Moved to SimGear from FlightGear/src/Model/

simgear/scene/model/placement.cxx

@@ -0,0 +1,140 @@
+// placement.cxx - manage the placment of a 3D model.
+// Written by David Megginson, started 2002.
+//
+// This file is in the Public Domain, and comes with no warranty.
+
+#include <simgear/compiler.h>
+
+#include <string.h>             // for strcmp()
+
+#include <vector>
+
+#include <plib/sg.h>
+#include <plib/ssg.h>
+#include <plib/ul.h>
+
+#include <simgear/scene/model/location.hxx>
+
+#include "placement.hxx"
+
+SG_USING_STD(vector);
+
+
+
+////////////////////////////////////////////////////////////////////////
+// Implementation of FGModelPlacement.
+////////////////////////////////////////////////////////////////////////
+
+FGModelPlacement::FGModelPlacement ()
+  : _lon_deg(0),
+    _lat_deg(0),
+    _elev_ft(0),
+    _roll_deg(0),
+    _pitch_deg(0),
+    _heading_deg(0),
+    _selector(new ssgSelector),
+    _position(new ssgTransform),
+    _location(new FGLocation)
+{
+}
+
+FGModelPlacement::~FGModelPlacement ()
+{
+}
+
+void
+FGModelPlacement::init( ssgBranch * model )
+{
+  if (model != 0) {
+      _position->addKid(model);
+  }
+  _selector->addKid(_position);
+  _selector->clrTraversalMaskBits(SSGTRAV_HOT);
+}
+
+void
+FGModelPlacement::update( const Point3D scenery_center )
+{
+  _location->setPosition( _lon_deg, _lat_deg, _elev_ft );
+  _location->setOrientation( _roll_deg, _pitch_deg, _heading_deg );
+
+  sgCopyMat4( POS, _location->getTransformMatrix(scenery_center) );
+
+  sgVec3 trans;
+  sgCopyVec3(trans, _location->get_view_pos());
+
+  for(int i = 0; i < 4; i++) {
+    float tmp = POS[i][3];
+    for( int j=0; j<3; j++ ) {
+      POS[i][j] += (tmp * trans[j]);
+    }
+  }
+  _position->setTransform(POS);
+}
+
+bool
+FGModelPlacement::getVisible () const
+{
+  return (_selector->getSelect() != 0);
+}
+
+void
+FGModelPlacement::setVisible (bool visible)
+{
+  _selector->select(visible);
+}
+
+void
+FGModelPlacement::setLongitudeDeg (double lon_deg)
+{
+  _lon_deg = lon_deg;
+}
+
+void
+FGModelPlacement::setLatitudeDeg (double lat_deg)
+{
+  _lat_deg = lat_deg;
+}
+
+void
+FGModelPlacement::setElevationFt (double elev_ft)
+{
+  _elev_ft = elev_ft;
+}
+
+void
+FGModelPlacement::setPosition (double lon_deg, double lat_deg, double elev_ft)
+{
+  _lon_deg = lon_deg;
+  _lat_deg = lat_deg;
+  _elev_ft = elev_ft;
+}
+
+void
+FGModelPlacement::setRollDeg (double roll_deg)
+{
+  _roll_deg = roll_deg;
+}
+
+void
+FGModelPlacement::setPitchDeg (double pitch_deg)
+{
+  _pitch_deg = pitch_deg;
+}
+
+void
+FGModelPlacement::setHeadingDeg (double heading_deg)
+{
+  _heading_deg = heading_deg;
+}
+
+void
+FGModelPlacement::setOrientation (double roll_deg, double pitch_deg,
+                                  double heading_deg)
+{
+  _roll_deg = roll_deg;
+  _pitch_deg = pitch_deg;
+  _heading_deg = heading_deg;
+}
+
+// end of model.cxx

simgear/scene/model/placement.hxx

@@ -0,0 +1,115 @@
+// placement.hxx - manage the placment of a 3D model.
+// Written by David Megginson, started 2002.
+//
+// This file is in the Public Domain, and comes with no warranty.
+
+
+#ifndef _SG_PLACEMENT_HXX
+#define _SG_PLACEMENT_HXX 1
+
+#ifndef __cplusplus
+# error This library requires C++
+#endif
+
+#include <vector>
+
+SG_USING_STD(vector);
+
+#include <plib/sg.h>
+#include <plib/ssg.h>
+
+#include <simgear/math/point3d.hxx>
+#include <simgear/props/props.hxx>
+
+
+// Don't pull in the headers, since we don't need them here.
+class FGLocation;
+
+
+// Has anyone done anything *really* stupid, like making min and max macros?
+#ifdef min
+#undef min
+#endif
+#ifdef max
+#undef max
+#endif
+
+
+////////////////////////////////////////////////////////////////////////
+// Model placement.
+////////////////////////////////////////////////////////////////////////
+
+/**
+ * A wrapper for a model with a definite placement.
+ */
+class FGModelPlacement
+{
+public:
+
+  FGModelPlacement ();
+  virtual ~FGModelPlacement ();
+
+    virtual void FGModelPlacement::init( ssgBranch * model );
+  /* virtual void init( const string &fg_root,
+                     const string &path,
+                     SGPropertyNode *prop_root,
+                     double sim_time_sec, int dummy ); */
+  virtual void update( const Point3D scenery_center );
+
+  virtual ssgEntity * getSceneGraph () { return (ssgEntity *)_selector; }
+
+  virtual FGLocation * getFGLocation () { return _location; }
+
+  virtual bool getVisible () const;
+  virtual void setVisible (bool visible);
+
+  virtual double getLongitudeDeg () const { return _lon_deg; }
+  virtual double getLatitudeDeg () const { return _lat_deg; }
+  virtual double getElevationFt () const { return _elev_ft; }
+
+  virtual void setLongitudeDeg (double lon_deg);
+  virtual void setLatitudeDeg (double lat_deg);
+  virtual void setElevationFt (double elev_ft);
+  virtual void setPosition (double lon_deg, double lat_deg, double elev_ft);
+
+  virtual double getRollDeg () const { return _roll_deg; }
+  virtual double getPitchDeg () const { return _pitch_deg; }
+  virtual double getHeadingDeg () const { return _heading_deg; }
+
+  virtual void setRollDeg (double roll_deg);
+  virtual void setPitchDeg (double pitch_deg);
+  virtual void setHeadingDeg (double heading_deg);
+  virtual void setOrientation (double roll_deg, double pitch_deg,
+                               double heading_deg);
+  
+  // Addition by Diarmuid Tyson for Multiplayer Support
+  // Allows multiplayer to get players position transform
+  virtual const sgVec4 *get_POS() { return POS; }
+
+private:
+
+                                // Geodetic position
+  double _lon_deg;
+  double _lat_deg;
+  double _elev_ft;
+
+                                // Orientation
+  double _roll_deg;
+  double _pitch_deg;
+  double _heading_deg;
+
+  ssgSelector * _selector;
+  ssgTransform * _position;
+
+                                // Location
+  FGLocation * _location;
+
+
+  // Addition by Diarmuid Tyson for Multiplayer Support
+  // Moved from update method
+  // POS for transformation Matrix
+  sgMat4 POS;
+
+};
+
+#endif // _SG_PLACEMENT_HXX