928 lines
28 KiB
C++
928 lines
28 KiB
C++
// viewmgr.cxx -- class for managing all the views in the flightgear world.
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//
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// Written by Curtis Olson, started October 2000.
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// partially rewritten by Jim Wilson March 2002
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//
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// Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
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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 "viewmgr.hxx"
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#include <string.h> // strcmp
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#include <simgear/compiler.h>
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#include <simgear/sound/soundmgr_openal.hxx>
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#include <Model/acmodel.hxx>
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#include <Main/viewer.hxx>
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#include <Main/fg_props.hxx>
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// Constructor
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FGViewMgr::FGViewMgr( void ) :
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axis_long(0),
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axis_lat(0),
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view_number(fgGetNode("/sim/current-view/view-number", true)),
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config_list(fgGetNode("/sim", true)->getChildren("view")),
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current(0)
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{
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smgr = globals->get_soundmgr();
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}
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// Destructor
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FGViewMgr::~FGViewMgr( void ) {
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}
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void
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FGViewMgr::init ()
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{
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double aspect_ratio_multiplier
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= fgGetDouble("/sim/current-view/aspect-ratio-multiplier");
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for (unsigned int i = 0; i < config_list.size(); i++) {
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SGPropertyNode *n = config_list[i];
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// find out if this is an internal view (e.g. in cockpit, low near plane)
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bool internal = n->getBoolValue("internal", false);
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// FIXME:
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// this is assumed to be an aircraft model...we will need to read
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// model-from-type as well.
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// find out if this is a model we are looking from...
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bool from_model = n->getBoolValue("config/from-model");
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int from_model_index = n->getIntValue("config/from-model-idx");
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double x_offset_m = n->getDoubleValue("config/x-offset-m");
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double y_offset_m = n->getDoubleValue("config/y-offset-m");
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double z_offset_m = n->getDoubleValue("config/z-offset-m");
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double heading_offset_deg = n->getDoubleValue("config/heading-offset-deg");
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n->setDoubleValue("config/heading-offset-deg", heading_offset_deg);
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double pitch_offset_deg = n->getDoubleValue("config/pitch-offset-deg");
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n->setDoubleValue("config/pitch-offset-deg", pitch_offset_deg);
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double roll_offset_deg = n->getDoubleValue("config/roll-offset-deg");
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n->setDoubleValue("config/roll-offset-deg", roll_offset_deg);
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double fov_deg = n->getDoubleValue("config/default-field-of-view-deg");
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double near_m = n->getDoubleValue("config/ground-level-nearplane-m");
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// supporting two types "lookat" = 1 and "lookfrom" = 0
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const char *type = n->getStringValue("type");
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if (!strcmp(type, "lookat")) {
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bool at_model = n->getBoolValue("config/at-model");
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int at_model_index = n->getIntValue("config/at-model-idx");
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double damp_roll = n->getDoubleValue("config/at-model-roll-damping");
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double damp_pitch = n->getDoubleValue("config/at-model-pitch-damping");
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double damp_heading = n->getDoubleValue("config/at-model-heading-damping");
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double target_x_offset_m = n->getDoubleValue("config/target-x-offset-m");
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double target_y_offset_m = n->getDoubleValue("config/target-y-offset-m");
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double target_z_offset_m = n->getDoubleValue("config/target-z-offset-m");
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add_view(new FGViewer ( FG_LOOKAT, from_model, from_model_index,
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at_model, at_model_index,
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damp_roll, damp_pitch, damp_heading,
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x_offset_m, y_offset_m,z_offset_m,
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heading_offset_deg, pitch_offset_deg,
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roll_offset_deg, fov_deg, aspect_ratio_multiplier,
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target_x_offset_m, target_y_offset_m,
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target_z_offset_m, near_m, internal ));
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} else {
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add_view(new FGViewer ( FG_LOOKFROM, from_model, from_model_index,
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false, 0, 0.0, 0.0, 0.0,
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x_offset_m, y_offset_m, z_offset_m,
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heading_offset_deg, pitch_offset_deg,
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roll_offset_deg, fov_deg, aspect_ratio_multiplier,
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0, 0, 0, near_m, internal ));
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}
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}
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copyToCurrent();
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}
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void
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FGViewMgr::reinit ()
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{
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// reset offsets and fov to configuration defaults
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for (unsigned int i = 0; i < config_list.size(); i++) {
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SGPropertyNode *n = config_list[i];
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setView(i);
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fgSetDouble("/sim/current-view/x-offset-m",
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n->getDoubleValue("config/x-offset-m"));
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fgSetDouble("/sim/current-view/y-offset-m",
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n->getDoubleValue("config/y-offset-m"));
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fgSetDouble("/sim/current-view/z-offset-m",
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n->getDoubleValue("config/z-offset-m"));
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fgSetDouble("/sim/current-view/pitch-offset-deg",
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n->getDoubleValue("config/pitch-offset-deg"));
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fgSetDouble("/sim/current-view/heading-offset-deg",
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n->getDoubleValue("config/heading-offset-deg"));
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fgSetDouble("/sim/current-view/roll-offset-deg",
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n->getDoubleValue("config/roll-offset-deg"));
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double fov_deg = n->getDoubleValue("config/default-field-of-view-deg");
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if (fov_deg < 10.0)
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fov_deg = 55.0;
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fgSetDouble("/sim/current-view/field-of-view", fov_deg);
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// target offsets for lookat mode only...
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fgSetDouble("/sim/current-view/target-x-offset-m",
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n->getDoubleValue("config/target-x-offset-m"));
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fgSetDouble("/sim/current-view/target-y-offset-m",
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n->getDoubleValue("config/target-y-offset-m"));
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fgSetDouble("/sim/current-view/target-z-offset-m",
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n->getDoubleValue("config/target-z-offset-m"));
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}
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setView(0);
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}
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typedef double (FGViewMgr::*double_getter)() const;
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void
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FGViewMgr::bind ()
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{
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// these are bound to the current view properties
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fgTie("/sim/current-view/heading-offset-deg", this,
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&FGViewMgr::getViewHeadingOffset_deg,
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&FGViewMgr::setViewHeadingOffset_deg);
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fgSetArchivable("/sim/current-view/heading-offset-deg");
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fgTie("/sim/current-view/goal-heading-offset-deg", this,
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&FGViewMgr::getViewGoalHeadingOffset_deg,
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&FGViewMgr::setViewGoalHeadingOffset_deg);
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fgSetArchivable("/sim/current-view/goal-heading-offset-deg");
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fgTie("/sim/current-view/pitch-offset-deg", this,
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&FGViewMgr::getViewPitchOffset_deg,
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&FGViewMgr::setViewPitchOffset_deg);
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fgSetArchivable("/sim/current-view/pitch-offset-deg");
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fgTie("/sim/current-view/goal-pitch-offset-deg", this,
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&FGViewMgr::getGoalViewPitchOffset_deg,
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&FGViewMgr::setGoalViewPitchOffset_deg);
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fgSetArchivable("/sim/current-view/goal-pitch-offset-deg");
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fgTie("/sim/current-view/roll-offset-deg", this,
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&FGViewMgr::getViewRollOffset_deg,
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&FGViewMgr::setViewRollOffset_deg);
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fgSetArchivable("/sim/current-view/roll-offset-deg");
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fgTie("/sim/current-view/goal-roll-offset-deg", this,
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&FGViewMgr::getGoalViewRollOffset_deg,
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&FGViewMgr::setGoalViewRollOffset_deg);
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fgSetArchivable("/sim/current-view/goal-roll-offset-deg");
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fgTie("/sim/current-view/view-number", this,
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&FGViewMgr::getView, &FGViewMgr::setView);
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fgSetArchivable("/sim/current-view/view-number", FALSE);
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fgTie("/sim/current-view/axes/long", this,
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(double_getter)0, &FGViewMgr::setViewAxisLong);
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fgSetArchivable("/sim/current-view/axes/long");
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fgTie("/sim/current-view/axes/lat", this,
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(double_getter)0, &FGViewMgr::setViewAxisLat);
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fgSetArchivable("/sim/current-view/axes/lat");
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fgTie("/sim/current-view/field-of-view", this,
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&FGViewMgr::getFOV_deg, &FGViewMgr::setFOV_deg);
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fgSetArchivable("/sim/current-view/field-of-view");
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fgTie("/sim/current-view/aspect-ratio-multiplier", this,
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&FGViewMgr::getARM_deg, &FGViewMgr::setARM_deg);
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fgSetArchivable("/sim/current-view/field-of-view");
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fgTie("/sim/current-view/ground-level-nearplane-m", this,
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&FGViewMgr::getNear_m, &FGViewMgr::setNear_m);
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fgSetArchivable("/sim/current-view/ground-level-nearplane-m");
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SGPropertyNode *n = fgGetNode("/sim/current-view", true);
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n->tie("viewer-x-m", SGRawValuePointer<double>(&abs_viewer_position[0]));
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n->tie("viewer-y-m", SGRawValuePointer<double>(&abs_viewer_position[1]));
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n->tie("viewer-z-m", SGRawValuePointer<double>(&abs_viewer_position[2]));
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// for automatic untying:
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#define x(str) ((void)tied_props.push_back(str), str)
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fgTie(x("/sim/current-view/debug/orientation-w"), this,
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&FGViewMgr::getCurrentViewOrientation_w);
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fgTie(x("/sim/current-view/debug/orientation-x"), this,
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&FGViewMgr::getCurrentViewOrientation_x);
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fgTie(x("/sim/current-view/debug/orientation-y"), this,
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&FGViewMgr::getCurrentViewOrientation_y);
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fgTie(x("/sim/current-view/debug/orientation-z"), this,
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&FGViewMgr::getCurrentViewOrientation_z);
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fgTie(x("/sim/current-view/debug/orientation_offset-w"), this,
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&FGViewMgr::getCurrentViewOrOffset_w);
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fgTie(x("/sim/current-view/debug/orientation_offset-x"), this,
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&FGViewMgr::getCurrentViewOrOffset_x);
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fgTie(x("/sim/current-view/debug/orientation_offset-y"), this,
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&FGViewMgr::getCurrentViewOrOffset_y);
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fgTie(x("/sim/current-view/debug/orientation_offset-z"), this,
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&FGViewMgr::getCurrentViewOrOffset_z);
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fgTie(x("/sim/current-view/debug/frame-w"), this,
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&FGViewMgr::getCurrentViewFrame_w);
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fgTie(x("/sim/current-view/debug/frame-x"), this,
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&FGViewMgr::getCurrentViewFrame_x);
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fgTie(x("/sim/current-view/debug/frame-y"), this,
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&FGViewMgr::getCurrentViewFrame_y);
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fgTie(x("/sim/current-view/debug/frame-z"), this,
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&FGViewMgr::getCurrentViewFrame_z);
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#undef x
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}
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void
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FGViewMgr::unbind ()
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{
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// FIXME:
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// need to redo these bindings to the new locations (move to viewer?)
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fgUntie("/sim/current-view/heading-offset-deg");
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fgUntie("/sim/current-view/goal-heading-offset-deg");
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fgUntie("/sim/current-view/pitch-offset-deg");
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fgUntie("/sim/current-view/goal-pitch-offset-deg");
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fgUntie("/sim/current-view/field-of-view");
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fgUntie("/sim/current-view/aspect-ratio-multiplier");
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fgUntie("/sim/current-view/view-number");
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fgUntie("/sim/current-view/axes/long");
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fgUntie("/sim/current-view/axes/lat");
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fgUntie("/sim/current-view/ground-level-nearplane-m");
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fgUntie("/sim/current-view/viewer-x-m");
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fgUntie("/sim/current-view/viewer-y-m");
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fgUntie("/sim/current-view/viewer-z-m");
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list<const char*>::const_iterator it;
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for (it = tied_props.begin(); it != tied_props.end(); it++){
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fgUntie(*it);
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}
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}
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void
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FGViewMgr::update (double dt)
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{
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FGViewer *loop_view = (FGViewer *)get_current_view();
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if (loop_view == 0) return;
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SGPropertyNode *n = config_list[current];
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double lon_deg, lat_deg, alt_ft, roll_deg, pitch_deg, heading_deg;
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// Set up view location and orientation
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if (!n->getBoolValue("config/from-model")) {
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lon_deg = fgGetDouble(n->getStringValue("config/eye-lon-deg-path"));
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lat_deg = fgGetDouble(n->getStringValue("config/eye-lat-deg-path"));
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alt_ft = fgGetDouble(n->getStringValue("config/eye-alt-ft-path"));
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roll_deg = fgGetDouble(n->getStringValue("config/eye-roll-deg-path"));
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pitch_deg = fgGetDouble(n->getStringValue("config/eye-pitch-deg-path"));
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heading_deg = fgGetDouble(n->getStringValue("config/eye-heading-deg-path"));
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loop_view->setPosition(lon_deg, lat_deg, alt_ft);
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loop_view->setOrientation(roll_deg, pitch_deg, heading_deg);
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} else {
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// force recalc in viewer
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loop_view->set_dirty();
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}
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// if lookat (type 1) then get target data...
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if (loop_view->getType() == FG_LOOKAT) {
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if (!n->getBoolValue("config/from-model")) {
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lon_deg = fgGetDouble(n->getStringValue("config/target-lon-deg-path"));
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lat_deg = fgGetDouble(n->getStringValue("config/target-lat-deg-path"));
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alt_ft = fgGetDouble(n->getStringValue("config/target-alt-ft-path"));
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roll_deg = fgGetDouble(n->getStringValue("config/target-roll-deg-path"));
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pitch_deg = fgGetDouble(n->getStringValue("config/target-pitch-deg-path"));
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heading_deg = fgGetDouble(n->getStringValue("config/target-heading-deg-path"));
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loop_view->setTargetPosition(lon_deg, lat_deg, alt_ft);
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loop_view->setTargetOrientation(roll_deg, pitch_deg, heading_deg);
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} else {
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loop_view->set_dirty();
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}
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}
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setViewXOffset_m(fgGetDouble("/sim/current-view/x-offset-m"));
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setViewYOffset_m(fgGetDouble("/sim/current-view/y-offset-m"));
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setViewZOffset_m(fgGetDouble("/sim/current-view/z-offset-m"));
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setViewTargetXOffset_m(fgGetDouble("/sim/current-view/target-x-offset-m"));
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setViewTargetYOffset_m(fgGetDouble("/sim/current-view/target-y-offset-m"));
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setViewTargetZOffset_m(fgGetDouble("/sim/current-view/target-z-offset-m"));
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current_view_orientation = loop_view->getViewOrientation();
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current_view_or_offset = loop_view->getViewOrientationOffset();
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// Update the current view
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do_axes();
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loop_view->update(dt);
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abs_viewer_position = loop_view->getViewPosition();
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// update audio listener values
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// set the viewer posotion in Cartesian coordinates in meters
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smgr->set_position( abs_viewer_position );
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smgr->set_orientation( current_view_orientation );
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// get the model velocity
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SGVec3f velocity = SGVec3f::zeros();
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if ( !stationary() ) {
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velocity = globals->get_aircraft_model()->getVelocity();
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}
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smgr->set_velocity(velocity);
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}
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void
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FGViewMgr::copyToCurrent()
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{
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SGPropertyNode *n = config_list[current];
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fgSetString("/sim/current-view/name", n->getStringValue("name"));
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fgSetString("/sim/current-view/type", n->getStringValue("type"));
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// copy certain view config data for default values
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fgSetDouble("/sim/current-view/config/heading-offset-deg",
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n->getDoubleValue("config/default-heading-offset-deg"));
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fgSetDouble("/sim/current-view/config/pitch-offset-deg",
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n->getDoubleValue("config/pitch-offset-deg"));
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fgSetDouble("/sim/current-view/config/roll-offset-deg",
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n->getDoubleValue("config/roll-offset-deg"));
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fgSetDouble("/sim/current-view/config/default-field-of-view-deg",
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n->getDoubleValue("config/default-field-of-view-deg"));
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fgSetBool("/sim/current-view/config/from-model",
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n->getBoolValue("config/from-model"));
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// copy view data
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fgSetDouble("/sim/current-view/x-offset-m", getViewXOffset_m());
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fgSetDouble("/sim/current-view/y-offset-m", getViewYOffset_m());
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fgSetDouble("/sim/current-view/z-offset-m", getViewZOffset_m());
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fgSetDouble("/sim/current-view/goal-heading-offset-deg",
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get_current_view()->getGoalHeadingOffset_deg());
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fgSetDouble("/sim/current-view/goal-pitch-offset-deg",
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get_current_view()->getGoalPitchOffset_deg());
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fgSetDouble("/sim/current-view/goal-roll-offset-deg",
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get_current_view()->getRollOffset_deg());
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fgSetDouble("/sim/current-view/heading-offset-deg",
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get_current_view()->getHeadingOffset_deg());
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fgSetDouble("/sim/current-view/pitch-offset-deg",
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get_current_view()->getPitchOffset_deg());
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fgSetDouble("/sim/current-view/roll-offset-deg",
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get_current_view()->getRollOffset_deg());
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fgSetDouble("/sim/current-view/target-x-offset-m",
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get_current_view()->getTargetXOffset_m());
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fgSetDouble("/sim/current-view/target-y-offset-m",
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get_current_view()->getTargetYOffset_m());
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fgSetDouble("/sim/current-view/target-z-offset-m",
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get_current_view()->getTargetZOffset_m());
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fgSetBool("/sim/current-view/internal",
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get_current_view()->getInternal());
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}
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void FGViewMgr::clear()
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{
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views.clear();
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}
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FGViewer*
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FGViewMgr::get_current_view()
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{
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if ( current < (int)views.size() ) {
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return views[current];
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} else {
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return NULL;
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}
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}
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const FGViewer*
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FGViewMgr::get_current_view() const
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{
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if ( current < (int)views.size() ) {
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return views[current];
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} else {
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return NULL;
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}
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}
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FGViewer*
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FGViewMgr::get_view( int i )
|
|
{
|
|
if ( i < 0 ) { i = 0; }
|
|
if ( i >= (int)views.size() ) { i = views.size() - 1; }
|
|
return views[i];
|
|
}
|
|
|
|
const FGViewer*
|
|
FGViewMgr::get_view( int i ) const
|
|
{
|
|
if ( i < 0 ) { i = 0; }
|
|
if ( i >= (int)views.size() ) { i = views.size() - 1; }
|
|
return views[i];
|
|
}
|
|
|
|
FGViewer*
|
|
FGViewMgr::next_view()
|
|
{
|
|
setView((current+1 < (int)views.size()) ? (current + 1) : 0);
|
|
view_number->fireValueChanged();
|
|
return views[current];
|
|
}
|
|
|
|
FGViewer*
|
|
FGViewMgr::prev_view()
|
|
{
|
|
setView((0 < current) ? (current - 1) : (views.size() - 1));
|
|
view_number->fireValueChanged();
|
|
return views[current];
|
|
}
|
|
|
|
void
|
|
FGViewMgr::add_view( FGViewer * v )
|
|
{
|
|
views.push_back(v);
|
|
v->init();
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getViewHeadingOffset_deg () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
return (view == 0 ? 0 : view->getHeadingOffset_deg());
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewHeadingOffset_deg (double offset)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
view->setGoalHeadingOffset_deg(offset);
|
|
view->setHeadingOffset_deg(offset);
|
|
}
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getViewGoalHeadingOffset_deg () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
return (view == 0 ? 0 : view->getGoalHeadingOffset_deg());
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewGoalHeadingOffset_deg (double offset)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0)
|
|
view->setGoalHeadingOffset_deg(offset);
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getViewPitchOffset_deg () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
return (view == 0 ? 0 : view->getPitchOffset_deg());
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewPitchOffset_deg (double tilt)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
view->setGoalPitchOffset_deg(tilt);
|
|
view->setPitchOffset_deg(tilt);
|
|
}
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getGoalViewPitchOffset_deg () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
return (view == 0 ? 0 : view->getGoalPitchOffset_deg());
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setGoalViewPitchOffset_deg (double tilt)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0)
|
|
view->setGoalPitchOffset_deg(tilt);
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getViewRollOffset_deg () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
return (view == 0 ? 0 : view->getRollOffset_deg());
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewRollOffset_deg (double tilt)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
view->setGoalRollOffset_deg(tilt);
|
|
view->setRollOffset_deg(tilt);
|
|
}
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getGoalViewRollOffset_deg () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
return (view == 0 ? 0 : view->getGoalRollOffset_deg());
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setGoalViewRollOffset_deg (double tilt)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0)
|
|
view->setGoalRollOffset_deg(tilt);
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getViewXOffset_m () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
return ((FGViewer *)view)->getXOffset_m();
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewXOffset_m (double x)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
view->setXOffset_m(x);
|
|
}
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getViewYOffset_m () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
return ((FGViewer *)view)->getYOffset_m();
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewYOffset_m (double y)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
view->setYOffset_m(y);
|
|
}
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getViewZOffset_m () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
return ((FGViewer *)view)->getZOffset_m();
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewZOffset_m (double z)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
view->setZOffset_m(z);
|
|
}
|
|
}
|
|
|
|
bool
|
|
FGViewMgr::stationary () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
if (((FGViewer *)view)->getXOffset_m() == 0.0 &&
|
|
((FGViewer *)view)->getYOffset_m() == 0.0 &&
|
|
((FGViewer *)view)->getZOffset_m() == 0.0)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getViewTargetXOffset_m () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
return ((FGViewer *)view)->getTargetXOffset_m();
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewTargetXOffset_m (double x)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
view->setTargetXOffset_m(x);
|
|
}
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getViewTargetYOffset_m () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
return ((FGViewer *)view)->getTargetYOffset_m();
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewTargetYOffset_m (double y)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
view->setTargetYOffset_m(y);
|
|
}
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getViewTargetZOffset_m () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
return ((FGViewer *)view)->getTargetZOffset_m();
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewTargetZOffset_m (double z)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0) {
|
|
view->setTargetZOffset_m(z);
|
|
}
|
|
}
|
|
|
|
int
|
|
FGViewMgr::getView () const
|
|
{
|
|
return ( current );
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setView (int newview)
|
|
{
|
|
// negative numbers -> set view with node index -newview
|
|
if (newview < 0) {
|
|
for (int i = 0; i < (int)config_list.size(); i++) {
|
|
int index = -config_list[i]->getIndex();
|
|
if (index == newview)
|
|
newview = i;
|
|
}
|
|
if (newview < 0)
|
|
return;
|
|
}
|
|
|
|
// if newview number too low wrap to last view...
|
|
if (newview < 0)
|
|
newview = (int)views.size() - 1;
|
|
|
|
// if newview number to high wrap to zero...
|
|
if (newview >= (int)views.size())
|
|
newview = 0;
|
|
|
|
// set new view
|
|
set_view(newview);
|
|
// copy in view data
|
|
copyToCurrent();
|
|
|
|
// Copy the fdm's position into the SGLocation which is shared with
|
|
// some views ...
|
|
globals->get_aircraft_model()->update(0);
|
|
// Do the update ...
|
|
update(0);
|
|
}
|
|
|
|
|
|
double
|
|
FGViewMgr::getFOV_deg () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
return (view == 0 ? 0 : view->get_fov());
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setFOV_deg (double fov)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0)
|
|
view->set_fov(fov);
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getARM_deg () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
return (view == 0 ? 0 : view->get_aspect_ratio_multiplier());
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setARM_deg (double aspect_ratio_multiplier)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0)
|
|
view->set_aspect_ratio_multiplier(aspect_ratio_multiplier);
|
|
}
|
|
|
|
double
|
|
FGViewMgr::getNear_m () const
|
|
{
|
|
const FGViewer * view = get_current_view();
|
|
return (view == 0 ? 0.5f : view->getNear_m());
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setNear_m (double near_m)
|
|
{
|
|
FGViewer * view = get_current_view();
|
|
if (view != 0)
|
|
view->setNear_m(near_m);
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewAxisLong (double axis)
|
|
{
|
|
axis_long = axis;
|
|
}
|
|
|
|
void
|
|
FGViewMgr::setViewAxisLat (double axis)
|
|
{
|
|
axis_lat = axis;
|
|
}
|
|
|
|
// reference frame orientation.
|
|
// This is the view orientation you get when you have no
|
|
// view offset, i.e. the offset operator is the identity.
|
|
//
|
|
// For example, in the familiar "cockpit lookfrom" view,
|
|
// the reference frame is equal to the aircraft attitude,
|
|
// i.e. it is the view looking towards 12:00 straight ahead.
|
|
//
|
|
// FIXME: Somebody needs to figure out what is the reference
|
|
// frame view for the other view modes.
|
|
//
|
|
// Conceptually, this quat represents a rotation relative
|
|
// to the ECEF reference orientation, as described at
|
|
// http://www.av8n.com/physics/coords.htm#sec-orientation
|
|
//
|
|
// See the NOTE concerning reference orientations, below.
|
|
//
|
|
// The components of this quat are expressed in
|
|
// the conventional aviation basis set,
|
|
// i.e. x=forward, y=starboard, z=bottom
|
|
double FGViewMgr::getCurrentViewFrame_w() const{
|
|
return ((current_view_orientation*conj(fsb2sta())*conj(current_view_or_offset))).w();
|
|
}
|
|
double FGViewMgr::getCurrentViewFrame_x() const{
|
|
return ((current_view_orientation*conj(fsb2sta())*conj(current_view_or_offset))).x();
|
|
}
|
|
double FGViewMgr::getCurrentViewFrame_y() const{
|
|
return ((current_view_orientation*conj(fsb2sta())*conj(current_view_or_offset))).y();
|
|
}
|
|
double FGViewMgr::getCurrentViewFrame_z() const{
|
|
return ((current_view_orientation*conj(fsb2sta())*conj(current_view_or_offset))).z();
|
|
}
|
|
|
|
|
|
// view offset.
|
|
// This rotation takes you from the aforementioned
|
|
// reference frame view orientation to whatever
|
|
// actual current view orientation is.
|
|
//
|
|
// The components of this quaternion are expressed in
|
|
// the conventional aviation basis set,
|
|
// i.e. x=forward, y=starboard, z=bottom
|
|
double FGViewMgr::getCurrentViewOrOffset_w() const{
|
|
return current_view_or_offset.w();
|
|
}
|
|
double FGViewMgr::getCurrentViewOrOffset_x() const{
|
|
return current_view_or_offset.x();
|
|
}
|
|
double FGViewMgr::getCurrentViewOrOffset_y() const{
|
|
return current_view_or_offset.y();
|
|
}
|
|
double FGViewMgr::getCurrentViewOrOffset_z() const{
|
|
return current_view_or_offset.z();
|
|
}
|
|
|
|
|
|
// current view orientation.
|
|
// This is a rotation relative to the earth-centered (ec)
|
|
// reference frame.
|
|
//
|
|
// NOTE: Here we remove a factor of fsb2sta so that
|
|
// the components of this quat are displayed using the
|
|
// conventional ECEF basis set. This is *not* the way
|
|
// the view orientation is stored in the views[] array,
|
|
// but is easier for non-graphics hackers to understand.
|
|
// If we did not remove this factor of fsb2sta here and
|
|
// in getCurrentViewFrame, that would be equivalent to
|
|
// the following peculiar reference orientation:
|
|
// Suppose you are over the Gulf of Guinea, at (lat,lon) = (0,0).
|
|
// Then the reference frame orientation can be achieved via:
|
|
// -- The aircraft X-axis (nose) headed south.
|
|
// -- The aircraft Y-axis (starboard wingtip) pointing up.
|
|
// -- The aircraft Z-axis (belly) pointing west.
|
|
// To say the same thing in other words, and perhaps more to the
|
|
// point: If we use the OpenGL camera orientation conventions,
|
|
// i.e. Xprime=starboard, Yprime=top, Zprime=aft, then the
|
|
// aforementioned peculiar reference orientation at (lat,lon)
|
|
// = (0,0) can be described as:
|
|
// -- aircraft Xprime axis (starboard) pointed up
|
|
// -- aircraft Yprime axis (top) pointed east
|
|
// -- aircraft Zprime axis (aft) pointed north
|
|
// meaning the OpenGL axes are aligned with the ECEF axes.
|
|
double FGViewMgr::getCurrentViewOrientation_w() const{
|
|
return (current_view_orientation * conj(fsb2sta())).w();
|
|
}
|
|
double FGViewMgr::getCurrentViewOrientation_x() const{
|
|
return (current_view_orientation * conj(fsb2sta())).x();
|
|
}
|
|
double FGViewMgr::getCurrentViewOrientation_y() const{
|
|
return (current_view_orientation * conj(fsb2sta())).y();
|
|
}
|
|
double FGViewMgr::getCurrentViewOrientation_z() const{
|
|
return (current_view_orientation * conj(fsb2sta())).z();
|
|
}
|
|
|
|
void
|
|
FGViewMgr::do_axes ()
|
|
{
|
|
// Take no action when hat is centered
|
|
if ( ( axis_long < 0.01 ) &&
|
|
( axis_long > -0.01 ) &&
|
|
( axis_lat < 0.01 ) &&
|
|
( axis_lat > -0.01 )
|
|
)
|
|
return;
|
|
|
|
double viewDir = 999;
|
|
|
|
/* Do all the quick and easy cases */
|
|
if (axis_long < 0) { // Longitudinal axis forward
|
|
if (axis_lat == axis_long)
|
|
viewDir = fgGetDouble("/sim/view/config/front-left-direction-deg");
|
|
else if (axis_lat == - axis_long)
|
|
viewDir = fgGetDouble("/sim/view/config/front-right-direction-deg");
|
|
else if (axis_lat == 0)
|
|
viewDir = fgGetDouble("/sim/view/config/front-direction-deg");
|
|
} else if (axis_long > 0) { // Longitudinal axis backward
|
|
if (axis_lat == - axis_long)
|
|
viewDir = fgGetDouble("/sim/view/config/back-left-direction-deg");
|
|
else if (axis_lat == axis_long)
|
|
viewDir = fgGetDouble("/sim/view/config/back-right-direction-deg");
|
|
else if (axis_lat == 0)
|
|
viewDir = fgGetDouble("/sim/view/config/back-direction-deg");
|
|
} else if (axis_long == 0) { // Longitudinal axis neutral
|
|
if (axis_lat < 0)
|
|
viewDir = fgGetDouble("/sim/view/config/left-direction-deg");
|
|
else if (axis_lat > 0)
|
|
viewDir = fgGetDouble("/sim/view/config/right-direction-deg");
|
|
else return; /* And assertion failure maybe? */
|
|
}
|
|
|
|
// Do all the difficult cases
|
|
if ( viewDir > 900 )
|
|
viewDir = SGD_RADIANS_TO_DEGREES * atan2 ( -axis_lat, -axis_long );
|
|
if ( viewDir < -1 ) viewDir += 360;
|
|
|
|
get_current_view()->setGoalHeadingOffset_deg(viewDir);
|
|
}
|