osg::LineIterator Class Reference
[Geometry Iterators]

Geometry Iterator for triangles. See Geometry Iterators for a description. More...

#include <OSGLineIterator.h>

Inheritance diagram for osg::LineIterator:

List of all members.

Public Member Functions
Constructors
	LineIterator (void)
	LineIterator (const LineIterator &source)
	LineIterator (const GeometryPtr &geo)
	LineIterator (const NodePtr &geo)
Destructors
virtual	~LineIterator (void)
Get
Int32	getIndex (void) const
Int32	getPositionIndex (Int32 which) const
Pnt3f	getPosition (Int32 which) const
Int32	getNormalIndex (Int32 which) const
Vec3f	getNormal (Int32 which) const
Int32	getColorIndex (Int32 which) const
Color3f	getColor (Int32 which) const
Int32	getSecondaryColorIndex (Int32 which) const
Color3f	getSecondaryColor (Int32 which) const
Int32	getTexCoordsIndex (Int32 which) const
Vec2f	getTexCoords (Int32 which) const
Int32	getTexCoordsIndex1 (Int32 which) const
Vec2f	getTexCoords1 (Int32 which) const
Int32	getTexCoordsIndex2 (Int32 which) const
Vec2f	getTexCoords2 (Int32 which) const
Int32	getTexCoordsIndex3 (Int32 which) const
Vec2f	getTexCoords3 (Int32 which) const
Int32	getTexCoordsIndex4 (Int32 which) const
Vec2f	getTexCoords4 (Int32 which) const
Int32	getTexCoordsIndex5 (Int32 which) const
Vec2f	getTexCoords5 (Int32 which) const
Int32	getTexCoordsIndex6 (Int32 which) const
Vec2f	getTexCoords6 (Int32 which) const
Int32	getTexCoordsIndex7 (Int32 which) const
Vec2f	getTexCoords7 (Int32 which) const
Int32	getIndexIndex (Int32 which) const
Operators
void	operator++ (void)
void	seek (Int32 index)
LineIterator &	operator= (const LineIterator &source)
bool	operator< (const LineIterator &other) const
bool	operator== (const LineIterator &other) const
bool	operator!= (const LineIterator &other) const
Set
void	setGeo (const GeometryPtr &geo)
void	setGeo (const NodePtr &geo)
Get
bool	isAtEnd (void) const
UInt32	getLength (void) const
UInt32	getType (void) const
GeometryPtr	getGeometry (void) const
Operators
bool	operator< (const PrimitiveIterator &other) const
bool	operator== (const PrimitiveIterator &other) const
bool	operator!= (const PrimitiveIterator &other) const
Static Public Member Functions
Class Get
static const char *	getClassname (void)
Protected Types
typedef PrimitiveIterator	Inherited
Protected Member Functions
Set
void	setToBegin (void)
void	setToEnd (void)
Private Member Functions
void	startPrim (void)
Private Attributes
Fields
Int32	_lineIndex
UInt32	_actPrimIndex
Int32	_linePntIndex [2]
Static Private Attributes
static char	cvsid [] = "@(#)$Id: OSGLineIterator.cpp,v 1.1 2005/01/14 11:24:22 a-m-z Exp $"
Friends
class	Geometry

---

Detailed Description

The LineIterator iterates through the geometry one line at a time. See Line Iterator for details.

See also:

PrimitiveIterator FaceIterator

Definition at line 58 of file OSGLineIterator.h.

---

Member Typedef Documentation

typedef PrimitiveIterator osg::LineIterator::Inherited [protected]

Definition at line 142 of file OSGLineIterator.h.

---

Constructor & Destructor Documentation

LineIterator::LineIterator

(

void

)

Definition at line 103 of file OSGLineIterator.cpp.

                               : PrimitiveIterator(),
    _lineIndex(0), _actPrimIndex(0), _linePntIndex()
{
}

LineIterator::LineIterator

(

const LineIterator &

source

)

Definition at line 108 of file OSGLineIterator.cpp.

References _linePntIndex.

                                                     : 
    PrimitiveIterator(source),
    _lineIndex(source._lineIndex), _actPrimIndex(source._actPrimIndex),
    _linePntIndex()
{
    _linePntIndex[0] = source._linePntIndex[0];
    _linePntIndex[1] = source._linePntIndex[1];
}

LineIterator::LineIterator

(

const GeometryPtr &

geo

)

This constructor creates an iterator for the given geometry. It is useful to create an iterator to be used to seek() to a specific indexed face. Otherwise, use osg::Geometry::beginTriangles() resp. osg::Geometry::endTriangles() to create an iterator.

Definition at line 123 of file OSGLineIterator.cpp.

References osg::PrimitiveIterator::setGeo().

                                                 :
    PrimitiveIterator(),
    _lineIndex(0), _actPrimIndex(0), _linePntIndex()
{
    setGeo(geo);
}

LineIterator::LineIterator

(

const NodePtr &

geo

)

This constructor creates an iterator for the given node. It is useful to create an iterator to be used to seek() to a specific indexed face. Otherwise, use osg::Geometry::beginTriangles() resp. osg::Geometry::endTriangles() to create an iterator.

Definition at line 137 of file OSGLineIterator.cpp.

References osg::PrimitiveIterator::setGeo().

                                             : 
    PrimitiveIterator(),
    _lineIndex(0), _actPrimIndex(0), _linePntIndex()
{
    setGeo(geo);
}

LineIterator::~LineIterator

(

void

)

[virtual]

Definition at line 145 of file OSGLineIterator.cpp.

{
}

---

Member Function Documentation

static const char* osg::LineIterator::getClassname

(

void

)

[inline, static]

Reimplemented from osg::PrimitiveIterator.

Definition at line 67 of file OSGLineIterator.h.

{ return "LineIterator"; }

Int32 osg::LineIterator::getIndex

(

void

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 54 of file OSGLineIterator.inl.

References _lineIndex.

Referenced by seek().

{
    return _lineIndex;
}

Int32 osg::LineIterator::getPositionIndex

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 60 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getPositionIndex().

Referenced by getPosition().

{
    return Inherited::getPositionIndex(_linePntIndex[which]);
}

Pnt3f osg::LineIterator::getPosition

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 66 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), and getPositionIndex().

{
    Int32 ind = getPositionIndex(which);
    
    return getGeometry()->getPositions()->getValue(ind);
}

Int32 osg::LineIterator::getNormalIndex

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 74 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getNormalIndex().

Referenced by getNormal().

{
    return Inherited::getNormalIndex(_linePntIndex[which]);
}

Vec3f osg::LineIterator::getNormal

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 80 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), getNormalIndex(), and osg::VectorInterface< ValueTypeT, StorageInterfaceT >::Null.

{   
    Int32 ind = getNormalIndex(which);
    
    if(ind < 0)
        return Vec3f::Null;
        
    return getGeometry()->getNormals()->getValue(ind);
}

Int32 osg::LineIterator::getColorIndex

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 91 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getColorIndex().

Referenced by getColor().

{
    return Inherited::getColorIndex(_linePntIndex[which]);
}

Color3f osg::LineIterator::getColor

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 97 of file OSGLineIterator.inl.

References getColorIndex(), osg::PrimitiveIterator::getGeometry(), and osg::Color3< ValueTypeT >::Null.

{   
    Int32 ind = getColorIndex(which);
    
    if(ind < 0)
        return Color3f::Null;
        
    return getGeometry()->getColors()->getValue(ind);
}

Int32 osg::LineIterator::getSecondaryColorIndex

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 108 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getSecondaryColorIndex().

Referenced by getSecondaryColor().

{
    return Inherited::getSecondaryColorIndex(_linePntIndex[which]);
}

Color3f osg::LineIterator::getSecondaryColor

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 114 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), getSecondaryColorIndex(), and osg::Color3< ValueTypeT >::Null.

{   
    Int32 ind = getSecondaryColorIndex(which);
    
    if(ind < 0)
        return Color3f::Null;
        
    return getGeometry()->getSecondaryColors()->getValue(ind);
}

Int32 osg::LineIterator::getTexCoordsIndex

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 126 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getTexCoordsIndex().

Referenced by getTexCoords().

{
    return Inherited::getTexCoordsIndex(_linePntIndex[which]);
}

Vec2f osg::LineIterator::getTexCoords

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 132 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), getTexCoordsIndex(), and osg::VectorInterface< ValueTypeT, StorageInterfaceT >::Null.

{   
    Int32 ind = getTexCoordsIndex(which);
    
    if(ind < 0)
        return Vec2f::Null;
        
    return getGeometry()->getTexCoords()->getValue(ind);
}

Int32 osg::LineIterator::getTexCoordsIndex1

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 144 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getTexCoordsIndex1().

Referenced by getTexCoords1().

{
    return Inherited::getTexCoordsIndex1(_linePntIndex[which]);
}

Vec2f osg::LineIterator::getTexCoords1

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 150 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), getTexCoordsIndex1(), and osg::VectorInterface< ValueTypeT, StorageInterfaceT >::Null.

{   
    Int32 ind = getTexCoordsIndex1(which);
    
    if(ind < 0)
        return Vec2f::Null;
        
    return getGeometry()->getTexCoords1()->getValue(ind);
}

Int32 osg::LineIterator::getTexCoordsIndex2

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 162 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getTexCoordsIndex2().

Referenced by getTexCoords2().

{
    return Inherited::getTexCoordsIndex2(_linePntIndex[which]);
}

Vec2f osg::LineIterator::getTexCoords2

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 168 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), getTexCoordsIndex2(), and osg::VectorInterface< ValueTypeT, StorageInterfaceT >::Null.

{   
    Int32 ind = getTexCoordsIndex2(which);
    
    if(ind < 0)
        return Vec2f::Null;
        
    return getGeometry()->getTexCoords2()->getValue(ind);
}

Int32 osg::LineIterator::getTexCoordsIndex3

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 180 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getTexCoordsIndex3().

Referenced by getTexCoords3().

{
    return Inherited::getTexCoordsIndex3(_linePntIndex[which]);
}

Vec2f osg::LineIterator::getTexCoords3

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 186 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), getTexCoordsIndex3(), and osg::VectorInterface< ValueTypeT, StorageInterfaceT >::Null.

{   
    Int32 ind = getTexCoordsIndex3(which);
    
    if(ind < 0)
        return Vec2f::Null;
        
    return getGeometry()->getTexCoords3()->getValue(ind);
}

Int32 osg::LineIterator::getTexCoordsIndex4

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 197 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getTexCoordsIndex4().

Referenced by getTexCoords4().

{
    return Inherited::getTexCoordsIndex4(_linePntIndex[which]);
}

Vec2f osg::LineIterator::getTexCoords4

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 203 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), getTexCoordsIndex4(), and osg::VectorInterface< ValueTypeT, StorageInterfaceT >::Null.

{   
    Int32 ind = getTexCoordsIndex4(which);
    
    if(ind < 0)
        return Vec2f::Null;
        
    return getGeometry()->getTexCoords4()->getValue(ind);
}

Int32 osg::LineIterator::getTexCoordsIndex5

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 214 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getTexCoordsIndex5().

Referenced by getTexCoords5().

{
    return Inherited::getTexCoordsIndex5(_linePntIndex[which]);
}

Vec2f osg::LineIterator::getTexCoords5

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 220 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), getTexCoordsIndex5(), and osg::VectorInterface< ValueTypeT, StorageInterfaceT >::Null.

{   
    Int32 ind = getTexCoordsIndex5(which);
    
    if(ind < 0)
        return Vec2f::Null;
        
    return getGeometry()->getTexCoords5()->getValue(ind);
}

Int32 osg::LineIterator::getTexCoordsIndex6

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 231 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getTexCoordsIndex6().

Referenced by getTexCoords6().

{
    return Inherited::getTexCoordsIndex6(_linePntIndex[which]);
}

Vec2f osg::LineIterator::getTexCoords6

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 237 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), getTexCoordsIndex6(), and osg::VectorInterface< ValueTypeT, StorageInterfaceT >::Null.

{   
    Int32 ind = getTexCoordsIndex6(which);
    
    if(ind < 0)
        return Vec2f::Null;
        
    return getGeometry()->getTexCoords6()->getValue(ind);
}

Int32 osg::LineIterator::getTexCoordsIndex7

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 248 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getTexCoordsIndex7().

Referenced by getTexCoords7().

{
    return Inherited::getTexCoordsIndex7(_linePntIndex[which]);
}

Vec2f osg::LineIterator::getTexCoords7

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 254 of file OSGLineIterator.inl.

References osg::PrimitiveIterator::getGeometry(), getTexCoordsIndex7(), and osg::VectorInterface< ValueTypeT, StorageInterfaceT >::Null.

{   
    Int32 ind = getTexCoordsIndex7(which);
    
    if(ind < 0)
        return Vec2f::Null;
        
    return getGeometry()->getTexCoords7()->getValue(ind);
}

Int32 osg::LineIterator::getIndexIndex

(

Int32

which

)

const [inline]

Return the index of the current face. The index runs from 0 to the number of triangles in the geometry. Its main use is as an input to osg::LineIterator::seek.

Reimplemented from osg::PrimitiveIterator.

Definition at line 265 of file OSGLineIterator.inl.

References _linePntIndex, and osg::PrimitiveIterator::getIndexIndex().

{
    if(_linePntIndex[which] >= 0)
        return Inherited::getIndexIndex(_linePntIndex[which]);
    else 
        return -1;
}

void LineIterator::operator++

(

void

)

The increment operator steps the iterator to the next triangle. If it is already beyond the last triangle it does not change.

Reimplemented from osg::PrimitiveIterator.

Definition at line 154 of file OSGLineIterator.cpp.

References _actPrimIndex, _lineIndex, _linePntIndex, osg::PrimitiveIterator::getLength(), osg::PrimitiveIterator::getType(), osg::PrimitiveIterator::isAtEnd(), startPrim(), and SWARNING.

{
    // already at end?
    if(isAtEnd())
        return;
    
    ++_lineIndex;

    // at end of primitive?
    if((_actPrimIndex >  getLength())                           ||
       (_actPrimIndex == getLength() && getType() != GL_LINE_LOOP))
    {
        ++(static_cast<PrimitiveIterator&>(*this));      
        startPrim();
        
        return;
    }


    switch(getType())
    {
    case GL_LINES:          _linePntIndex[0] = _actPrimIndex++;
                            _linePntIndex[1] = _actPrimIndex++;
                            break;                           
    case GL_LINE_STRIP:     _linePntIndex[0] = _linePntIndex[1];
                            _linePntIndex[1] = _actPrimIndex++;
                            break;
    case GL_LINE_LOOP:      _linePntIndex[0] = _linePntIndex[1];
                            if(_actPrimIndex < getLength())
                            {
                                _linePntIndex[1] = _actPrimIndex++;
                            }
                            else
                            {
                                _linePntIndex[1] = 0;
                                _actPrimIndex++;    
                            }
                            break;
    default:                SWARNING << "LineIterator::++: encountered " 
                                      << "unknown primitive type " 
                                      << getType()
                                      << ", ignoring!" << std::endl;
                            startPrim();
                            break;
    }           
}

void LineIterator::seek

(

Int32

index

)

Seek the iterator to a specific triangle indicated by its index.

This is primarily used in conjunction with osg::LineIterator::getIndex to record a position in the iteration and later return to it.

Reimplemented from osg::PrimitiveIterator.

Definition at line 253 of file OSGLineIterator.cpp.

References getIndex(), and setToBegin().

{
    setToBegin();
    
    while(getIndex() != index)
        ++(*this);
}

LineIterator & LineIterator::operator=

(

const LineIterator &

source

)

The increment operator steps the iterator to the next triangle. If it is already beyond the last triangle it does not change.

Definition at line 285 of file OSGLineIterator.cpp.

References _actPrimIndex, _lineIndex, and _linePntIndex.

{
    if(this == &source)
        return *this;

    *static_cast<Inherited *>(this) = source;
    
    this->_lineIndex        = source._lineIndex;
    this->_actPrimIndex     = source._actPrimIndex;
    this->_linePntIndex[0]  = source._linePntIndex[0];
    this->_linePntIndex[1]  = source._linePntIndex[1];

    return *this;
}

bool LineIterator::operator<

(

const LineIterator &

other

)

const

The increment operator steps the iterator to the next triangle. If it is already beyond the last triangle it does not change.

Definition at line 302 of file OSGLineIterator.cpp.

References _actPrimIndex.

{
    return 
          (*static_cast<const Inherited *>(this) <  other) ||
        ( (*static_cast<const Inherited *>(this) == other)             &&
          _actPrimIndex                          <  other._actPrimIndex);
}

bool LineIterator::operator==

(

const LineIterator &

other

)

const

The increment operator steps the iterator to the next triangle. If it is already beyond the last triangle it does not change.

Definition at line 310 of file OSGLineIterator.cpp.

References _actPrimIndex, and osg::PrimitiveIterator::isAtEnd().

{
    if(isAtEnd() && other.isAtEnd())
        return true;

    if(isAtEnd() || other.isAtEnd())
        return false;

    return 
        (*static_cast<const Inherited *>(this) == other              ) &&
        _actPrimIndex                          == other._actPrimIndex;
}

bool LineIterator::operator!=

(

const LineIterator &

other

)

const

The increment operator steps the iterator to the next triangle. If it is already beyond the last triangle it does not change.

Definition at line 323 of file OSGLineIterator.cpp.

{
    return !(*this == other);
}

void LineIterator::setToBegin

(

void

)

[protected]

Set the iterator to the beginning of the attached Geometry. Is primarily used by osg::Geometry::beginTriangles, but can also be used to quickly recycle an iterator.

Reimplemented from osg::PrimitiveIterator.

Definition at line 266 of file OSGLineIterator.cpp.

References _lineIndex, osg::PrimitiveIterator::setToBegin(), and startPrim().

Referenced by osg::Geometry::beginLines(), and seek().

{
    PrimitiveIterator::setToBegin();
    _lineIndex = 0;
    startPrim();
}

void LineIterator::setToEnd

(

void

)

[protected]

Set the iterator to the end of the attached Geometry. Is primarily used by osg::Geometry::endTriangles, but can also be used to quickly recycle an iterator.

Reimplemented from osg::PrimitiveIterator.

Definition at line 277 of file OSGLineIterator.cpp.

References _actPrimIndex, and osg::PrimitiveIterator::setToEnd().

Referenced by osg::Geometry::endLines().

{
    PrimitiveIterator::setToEnd();
    _actPrimIndex = 0;
}

void LineIterator::startPrim

(

void

)

[private]

Helper function to reset all state to the beginning of a new primitive. Also skips non-line primitives(triangles, quads, polygons, points) and primitives with less than 2 points.

Definition at line 206 of file OSGLineIterator.cpp.

References _actPrimIndex, _linePntIndex, osg::PrimitiveIterator::getLength(), osg::PrimitiveIterator::getType(), osg::PrimitiveIterator::isAtEnd(), and SWARNING.

Referenced by operator++(), and setToBegin().

{
    // already at end?
    if(isAtEnd())
        return;
        
    _linePntIndex[0] = 0;
    _linePntIndex[1] = 1;
    _actPrimIndex = 2;
    
    // loop until you find a useful primitive or run out
    while(! isAtEnd())
    {
        switch(getType())
        {
        case GL_POINTS:         // non-line types: ignored
        case GL_TRIANGLES:      
        case GL_TRIANGLE_STRIP:
        case GL_TRIANGLE_FAN:
        case GL_QUADS:
        case GL_QUAD_STRIP:
        case GL_POLYGON:
                                break;
        case GL_LINES:          // line types
        case GL_LINE_STRIP: 
        case GL_LINE_LOOP:      if(getLength() >= 2)
                                    return;
                                break;
        default:                SWARNING << "LineIterator::startPrim: "
                                          << "encountered " 
                                          << "unknown primitive type " 
                                          << getType()
                                          << ", ignoring!" << std::endl;
                                break;
        }
        
        ++(static_cast<PrimitiveIterator&>(*this));
    }           
}

void PrimitiveIterator::setGeo

(

const GeometryPtr &

geo

)

[inherited]

Switch the iterator to a new geometry. Automatically sets it to the beginning.

Definition at line 339 of file OSGPrimitiveIterator.cpp.

References osg::PrimitiveIterator::_geo, osg::PrimitiveIterator::_indices, osg::PrimitiveIterator::_lengths, osg::PrimitiveIterator::_types, osg::NullFC, OSG_ASSERT, and osg::PrimitiveIterator::setToBegin().

Referenced by osg::EdgeIterator::EdgeIterator(), osg::FaceIterator::FaceIterator(), LineIterator(), osg::PrimitiveIterator::PrimitiveIterator(), osg::PrimitiveIterator::setGeo(), and osg::TriangleIterator::TriangleIterator().

{
    OSG_ASSERT(geo != NullFC);

    _geo     = geo;
    _types   = geo->getTypes();
    _lengths = geo->getLengths();
    _indices = geo->getIndices();
    
    setToBegin();
}

void PrimitiveIterator::setGeo

(

const NodePtr &

geo

)

[inherited]

Switch the iterator to a new geometry. Automatically sets it to the beginning.

Definition at line 355 of file OSGPrimitiveIterator.cpp.

References osg::AttachmentContainerPtr::dcast(), FWARNING, osg::NodePtr::getCore(), osg::NullFC, and osg::PrimitiveIterator::setGeo().

{
    GeometryPtr gc = GeometryPtr::dcast(geo->getCore());
    
    if(gc == NullFC)
    {
        FWARNING(("PrimitiveIterator::setGeo: called for NodePtr which "
                  "is not a Geometry!\n"));
    }
    else
    {
        setGeo(gc);
    }
}

bool osg::PrimitiveIterator::isAtEnd

(

void

)

const [inline, inherited]

Check if the iterator has already reached the end of the geometry.

Definition at line 55 of file OSGPrimitiveIterator.inl.

References osg::PrimitiveIterator::_ended.

Referenced by osg::TriangleIterator::operator++(), osg::PrimitiveIterator::operator++(), operator++(), osg::FaceIterator::operator++(), osg::EdgeIterator::operator++(), osg::TriangleIterator::operator==(), operator==(), osg::FaceIterator::operator==(), osg::EdgeIterator::operator==(), osg::SplitGraphOp::splitNode(), osg::TriangleIterator::startPrim(), startPrim(), osg::FaceIterator::startPrim(), and osg::EdgeIterator::startPrim().

{
    return _ended;
}

UInt32 osg::PrimitiveIterator::getLength

(

void

)

const [inline, inherited]

Return the length(i.e. number of used vertices) of the current primitive.

Reimplemented in osg::EdgeIterator, and osg::FaceIterator.

Definition at line 73 of file OSGPrimitiveIterator.inl.

References osg::PrimitiveIterator::_actPrimLength.

Referenced by osg::Geometry::adjustVolume(), osg::calcVertexNormalsGeo(), osg::createConvexPrimitives(), osg::EdgeIterator::getLength(), osg::TriangleIterator::operator++(), operator++(), osg::FaceIterator::operator++(), osg::EdgeIterator::operator++(), osg::SplitGraphOp::splitNode(), osg::TriangleIterator::startPrim(), startPrim(), osg::FaceIterator::startPrim(), osg::EdgeIterator::startPrim(), osg::VerifyGraphOp::verifyGeometry(), and osg::VRMLWriteAction::writeLineIndex().

{
    return _actPrimLength;
}

UInt32 osg::PrimitiveIterator::getType

(

void

)

const [inline, inherited]

Return the type of the current primitive.

Definition at line 81 of file OSGPrimitiveIterator.inl.

References osg::PrimitiveIterator::_actPrimType.

Referenced by osg::calcFaceNormals(), osg::calcFaceNormalsGeo(), osg::createConvexPrimitives(), osg::EdgeIterator::getColorIndex(), osg::EdgeIterator::getIndexIndex(), osg::EdgeIterator::getLength(), osg::EdgeIterator::getNormalIndex(), osg::EdgeIterator::getPositionIndex(), osg::EdgeIterator::getSecondaryColorIndex(), osg::EdgeIterator::getTexCoordsIndex(), osg::EdgeIterator::getTexCoordsIndex1(), osg::EdgeIterator::getTexCoordsIndex2(), osg::EdgeIterator::getTexCoordsIndex3(), osg::EdgeIterator::getTexCoordsIndex4(), osg::EdgeIterator::getTexCoordsIndex5(), osg::EdgeIterator::getTexCoordsIndex6(), osg::EdgeIterator::getTexCoordsIndex7(), osg::TriangleIterator::operator++(), operator++(), osg::FaceIterator::operator++(), osg::EdgeIterator::operator++(), osg::SplitGraphOp::splitNode(), osg::TriangleIterator::startPrim(), startPrim(), osg::FaceIterator::startPrim(), osg::EdgeIterator::startPrim(), osg::VRMLWriteAction::writeGeoEnter(), and osg::VRMLWriteAction::writeLineIndex().

{
    return _actPrimType;
}

GeometryPtr osg::PrimitiveIterator::getGeometry

(

void

)

const [inline, inherited]

Return the geometry the iterator is currently attached to.

Definition at line 676 of file OSGPrimitiveIterator.inl.

References osg::PrimitiveIterator::_geo.

Referenced by osg::TriangleIterator::getColor(), getColor(), osg::FaceIterator::getColor(), osg::EdgeIterator::getColor(), osg::TriangleIterator::getNormal(), getNormal(), osg::FaceIterator::getNormal(), osg::EdgeIterator::getNormal(), osg::TriangleIterator::getPosition(), getPosition(), osg::FaceIterator::getPosition(), osg::EdgeIterator::getPosition(), osg::TriangleIterator::getSecondaryColor(), getSecondaryColor(), osg::FaceIterator::getSecondaryColor(), osg::EdgeIterator::getSecondaryColor(), osg::TriangleIterator::getTexCoords(), getTexCoords(), osg::FaceIterator::getTexCoords(), osg::EdgeIterator::getTexCoords(), osg::TriangleIterator::getTexCoords1(), getTexCoords1(), osg::FaceIterator::getTexCoords1(), osg::EdgeIterator::getTexCoords1(), osg::TriangleIterator::getTexCoords2(), getTexCoords2(), osg::FaceIterator::getTexCoords2(), osg::EdgeIterator::getTexCoords2(), osg::TriangleIterator::getTexCoords3(), getTexCoords3(), osg::FaceIterator::getTexCoords3(), osg::EdgeIterator::getTexCoords3(), osg::TriangleIterator::getTexCoords4(), getTexCoords4(), osg::FaceIterator::getTexCoords4(), osg::EdgeIterator::getTexCoords4(), osg::TriangleIterator::getTexCoords5(), getTexCoords5(), osg::FaceIterator::getTexCoords5(), osg::EdgeIterator::getTexCoords5(), osg::TriangleIterator::getTexCoords6(), getTexCoords6(), osg::FaceIterator::getTexCoords6(), osg::EdgeIterator::getTexCoords6(), osg::TriangleIterator::getTexCoords7(), getTexCoords7(), osg::FaceIterator::getTexCoords7(), and osg::EdgeIterator::getTexCoords7().

{
    return _geo;
}

bool PrimitiveIterator::operator<

(

const PrimitiveIterator &

other

)

const [inherited]

Compare two iterators. If the iterators are attached to different geometries a comparison in senseless, in that case false will be returned.

Definition at line 539 of file OSGPrimitiveIterator.cpp.

References osg::PrimitiveIterator::_geo, and osg::PrimitiveIterator::_primIndex.

{
    return _geo       == other._geo &&
           _primIndex <= other._primIndex;
}

bool PrimitiveIterator::operator==

(

const PrimitiveIterator &

other

)

const [inherited]

Compare two iterators. If the iterators are attached to different geometries a comparison in senseless, in that case false will be returned.

Definition at line 548 of file OSGPrimitiveIterator.cpp.

References osg::PrimitiveIterator::_ended, osg::PrimitiveIterator::_geo, and osg::PrimitiveIterator::_primIndex.

{
    return _ended     == other._ended &&
           _geo       == other._geo &&
           _primIndex == other._primIndex;
}

bool PrimitiveIterator::operator!=

(

const PrimitiveIterator &

other

)

const [inherited]

Compare two iterators. If the iterators are attached to different geometries a comparison in senseless, in that case false will be returned.

Definition at line 558 of file OSGPrimitiveIterator.cpp.

{
    return !(*this == other);
}

---

Friends And Related Function Documentation

friend class Geometry [friend]

Reimplemented from osg::PrimitiveIterator.

Definition at line 155 of file OSGLineIterator.h.

---

Member Data Documentation

char LineIterator::cvsid = "@(#)$Id: OSGLineIterator.cpp,v 1.1 2005/01/14 11:24:22 a-m-z Exp $" [static, private]

Reimplemented from osg::PrimitiveIterator.

Definition at line 157 of file OSGLineIterator.h.

Int32 osg::LineIterator::_lineIndex [private]

Definition at line 163 of file OSGLineIterator.h.

Referenced by getIndex(), operator++(), operator=(), and setToBegin().

UInt32 osg::LineIterator::_actPrimIndex [private]

Definition at line 164 of file OSGLineIterator.h.

Referenced by operator++(), operator<(), operator=(), operator==(), setToEnd(), and startPrim().

Int32 osg::LineIterator::_linePntIndex[2] [private]

Definition at line 165 of file OSGLineIterator.h.

Referenced by getColorIndex(), getIndexIndex(), getNormalIndex(), getPositionIndex(), getSecondaryColorIndex(), getTexCoordsIndex(), getTexCoordsIndex1(), getTexCoordsIndex2(), getTexCoordsIndex3(), getTexCoordsIndex4(), getTexCoordsIndex5(), getTexCoordsIndex6(), getTexCoordsIndex7(), LineIterator(), operator++(), operator=(), and startPrim().

---

The documentation for this class was generated from the following files:

• OSGLineIterator.h
• OSGLineIterator.cpp
• OSGLineIterator.inl