osgEarth::Bounds Class Reference

List of all members.

Public Member Functions
	Bounds ()
	Bounds (double xmin, double ymin, double xmax, double ymax)
double	width () const
double	height () const
double	depth () const
bool	contains (double x, double y) const
bool	contains (const Bounds &rhs) const
Bounds	unionWith (const Bounds &rhs) const
Bounds	intersectionWith (const Bounds &rhs) const
void	expandBy (double x, double y)
void	expandBy (double x, double y, double z)
void	expandBy (const Bounds &rhs)
osg::Vec2d	center2d () const
double	radius2d () const
std::string	toString () const
bool	isValid () const
bool	isEmpty () const
void	transform (const SpatialReference *fromSRS, const SpatialReference *toSRS)

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Detailed Description

An "anonymous" bounding extent (i.e., no geo reference information)

Definition at line 37 of file GeoData.

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Constructor & Destructor Documentation

Bounds::Bounds

(

)

Definition at line 41 of file GeoData.cpp.

               :
osg::BoundingBoxImpl<osg::Vec3d>( DBL_MAX, DBL_MAX, DBL_MAX, -DBL_MAX, -DBL_MAX, -DBL_MAX )
{
    //nop
}

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Bounds::Bounds	(	double	xmin,
		double	ymin,
		double	xmax,
		double	ymax
	)

Definition at line 47 of file GeoData.cpp.

                                                                  :
osg::BoundingBoxImpl<osg::Vec3d>( xmin, ymin, -DBL_MAX, xmax, ymax, DBL_MAX )
{
    //nop
}

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Member Function Documentation

osg::Vec2d Bounds::center2d

(

)

const

Definition at line 149 of file GeoData.cpp.

                       {
    osg::Vec3d c = center();
    return osg::Vec2d( c.x(), c.y() );
}

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bool Bounds::contains	(	double	x,
		double	y
	)		const

Definition at line 60 of file GeoData.cpp.

{
    return 
        isValid() &&
        x >= xMin() && x <= xMax() && y >= yMin() && y <= yMax();
}

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bool Bounds::contains

(

const Bounds &

rhs

)

const

Definition at line 68 of file GeoData.cpp.

{
    return 
        isValid() && rhs.isValid() && 
        xMin() <= rhs.xMin() && xMax() >= rhs.xMax() &&
        yMin() <= rhs.yMin() && yMax() >= rhs.yMax();
}

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double Bounds::depth

(

)

const

Definition at line 144 of file GeoData.cpp.

                    {
    return zMax()-zMin();
}

void Bounds::expandBy	(	double	x,
		double	y
	)

Definition at line 77 of file GeoData.cpp.

{
    osg::BoundingBoxImpl<osg::Vec3d>::expandBy( x, y, 0 );
}

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void Bounds::expandBy	(	double	x,
		double	y,
		double	z
	)

Definition at line 83 of file GeoData.cpp.

{
    osg::BoundingBoxImpl<osg::Vec3d>::expandBy( x, y, z );
}

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void Bounds::expandBy

(

const Bounds &

rhs

)

Definition at line 89 of file GeoData.cpp.

{
    osg::BoundingBoxImpl<osg::Vec3d>::expandBy( rhs );
}

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double Bounds::height

(

)

const

Definition at line 139 of file GeoData.cpp.

                     {
    return yMax()-yMin();
}

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Bounds Bounds::intersectionWith

(

const Bounds &

rhs

)

const

Definition at line 113 of file GeoData.cpp.

{
    if ( valid() && !rhs.valid() ) return *this;
    if ( !valid() && rhs.valid() ) return rhs;

    if ( this->contains(rhs) ) return rhs;
    if ( rhs.contains(*this) ) return *this;

    if ( !intersects(rhs) ) return Bounds();

    double xmin, xmax, ymin, ymax;

    xmin = ( xMin() > rhs.xMin() && xMin() < rhs.xMax() ) ? xMin() : rhs.xMin();
    xmax = ( xMax() > rhs.xMin() && xMax() < rhs.xMax() ) ? xMax() : rhs.xMax();
    ymin = ( yMin() > rhs.yMin() && yMin() < rhs.yMax() ) ? yMin() : rhs.yMin();
    ymax = ( yMax() > rhs.yMin() && yMax() < rhs.yMax() ) ? yMax() : rhs.yMax();

    return Bounds(xmin, ymin, xmax, ymax);
}

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bool osgEarth::Bounds::isEmpty

(

)

const [inline]

Definition at line 57 of file GeoData.

{ return !isValid(); }

bool Bounds::isValid

(

)

const

Definition at line 54 of file GeoData.cpp.

{
    return xMin() <= xMax() && yMin() <= yMax();
}

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double Bounds::radius2d

(

)

const

Definition at line 155 of file GeoData.cpp.

                       {
    return (center2d() - osg::Vec2d(xMin(),yMin())).length();
}

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std::string Bounds::toString

(

)

const

Definition at line 160 of file GeoData.cpp.

                       {
    std::stringstream buf;
    buf << "(" << xMin() << "," << yMin() << " => " << xMax() << "," << yMax() << ")";
    std::string result = buf.str();
    return result;
}

void Bounds::transform	(	const SpatialReference *	fromSRS,
		const SpatialReference *	toSRS
	)

Definition at line 168 of file GeoData.cpp.

{
    from->transformExtent( to, _min.x(), _min.y(), _max.x(), _max.y() );
}

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Bounds Bounds::unionWith

(

const Bounds &

rhs

)

const

Definition at line 95 of file GeoData.cpp.

{
    if ( valid() && !rhs.valid() ) return *this;
    if ( !valid() && rhs.valid() ) return rhs;

    Bounds u;
    if ( intersects(rhs) ) {
        u.xMin() = xMin() >= rhs.xMin() && xMin() <= rhs.xMax() ? xMin() : rhs.xMin();
        u.xMax() = xMax() >= rhs.xMin() && xMax() <= rhs.xMax() ? xMax() : rhs.xMax();
        u.yMin() = yMin() >= rhs.yMin() && yMin() <= rhs.yMax() ? yMin() : rhs.yMin();
        u.yMax() = yMax() >= rhs.yMin() && yMax() <= rhs.yMax() ? yMax() : rhs.yMax();
        u.zMin() = zMin() >= rhs.zMin() && zMin() <= rhs.zMax() ? zMin() : rhs.zMin();
        u.zMax() = zMax() >= rhs.zMin() && zMax() <= rhs.zMax() ? zMax() : rhs.zMax();
    }
    return u;
}

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double Bounds::width

(

)

const

Definition at line 134 of file GeoData.cpp.

                    {
    return xMax()-xMin();
}

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

• /home/cube/sources/osgearth/src/osgEarth/GeoData
• /home/cube/sources/osgearth/src/osgEarth/GeoData.cpp