# SoVRMLSphereSensor.h

    00001 /**************************************************************************\
    00002  *
    00003  *  This file is part of the Coin 3D visualization library.
    00004  *  Copyright (C) 1998-2003 by Systems in Motion.  All rights reserved.
    00005  *
    00006  *  This library is free software; you can redistribute it and/or
    00007  *  modify it under the terms of the GNU General Public License
    00008  *  ("GPL") version 2 as published by the Free Software Foundation.
    00009  *  See the file LICENSE.GPL at the root directory of this source
    00010  *  distribution for additional information about the GNU GPL.
    00011  *
    00012  *  For using Coin with software that can not be combined with the GNU
    00013  *  GPL, and for taking advantage of the additional benefits of our
    00014  *  support services, please contact Systems in Motion about acquiring
    00015  *  a Coin Professional Edition License.
    00016  *
    00017  *  See <URL:http://www.coin3d.org> for  more information.
    00018  *
    00019  *  Systems in Motion, Teknobyen, Abels Gate 5, 7030 Trondheim, NORWAY.
    00020  *  <URL:http://www.sim.no>.
    00021  *
    00022 \**************************************************************************/
    00023
    00024 #ifndef COIN_SOVRMLSPHERESENSOR_H
    00025 #define COIN_SOVRMLSPHERESENSOR_H
    00026
    00027 #include <Inventor/nodes/SoSubNode.h>
    00028 #include <Inventor/VRMLnodes/SoVRMLDragSensor.h>
    00029 #include <Inventor/fields/SoSFRotation.h>
    00030 #include <Inventor/fields/SoSFVec3f.h>
    00031
    00032 class SbSphereProjector;
    00033
    00034 class COIN_DLL_API SoVRMLSphereSensor : public SoVRMLDragSensor
    00035 {
    00036   typedef SoVRMLDragSensor inherited;
    00037   SO_NODE_HEADER(SoVRMLSphereSensor);
    00038
    00039 public:
    00040   static void initClass(void);
    00041   SoVRMLSphereSensor(void);
    00042
    00043   SoSFRotation offset;
    00044   SoSFRotation rotation_changed;
    00045
    00046 protected:
    00047
    00048   virtual SbBool dragStart(void);
    00049   virtual void drag(void);
    00050   virtual void dragFinish(void);
    00051
    00052   virtual ~SoVRMLSphereSensor();
    00053
    00054 private:
    00055
    00056   SbSphereProjector * sphereproj;
    00057   SbVec3f prevworldhitpt;
    00058   SbRotation prevrotation;
    00059 };
    00060
    00061 #endif // ! COIN_SOVRMLSPHERESENSOR_H