8f24de831d
This change is the logical counterpart of SimGear's change from commit 79f869a7f32910197be72b21f6489fbbba02c836 that moved the following files from simgear/misc to simgear/io/iostreams: gzcontainerfile.cxx gzcontainerfile.hxx gzfstream.cxx (formerly zfstream.cxx) gzfstream.hxx (formerly zfstream.hxx) sgstream.cxx sgstream.hxx sgstream_test.cxx
118 lines
3.1 KiB
C++
118 lines
3.1 KiB
C++
// poidb.cxx -- points of interest management routines
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//
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// Written by Christian Schmitt, March 2013
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <istream> // std::ws
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#include "poidb.hxx"
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#include <simgear/compiler.h>
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#include <simgear/debug/logstream.hxx>
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#include <simgear/math/sg_geodesy.hxx>
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#include <simgear/misc/sg_path.hxx>
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#include <simgear/structure/exception.hxx>
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#include <simgear/io/iostreams/sgstream.hxx>
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#include <Navaids/NavDataCache.hxx>
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using std::string;
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static FGPositioned::Type
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mapPOITypeToFGPType(int aTy)
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{
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switch (aTy) {
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case 10: return FGPositioned::COUNTRY;
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case 12: return FGPositioned::CITY;
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case 13: return FGPositioned::TOWN;
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case 14: return FGPositioned::VILLAGE;
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default:
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throw sg_range_exception("Unknown POI type", "FGNavDataCache::readPOIFromStream");
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}
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}
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namespace flightgear
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{
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const int LINES_IN_POI_DAT = 769019;
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static PositionedID readPOIFromStream(std::istream& aStream, NavDataCache* cache,
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FGPositioned::Type type = FGPositioned::INVALID)
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{
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if (aStream.eof()) {
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return 0;
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}
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aStream >> std::ws;
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if (aStream.peek() == '#') {
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aStream >> skipeol;
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return 0;
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}
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int rawType;
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aStream >> rawType;
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double lat, lon;
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std::string name;
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aStream >> lat >> lon;
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getline(aStream, name);
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SGGeod pos(SGGeod::fromDeg(lon, lat));
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name = simgear::strutils::strip(name);
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// the type can be forced by our caller, but normally we use the value
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// supplied in the .dat file
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if (type == FGPositioned::INVALID) {
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type = mapPOITypeToFGPType(rawType);
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}
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if (type == FGPositioned::INVALID) {
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return 0;
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}
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return cache->createPOI(type, name, pos);
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}
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// load and initialize the POI database
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bool poiDBInit(const SGPath& path)
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{
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sg_gzifstream in( path );
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if ( !in.is_open() ) {
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SG_LOG( SG_NAVAID, SG_ALERT, "Cannot open file: " << path );
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return false;
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}
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unsigned int lineNumber = 0;
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NavDataCache* cache = NavDataCache::instance();
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while (!in.eof()) {
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readPOIFromStream(in, cache);
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++lineNumber;
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if ((lineNumber % 100) == 0) {
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// every 100 lines
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unsigned int percent = (lineNumber * 100) / LINES_IN_POI_DAT;
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cache->setRebuildPhaseProgress(NavDataCache::REBUILD_POIS, percent);
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}
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} // of stream data loop
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return true;
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}
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} // of namespace flightgear
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