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/*
*
* Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
*/
// -*- C++ -*-
/*
* Copyright (C) 1990,91 Silicon Graphics, Inc.
*
_______________________________________________________________________
______________ S I L I C O N G R A P H I C S I N C . ____________
|
| $Revision: 1.1.1.1 $
|
| Description:
| This file defines the SoTransform node class.
|
| Author(s) : Paul S. Strauss, Gavin Bell
|
______________ S I L I C O N G R A P H I C S I N C . ____________
_______________________________________________________________________
*/
#ifndef _SO_TRANSFORM_
#define _SO_TRANSFORM_
#include <Inventor/fields/SoSFRotation.h>
#include <Inventor/fields/SoSFVec3f.h>
#include <Inventor/nodes/SoTransformation.h>
//////////////////////////////////////////////////////////////////////////////
//
// Class: SoTransform
//
// Geometric transformation node.
//
//////////////////////////////////////////////////////////////////////////////
// C-api: prefix=SoXf
// C-api: public= translation, rotation, scaleFactor, scaleOrientation, center
class SoTransform : public SoTransformation {
SO_NODE_HEADER(SoTransform);
public:
// Fields
SoSFVec3f translation; // Translation vector
SoSFRotation rotation; // Rotation
SoSFVec3f scaleFactor; // Scale factors
SoSFRotation scaleOrientation;// Defines rotational space for scale
SoSFVec3f center; // Center point for scale and rotate
// Constructor
SoTransform();
// Sets the transform to translate the origin to the fromPoint and
// rotate the negative z-axis (0,0,-1) to lie on the vector from
// fromPoint to toPoint. This always tries to keep the "up"
// direction the positive y-axis, unless that is impossible.
// All current info in the node is wiped out.
// C-api: begin
// C-api: name=ptAt
void pointAt(const SbVec3f &fromPoint,
const SbVec3f &toPoint);
// returns composite matrices that take you from object space to each
// of scale/rotation/translation spaces
// C-api: name=getScaleSpaceMx
void getScaleSpaceMatrix(SbMatrix &mat, SbMatrix &inv) const;
// C-api: name=getRotSpaceMx
void getRotationSpaceMatrix(SbMatrix &mat,
SbMatrix &inv) const;
// C-api: name=getXlateSpaceMx
void getTranslationSpaceMatrix(SbMatrix &mat,
SbMatrix &inv) const;
// Convenience functions that combine the effects of a matrix
// transformation into the transformation stored in this node. The
// first method premultiplies the transformation and the second
// postmultiplies it.
void multLeft(const SbMatrix &mat);
void multRight(const SbMatrix &mat);
// These are the same as multLeft() and multRight(), except that
// the transformation to multiply into this node comes from
// another transformation node.
void combineLeft(SoTransformation *nodeOnLeft);
void combineRight(SoTransformation *nodeOnRight);
// Sets the fields in the node to implement the transformation
// represented by the given matrix
// C-api: name=setMx
void setMatrix(const SbMatrix &mat);
// Changes the center of the transformation to the given point
// without affecting the overall effect of the transformation
void recenter(const SbVec3f &newCenter);
SoEXTENDER public:
virtual void doAction(SoAction *action);
virtual void callback(SoCallbackAction *action);
virtual void GLRender(SoGLRenderAction *action);
virtual void getBoundingBox(SoGetBoundingBoxAction *action);
virtual void getMatrix(SoGetMatrixAction *action);
virtual void pick(SoPickAction *action);
SoINTERNAL public:
static void initClass();
protected:
virtual ~SoTransform();
};
#endif /* _SO_TRANSFORM_ */
|
