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Initial check-in based on OpenGL Performer 2.4 tree.
-flynnt

/*
 * Copyright 1995, Silicon Graphics, Inc.
 * ALL RIGHTS RESERVED
 *
 * This source code ("Source Code") was originally derived from a
 * code base owned by Silicon Graphics, Inc. ("SGI")
 * 
 * LICENSE: SGI grants the user ("Licensee") permission to reproduce,
 * distribute, and create derivative works from this Source Code,
 * provided that: (1) the user reproduces this entire notice within
 * both source and binary format redistributions and any accompanying
 * materials such as documentation in printed or electronic format;
 * (2) the Source Code is not to be used, or ported or modified for
 * use, except in conjunction with OpenGL Performer; and (3) the
 * names of Silicon Graphics, Inc.  and SGI may not be used in any
 * advertising or publicity relating to the Source Code without the
 * prior written permission of SGI.  No further license or permission
 * may be inferred or deemed or construed to exist with regard to the
 * Source Code or the code base of which it forms a part. All rights
 * not expressly granted are reserved.
 * 
 * This Source Code is provided to Licensee AS IS, without any
 * warranty of any kind, either express, implied, or statutory,
 * including, but not limited to, any warranty that the Source Code
 * will conform to specifications, any implied warranties of
 * merchantability, fitness for a particular purpose, and freedom
 * from infringement, and any warranty that the documentation will
 * conform to the program, or any warranty that the Source Code will
 * be error free.
 * 
 * IN NO EVENT WILL SGI BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT
 * LIMITED TO DIRECT, INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES,
 * ARISING OUT OF, RESULTING FROM, OR IN ANY WAY CONNECTED WITH THE
 * SOURCE CODE, WHETHER OR NOT BASED UPON WARRANTY, CONTRACT, TORT OR
 * OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
 * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM,
 * OR AROSE OUT OF USE OR RESULTS FROM USE OF, OR LACK OF ABILITY TO
 * USE, THE SOURCE CODE.
 * 
 * Contact information:  Silicon Graphics, Inc., 
 * 1600 Amphitheatre Pkwy, Mountain View, CA  94043, 
 * or:  http://www.sgi.com
 */

// Rotor.h:   Subclass of DCS for emulating Inventor SoRotor
//
// $Revision: 1.1 $
// $Date: 2000/11/21 21:39:33 $
//

#include <Performer/pf/pfDCS.h>

class Rotor : public pfDCS
{
public:
    Rotor();
    ~Rotor();

public:
    void on() { enable = TRUE; }
    void off() { enable = FALSE; }

    int isOn() { return enable; }

    void	setFreq(float _freq) { frequency = _freq; }
    float	getFreq() { return frequency; }

    void	setAxis(float x, float y, float z) { 
	axis[0] = x; axis[1] = y; axis[2] = z; 
    }
    void	getAxis(float *x, float *y, float *z) {  
	*x = axis[0]; *y = axis[1]; *z = axis[2];
    }

    void	setAngle(float _angle) { 
	prevAngle = _angle;
    }
    float	getAngle() { return prevAngle; }

public:
    virtual int 	    app(pfTraverser *trav);
    virtual int		    needsApp() { return TRUE; }

public:
    // per class functions;
    static void	   init();
    static pfType* getClassType() { return classType; }

protected:
    int		enable;
    float	frequency;
    pfVec3	axis;
    float	prevAngle;
    double	prevTime;

private:
    static pfType *classType;
};