X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FAirports%2Frunways.cxx;h=c3e48ecbbd67325b2993498d3f893fe002124b00;hb=e16f772e54216b0088ca9cb3f3b0fb062be8bfdb;hp=5c98af7ff46023ad8390e6524b2643a385996b28;hpb=4fca15fa1d215b47ee971cd487ca43d5ec0f3f37;p=flightgear.git diff --git a/src/Airports/runways.cxx b/src/Airports/runways.cxx index 5c98af7ff..c3e48ecbb 100644 --- a/src/Airports/runways.cxx +++ b/src/Airports/runways.cxx @@ -2,7 +2,7 @@ // // Written by Curtis Olson, started August 2000. // -// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org +// Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License as @@ -16,7 +16,7 @@ // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software -// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. // // $Id$ @@ -25,279 +25,176 @@ # include #endif -#include // fabs() -#include // sprintf() +#include // sprintf() +#include // atoi() +#include #include -#include -#include +#include -#include STL_STRING -#include STL_IOSTREAM -#include +#include #include "runways.hxx" -SG_USING_NAMESPACE(std); -SG_USING_STD(istream); -SG_USING_STD(multimap); +#include +#include -inline istream& -operator >> ( istream& in, FGRunway& a ) -{ - string type; - int tmp; +using std::string; - in >> a.type; - if ( a.type == "R" ) { - in >> a.id >> a.rwy_no >> a.lat >> a.lon >> a.heading - >> a.length >> a.width >> a.surface_flags >> a.end1_flags - >> tmp >> tmp >> a.end2_flags >> tmp >> tmp; - } else if ( a.type == "T" ) { - // in >> a.id >> a.rwy_no >> a.lat >> a.lon >> a.heading - // >> a.length >> a.width >> a.surface_flags; - in >> skipeol; - } else { - in >> skipeol; +static std::string cleanRunwayNo(const std::string& aRwyNo) +{ + if (aRwyNo[0] == 'x') { + return std::string(); // no ident for taxiways + } + + string result(aRwyNo); + // canonicalise runway ident + if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) { + result = "0" + aRwyNo; + } + + // trim off trailing garbage + if (result.size() > 2) { + char suffix = toupper(result[2]); + if (suffix == 'X') { + result = result.substr(0, 2); } - - return in; + } + + return result; } - -FGRunwayList::FGRunwayList( const string& file ) { - SG_LOG( SG_GENERAL, SG_DEBUG, "Reading runway list: " << file ); - - // open the specified file for reading - sg_gzifstream in( file ); - if ( !in.is_open() ) { - SG_LOG( SG_GENERAL, SG_ALERT, "Cannot open file: " << file ); - exit(-1); - } - - // skip header line - in >> skipeol; - - FGRunway rwy; - while ( in ) { - in >> rwy; - if(rwy.type == "R") { - runways.insert(pair(rwy.id, rwy)); - } - } +FGRunway::FGRunway(FGAirport* aAirport, const string& aIdent, + const SGGeod& aGeod, + const double heading, const double length, + const double width, + const double displ_thresh, + const double stopway, + const int surface_code, + bool reciprocal) : + FGRunwayBase(RUNWAY, cleanRunwayNo(aIdent), aGeod, heading, length, width, surface_code, true), + _airport(aAirport), + _isReciprocal(reciprocal), + _reciprocal(NULL), + _displ_thresh(displ_thresh), + _stopway(stopway), + _ils(NULL) +{ } +string FGRunway::reverseIdent(const string& aRunwayIdent) +{ + // Helipads don't have a seperate number per end + if (aRunwayIdent.size() && (aRunwayIdent[0] == 'H' || aRunwayIdent[0] == 'h' || aRunwayIdent[0] == 'x')) { + return aRunwayIdent; + } -// Return reverse rwy number -// eg 01 -> 19 -// 03L -> 21R -static string GetReverseRunwayNo(string rwyno) { - // cout << "Original rwyno = " << rwyNo << '\n'; + std::string ident(aRunwayIdent); - // standardize input number - string tmp = rwyno.substr(1, 1); - if (( tmp == "L" || tmp == "R" || tmp == "C" ) || (rwyno.size() == 1)) { - tmp = rwyno; - rwyno = "0" + tmp; - SG_LOG( SG_GENERAL, SG_INFO, "Standardising rwy number from " << tmp - << " to " << rwyno ); + char buf[4]; + int rn = atoi(ident.substr(0,2).c_str()); + rn += 18; + while(rn > 36) { + rn -= 36; + } + + sprintf(buf, "%02i", rn); + if(ident.size() == 3) { + char suffix = toupper(ident[2]); + if(suffix == 'L') { + buf[2] = 'R'; + } else if (suffix == 'R') { + buf[2] = 'L'; + } else { + // something else, just copy + buf[2] = suffix; } - char buf[4]; - int rn = atoi(rwyno.substr(0,2).c_str()); - rn += 18; - while(rn > 36) { - rn -= 36; - } - sprintf(buf, "%02i", rn); - if(rwyno.size() == 3) { - if(rwyno.substr(2,1) == "L") { - buf[2] = 'R'; - buf[3] = '\0'; - } else if (rwyno.substr(2,1) == "R") { - buf[2] = 'L'; - buf[3] = '\0'; - } else if (rwyno.substr(2,1) == "C") { - buf[2] = 'C'; - buf[3] = '\0'; - } else { - SG_LOG(SG_GENERAL, SG_ALERT, "Unknown runway code " - << rwyno << " passed to GetReverseRunwayNo(...)"); - } - } - return(buf); + buf[3] = 0; + } + + return buf; } - -// search for the specified apt id (wierd!) -bool FGRunwayList::search( const string& aptid, FGRunway* r ) { - runway_map_iterator pos; - - pos = runways.lower_bound(aptid); - if ( pos != runways.end() ) { - current = pos; - *r = pos->second; - return true; - } else { - return false; - } +double FGRunway::score(double aLengthWt, double aWidthWt, double aSurfaceWt) const +{ + int surface = 1; + if (_surface_code == 12 || _surface_code == 5) // dry lakebed & gravel + surface = 2; + else if (_surface_code == 1 || _surface_code == 2) // asphalt & concrete + surface = 3; + + return _length * aLengthWt + _width * aWidthWt + surface * aSurfaceWt + 1e-20; } - -// search for the specified apt id and runway no -bool FGRunwayList::search( const string& aptid, const string& rwyno, - FGRunway *r ) +SGGeod FGRunway::begin() const { - string revrwyno = ""; - string runwayno = rwyno; - if ( runwayno.length() ) { - // standardize input number - string tmp = runwayno.substr(1, 1); - if (( tmp == "L" || tmp == "R" || tmp == "C" ) - || (runwayno.size() == 1)) - { - tmp = runwayno; - runwayno = "0" + tmp; - SG_LOG( SG_GENERAL, SG_INFO, "Standardising rwy number from " - << tmp << " to " << runwayno ); - } - revrwyno = GetReverseRunwayNo(runwayno); - } - - runway_map_iterator pos; - for ( pos = runways.lower_bound( aptid ); - pos != runways.upper_bound( aptid ); ++pos) - { - if ( pos->second.rwy_no == runwayno ) { - current = pos; - *r = pos->second; - return true; - } else if ( pos->second.rwy_no == revrwyno ) { - // Search again with the other-end runway number. - // Remember we have to munge the heading and rwy_no - // results if this one matches - current = pos; - *r = pos->second; - // NOTE - matching revrwyno implies that runwayno was - // actually correct. - r->rwy_no = runwayno; - r->heading += 180.0; - string tmp = r->end1_flags; - r->end1_flags = r->end2_flags; - r->end2_flags = tmp; - return true; - } - } - - return false; + return pointOnCenterline(0.0); } - -// (wierd!) -FGRunway FGRunwayList::search( const string& aptid ) { - FGRunway a; - search( aptid, &a ); - return a; +SGGeod FGRunway::end() const +{ + return pointOnCenterline(lengthM()); } - -// Return the runway closest to a given heading -bool FGRunwayList::search( const string& aptid, const int tgt_hdg, - FGRunway *runway ) +SGGeod FGRunway::threshold() const { - string rwyNo = search(aptid, tgt_hdg); - return(rwyNo == "NN" ? false : search(aptid, rwyNo, runway)); + return pointOnCenterline(_displ_thresh * SG_FEET_TO_METER); } - -// Return the runway number of the runway closest to a given heading -string FGRunwayList::search( const string& aptid, const int tgt_hdg ) { - FGRunway r; - FGRunway tmp_r; - string rn; - double found_dir = 0.0; - - if ( !search( aptid, &tmp_r ) ) { - SG_LOG( SG_GENERAL, SG_ALERT, - "Failed to find " << aptid << " in database." ); - return "NN"; - } - - double diff; - double min_diff = 360.0; - - while ( tmp_r.id == aptid ) { - r = tmp_r; - - // forward direction - diff = tgt_hdg - r.heading; - while ( diff < -180.0 ) { diff += 360.0; } - while ( diff > 180.0 ) { diff -= 360.0; } - diff = fabs(diff); - // SG_LOG( SG_GENERAL, SG_INFO, - // "Runway " << r.rwy_no << " heading = " << r.heading << - // " diff = " << diff ); - if ( diff < min_diff ) { - min_diff = diff; - rn = r.rwy_no; - found_dir = 0; - } - - // reverse direction - diff = tgt_hdg - r.heading - 180.0; - while ( diff < -180.0 ) { diff += 360.0; } - while ( diff > 180.0 ) { diff -= 360.0; } - diff = fabs(diff); - // SG_LOG( SG_GENERAL, SG_INFO, - // "Runway -" << r.rwy_no << " heading = " << - // r.heading + 180.0 << - // " diff = " << diff ); - if ( diff < min_diff ) { - min_diff = diff; - rn = r.rwy_no; - found_dir = 180.0; - } - - next( &tmp_r ); - } - - // SG_LOG( SG_GENERAL, SG_INFO, "closest runway = " << r.rwy_no - // << " + " << found_dir ); - rn = r.rwy_no; - // cout << "In search, rn = " << rn << endl; - if ( found_dir == 180 ) { - rn = GetReverseRunwayNo(rn); - //cout << "New rn = " << rn << '\n'; - } - - return rn; +void FGRunway::processThreshold(SGPropertyNode* aThreshold) +{ + assert(ident() == aThreshold->getStringValue("rwy")); + + double lon = aThreshold->getDoubleValue("lon"), + lat = aThreshold->getDoubleValue("lat"); + SGGeod newThreshold(SGGeod::fromDegM(lon, lat, mPosition.getElevationM())); + + _heading = aThreshold->getDoubleValue("hdg-deg"); + _displ_thresh = aThreshold->getDoubleValue("displ-m") * SG_METER_TO_FEET; + _stopway = aThreshold->getDoubleValue("stopw-m") * SG_METER_TO_FEET; + + // compute the new runway center, based on the threshold lat/lon and length, + double offsetFt = (0.5 * _length); + SGGeod newCenter; + double dummy; + SGGeodesy::direct(newThreshold, _heading, offsetFt * SG_FEET_TO_METER, newCenter, dummy); + mPosition = newCenter; +} + +void FGRunway::setReciprocalRunway(FGRunway* other) +{ + assert(_reciprocal==NULL); + assert((other->_reciprocal == NULL) || (other->_reciprocal == this)); + + _reciprocal = other; } - -bool FGRunwayList::next( FGRunway* runway ) { - ++current; - if ( current != runways.end() ) { - *runway = current->second; - return true; - } else { - return false; +std::vector FGRunway::getSIDs() +{ + std::vector result; + for (unsigned int i=0; i<_airport->numSIDs(); ++i) { + flightgear::SID* s = _airport->getSIDByIndex(i); + if (s->isForRunway(this)) { + result.push_back(s); } + } // of SIDs at the airport iteration + + return result; } - -FGRunway FGRunwayList::next() { - FGRunway result; - - ++current; - if ( current != runways.end() ) { - result = current->second; +std::vector FGRunway::getSTARs() +{ + std::vector result; + for (unsigned int i=0; i<_airport->numSTARs(); ++i) { + flightgear::STAR* s = _airport->getSTARByIndex(i); + if (s->isForRunway(this)) { + result.push_back(s); } - - return result; + } // of STARs at the airport iteration + + return result; } -// Destructor -FGRunwayList::~FGRunwayList( void ) { -}