114 lines
3.7 KiB
C++
114 lines
3.7 KiB
C++
/*
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DrawMap - a demo program for libosmscout
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Copyright (C) 2009 Tim Teulings
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <iostream>
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#include <osmscout/Database.h>
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#include <osmscout/MapService.h>
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#include <osmscout/BasemapDatabase.h>
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#include <osmscout/MapPainterCairo.h>
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#include <DrawMapCairo.h>
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/*
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Example for the nordrhein-westfalen.osm (to be executed in meson build directory):
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Demos/DrawMapCairo ../maps/nordrhein-westfalen ../stylesheets/standard.oss 800 480 51.51241 7.46525 70000 test.png
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*/
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osmscout::DatabaseParameter databaseParameter;
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osmscout::DatabaseRef database;
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osmscout::MapServiceRef mapService;
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osmscout::StyleConfigRef styleConfig;
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osmscout::BasemapDatabaseRef basemapDatabase;
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osmscout::MercatorProjection projection;
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osmscout::MapParameter drawParameter;
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osmscout::AreaSearchParameter searchParameter;
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osmscout::MapData data;
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int DrawMapCairoInit(int argc, char* argv[])
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{
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database=std::make_shared<osmscout::Database>(databaseParameter);
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if (!database->Open("data/nordrhein-westfalen-latest/")) {
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std::cerr << "Cannot open database" << std::endl;
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return -1;
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}
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mapService=std::make_shared<osmscout::MapService>(database);
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styleConfig = std::make_shared<osmscout::StyleConfig>(database->GetTypeConfig());
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if (!styleConfig->Load("data/standard.oss")) {
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std::cerr << "Cannot open style" << std::endl;
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return -1;
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}
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drawParameter.SetFontName("/usr/share/fonts/TTF/LiberationSans-Regular.ttf");
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drawParameter.SetFontSize(3.0);
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drawParameter.SetRenderSeaLand(true);
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drawParameter.SetRenderUnknowns(false);
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drawParameter.SetRenderBackground(false);
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drawParameter.SetRenderContourLines(false);
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drawParameter.SetRenderHillShading(false);
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//drawParameter.SetIconMode(args.iconMode);
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//drawParameter.SetIconPaths(args.iconPaths);
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drawParameter.SetDebugData(false);
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drawParameter.SetDebugPerformance(false);
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drawParameter.SetLabelLineMinCharCount(15);
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drawParameter.SetLabelLineMaxCharCount(30);
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drawParameter.SetLabelLineFitToArea(true);
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return 0;
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}
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int DrawMapCairo(cairo_surface_t *surface, double lat, double lon, unsigned int zoomlevel, double direction)
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{
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osmscout::GeoCoord center(lat, lon);
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osmscout::Magnification zoom{osmscout::Magnification::magClose};
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std::list<osmscout::TileRef> tiles;
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osmscout::MapPainterCairo painter(styleConfig);
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cairo_t *cairo=cairo_create(surface);
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assert(database);
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assert(database->IsOpen());
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assert(mapService);
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assert(styleConfig);
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zoom.SetMagnification(zoomlevel);
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projection.Set(center, direction, zoom, 96, 800, 600);
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mapService->LookupTiles(projection, tiles);
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mapService->LoadMissingTileData(searchParameter,*styleConfig, tiles);
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mapService->AddTileDataToMapData(tiles, data);
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mapService->GetGroundTiles(projection, data.groundTiles);
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//LoadBaseMapTiles(data.baseMapTiles);
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osmscout::GeoBox boundingBox;
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projection.GetDimensions(boundingBox);
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if (!painter.DrawMap(projection, drawParameter, data, cairo))
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std::cerr << "Cannot paint" << std::endl;;
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cairo_destroy(cairo);
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return 0;
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}
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