gfx/VisualPath

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/****************************************************************************
  Copyright (C)2002 David Jung <opensim@pobox.com>

  This program/file 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. (http://www.gnu.org)
  
  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  
  $Id: VisualPath 1030 2004-02-11 20:46:17Z jungd $
  $Revision: 1.2 $
  $Date: 2004-02-11 15:46:17 -0500 (Wed, 11 Feb 2004) $
  $Author: jungd $
 
****************************************************************************/

#ifndef _GFX_VISUALPATH_
#define _GFX_VISUALPATH_

#include <gfx/gfx>

#include <base/Path>
#include <gfx/Visual>

#include <osg/Node>


namespace gfx {


class VisualPath : public base::Path, public Visual
{
public:
  /// default path - all points are 0
  VisualPath()
    : Path() {}

  VisualPath(const Path& p)
    : Path(p) {}

  /// simple line segment start[position|orientation] - end[position|orientation]
  VisualPath(const base::Point3& sp, const base::Orient& so, const base::Point3& ep, const base::Orient& eo)
    : Path(sp,so,ep,eo) {}

  /// a set of 'waypoints' - actually points and their corresponding orientations
  VisualPath(const array<base::Point3>& points, const array<base::Orient>& orients = array<base::Orient>())
    : Path(points, orients) {}

  /// a set of 'waypoints'.  If vector dim is 3, specifies position only; dim 6, specifies
  ///  position and orientation using the EulerRPY (roll, pitch, yaw) convention; dim 7
  ///  specifies position and orientation as a quaternion qx,qy,qz,qw.
  VisualPath(const array<base::Vector>& points)
    : Path(points) {}

  /// arbitrary path defined by symbolic expressions for x,y,z,qx,qy,qz,qw in terms of s
  VisualPath(const base::ExpressionVector& p)
    : Path(p) {}

  virtual String className() const { return String("VisualPath"); }

  
  virtual bool visualTypeSupported(VisualType type) const { return OSGVisual; }

  virtual osg::Node* createOSGVisual(Attributes visualAttributes=0) const;

private:
  mutable Visual::Attributes attributes;
  mutable ref_ptr<osg::Node> node;

};


} // gfx

#endif

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