osgEarth::Util::GeoGraph Class Reference

Inheritance diagram for osgEarth::Util::GeoGraph:

Collaboration diagram for osgEarth::Util::GeoGraph:

List of all members.

Public Member Functions
	GeoGraph (const GeoExtent &extent, float maxRange, unsigned maxObjects=500, unsigned splitDim=2, float splitRangeFactor=0.5f, unsigned rootWidth=2, unsigned rootHeight=2)
bool	insertObject (GeoObject *object)
Private Attributes
unsigned	_rootWidth
unsigned	_rootHeight

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Detailed Description

Definition at line 113 of file SpatialData.

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Constructor & Destructor Documentation

GeoGraph::GeoGraph	(	const GeoExtent &	extent,
		float	maxRange,
		unsigned	maxObjects = 500,
		unsigned	splitDim = 2,
		float	splitRangeFactor = 0.5f,
		unsigned	rootWidth = 2,
		unsigned	rootHeight = 2
	)

Definition at line 113 of file SpatialData.cpp.

                                                             :
GeoCell( extent, maxRange, maxObjects, splitDim, splitRangeFactor, 0 )
{
    _rootWidth = osg::maximum( rootWidth, (unsigned)2 );
    _rootHeight = osg::maximum( rootHeight, (unsigned)2 );

    if ( _depth == 0 )
    {
        double xinterval = extent.width() / (double)_rootWidth;
        double yinterval = extent.height() / (double)_rootHeight;

        for( unsigned y=0; y<_rootHeight; ++y )
        {
            for( unsigned x=0; x<_rootWidth; ++x )
            {
                GeoExtent cellExtent(
                    _extent.getSRS(),
                    _extent.xMin() + xinterval*(double)x,
                    _extent.yMin() + yinterval*(double)y,
                    _extent.xMin() + xinterval*(double)(x+1),
                    _extent.yMin() + yinterval*(double)(y+1) );

                GeoCell * child = new GeoCell(
                    cellExtent,
                    _maxRange,
                    _maxObjects,
                    _splitDim,
                    _splitRangeFactor,
                    1 );

                this->addChild( child, 0, maxRange ); //FLT_MAX );
            }
        }                    
    }
}

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Member Function Documentation

bool GeoGraph::insertObject

(

GeoObject *

object

)

[virtual]

Adds an object to this geocell graph.

Reimplemented from osgEarth::Util::GeoCell.

Definition at line 152 of file SpatialData.cpp.

{
    osg::Vec3d loc;
    if ( object->getLocation(loc) )
    {
        unsigned index = getIndex( _extent, loc, _rootWidth, _rootHeight );
        return static_cast<GeoCell*>(getChild(index))->insertObject( object );
    }
    else
    {
        return false;
    }
}

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Member Data Documentation

unsigned osgEarth::Util::GeoGraph::_rootHeight [private]

Definition at line 129 of file SpatialData.

unsigned osgEarth::Util::GeoGraph::_rootWidth [private]

Definition at line 129 of file SpatialData.

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

• /home/cube/sources/osgearth/src/osgEarthUtil/SpatialData
• /home/cube/sources/osgearth/src/osgEarthUtil/SpatialData.cpp