Stuart Buchanan:

[flightgear.git] / src / Main / viewer.cxx

diff --git a/src/Main/viewer.cxx b/src/Main/viewer.cxx
index 4affbfe409ce189814b69425a7da88d91d93ae5d..5c62846c4c1e2b019d39944f8e44e60bc4518eaf 100644 (file)
--- a/src/Main/viewer.cxx
+++ b/src/Main/viewer.cxx
@@ -531,26 +531,16 @@ FGViewer::getRelativeViewPos ()
   return _relative_view_pos;
 }
 
-float *
-FGViewer::getZeroElevViewPos () 
-{
-  if (_dirty)
-    recalc();
-  return _zero_elev_view_pos;
-}
-
 void
 FGViewer::updateFromModelLocation (SGLocation * location)
 {
-  Point3D center = globals->get_scenery()->get_next_center();
-  sgCopyMat4(LOCAL, location->getTransformMatrix(center));
+  sgCopyMat4(LOCAL, location->getTransformMatrix());
 }
 
 void
 FGViewer::updateAtModelLocation (SGLocation * location)
 {
-  Point3D center = globals->get_scenery()->get_next_center();
-  sgCopyMat4(ATLOCAL, location->getTransformMatrix(center));
+  sgCopyMat4(ATLOCAL, location->getTransformMatrix());
 }
 
 void
@@ -561,20 +551,7 @@ FGViewer::recalcOurOwnLocation (SGLocation * location, double lon_deg, double la
   dampEyeData(roll_deg, pitch_deg, heading_deg);
   location->setPosition( lon_deg, lat_deg, alt_ft );
   location->setOrientation( roll_deg, pitch_deg, heading_deg );
-  Point3D center = globals->get_scenery()->get_next_center();
-  sgCopyMat4(LOCAL, location->getTransformMatrix(center));
-}
-
-void
-FGViewer::set_scenery_center(const Point3D& center)
-{
-  _location->set_tile_center(center);
-  _location->getTransformMatrix(center);
-  if (_type == FG_LOOKAT) {
-    _target_location->set_tile_center(center);
-    _target_location->getTransformMatrix(center);
-  }
-  set_dirty();
+  sgCopyMat4(LOCAL, location->getTransformMatrix());
 }
 
 // recalc() is done every time one of the setters is called (making the 
@@ -686,9 +663,7 @@ FGViewer::recalcLookAt ()
   Point3D center = globals->get_scenery()->get_next_center();
   sgdVec3 dVec3;
   sgdSetVec3(dVec3, center[0], center[1], center[2]);
-  sgdSubVec3(dVec3,
-             _target_location->get_absolute_view_pos(center),
-             dVec3 );
+  sgdSubVec3(dVec3, _target_location->get_absolute_view_pos(), dVec3 );
   sgSetVec3(at_pos, dVec3[0], dVec3[1], dVec3[2]);
 
   // Update location data for eye...
@@ -701,7 +676,7 @@ FGViewer::recalcLookAt ()
           _roll_deg, _pitch_deg, _heading_deg );
   }
   // save the eye positon...
-  sgCopyVec3(eye_pos,  _location->get_view_pos());
+  sgCopyVec3(eye_pos,  _location->get_view_pos(center));
 
   // copy data from location class to local items...
   copyLocationData();
@@ -752,11 +727,10 @@ FGViewer::recalcLookAt ()
 void
 FGViewer::copyLocationData()
 {
+  Point3D center = globals->get_scenery()->get_center();
   // Get our friendly vectors from the eye location...
-  sgdCopyVec3(_absolute_view_pos,
-              _location->get_absolute_view_pos(globals->get_scenery()->get_next_center()));
-  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());
+  sgCopyVec3(_relative_view_pos, _location->get_view_pos(center));
   sgCopyMat4(UP, _location->getCachedUpMatrix());
   sgCopyVec3(_world_up, _location->get_world_up());
   // these are the vectors that the sun and moon code like to get...
@@ -782,7 +756,8 @@ FGViewer::copyLocationData()
   }
 
   // copy coordinates to outputs for viewer...
-  sgCopyVec3(_zero_elev, _zero_elev_view_pos);
+  sgCopyVec3(_zero_elev, _relative_view_pos);
+  sgAddScaledVec3(_zero_elev, _world_up, -_alt_ft*SG_FEET_TO_METER);
   sgCopyVec3(_view_pos, _relative_view_pos);
 }