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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 SoPointSet node class.
|
| Author(s) : Paul S. Strauss
|
______________ S I L I C O N G R A P H I C S I N C . ____________
_______________________________________________________________________
*/
#ifndef _SO_POINT_SET_
#define _SO_POINT_SET_
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/nodes/SoNonIndexedShape.h>
//////////////////////////////////////////////////////////////////////////////
//
// Class: SoPointSet
//
// Set of points, using the current coordinates. The startIndex field
// gives the starting coordinate index for the first point. The number of
// points to draw is determined by the numPoints field.
//
//////////////////////////////////////////////////////////////////////////////
// This value, when used in the numPoints field, means use the rest of
// the coordinates as points
#define SO_POINT_SET_USE_REST_OF_POINTS (-1)
// C-api: prefix=SoPtSet
// C-api: public=startIndex, numPoints, vertexProperty
class SoPointSet : public SoNonIndexedShape {
SO_NODE_HEADER(SoPointSet);
public:
// Fields
SoSFInt32 numPoints; // Number of points to draw
// Constructor
SoPointSet();
SoEXTENDER public:
// Implements actions
virtual void GLRender(SoGLRenderAction *action);
// Redefine this to tell open caches that they contain points
virtual void getBoundingBox(SoGetBoundingBoxAction *action);
SoINTERNAL public:
static void initClass();
protected:
// Generates points representing point set
virtual void generatePrimitives(SoAction *action);
// Computes bounding box of point set
virtual void computeBBox(SoAction *action, SbBox3f &box,
SbVec3f ¢er);
// Overrides standard method to create an SoPointDetail instance
virtual SoDetail * createPointDetail(SoRayPickAction *action,
const SoPrimitiveVertex *v,
SoPickedPoint *pp);
protected:
virtual ~SoPointSet();
private:
// Returns TRUE if materials/normals are bound to individual points
SbBool areMaterialsPerPoint(SoAction *action) const;
SbBool areNormalsPerPoint(SoAction *action) const;
};
#endif /* _SO_POINT_SET_ */
|
