#include <simgear/math/sg_geodesy.hxx>
#include <Scenery/scenery.hxx>
-//#include <Main/location.hxx>
#include <simgear/math/vector.hxx>
#include <Main/globals.hxx>
#include <Model/acmodel.hxx>
+#include <Model/model.hxx>
#include "viewer.hxx"
FGViewer::updateFromModelLocation (FGLocation * location)
{
sgCopyMat4(LOCAL, location->getCachedTransformMatrix());
- _lon_deg = location->getLongitude_deg();
- _lat_deg = location->getLatitude_deg();
- _alt_ft = location->getAltitudeASL_ft();
- _roll_deg = location->getRoll_deg();
- _pitch_deg = location->getPitch_deg();
- _heading_deg = location->getHeading_deg();
- sgCopyVec3(_zero_elev_view_pos, location->get_zero_elev());
- sgCopyVec3(_relative_view_pos, location->get_view_pos());
- sgdCopyVec3(_absolute_view_pos, location->get_absolute_view_pos());
- sgCopyMat4(UP, location->getCachedUpMatrix());
- sgCopyVec3(_world_up, location->get_world_up());
- // these are the vectors that the sun and moon code like to get...
- sgCopyVec3(_surface_east, location->get_surface_east());
- sgCopyVec3(_surface_south, location->get_surface_south());
}
void
-FGViewer::recalcOurOwnLocation (double lon_deg, double lat_deg, double alt_ft,
+FGViewer::recalcOurOwnLocation (FGLocation * location, double lon_deg, double lat_deg, double alt_ft,
double roll_deg, double pitch_deg, double heading_deg)
{
// update from our own data...
- _location->setPosition( lon_deg, lat_deg, alt_ft );
- _location->setOrientation( roll_deg, pitch_deg, heading_deg );
- sgCopyMat4(LOCAL, _location->getTransformMatrix());
- sgCopyVec3(_zero_elev_view_pos, _location->get_zero_elev());
- sgCopyVec3(_relative_view_pos, _location->get_view_pos());
- sgdCopyVec3(_absolute_view_pos, _location->get_absolute_view_pos());
- // these are the vectors that the sun and moon code like to get...
- sgCopyVec3(_surface_east, _location->get_surface_east());
- sgCopyVec3(_surface_south, _location->get_surface_south());
+ location->setPosition( lon_deg, lat_deg, alt_ft );
+ location->setOrientation( roll_deg, pitch_deg, heading_deg );
+ sgCopyMat4(LOCAL, location->getTransformMatrix());
}
// recalc() is done every time one of the setters is called (making the
void
FGViewer::recalc ()
{
- sgVec3 minus_z, right, forward, tilt;
- sgMat4 tmpROT; // temp rotation work matrices
- sgVec3 eye_pos, at_pos;
- sgVec3 position_offset; // eye position offsets (xyz)
-
- // The position vectors originate from the view point or target location
- // depending on the type of view.
-
if (_type == FG_LOOKFROM) {
- // LOOKFROM mode...
- if ( _from_model ) {
- // update or data from model location
- updateFromModelLocation(_location);
- } else {
- // update from our own data...
- recalcOurOwnLocation( _lon_deg, _lat_deg, _alt_ft,
- _roll_deg, _pitch_deg, _heading_deg );
- // get world up data from just recalced location
- sgCopyMat4(UP, _location->getUpMatrix());
- sgCopyVec3(_world_up, _location->get_world_up());
- }
-
+ recalcLookFrom();
} else {
+ recalcLookAt();
+ }
- // LOOKAT mode...
- if ( _from_model ) {
- // update or data from model location
- updateFromModelLocation(_location);
- } else {
- // update from our own data, just the rotation here...
- recalcOurOwnLocation( _lon_deg, _lat_deg, _alt_ft,
- _roll_deg, _pitch_deg, _heading_deg );
- // get world up data from just recalced location
- sgCopyMat4(UP, _location->getUpMatrix());
- sgCopyVec3(_world_up, _location->get_world_up());
- }
- // save they eye positon...
- sgCopyVec3(eye_pos, _location->get_view_pos());
- // save the eye rotation before getting target values!!!
- sgCopyMat4(tmpROT, LOCAL);
-
- if ( _at_model ) {
- // update or data from model location
- updateFromModelLocation(_target_location);
- } else {
- // if not model then calculate our own target position...
- recalcOurOwnLocation( _target_lon_deg, _target_lat_deg, _target_alt_ft,
- _target_roll_deg, _target_pitch_deg, _target_heading_deg );
- }
- // restore the eye rotation (the from position rotation)
- sgCopyMat4(LOCAL, tmpROT);
+ set_clean();
+}
- }
+// recalculate for LookFrom view type...
+void
+FGViewer::recalcLookFrom ()
+{
- // the coordinates generated by the above "recalcPositionVectors"
- sgCopyVec3(_zero_elev, _zero_elev_view_pos);
- sgCopyVec3(_view_pos, _relative_view_pos);
+ sgVec3 right, forward;
+ sgVec3 eye_pos;
+ sgVec3 position_offset; // eye position offsets (xyz)
+
+ // LOOKFROM mode...
- // FIXME:
- // Doing this last recalc here for published values...where the airplane is
- // This should be per aircraft or model (for published values) before
- // multiple FDM can be done.
- // This info should come directly from the model (not through viewer),
- // because in some cases there is no model directly assigned as a lookfrom
- // position. The problem that arises is related to the FDM interface looking
- // indirectly to the viewer to find the altitude of the aircraft on the runway.
- //
- // Note that recalcPositionVectors can be removed from viewer when this
- // issue is addressed.
- //
- if (!_from_model) {
- recalcPositionVectors(fgGetDouble("/position/longitude-deg"),
- fgGetDouble("/position/latitude-deg"),
- fgGetDouble("/position/altitude-ft"));
+ // Update location data...
+ if ( _from_model ) {
+ // update or data from model location
+ updateFromModelLocation(_location);
+ } else {
+ // update from our own data...
+ recalcOurOwnLocation( _location, _lon_deg, _lat_deg, _alt_ft,
+ _roll_deg, _pitch_deg, _heading_deg );
}
+ // copy data from location class to local items...
+ copyLocationData();
+
// make sg vectors view up, right and forward vectors from LOCAL
sgSetVec3( _view_up, LOCAL[2][0], LOCAL[2][1], LOCAL[2][2] );
sgSetVec3( right, LOCAL[1][0], LOCAL[1][1], LOCAL[1][2] );
sgSetVec3( forward, -LOCAL[0][0], -LOCAL[0][1], -LOCAL[0][2] );
- if (_type == FG_LOOKAT) {
- // Note that when in "lookat" view the "world up" vector is always applied
- // to the viewer. World up is based on verticle at a given lon/lat (see
- // matrix "UP" above).
+ // Note that when in "lookfrom" view the "view up" vector is always applied
+ // to the viewer. View up is based on verticle of the aircraft itself. (see
+ // "LOCAL" matrix above)
- // Orientation Offsets matrix
- MakeVIEW_OFFSET( VIEW_OFFSET,
- (_heading_offset_deg -_heading_deg) * SG_DEGREES_TO_RADIANS, _world_up,
- _pitch_offset_deg * SG_DEGREES_TO_RADIANS, right );
-
- // add in the Orientation Offsets here
- sgSetVec3( position_offset, _x_offset_m, _y_offset_m, _z_offset_m );
- sgXformVec3( position_offset, position_offset, UP);
+ // Orientation Offsets matrix
+ MakeVIEW_OFFSET( VIEW_OFFSET,
+ _heading_offset_deg * SG_DEGREES_TO_RADIANS, _view_up,
+ _pitch_offset_deg * SG_DEGREES_TO_RADIANS, right );
- sgXformVec3( position_offset, position_offset, VIEW_OFFSET );
+ // Make the VIEW matrix.
+ sgSetVec4(VIEW[0], right[0], right[1], right[2],SG_ZERO);
+ sgSetVec4(VIEW[1], forward[0], forward[1], forward[2],SG_ZERO);
+ sgSetVec4(VIEW[2], _view_up[0], _view_up[1], _view_up[2],SG_ZERO);
+ sgSetVec4(VIEW[3], SG_ZERO, SG_ZERO, SG_ZERO,SG_ONE);
- // add the Position offsets from object to the eye position
- sgAddVec3( eye_pos, eye_pos, position_offset );
+ // rotate matrix to get a matrix to apply Eye Position Offsets
+ sgMat4 VIEW_UP; // L0 forward L1 right L2 up
+ sgCopyVec4(VIEW_UP[0], LOCAL[1]);
+ sgCopyVec4(VIEW_UP[1], LOCAL[2]);
+ sgCopyVec4(VIEW_UP[2], LOCAL[0]);
+ sgZeroVec4(VIEW_UP[3]);
- // at position (what we are looking at)
- sgCopyVec3( at_pos, _view_pos );
+ // Eye Position Offsets to vector
+ sgSetVec3( position_offset, _x_offset_m, _y_offset_m, _z_offset_m );
+ sgXformVec3( position_offset, position_offset, VIEW_UP);
- // Make the VIEW matrix for a "LOOKAT".
- sgMakeLookAtMat4( VIEW, eye_pos, at_pos, _view_up );
- }
+ // add the offsets including rotations to the translation vector
+ sgAddVec3( _view_pos, position_offset );
- if (_type == FG_LOOKFROM) {
+ // multiply the OFFSETS (for heading and pitch) into the VIEW
+ sgPostMultMat4(VIEW, VIEW_OFFSET);
- // Note that when in "lookfrom" view the "view up" vector is always applied
- // to the viewer. View up is based on verticle of the aircraft itself. (see
- // "LOCAL" matrix above)
+ // add the position data to the matrix
+ sgSetVec4(VIEW[3], _view_pos[0], _view_pos[1], _view_pos[2],SG_ONE);
- // Orientation Offsets matrix
- MakeVIEW_OFFSET( VIEW_OFFSET,
- _heading_offset_deg * SG_DEGREES_TO_RADIANS, _view_up,
- _pitch_offset_deg * SG_DEGREES_TO_RADIANS, right );
+}
- // Make the VIEW matrix.
- sgSetVec4(VIEW[0], right[0], right[1], right[2],SG_ZERO);
- sgSetVec4(VIEW[1], forward[0], forward[1], forward[2],SG_ZERO);
- sgSetVec4(VIEW[2], _view_up[0], _view_up[1], _view_up[2],SG_ZERO);
- sgSetVec4(VIEW[3], SG_ZERO, SG_ZERO, SG_ZERO,SG_ONE);
+void
+FGViewer::recalcLookAt ()
+{
- // rotate matrix to get a matrix to apply Eye Position Offsets
- sgMat4 VIEW_UP; // L0 forward L1 right L2 up
- sgCopyVec4(VIEW_UP[0], LOCAL[1]);
- sgCopyVec4(VIEW_UP[1], LOCAL[2]);
- sgCopyVec4(VIEW_UP[2], LOCAL[0]);
- sgZeroVec4(VIEW_UP[3]);
+ sgVec3 right;
+ sgVec3 eye_pos, at_pos;
+ sgVec3 position_offset; // eye position offsets (xyz)
- // Eye Position Offsets to vector
- sgSetVec3( position_offset, _x_offset_m, _y_offset_m, _z_offset_m );
- sgXformVec3( position_offset, position_offset, VIEW_UP);
+ // The position vectors originate from the view point or target location
+ // depending on the type of view.
- // add the offsets including rotations to the translation vector
- sgAddVec3( _view_pos, position_offset );
+ // LOOKAT mode...
- // multiply the OFFSETS (for heading and pitch) into the VIEW
- sgPostMultMat4(VIEW, VIEW_OFFSET);
+ // Update location data for target...
+ if ( _at_model ) {
+ // update or data from model location
+ updateFromModelLocation(_target_location);
+ } else {
+ // if not model then calculate our own target position...
+ recalcOurOwnLocation( _target_location, _target_lon_deg, _target_lat_deg, _target_alt_ft,
+ _target_roll_deg, _target_pitch_deg, _target_heading_deg );
+ }
+ // calculate the "at" target object positon relative to eye or view's tile center...
+ sgdVec3 dVec3;
+ sgdSetVec3(dVec3, _location->get_tile_center()[0], _location->get_tile_center()[1], _location->get_tile_center()[2]);
+ sgdSubVec3(dVec3, _target_location->get_absolute_view_pos(), dVec3 );
+ sgSetVec3(at_pos, dVec3[0], dVec3[1], dVec3[2]);
+
+ // Update location data for eye...
+ if ( _from_model ) {
+ // update or data from model location
+ updateFromModelLocation(_location);
+ } else {
+ // update from our own data, just the rotation here...
+ recalcOurOwnLocation( _location, _lon_deg, _lat_deg, _alt_ft,
+ _roll_deg, _pitch_deg, _heading_deg );
+ }
+ // save the eye positon...
+ sgCopyVec3(eye_pos, _location->get_view_pos());
- // add the position data to the matrix
- sgSetVec4(VIEW[3], _view_pos[0], _view_pos[1], _view_pos[2],SG_ONE);
+ // copy data from location class to local items...
+ copyLocationData();
- }
+ // make sg vectors view up, right and forward vectors from LOCAL
+ sgSetVec3( _view_up, LOCAL[2][0], LOCAL[2][1], LOCAL[2][2] );
+ sgSetVec3( right, LOCAL[1][0], LOCAL[1][1], LOCAL[1][2] );
- set_clean();
-}
+ // Note that when in "lookat" view the "world up" vector is always applied
+ // to the viewer. World up is based on verticle at a given lon/lat (see
+ // matrix "UP" above).
-void
-FGViewer::recalcPositionVectors (double lon_deg, double lat_deg, double alt_ft) const
-{
- double sea_level_radius_m;
- double lat_geoc_rad;
+ // Orientation Offsets matrix
+ MakeVIEW_OFFSET( VIEW_OFFSET,
+ (_heading_offset_deg -_heading_deg) * SG_DEGREES_TO_RADIANS, _world_up,
+ _pitch_offset_deg * SG_DEGREES_TO_RADIANS, right );
+
+ // add in the Orientation Offsets here
+ sgSetVec3( position_offset, _x_offset_m, _y_offset_m, _z_offset_m );
+ sgXformVec3( position_offset, position_offset, UP);
+
+ sgXformVec3( position_offset, position_offset, VIEW_OFFSET );
+ // add the Position offsets from object to the eye position
+ sgAddVec3( eye_pos, eye_pos, position_offset );
- // Convert from geodetic to geocentric
- // coordinates.
- sgGeodToGeoc(lat_deg * SGD_DEGREES_TO_RADIANS,
- alt_ft * SG_FEET_TO_METER,
- &sea_level_radius_m,
- &lat_geoc_rad);
+ // Make the VIEW matrix for a "LOOKAT".
+ sgMakeLookAtMat4( VIEW, eye_pos, at_pos, _view_up );
- // Calculate the cartesian coordinates
- // of point directly below at sea level.
- // aka Zero Elevation Position
- Point3D p = Point3D(lon_deg * SG_DEGREES_TO_RADIANS,
- lat_geoc_rad,
- sea_level_radius_m);
- Point3D tmp = sgPolarToCart3d(p) - scenery.get_next_center();
- sgSetVec3(_zero_elev_view_pos, tmp[0], tmp[1], tmp[2]);
+}
+
+// copy results from location class to viewer...
+// FIXME: some of these should be changed to reference directly to FGLocation...
+void
+FGViewer::copyLocationData()
+{
+ // Get our friendly vectors from the eye location...
+ sgCopyVec3(_zero_elev_view_pos, _location->get_zero_elev());
+ sgCopyVec3(_relative_view_pos, _location->get_view_pos());
+ sgdCopyVec3(_absolute_view_pos, _location->get_absolute_view_pos());
+ sgCopyMat4(UP, _location->getCachedUpMatrix());
+ sgCopyVec3(_world_up, _location->get_world_up());
+ // these are the vectors that the sun and moon code like to get...
+ sgCopyVec3(_surface_east, _location->get_surface_east());
+ sgCopyVec3(_surface_south, _location->get_surface_south());
- // Calculate the absolute view position
- // in fgfs coordinates.
- // aka Absolute View Position
- p.setz(p.radius() + alt_ft * SG_FEET_TO_METER);
- tmp = sgPolarToCart3d(p);
- sgdSetVec3(_absolute_view_pos, tmp[0], tmp[1], tmp[2]);
+ // Update viewer's postion data for the eye location...
+ _lon_deg = _location->getLongitude_deg();
+ _lat_deg = _location->getLatitude_deg();
+ _alt_ft = _location->getAltitudeASL_ft();
+ _roll_deg = _location->getRoll_deg();
+ _pitch_deg = _location->getPitch_deg();
+ _heading_deg = _location->getHeading_deg();
- // Calculate the relative view position
- // from the scenery center.
- // aka Relative View Position
- sgdVec3 scenery_center;
- sgdSetVec3(scenery_center,
- scenery.get_next_center().x(),
- scenery.get_next_center().y(),
- scenery.get_next_center().z());
- sgdVec3 view_pos;
- sgdSubVec3(view_pos, _absolute_view_pos, scenery_center);
- sgSetVec3(_relative_view_pos, view_pos);
+ // Update viewer's postion data for the target (at object) location
+ if (_type == FG_LOOKAT) {
+ _target_lon_deg = _target_location->getLongitude_deg();
+ _target_lat_deg = _target_location->getLatitude_deg();
+ _target_alt_ft = _target_location->getAltitudeASL_ft();
+ _target_roll_deg = _target_location->getRoll_deg();
+ _target_pitch_deg = _target_location->getPitch_deg();
+ _target_heading_deg = _target_location->getHeading_deg();
+ }
+ // copy coordinates to outputs for viewer...
+ sgCopyVec3(_zero_elev, _zero_elev_view_pos);
+ sgCopyVec3(_view_pos, _relative_view_pos);
}
double
default:
assert(false);
}
+ return 0.0;
}
+
+
double
FGViewer::get_v_fov()
{
default:
assert(false);
}
+ return 0.0;
}
void
-FGViewer::update (int dt)
+FGViewer::update (double dt)
{
int i;
- for ( i = 0; i < dt; i++ ) {
+ int dt_ms = int(dt * 1000);
+ for ( i = 0; i < dt_ms; i++ ) {
if ( fabs( _goal_heading_offset_deg - _heading_offset_deg) < 1 ) {
setHeadingOffset_deg( _goal_heading_offset_deg );
break;
}
}
- for ( i = 0; i < dt; i++ ) {
+ for ( i = 0; i < dt_ms; i++ ) {
if ( fabs( _goal_pitch_offset_deg - _pitch_offset_deg ) < 1 ) {
setPitchOffset_deg( _goal_pitch_offset_deg );
break;
projects / flightgear.git / blobdiff