((float(x)-window.get_width()/2)/window.get_height())*0.82843;
 586         float yy = (float(y)/window.get_height()-0.5)*0.82843;
 587         float size = 4.0/window.get_height()*0.82843;
 588
 589         apply_camera();
 590
 591         return l->pick_track(xx, yy, size);
 592 }
 593
 594 void Designer::update_track_icon(Track3D &track)
 595 {
 596         overlay->clear(track);
 597
 598         if(track.get_track().get_flex())
 599                 overlay->add_graphic(track, "flex");
 600
 601         if(unsigned sid = track.get_track().get_sensor_id())
 602         {
 603                 overlay->add_graphic(track, "sensor");
 604                 overlay->set_label(track, lexical_cast(sid));
 605         }
 606         else if(unsigned tid = track.get_track().get_turnout_id())
 607         {
 608                 if(tid<0x800)
 609                 {
 610                         overlay->add_graphic(track, "turnout");
 611                         overlay->set_label(track, lexical_cast(tid));
 612                 }
 613         }
 614 }
 615
 616 void Designer::selection_changed()
 617 {
 618         const set<Track *> &tracks = selection.get_tracks();
 619         if(tracks.empty())
 620                 lbl_status->set_text(string());
 621         else
 622         {
 623                 float len = 0;
 624                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 625                         len += (*i)->get_type().get_total_length();
 626                 lbl_status->set_text(format("%.2fm of track selected\n", len));
 627         }
 628 }
 629
 630 void Designer::manipulation_status(const string &status)
 631 {
 632         lbl_status->set_text(status);
 633 }
 634
 635 void Designer::manipulation_done(bool)
 636 {
 637         mode = MANIPULATE_DONE;
 638         selection_changed();
 639 }
 640
 641 void Designer::measure_changed()
 642 {
 643         float pard = measure.get_parallel_distance()*1000;
 644         float perpd = measure.get_perpendicular_distance()*1000;
 645         float d = sqrt(pard*pard+perpd*perpd);
 646         float adiff = measure.get_angle_difference()*180/M_PI;
 647         string info = format("Par %.1fmm - Perp %.1fmm - Total %.1fmm - Angle %.1f°", pard, perpd, d, adiff);
 648         lbl_status->set_text(info);
 649 }
 650
 651 void Designer::measure_done()
 652 {
 653         mode = SELECT;
 654         selection_changed();
 655 }
 656
 657 void Designer::arrange_toolbars()
 658 {
 659         unsigned x = 0;
 660         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
 661         {
 662                 const GLtk::Geometry &geom = (*i)->get_geometry();
 663                 (*i)->set_position(x, window.get_height()-geom.h);
 664                 x += geom.w;
 665         }
 666 }
 667
 668 void Designer::track_properties_response(int)
 669 {
 670         const set<Track *> &tracks = selection.get_tracks();
 671         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 672                 update_track_icon(layout_3d->get_track(**i));
 673 }
 674
 675 void Designer::route_name_accept(const string &text)
 676 {
 677         if(cur_route)
 678                 cur_route->set_name(text);
 679 }
 680
 681 void Designer::svg_export_accept(const string &text)
 682 {
 683         SvgExporter svg_exp(*layout);
 684         svg_exp.save(text);
 685 }
 686
 687 string Designer::tooltip(int x, int y)
 688 {
 689         if(Track3D *t3d = pick_track(x, y))
 690         {
 691                 const Track &track = t3d->get_track();
 692                 const TrackType &ttype = track.get_type();
 693                 string info = format("%d %s", ttype.get_article_number(), ttype.get_description());
 694                 if(mode!=CATALOGUE && abs(track.get_slope())>1e-4)
 695                         info += format(" (slope %.1f%%)", abs(track.get_slope()/ttype.get_total_length()*100));
 696                 if(track.get_turnout_id())
 697                         info += format(" (turnout %d)", track.get_turnout_id());
 698                 else if(track.get_sensor_id())
 699                         info += format(" (sensor %d)", track.get_sensor_id());
 700
 701                 return info;
 702         }
 703
 704         return string();
 705 }
 706
 707 void Designer::clear_paths()
 708 {
 709         const set<Track *> &ltracks = layout->get_tracks();
 710         for(set<Track *>::iterator i=ltracks.begin(); i!=ltracks.end(); ++i)
 711         {
 712                 Track3D &t3d = layout_3d->get_track(**i);
 713                 t3d.get_path().set_mask(0);
 714         }
 715 }
 716
 717 void Designer::show_route(const Route &route)
 718 {
 719         clear_paths();
 720
 721         const set<Track *> &rtracks = route.get_tracks();
 722         for(set<Track *>::iterator i=rtracks.begin(); i!=rtracks.end(); ++i)
 723         {
 724                 Track3D &t3d = layout_3d->get_track(**i);
 725                 t3d.get_path().set_color(GL::Color(0.5, 0.8, 1.0));
 726                 int path = -1;
 727                 if(unsigned tid = (*i)->get_turnout_id())
 728                         path = route.get_turnout(tid);
 729                 if(path>=0)
 730                         t3d.get_path().set_path(path);
 731                 else
 732                         t3d.get_path().set_mask((*i)->get_type().get_paths());
 733         }
 734 }
 735
 736 void Designer::show_zone(const Zone &zone)
 737 {
 738         clear_paths();
 739
 740         const Zone::TrackSet &ztracks = zone.get_tracks();
 741         for(Zone::TrackSet::const_iterator i=ztracks.begin(); i!=ztracks.end(); ++i)
 742         {
 743                 Track3D &t3d = layout_3d->get_track(**i);
 744                 t3d.get_path().set_color(GL::Color(0.8, 1.0, 0.5));
 745                 t3d.get_path().set_mask((*i)->get_type().get_paths());
 746         }
 747 }