Hi
What do you mean? I was able to compile it but when it starts linking, its
giving the error that I have mentioned in the previous mail.
Do you mean you were able to fix the problem of XML loader function that shows
up while linking?
I am attaching the simple.cxx program to this email. please let me know if you
have a different one.
thanks.
kumar.
Vivian Meazza <[EMAIL PROTECTED]> wrote: Message That's an easy one -
make sure the files are added to your project - there are some missing from
the existing project in cvs. When you do so the project will compile
correctly. I've just confirmed that it will here.
Vivian
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Vivian
Meazza
Sent: 25 July 2007 18:19
To: 'FlightGear developers discussions'
Subject: Re: [Flightgear-devel] Compile FlightGear linking
errorsXMLLOaderfunction error
Hmm - same problem here - I look forward to someone coming up with an
answer
Vivian
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
visa faq
Sent: 25 July 2007 17:24
To: flightgear-devel@lists.sourceforge.net
Subject: [Flightgear-devel] Compile FlightGear linking errors
XMLLOaderfunction error
Note: forwarded message attached.
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Check out fitting gifts for grads at Yahoo! Search.//
// simple.cxx -- a really simplistic class to manage airport ID,
// lat, lon of the center of one of it's runways, and
// elevation in feet.
//
// Written by Curtis Olson, started April 1998.
// Updated by Durk Talsma, started December, 2004.
//
// Copyright (C) 1998 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
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA.
//
// $Id: simple.cxx,v 1.37 2007-07-04 17:39:03 durk Exp $
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <math.h>
#include <algorithm>
#include <simgear/compiler.h>
#include <plib/sg.h>
#include <plib/ul.h>
#include <Environment/environment_mgr.hxx>
#include <Environment/environment.hxx>
#include <simgear/misc/sg_path.hxx>
#include <simgear/props/props.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
//#include <simgear/route/waypoint.hxx>
#include <simgear/debug/logstream.hxx>
#include <Main/globals.hxx>
#include <Main/fg_props.hxx>
#include <Airports/runways.hxx>
#include STL_STRING
#include "simple.hxx"
#include "xmlloader.hxx"
SG_USING_STD(sort);
SG_USING_STD(random_shuffle);
/***************************************************************************
* FGAirport
***************************************************************************/
FGAirport::FGAirport() : _longitude(0), _latitude(0), _elevation(0)
{
dynamics = 0;
}
FGAirport::FGAirport(const string &id, double lon, double lat, double elev,
const string &name, bool has_metar)
{
_id = id;
_longitude = lon;
_latitude = lat;
_elevation = elev;
_name = name;
_has_metar = has_metar;
dynamics = 0;
}
FGAirport::~FGAirport()
{
delete dynamics;
}
FGAirportDynamics * FGAirport::getDynamics()
{
if (dynamics != 0) {
return dynamics;
} else {
//cerr << "Trying to load dynamics for " << _id << endl;
dynamics = new FGAirportDynamics(this);
XMLLoader::load(dynamics);
FGRunwayPreference rwyPrefs(this);
XMLLoader::load(&rwyPrefs);
dynamics->setRwyUse(rwyPrefs);
}
return dynamics;
}
/******************************************************************************
* FGAirportList
*****************************************************************************/
// Populates a list of subdirectories of $FG_ROOT/Airports/AI so that
// the add() method doesn't have to try opening 2 XML files in each of
// thousands of non-existent directories. FIXME: should probably add
// code to free this list after parsing of apt.dat is finished;
// non-issue at the moment, however, as there are no AI subdirectories
// in the base package.
//
// Note: 2005/12/23: This is probably not necessary anymore, because I'm
// Switching to runtime airport dynamics loading (DT).
FGAirportList::FGAirportList()
{
// ulDir* d;
// ulDirEnt* dent;
// SGPath aid( globals->get_fg_root() );
// aid.append( "/Airports/AI" );
// if((d = ulOpenDir(aid.c_str())) == NULL)
// return;
// while((dent = ulReadDir(d)) != NULL) {
// SG_LOG( SG_GENERAL, SG_DEBUG, "Dent: " << dent->d_name );
// ai_dirs.insert(dent->d_name);
// }
// ulCloseDir(d);
}
FGAirportList::~FGAirportList( void )
{
for (unsigned int i = 0; i < airports_array.size(); ++i) {
delete airports_array[i];
}
}
// add an entry to the list
void FGAirportList::add( const string &id, const double longitude,
const double latitude, const double elevation,
const string &name, const bool has_metar )
{
FGAirport* a = new FGAirport(id, longitude, latitude, elevation, name,
has_metar);
airports_by_id[a->getId()] = a;
// try and read in an auxilary file
airports_array.push_back( a );
SG_LOG( SG_GENERAL, SG_BULK, "Adding " << id << " pos = " << longitude
<< ", " << latitude << " elev = " << elevation );
}
// search for the specified id
FGAirport* FGAirportList::search( const string& id)
{
airport_map_iterator itr = airports_by_id.find(id);
return (itr == airports_by_id.end() ? NULL : itr->second);
}
// search for first subsequent alphabetically to supplied id
const FGAirport* FGAirportList::findFirstById( const string& id, bool exact )
{
airport_map_iterator itr;
if (exact) {
itr = airports_by_id.find(id);
} else {
itr = airports_by_id.lower_bound(id);
}
if (itr == airports_by_id.end()) {
return (NULL);
} else {
return (itr->second);
}
}
// search for the airport nearest the specified position
FGAirport* FGAirportList::search( double lon_deg, double lat_deg,
bool with_metar )
{
int closest = -1;
double min_dist = 360.0;
unsigned int i;
for ( i = 0; i < airports_array.size(); ++i ) {
// crude manhatten distance based on lat/lon difference
double d = fabs(lon_deg - airports_array[i]->getLongitude())
+ fabs(lat_deg - airports_array[i]->getLatitude());
if ( d < min_dist ) {
if ( !with_metar || (with_metar&&airports_array[i]->getMetar()) ) {
closest = i;
min_dist = d;
}
}
}
return ( closest > -1 ? airports_array[closest] : NULL );
}
int
FGAirportList::size () const
{
return airports_array.size();
}
const FGAirport *FGAirportList::getAirport( unsigned int index ) const
{
if (index < airports_array.size()) {
return(airports_array[index]);
} else {
return(NULL);
}
}
/**
* Mark the specified airport record as not having metar
*/
void FGAirportList::no_metar( const string &id )
{
if(airports_by_id.find(id) != airports_by_id.end()) {
airports_by_id[id]->setMetar(false);
}
}
/**
* Mark the specified airport record as (yes) having metar
*/
void FGAirportList::has_metar( const string &id )
{
if(airports_by_id.find(id) != airports_by_id.end()) {
airports_by_id[id]->setMetar(true);
}
}
// find basic airport location info from airport database
const FGAirport *fgFindAirportID( const string& id)
{
const FGAirport* result = NULL;
if ( id.length() ) {
SG_LOG( SG_GENERAL, SG_BULK, "Searching for airport code = " << id );
result = globals->get_airports()->search( id );
if ( result == NULL ) {
SG_LOG( SG_GENERAL, SG_ALERT,
"Failed to find " << id << " in apt.dat.gz" );
return NULL;
}
} else {
return NULL;
}
SG_LOG( SG_GENERAL, SG_BULK,
"Position for " << id << " is ("
<< result->getLongitude() << ", "
<< result->getLatitude() << ")" );
return result;
}
// get airport elevation
double fgGetAirportElev( const string& id )
{
SG_LOG( SG_GENERAL, SG_BULK,
"Finding elevation for airport: " << id );
const FGAirport *a=fgFindAirportID( id);
if (a) {
return a->getElevation();
} else {
return -9999.0;
}
}
// get airport position
Point3D fgGetAirportPos( const string& id )
{
SG_LOG( SG_ATC, SG_BULK,
"Finding position for airport: " << id );
const FGAirport *a = fgFindAirportID( id);
if (a) {
return Point3D(a->getLongitude(), a->getLatitude(), a->getElevation());
} else {
return Point3D(0.0, 0.0, -9999.0);
}
}
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