osgEarth::Features::FeaturesToNodeFilter Class Reference

Inheritance diagram for osgEarth::Features::FeaturesToNodeFilter:

Collaboration diagram for osgEarth::Features::FeaturesToNodeFilter:

List of all members.

Public Member Functions
virtual osg::Node *	push (FeatureList &input, FilterContext &context)=0
const osg::Matrixd &	local2world () const
const osg::Matrixd &	world2local () const
Protected Member Functions
void	computeLocalizers (const FilterContext &context)
osg::Node *	delocalize (osg::Node *node) const
osg::Group *	delocalizeAsGroup (osg::Node *node) const
osg::Group *	createDelocalizeGroup () const
Protected Attributes
osg::Matrixd	_world2local
osg::Matrixd	_local2world

---

Detailed Description

Base class for a filter that converts features into an osg Node.

Definition at line 54 of file Filter.

---

Member Function Documentation

void FeaturesToNodeFilter::computeLocalizers

(

const FilterContext &

context

)

[protected]

Definition at line 27 of file Filter.cpp.

{
    if ( context.getSession()->getMapInfo().isGeocentric() )
    {
        const SpatialReference* geogSRS = context.profile()->getSRS()->getGeographicSRS();
        GeoExtent geodExtent = context.extent()->transform( geogSRS );
        if ( geodExtent.width() < 180.0 )
        {
            osg::Vec3d centroid, centroidECEF;
            geodExtent.getCentroid( centroid.x(), centroid.y() );
            geogSRS->transformToECEF( centroid, centroidECEF );
            _local2world = ECEF::createInverseRefFrame( centroidECEF );
            _world2local.invert( _local2world );
        }
    }
}

Here is the call graph for this function:

Here is the caller graph for this function:

osg::Group * FeaturesToNodeFilter::createDelocalizeGroup

(

)

const [protected]

Definition at line 63 of file Filter.cpp.

{
    osg::Group* group = _local2world.isIdentity() ?
        new osg::Group() :
        new osg::MatrixTransform( _local2world );

    return group;
}

Here is the caller graph for this function:

osg::Node * FeaturesToNodeFilter::delocalize

(

osg::Node *

node

)

const [protected]

Parents the node with a localizer group if necessary

Definition at line 45 of file Filter.cpp.

{
    if ( !_local2world.isIdentity() ) 
        return delocalizeAsGroup( node );
    else
        return node;
}

Here is the caller graph for this function:

osg::Group * FeaturesToNodeFilter::delocalizeAsGroup

(

osg::Node *

node

)

const [protected]

Definition at line 54 of file Filter.cpp.

{
    osg::Group* group = createDelocalizeGroup();
    if ( node )
        group->addChild( node );
    return group;
}

const osg::Matrixd& osgEarth::Features::FeaturesToNodeFilter::local2world

(

)

const [inline]

Definition at line 61 of file Filter.

{ return _local2world; }

virtual osg::Node* osgEarth::Features::FeaturesToNodeFilter::push	(	FeatureList &	input,
		FilterContext &	context
	)		[pure virtual]

Implemented in osgEarth::Features::BuildGeometryFilter, osgEarth::Features::BuildTextFilter, osgEarth::Features::ExtrudeGeometryFilter, and osgEarth::Features::SubstituteModelFilter.

const osg::Matrixd& osgEarth::Features::FeaturesToNodeFilter::world2local

(

)

const [inline]

Definition at line 63 of file Filter.

{ return _world2local; }

---

Member Data Documentation

osg::Matrixd osgEarth::Features::FeaturesToNodeFilter::_local2world [protected]

Definition at line 76 of file Filter.

osg::Matrixd osgEarth::Features::FeaturesToNodeFilter::_world2local [protected]

Definition at line 76 of file Filter.

---

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

• /home/cube/sources/osgearth/src/osgEarthFeatures/Filter
• /home/cube/sources/osgearth/src/osgEarthFeatures/Filter.cpp