Added a "mini fdm" output. This could (for example) be useful for an
external gui if it wanted to monitor some key sim position/orientation varialbles without saturating the net with the full slate of fdm data @60hz.
This commit is contained in:
curt
parent
f9ae85b0c0
commit
e4b3eebdbb
6 changed files with 393 additions and 3 deletions
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@ -17,7 +17,8 @@ libNetwork_a_SOURCES = \
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native.cxx native.hxx \
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native.cxx native.hxx \
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native_ctrls.cxx native_ctrls.hxx \
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native_ctrls.cxx native_ctrls.hxx \
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native_fdm.cxx native_fdm.hxx \
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native_fdm.cxx native_fdm.hxx \
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net_ctrls.hxx net_fdm.hxx \
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native_fdm_mini.cxx native_fdm_mini.hxx \
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net_ctrls.hxx net_fdm.hxx net_fdm_mini.hxx \
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nmea.cxx nmea.hxx \
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nmea.cxx nmea.hxx \
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opengc.cxx opengc.hxx opengc_data.hxx \
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opengc.cxx opengc.hxx opengc_data.hxx \
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props.cxx props.hxx \
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props.cxx props.hxx \
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@ -68,6 +68,7 @@ void FGProps2NetCtrls( FGNetCtrls *net );
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// Update the property tree from the FGNetCtrls structure.
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// Update the property tree from the FGNetCtrls structure.
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void FGNetCtrls2Props( FGNetCtrls *net );
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void FGNetCtrls2Props( FGNetCtrls *net );
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#endif // _FG_NATIVE_CTRLS_HXX
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#endif // _FG_NATIVE_CTRLS_HXX
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@ -367,11 +367,12 @@ void FGNetFDM2Props( FGNetFDM *net ) {
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last_warp = net->warp;
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last_warp = net->warp;
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*/
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*/
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} else {
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} else {
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SG_LOG( SG_IO, SG_ALERT, "Error: version mismatch in net2global()" );
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SG_LOG( SG_IO, SG_ALERT,
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"Error: version mismatch in FGNetFDM2Props()" );
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SG_LOG( SG_IO, SG_ALERT,
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SG_LOG( SG_IO, SG_ALERT,
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"\tread " << net->version << " need " << FG_NET_FDM_VERSION );
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"\tread " << net->version << " need " << FG_NET_FDM_VERSION );
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SG_LOG( SG_IO, SG_ALERT,
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SG_LOG( SG_IO, SG_ALERT,
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"\tsomeone needs to upgrade net_fdm.hxx and recompile." );
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"\tNeeds to upgrade net_fdm.hxx and recompile." );
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}
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}
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}
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}
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244
src/Network/native_fdm_mini.cxx
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244
src/Network/native_fdm_mini.cxx
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@ -0,0 +1,244 @@
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// native_fdm.cxx -- FGFS "Native" flight dynamics protocal class
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//
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// Written by Curtis Olson, started September 2001.
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//
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// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.org
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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., 675 Mass Ave, Cambridge, MA 02139, 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 <simgear/debug/logstream.hxx>
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#include <simgear/io/lowlevel.hxx> // endian tests
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#include <simgear/io/iochannel.hxx>
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#include <simgear/timing/sg_time.hxx>
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#include <FDM/flight.hxx>
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#include <Time/tmp.hxx>
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#include <Main/fg_props.hxx>
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#include <Main/globals.hxx>
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#include "native_fdm_mini.hxx"
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// FreeBSD works better with this included last ... (?)
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#if defined(WIN32) && !defined(__CYGWIN__)
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# include <windows.h>
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#else
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# include <netinet/in.h> // htonl() ntohl()
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#endif
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// The function htond is defined this way due to the way some
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// processors and OSes treat floating point values. Some will raise
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// an exception whenever a "bad" floating point value is loaded into a
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// floating point register. Solaris is notorious for this, but then
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// so is LynxOS on the PowerPC. By translating the data in place,
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// there is no need to load a FP register with the "corruped" floating
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// point value. By doing the BIG_ENDIAN test, I can optimize the
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// routine for big-endian processors so it can be as efficient as
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// possible
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static void htond (double &x)
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{
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if ( sgIsLittleEndian() ) {
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int *Double_Overlay;
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int Holding_Buffer;
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Double_Overlay = (int *) &x;
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Holding_Buffer = Double_Overlay [0];
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Double_Overlay [0] = htonl (Double_Overlay [1]);
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Double_Overlay [1] = htonl (Holding_Buffer);
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} else {
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return;
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}
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}
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FGNativeFDMmini::FGNativeFDMmini() {
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}
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FGNativeFDMmini::~FGNativeFDMmini() {
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}
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// open hailing frequencies
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bool FGNativeFDMmini::open() {
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if ( is_enabled() ) {
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SG_LOG( SG_IO, SG_ALERT, "This shouldn't happen, but the channel "
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<< "is already in use, ignoring" );
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return false;
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}
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SGIOChannel *io = get_io_channel();
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if ( ! io->open( get_direction() ) ) {
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SG_LOG( SG_IO, SG_ALERT, "Error opening channel communication layer." );
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return false;
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}
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set_enabled( true );
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cur_fdm_state->_set_Sea_level_radius( SG_EQUATORIAL_RADIUS_FT );
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return true;
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}
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void FGProps2NetFDMmini( FGNetFDMmini *net ) {
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int i;
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// Version sanity checking
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net->version = FG_NET_FDM_MINI_VERSION;
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// Aero parameters
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net->longitude = cur_fdm_state->get_Longitude();
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net->latitude = cur_fdm_state->get_Latitude();
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net->altitude = cur_fdm_state->get_Altitude() * SG_FEET_TO_METER;
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net->phi = cur_fdm_state->get_Phi();
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net->theta = cur_fdm_state->get_Theta();
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net->psi = cur_fdm_state->get_Psi();
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// Consumables
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net->num_tanks = FGNetFDMmini::FG_MAX_TANKS;
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for ( i = 0; i < net->num_tanks; ++i ) {
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SGPropertyNode *node = fgGetNode("/consumables/fuel/tank", i, true);
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net->fuel_quantity[i] = node->getDoubleValue("level-gal_us");
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}
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// the following really aren't used in this context
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net->cur_time = globals->get_time_params()->get_cur_time();
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net->warp = globals->get_warp();
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// Convert the net buffer to network format
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net->version = htonl(net->version);
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htond(net->longitude);
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htond(net->latitude);
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htond(net->altitude);
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htond(net->phi);
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htond(net->theta);
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htond(net->psi);
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for ( i = 0; i < net->num_tanks; ++i ) {
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htond(net->fuel_quantity[i]);
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}
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net->num_tanks = htonl(net->num_tanks);
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net->cur_time = htonl( net->cur_time );
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net->warp = htonl( net->warp );
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}
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void FGNetFDMmini2Props( FGNetFDMmini *net ) {
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int i;
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// Convert to the net buffer from network format
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net->version = ntohl(net->version);
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htond(net->longitude);
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htond(net->latitude);
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htond(net->altitude);
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htond(net->phi);
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htond(net->theta);
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htond(net->psi);
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net->num_tanks = htonl(net->num_tanks);
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for ( i = 0; i < net->num_tanks; ++i ) {
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htond(net->fuel_quantity[i]);
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}
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net->cur_time = ntohl(net->cur_time);
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net->warp = ntohl(net->warp);
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if ( net->version == FG_NET_FDM_MINI_VERSION ) {
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// cout << "pos = " << net->longitude << " " << net->latitude << endl;
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// cout << "sea level rad = " << cur_fdm_state->get_Sea_level_radius()
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// << endl;
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cur_fdm_state->_updateGeodeticPosition( net->latitude,
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net->longitude,
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net->altitude
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* SG_METER_TO_FEET );
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cur_fdm_state->_set_Euler_Angles( net->phi,
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net->theta,
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net->psi );
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for (i = 0; i < net->num_tanks; ++i ) {
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SGPropertyNode * node
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= fgGetNode("/consumables/fuel/tank", i, true);
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node->setDoubleValue("level-gal_us", net->fuel_quantity[i] );
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}
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if ( net->cur_time ) {
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fgSetLong("/sim/time/cur-time-override", net->cur_time);
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}
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globals->set_warp( net->warp );
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} else {
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SG_LOG( SG_IO, SG_ALERT,
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"Error: version mismatch in FGNetFDMmini2Props()" );
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SG_LOG( SG_IO, SG_ALERT,
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"\tread " << net->version << " need " << FG_NET_FDM_MINI_VERSION );
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SG_LOG( SG_IO, SG_ALERT,
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"\tNeed to upgrade net_fdm.hxx and recompile." );
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}
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}
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// process work for this port
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bool FGNativeFDMmini::process() {
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SGIOChannel *io = get_io_channel();
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int length = sizeof(buf);
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if ( get_direction() == SG_IO_OUT ) {
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// cout << "size of cur_fdm_state = " << length << endl;
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FGProps2NetFDMmini( &buf );
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if ( ! io->write( (char *)(& buf), length ) ) {
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SG_LOG( SG_IO, SG_ALERT, "Error writing data." );
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return false;
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}
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} else if ( get_direction() == SG_IO_IN ) {
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if ( io->get_type() == sgFileType ) {
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if ( io->read( (char *)(& buf), length ) == length ) {
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SG_LOG( SG_IO, SG_DEBUG, "Success reading data." );
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FGNetFDMmini2Props( &buf );
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}
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} else {
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while ( io->read( (char *)(& buf), length ) == length ) {
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SG_LOG( SG_IO, SG_DEBUG, "Success reading data." );
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FGNetFDMmini2Props( &buf );
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}
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}
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}
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return true;
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}
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// close the channel
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bool FGNativeFDMmini::close() {
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SGIOChannel *io = get_io_channel();
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set_enabled( false );
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if ( ! io->close() ) {
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return false;
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}
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return true;
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}
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68
src/Network/native_fdm_mini.hxx
Normal file
68
src/Network/native_fdm_mini.hxx
Normal file
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@ -0,0 +1,68 @@
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// native_fdm_mini.hxx -- FGFS "Mini-Native" flight dynamics protocal class
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//
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// Written by Curtis Olson, started January 2002.
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//
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// Copyright (C) 2002 Curtis L. Olson - curt@flightgear.org
|
||||||
|
//
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||||||
|
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||||
|
//
|
||||||
|
// $Id$
|
||||||
|
|
||||||
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|
||||||
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#ifndef _FG_NATIVE_FDM_MINI_HXX
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#define _FG_NATIVE_FDM_MINI_HXX
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#include <simgear/compiler.h>
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#include <FDM/flight.hxx>
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|
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#include "protocol.hxx"
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#include "net_fdm_mini.hxx"
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|
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|
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class FGNativeFDMmini : public FGProtocol, public FGInterface {
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FGNetFDMmini buf;
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int length;
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public:
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FGNativeFDMmini();
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~FGNativeFDMmini();
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||||||
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// open hailing frequencies
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||||||
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bool open();
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||||||
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||||||
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// process work for this port
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||||||
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bool process();
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// close the channel
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bool close();
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};
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||||||
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// Helper functions which may be useful outside this class
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||||||
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|
||||||
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// Populate the FGNetFDMmini structure from the property tree.
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void FGProps2NetFDMmini( FGNetFDMmini *net );
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|
||||||
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// Update the property tree from the FGNetFDMmini structure.
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||||||
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void FGNetFDMmini2Props( FGNetFDMmini *net );
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||||||
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#endif // _FG_NATIVE_FDM_MINI_HXX
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75
src/Network/net_fdm_mini.hxx
Normal file
75
src/Network/net_fdm_mini.hxx
Normal file
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|
@ -0,0 +1,75 @@
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|
// net_fdm_mini.hxx -- defines a simple subset I/O interface to the flight
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||||||
|
// dynamics model variables
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||||||
|
//
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||||||
|
// Written by Curtis Olson, started January 2002.
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||||||
|
//
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||||||
|
// Copyright (C) 2002 Curtis L. Olson - curt@flightgear.com
|
||||||
|
//
|
||||||
|
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||||
|
//
|
||||||
|
// $Id$
|
||||||
|
|
||||||
|
|
||||||
|
#ifndef _NET_FDM_MINI_HXX
|
||||||
|
#define _NET_FDM_MINI_HXX
|
||||||
|
|
||||||
|
|
||||||
|
#ifndef __cplusplus
|
||||||
|
# error This library requires C++
|
||||||
|
#endif
|
||||||
|
|
||||||
|
|
||||||
|
const int FG_NET_FDM_MINI_VERSION = 1;
|
||||||
|
|
||||||
|
|
||||||
|
// Define a structure containing the top level flight dynamics model
|
||||||
|
// parameters
|
||||||
|
|
||||||
|
class FGNetFDMmini {
|
||||||
|
|
||||||
|
public:
|
||||||
|
|
||||||
|
enum {
|
||||||
|
FG_MAX_ENGINES = 4,
|
||||||
|
FG_MAX_WHEELS = 3,
|
||||||
|
FG_MAX_TANKS = 4
|
||||||
|
};
|
||||||
|
|
||||||
|
int version; // increment when data values change
|
||||||
|
int pad; // keep doubles 64-bit aligned for some
|
||||||
|
// hardware platforms, such as the Sun
|
||||||
|
// SPARC, which don't like misaligned
|
||||||
|
// data
|
||||||
|
|
||||||
|
// Positions
|
||||||
|
double longitude; // geodetic (radians)
|
||||||
|
double latitude; // geodetic (radians)
|
||||||
|
double altitude; // above sea level (meters)
|
||||||
|
double agl; // above ground level (meters)
|
||||||
|
double phi; // roll (radians)
|
||||||
|
double theta; // pitch (radians)
|
||||||
|
double psi; // yaw or true heading (radians)
|
||||||
|
|
||||||
|
// Consumables
|
||||||
|
int num_tanks; // Max number of fuel tanks
|
||||||
|
double fuel_quantity[FG_MAX_TANKS];
|
||||||
|
|
||||||
|
// Environment
|
||||||
|
time_t cur_time; // current unix time
|
||||||
|
long int warp; // offset in seconds to unix time
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
#endif // _NET_FDM_MINI_HXX
|
||||||
Loading…
Reference in a new issue