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Initial hacking on nav-display instrument, derived from the wxradar code

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This commit is contained in:
James Turner 2011-06-04 18:41:25 +01:00
parent 66a3a7f164
commit 28c8e6fe1c
5 changed files with 806 additions and 2 deletions
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1
src/Instrumentation/CMakeLists.txt
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@ -36,6 +36,7 @@ set(SOURCES
turn_indicator.cxx
vertical_speed_indicator.cxx
wxradar.cxx
NavDisplay.cxx
HUD/HUD.cxx
HUD/HUD_dial.cxx
HUD/HUD_gauge.cxx

3
src/Instrumentation/Makefile.am
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@ -34,6 +34,7 @@ libInstrumentation_a_SOURCES = \
groundradar.cxx groundradar.hxx \
agradar.cxx agradar.hxx rad_alt.cxx rad_alt.hxx \
rnav_waypt_controller.cxx rnav_waypt_controller.hxx \
tcas.cxx tcas.hxx
tcas.cxx tcas.hxx \
NavDisplay.cxx NavDisplay.hxx
INCLUDES = -I$(top_srcdir) -I$(top_srcdir)/src -I$(top_builddir)/src

648
src/Instrumentation/NavDisplay.cxx Normal file
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@ -0,0 +1,648 @@
// navigation display texture
//
// Written by James Turner, forked from wxradar code
//
//
// 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.
//
//
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "NavDisplay.hxx"
#include <osg/Array>
#include <osg/Geometry>
#include <osg/Matrixf>
#include <osg/PrimitiveSet>
#include <osg/StateSet>
#include <osg/LineWidth>
#include <osg/Version>
#include <osgDB/ReaderWriter>
#include <osgDB/WriteFile>
#include <simgear/constants.h>
#include <simgear/misc/sg_path.hxx>
#include <simgear/scene/model/model.hxx>
#include <simgear/structure/exception.hxx>
#include <simgear/misc/sg_path.hxx>
#include <simgear/math/sg_geodesy.hxx>
#include <sstream>
#include <iomanip>
#include <iostream> // for cout, endl
using std::stringstream;
using std::endl;
using std::setprecision;
using std::fixed;
using std::setw;
using std::setfill;
using std::cout;
using std::endl;
#include <Main/fg_props.hxx>
#include <Main/globals.hxx>
#include <Cockpit/panel.hxx>
#include <Navaids/routePath.hxx>
#include <Autopilot/route_mgr.hxx>
#include <Navaids/navrecord.hxx>
#include <Navaids/navlist.hxx>
#include <Navaids/fix.hxx>
#include <Airports/simple.hxx>
#include <Airports/runways.hxx>
#include "instrument_mgr.hxx"
#include "od_gauge.hxx"
static const float UNIT = 1.0f / 8.0f; // 8 symbols in a row/column in the texture
static const char *DEFAULT_FONT = "typewriter.txf";
NavDisplay::NavDisplay(SGPropertyNode *node) :
_name(node->getStringValue("name", "nd")),
_num(node->getIntValue("number", 0)),
_time(0.0),
_interval(node->getDoubleValue("update-interval-sec", 1.0)),
_elapsed_time(0),
_persistance(0),
_sim_init_done(false),
_odg(0),
_scale(0),
_angle_offset(0),
_view_heading(0),
_x_offset(0),
_y_offset(0),
_radar_ref_rng(0),
_lat(0),
_lon(0),
_resultTexture(0),
_font_size(0),
_font_spacing(0),
_rangeNm(0)
{
_Instrument = fgGetNode(string("/instrumentation/" + _name).c_str(), _num, true);
_font_node = _Instrument->getNode("font", true);
#define INITFONT(p, val, type) if (!_font_node->hasValue(p)) _font_node->set##type##Value(p, val)
INITFONT("name", DEFAULT_FONT, String);
INITFONT("size", 8, Float);
INITFONT("line-spacing", 0.25, Float);
INITFONT("color/red", 0, Float);
INITFONT("color/green", 0.8, Float);
INITFONT("color/blue", 0, Float);
INITFONT("color/alpha", 1, Float);
#undef INITFONT
}
NavDisplay::~NavDisplay()
{
}
void
NavDisplay::init ()
{
_serviceable_node = _Instrument->getNode("serviceable", true);
// texture name to use in 2D and 3D instruments
_texture_path = _Instrument->getStringValue("radar-texture-path",
"Aircraft/Instruments/Textures/od_wxradar.rgb");
_resultTexture = FGTextureManager::createTexture(_texture_path.c_str(), false);
string path = _Instrument->getStringValue("symbol-texture-path",
"Aircraft/Instruments/Textures/nd-symbols.png");
SGPath tpath = globals->resolve_aircraft_path(path);
// no mipmap or else alpha will mix with pixels on the border of shapes, ruining the effect
_symbols = SGLoadTexture2D(tpath, NULL, false, false);
FGInstrumentMgr *imgr = (FGInstrumentMgr *)globals->get_subsystem("instrumentation");
_odg = (FGODGauge *)imgr->get_subsystem("od_gauge");
_odg->setSize(_Instrument->getIntValue("texture-size", 512));
_user_lat_node = fgGetNode("/position/latitude-deg", true);
_user_lon_node = fgGetNode("/position/longitude-deg", true);
_user_alt_node = fgGetNode("/position/altitude-ft", true);
SGPropertyNode *n = _Instrument->getNode("display-controls", true);
_radar_weather_node = n->getNode("WX", true);
_radar_position_node = n->getNode("pos", true);
_radar_data_node = n->getNode("data", true);
_radar_symbol_node = n->getNode("symbol", true);
_radar_centre_node = n->getNode("centre", true);
_radar_tcas_node = n->getNode("tcas", true);
_radar_absalt_node = n->getNode("abs-altitude", true);
_ai_enabled_node = fgGetNode("/sim/ai/enabled", true);
_route = static_cast<FGRouteMgr*>(globals->get_subsystem("route-manager"));
// OSG geometry setup
_radarGeode = new osg::Geode;
osg::StateSet *stateSet = _radarGeode->getOrCreateStateSet();
stateSet->setTextureAttributeAndModes(0, _symbols.get());
osg::LineWidth *lw = new osg::LineWidth();
lw->setWidth(2.0);
stateSet->setAttribute(lw);
_geom = new osg::Geometry;
_geom->setUseDisplayList(false);
// Initially allocate space for 128 quads
_vertices = new osg::Vec2Array;
_vertices->setDataVariance(osg::Object::DYNAMIC);
_vertices->reserve(128 * 4);
_geom->setVertexArray(_vertices);
_texCoords = new osg::Vec2Array;
_texCoords->setDataVariance(osg::Object::DYNAMIC);
_texCoords->reserve(128 * 4);
_geom->setTexCoordArray(0, _texCoords);
osg::Vec3Array *colors = new osg::Vec3Array;
colors->push_back(osg::Vec3(1.0f, 1.0f, 1.0f)); // color of echos
_geom->setColorBinding(osg::Geometry::BIND_PER_PRIMITIVE_SET);
_geom->setColorArray(colors);
_symbolPrimSet = new osg::DrawArrays(osg::PrimitiveSet::QUADS);
_symbolPrimSet->setDataVariance(osg::Object::DYNAMIC);
_geom->addPrimitiveSet(_symbolPrimSet);
_geom->setInitialBound(osg::BoundingBox(osg::Vec3f(-256.0f, -256.0f, 0.0f),
osg::Vec3f(256.0f, 256.0f, 0.0f)));
_radarGeode->addDrawable(_geom);
_odg->allocRT();
// Texture in the 2D panel system
FGTextureManager::addTexture(_texture_path.c_str(), _odg->getTexture());
_lineGeometry = new osg::Geometry;
_lineGeometry->setUseDisplayList(false);
_lineVertices = new osg::Vec2Array;
_lineVertices->setDataVariance(osg::Object::DYNAMIC);
_lineVertices->reserve(128 * 4);
_lineGeometry->setVertexArray(_vertices);
_lineColors = new osg::Vec3Array;
_lineColors->setDataVariance(osg::Object::DYNAMIC);
_lineGeometry->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
_lineGeometry->setColorArray(colors);
_linePrimSet = new osg::DrawArrays(osg::PrimitiveSet::LINES);
_linePrimSet->setDataVariance(osg::Object::DYNAMIC);
_lineGeometry->addPrimitiveSet(_linePrimSet);
_lineGeometry->setInitialBound(osg::BoundingBox(osg::Vec3f(-256.0f, -256.0f, 0.0f),
osg::Vec3f(256.0f, 256.0f, 0.0f)));
_radarGeode->addDrawable(_lineGeometry);
_textGeode = new osg::Geode;
osg::Camera *camera = _odg->getCamera();
camera->addChild(_radarGeode.get());
camera->addChild(_textGeode.get());
updateFont();
}
// Local coordinates for each echo
const osg::Vec3f symbolCoords[4] = {
osg::Vec3f(-.7f, -.7f, 0.0f), osg::Vec3f(.7f, -.7f, 0.0f),
osg::Vec3f(.7f, .7f, 0.0f), osg::Vec3f(-.7f, .7f, 0.0f)
};
const osg::Vec2f symbolTexCoords[4] = {
osg::Vec2f(0.0f, 0.0f), osg::Vec2f(UNIT, 0.0f),
osg::Vec2f(UNIT, UNIT), osg::Vec2f(0.0f, UNIT)
};
// helper
static void
addQuad(osg::Vec2Array *vertices, osg::Vec2Array *texCoords,
const osg::Matrixf& transform, const osg::Vec2f& texBase)
{
for (int i = 0; i < 4; i++) {
const osg::Vec3f coords = transform.preMult(symbolCoords[i]);
texCoords->push_back(texBase + symbolTexCoords[i]);
vertices->push_back(osg::Vec2f(coords.x(), coords.y()));
}
}
// Rotate by a heading value
static inline
osg::Matrixf wxRotate(float angle)
{
return osg::Matrixf::rotate(angle, 0.0f, 0.0f, -1.0f);
}
void
NavDisplay::update (double delta_time_sec)
{
if (!fgGetBool("sim/sceneryloaded", false)) {
return;
}
if (!_odg || !_serviceable_node->getBoolValue()) {
_Instrument->setStringValue("status", "");
return;
}
_time += delta_time_sec;
if (_time < _interval){
return;
}
_time -= _interval;
string mode = _Instrument->getStringValue("display-mode", "arc");
_rangeNm = _Instrument->getFloatValue("range", 40.0);
_view_heading = fgGetDouble("/orientation/heading-deg") * SG_DEGREES_TO_RADIANS;
_scale = 200.0;
bool centre = _radar_centre_node->getBoolValue();
if (centre) {
_centerTrans = osg::Matrixf::identity();
} else {
_centerTrans = osg::Matrixf::identity();
}
_drawData = _radar_data_node->getBoolValue();
_pos = SGGeod::fromDegFt(_user_lon_node->getDoubleValue(),
_user_lat_node->getDoubleValue(),
_user_alt_node->getDoubleValue());
_vertices->clear();
_lineVertices->clear();
_lineColors->clear();
_texCoords->clear();
_textGeode->removeDrawables(0, _textGeode->getNumDrawables());
update_aircraft();
update_route();
_symbolPrimSet->set(osg::PrimitiveSet::QUADS, 0, _vertices->size());
_symbolPrimSet->dirty();
_linePrimSet->set(osg::PrimitiveSet::LINES, 0, _lineVertices->size());
_linePrimSet->dirty();
}
osg::Matrixf NavDisplay::project(const SGGeod& geod) const
{
double rangeM, bearing, az2;
SGGeodesy::inverse(_pos, geod, bearing, az2, rangeM);
double radius = ((rangeM * SG_METER_TO_NM) / _rangeNm) * _scale;
bearing *= SG_DEGREES_TO_RADIANS;
return osg::Matrixf(wxRotate(_view_heading - bearing)
* osg::Matrixf::translate(0.0f, radius, 0.0f)
* wxRotate(bearing) * _centerTrans);
}
void
NavDisplay::addSymbol(const SGGeod& pos, int symbolIndex, const std::string& data)
{
int symbolRow = symbolIndex >> 4;
int symbolColumn = symbolIndex & 0x0f;
const osg::Vec2f texBase(UNIT * symbolColumn, UNIT * symbolRow);
float size = 600 * UNIT;
osg::Matrixf m(osg::Matrixf::scale(size, size, 1.0f)
* project(pos));
addQuad(_vertices, _texCoords, m, texBase);
if (!_drawData) {
return;
}
// add data drawable
osgText::Text* text = new osgText::Text;
text->setFont(_font.get());
text->setFontResolution(12, 12);
text->setCharacterSize(_font_size);
osg::Vec3 dataPos = m.preMult(osg::Vec3(16, 16, 0));
text->setLineSpacing(_font_spacing);
text->setAlignment(osgText::Text::LEFT_CENTER);
text->setText(data);
text->setPosition(osg::Vec3((int) dataPos.x(), (int)dataPos.y(), 0));
_textGeode->addDrawable(text);
}
void
NavDisplay::update_route()
{
if (_route->numWaypts() < 2) {
return;
}
RoutePath path(_route->waypts());
for (int w=0; w<_route->numWaypts(); ++w) {
bool isPast = w < _route->currentIndex();
SGGeodVec gv(path.pathForIndex(w));
if (!gv.empty()) {
osg::Vec3 color(1.0, 0.0, 1.0);
if (isPast) {
color = osg::Vec3(0.5, 0.5, 0.5);
}
osg::Vec3 pr = project(gv[0]).preMult(osg::Vec3(0.0, 0.0, 0.0));
for (unsigned int i=1; i<gv.size(); ++i) {
_lineVertices->push_back(osg::Vec2(pr.x(), pr.y()));
pr = project(gv[i]).preMult(osg::Vec3(0.0, 0.0, 0.0));
_lineVertices->push_back(osg::Vec2(pr.x(), pr.y()));
_lineColors->push_back(color);
_lineColors->push_back(color);
}
} // of line drawing
flightgear::WayptRef wpt(_route->wayptAtIndex(w));
SGGeod g = path.positionForIndex(w);
int symbolIndex = isPast ? 1 : 0;
if (!(g == SGGeod())) {
std::string data = wpt->ident();
addSymbol(g, symbolIndex, data);
}
} // of waypoints iteration
}
void
NavDisplay::update_aircraft()
{
if (!_ai_enabled_node->getBoolValue()) {
return;
}
bool draw_tcas = _radar_tcas_node->getBoolValue();
bool draw_absolute = _radar_absalt_node->getBoolValue();
bool draw_echoes = _radar_position_node->getBoolValue();
bool draw_symbols = _radar_symbol_node->getBoolValue();
bool draw_data = _radar_data_node->getBoolValue();
if (!draw_echoes && !draw_symbols && !draw_data)
return;
const SGPropertyNode *ai = fgGetNode("/ai/models", true);
for (int i = ai->nChildren() - 1; i >= 0; i--) {
const SGPropertyNode *model = ai->getChild(i);
if (!model->nChildren()) {
continue;
}
double echo_radius, sigma;
const string name = model->getName();
if (name == "aircraft" || name == "tanker")
echo_radius = 1, sigma = 1;
else if (name == "multiplayer" || name == "wingman" || name == "static")
echo_radius = 1.5, sigma = 1;
else if (name == "ship" || name == "carrier" || name == "escort" ||name == "storm")
echo_radius = 1.5, sigma = 100;
else if (name == "thermal")
echo_radius = 2, sigma = 100;
else if (name == "rocket")
echo_radius = 0.1, sigma = 0.1;
else if (name == "ballistic")
echo_radius = 0.001, sigma = 0.001;
else
continue;
SGGeod aiModelPos = SGGeod::fromDegFt(model->getDoubleValue("position/longitude-deg"),
model->getDoubleValue("position/latitude-deg"),
model->getDoubleValue("position/altitude-ft"));
double heading = model->getDoubleValue("orientation/true-heading-deg");
double rangeM, bearing, az2;
SGGeodesy::inverse(_pos, aiModelPos, bearing, az2, rangeM);
// if (!inRadarRange(sigma, rangeM))
// continue;
bearing *= SG_DEGREES_TO_RADIANS;
heading *= SG_DEGREES_TO_RADIANS;
float radius = rangeM * _scale;
// float angle = relativeBearing(bearing, _view_heading);
bool is_tcas_contact = false;
if (draw_tcas)
{
is_tcas_contact = update_tcas(model,rangeM,
_pos.getElevationFt(),
aiModelPos.getElevationFt(),
bearing,radius,draw_absolute);
}
// data mode
if (draw_symbols && (!draw_tcas)) {
const osg::Vec2f texBase(0, 3 * UNIT);
float size = 600 * UNIT;
osg::Matrixf m(osg::Matrixf::scale(size, size, 1.0f)
* wxRotate(heading - bearing)
* osg::Matrixf::translate(0.0f, radius, 0.0f)
* wxRotate(bearing) * _centerTrans);
addQuad(_vertices, _texCoords, m, texBase);
}
if (draw_data || is_tcas_contact) {
update_data(model, aiModelPos.getElevationFt(), heading, radius, bearing, false);
}
} // of ai models iteration
}
/** Update TCAS display.
* Return true when processed as TCAS contact, false otherwise. */
bool
NavDisplay::update_tcas(const SGPropertyNode *model,double range,double user_alt,double alt,
double bearing,double radius,bool absMode)
{
int threatLevel=0;
{
// update TCAS symbol
osg::Vec2f texBase;
threatLevel = model->getIntValue("tcas/threat-level",-1);
if (threatLevel == -1)
{
// no TCAS information (i.e. no transponder) => not visible to TCAS
return false;
}
int row = 7 - threatLevel;
int col = 4;
double vspeed = model->getDoubleValue("velocities/vertical-speed-fps");
if (vspeed < -3.0) // descending
col+=1;
else
if (vspeed > 3.0) // climbing
col+=2;
texBase = osg::Vec2f(col*UNIT,row * UNIT);
float size = 200 * UNIT;
osg::Matrixf m(osg::Matrixf::scale(size, size, 1.0f)
* wxRotate(-bearing)
* osg::Matrixf::translate(0.0f, radius, 0.0f)
* wxRotate(bearing) * _centerTrans);
addQuad(_vertices, _texCoords, m, texBase);
}
{
// update TCAS data
osgText::Text *altStr = new osgText::Text;
altStr->setFont(_font.get());
altStr->setFontResolution(12, 12);
altStr->setCharacterSize(_font_size);
altStr->setColor(_tcas_colors[threatLevel]);
osg::Matrixf m(wxRotate(-bearing)
* osg::Matrixf::translate(0.0f, radius, 0.0f)
* wxRotate(bearing) * _centerTrans);
osg::Vec3 pos = m.preMult(osg::Vec3(16, 16, 0));
// cast to int's, otherwise text comes out ugly
altStr->setLineSpacing(_font_spacing);
stringstream text;
altStr->setAlignment(osgText::Text::LEFT_CENTER);
int altDif = (alt-user_alt+50)/100;
char sign = 0;
int dy=0;
if (altDif>=0)
{
sign='+';
dy=2;
}
else
if (altDif<0)
{
sign='-';
altDif = -altDif;
dy=-30;
}
altStr->setPosition(osg::Vec3((int)pos.x()-30, (int)pos.y()+dy, 0));
if (absMode)
{
// absolute altitude display
text << setprecision(0) << fixed
<< setw(3) << setfill('0') << alt/100 << endl;
}
else // relative altitude display
if (sign)
{
text << sign
<< setprecision(0) << fixed
<< setw(2) << setfill('0') << altDif << endl;
}
altStr->setText(text.str());
_textGeode->addDrawable(altStr);
}
return true;
}
void NavDisplay::update_data(const SGPropertyNode *ac, double altitude, double heading,
double radius, double bearing, bool selected)
{
osgText::Text *callsign = new osgText::Text;
callsign->setFont(_font.get());
callsign->setFontResolution(12, 12);
callsign->setCharacterSize(_font_size);
callsign->setColor(selected ? osg::Vec4(1, 1, 1, 1) : _font_color);
osg::Matrixf m(wxRotate(-bearing)
* osg::Matrixf::translate(0.0f, radius, 0.0f)
* wxRotate(bearing) * _centerTrans);
osg::Vec3 pos = m.preMult(osg::Vec3(16, 16, 0));
// cast to int's, otherwise text comes out ugly
callsign->setPosition(osg::Vec3((int)pos.x(), (int)pos.y(), 0));
callsign->setAlignment(osgText::Text::LEFT_BOTTOM_BASE_LINE);
callsign->setLineSpacing(_font_spacing);
const char *identity = ac->getStringValue("transponder-id");
if (!identity[0])
identity = ac->getStringValue("callsign");
stringstream text;
text << identity << endl
<< setprecision(0) << fixed
<< setw(3) << setfill('0') << heading * SG_RADIANS_TO_DEGREES << "\xB0 "
<< setw(0) << altitude << "ft" << endl
<< ac->getDoubleValue("velocities/true-airspeed-kt") << "kts";
callsign->setText(text.str());
_textGeode->addDrawable(callsign);
}
void
NavDisplay::updateFont()
{
float red = _font_node->getFloatValue("color/red");
float green = _font_node->getFloatValue("color/green");
float blue = _font_node->getFloatValue("color/blue");
float alpha = _font_node->getFloatValue("color/alpha");
_font_color.set(red, green, blue, alpha);
_font_size = _font_node->getFloatValue("size");
_font_spacing = _font_size * _font_node->getFloatValue("line-spacing");
string path = _font_node->getStringValue("name", DEFAULT_FONT);
SGPath tpath;
if (path[0] != '/') {
tpath = globals->get_fg_root();
tpath.append("Fonts");
tpath.append(path);
} else {
tpath = path;
}
#if (FG_OSG_VERSION >= 21000)
osg::ref_ptr<osgDB::ReaderWriter::Options> fontOptions = new osgDB::ReaderWriter::Options("monochrome");
osg::ref_ptr<osgText::Font> font = osgText::readFontFile(tpath.c_str(), fontOptions.get());
#else
osg::ref_ptr<osgText::Font> font = osgText::readFontFile(tpath.c_str());
#endif
if (font != 0) {
_font = font;
_font->setMinFilterHint(osg::Texture::NEAREST);
_font->setMagFilterHint(osg::Texture::NEAREST);
_font->setGlyphImageMargin(0);
_font->setGlyphImageMarginRatio(0);
}
for (int i=0;i<4;i++)
{
const float defaultColors[4][3] = {{0,1,1},{0,1,1},{1,0.5,0},{1,0,0}};
SGPropertyNode_ptr color_node = _font_node->getNode("tcas/color",i,true);
float red = color_node->getFloatValue("red",defaultColors[i][0]);
float green = color_node->getFloatValue("green",defaultColors[i][1]);
float blue = color_node->getFloatValue("blue",defaultColors[i][2]);
float alpha = color_node->getFloatValue("alpha",1);
_tcas_colors[i]=osg::Vec4(red, green, blue, alpha);
}
}

150
src/Instrumentation/NavDisplay.hxx Normal file
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@ -0,0 +1,150 @@
// Wx Radar background texture
//
// Written by Harald JOHNSEN, started May 2005.
// With major amendments by Vivian MEAZZA May 2007
// Ported to OSG by Tim MOORE Jun 2007
//
// Copyright (C) 2005 Harald JOHNSEN - hjohnsen@evc.net
//
// 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.
#ifndef _INST_ND_HXX
#define _INST_ND_HXX
#include <osg/ref_ptr>
#include <osg/Geode>
#include <osg/Texture2D>
#include <osgText/Text>
#include <simgear/props/props.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/math/sg_geodesy.hxx>
#include <vector>
#include <string>
class FGODGauge;
class FGRouteMgr;
class NavDisplay : public SGSubsystem
{
public:
NavDisplay(SGPropertyNode *node);
virtual ~NavDisplay();
virtual void init();
virtual void update(double dt);
protected:
string _name;
int _num;
double _time;
double _interval;
double _elapsed_time;
double _persistance;
bool _sim_init_done;
SGPropertyNode_ptr _serviceable_node;
SGPropertyNode_ptr _Instrument;
SGPropertyNode_ptr _radar_mode_control_node;
SGPropertyNode_ptr _user_lat_node;
SGPropertyNode_ptr _user_lon_node;
SGPropertyNode_ptr _user_heading_node;
SGPropertyNode_ptr _user_alt_node;
FGODGauge *_odg;
// Convenience function for creating a property node with a
// default value
template<typename DefaultType>
SGPropertyNode *getInstrumentNode(const char *name, DefaultType value);
private:
string _texture_path;
typedef enum { ARC, MAP, PLAN, ROSE, BSCAN} DisplayMode;
DisplayMode _display_mode;
float _scale; // factor to convert nm to display units
float _angle_offset;
float _view_heading;
float _x_offset, _y_offset;
double _radar_ref_rng;
double _lat, _lon;
bool _drawData;
SGPropertyNode_ptr _Radar_controls;
SGPropertyNode_ptr _radar_weather_node;
SGPropertyNode_ptr _radar_position_node;
SGPropertyNode_ptr _radar_data_node;
SGPropertyNode_ptr _radar_symbol_node;
SGPropertyNode_ptr _radar_centre_node;
SGPropertyNode_ptr _radar_coverage_node;
SGPropertyNode_ptr _radar_ref_rng_node;
SGPropertyNode_ptr _radar_hdg_marker_node;
SGPropertyNode_ptr _radar_rotate_node;
SGPropertyNode_ptr _radar_tcas_node;
SGPropertyNode_ptr _radar_absalt_node;
SGPropertyNode_ptr _font_node;
SGPropertyNode_ptr _ai_enabled_node;
osg::ref_ptr<osg::Texture2D> _resultTexture;
osg::ref_ptr<osg::Texture2D> _symbols;
osg::ref_ptr<osg::Geode> _radarGeode;
osg::ref_ptr<osg::Geode> _textGeode;
osg::Geometry *_geom;
osg::DrawArrays* _symbolPrimSet;
osg::Vec2Array *_vertices;
osg::Vec2Array *_texCoords;
osg::Geometry* _lineGeometry;
osg::DrawArrays* _linePrimSet;
osg::Vec2Array* _lineVertices;
osg::Vec3Array* _lineColors;
osg::Matrixf _centerTrans;
osg::ref_ptr<osgText::Font> _font;
osg::Vec4 _font_color;
osg::Vec4 _tcas_colors[4];
float _font_size;
float _font_spacing;
FGRouteMgr* _route;
SGGeod _pos;
double _rangeNm;
void update_route();
void update_aircraft();
bool update_tcas(const SGPropertyNode *model,double range,double user_alt,double alt,
double bearing,double radius, bool absMode);
void update_data(const SGPropertyNode *ac, double altitude, double heading,
double radius, double bearing, bool selected);
void updateFont();
osg::Matrixf project(const SGGeod& geod) const;
void addSymbol(const SGGeod& pos, int symbolIndex, const std::string& data);
};
#endif // _INST_ND_HXX

6
src/Instrumentation/instrument_mgr.cxx
View file

@ -52,6 +52,7 @@
#include "agradar.hxx"
#include "rad_alt.hxx"
#include "tcas.hxx"
#include "NavDisplay.hxx"
FGInstrumentMgr::FGInstrumentMgr () :
_explicitGps(false)
@ -227,7 +228,10 @@ bool FGInstrumentMgr::build (SGPropertyNode* config_props)
} else if ( name == "tcas" ) {
set_subsystem( id, new TCAS( node ) );
} else if ( name == "navigation-display" ) {
set_subsystem( id, new NavDisplay( node ) );
} else {
SG_LOG( SG_ALL, SG_ALERT, "Unknown top level section: "
<< name );