Point
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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* 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
* OpenSceneGraph Public License for more details.
*/
#ifndef OSG_POINT
#define OSG_POINT 1
#include <osg/Vec3>
#include <osg/StateAttribute>
#ifndef GL_POINT_SMOOTH
#define GL_POINT_SMOOTH 0x0B10
#endif
#ifndef GL_POINT_SMOOTH_HINT
#define GL_POINT_SMOOTH_HINT 0x0C51
#endif
namespace osg {
class OSG_EXPORT Point : public StateAttribute
{
public :
Point();
Point(float size);
Point(const Point& point,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
StateAttribute(point,copyop),
_size(point._size),
_fadeThresholdSize(point._fadeThresholdSize),
_distanceAttenuation(point._distanceAttenuation),
_minSize(point._minSize),
_maxSize(point._maxSize) {}
META_StateAttribute(osg, Point, POINT);
virtual int compare(const StateAttribute& sa) const
{
// check the types are equal and then create the rhs variable
// used by the COMPARE_StateAttribute_Parameter macros below.
COMPARE_StateAttribute_Types(Point,sa)
// compare each parameter in turn against the rhs.
COMPARE_StateAttribute_Parameter(_size)
COMPARE_StateAttribute_Parameter(_fadeThresholdSize)
COMPARE_StateAttribute_Parameter(_distanceAttenuation)
COMPARE_StateAttribute_Parameter(_minSize)
COMPARE_StateAttribute_Parameter(_maxSize)
return 0; // passed all the above comparison macros, must be equal.
}
virtual bool getModeUsage(StateAttribute::ModeUsage& usage) const
{
usage.usesMode(GL_POINT_SMOOTH);
return true;
}
void setSize(float size);
inline float getSize() const { return _size; }
void setFadeThresholdSize(float fadeThresholdSize);
inline float getFadeThresholdSize() const { return _fadeThresholdSize; }
void setDistanceAttenuation(const Vec3& distanceAttenuation);
inline const Vec3& getDistanceAttenuation() const { return _distanceAttenuation; }
void setMinSize(float minSize);
inline float getMinSize() const {return _minSize;}
void setMaxSize(float maxSize);
inline float getMaxSize() const {return _maxSize;}
virtual void apply(State& state) const;
protected :
virtual ~Point();
float _size;
float _fadeThresholdSize;
Vec3 _distanceAttenuation;
float _minSize;
float _maxSize;
};
}
#endif
GL_POINT_SMOOTH
#define GL_POINT_SMOOTH
Definition Point:21
StateAttribute
COMPARE_StateAttribute_Parameter
#define COMPARE_StateAttribute_Parameter(parameter)
Definition StateAttribute:69
COMPARE_StateAttribute_Types
#define COMPARE_StateAttribute_Types(TYPE, rhs_attribute)
Definition StateAttribute:57
Vec3
osg::CopyOp
Definition CopyOp:41
osg::CopyOp::SHALLOW_COPY
@ SHALLOW_COPY
Definition CopyOp:47
osg::Point::getSize
float getSize() const
Definition Point:74
osg::Point::Point
Point(const Point &point, const CopyOp &copyop=CopyOp::SHALLOW_COPY)
Definition Point:40
osg::Point::setMaxSize
void setMaxSize(float maxSize)
osg::Point::_size
float _size
Definition Point:94
osg::Point::Point
Point(float size)
osg::Point::getModeUsage
virtual bool getModeUsage(StateAttribute::ModeUsage &usage) const
Definition Point:67
osg::Point::getMinSize
float getMinSize() const
Definition Point:83
osg::Point::_minSize
float _minSize
Definition Point:97
osg::Point::_fadeThresholdSize
float _fadeThresholdSize
Definition Point:95
osg::Point::_distanceAttenuation
Vec3 _distanceAttenuation
Definition Point:96
osg::Point::setFadeThresholdSize
void setFadeThresholdSize(float fadeThresholdSize)
osg::Point::getDistanceAttenuation
const Vec3 & getDistanceAttenuation() const
Definition Point:80
osg::Point::Point
Point()
osg::Point::_maxSize
float _maxSize
Definition Point:98
osg::Point::setMinSize
void setMinSize(float minSize)
osg::Point::META_StateAttribute
META_StateAttribute(osg, Point, POINT)
osg::Point::setDistanceAttenuation
void setDistanceAttenuation(const Vec3 &distanceAttenuation)
osg::Point::getMaxSize
float getMaxSize() const
Definition Point:86
osg::Point::getFadeThresholdSize
float getFadeThresholdSize() const
Definition Point:77
osg::Point::apply
virtual void apply(State &state) const
osg::Point::setSize
void setSize(float size)
osg::Point::~Point
virtual ~Point()
osg::Point::compare
virtual int compare(const StateAttribute &sa) const
Definition Point:51
osg::StateAttribute::StateAttribute
StateAttribute()
osg::StateAttribute::POINT
@ POINT
Definition StateAttribute:139
osg::State
Definition State:80
osg
Definition AlphaFunc:19
osg::Vec3
Vec3f Vec3
Definition Vec3:21
OSG_EXPORT
#define OSG_EXPORT
Definition osg/Export:39
osg::StateAttribute::ModeUsage
Definition StateAttribute:308
osg::StateAttribute::ModeUsage::usesMode
virtual void usesMode(GLMode mode)=0