C++ (Cpp) Matrixd::invert Examples

Example #1

File: SpatialReference.cpp Project: mysticbob/osgearth

bool
SpatialReference::createWorldToLocal(const osg::Vec3d& xyz, osg::Matrixd& out_world2local ) const
{
    osg::Matrixd local2world;
    if ( !createLocalToWorld(xyz, local2world) )
        return false;
    out_world2local.invert(local2world);
    return true;
}

Example #2

File: Filter.cpp Project: Brucezhou1979/osgearth

void
FeaturesToNodeFilter::computeLocalizers( const FilterContext& context, const osgEarth::GeoExtent &extent, osg::Matrixd &out_w2l, osg::Matrixd &out_l2w )
{
    if ( context.isGeoreferenced() )
    {
        if ( context.getSession()->getMapInfo().isGeocentric() )
        {
            const SpatialReference* geogSRS = context.profile()->getSRS()->getGeographicSRS();
            GeoExtent geodExtent = extent.transform( geogSRS );
            if ( geodExtent.width() < 180.0 )
            {
                osg::Vec3d centroid, centroidECEF;
                geodExtent.getCentroid( centroid.x(), centroid.y() );
                geogSRS->transform( centroid, geogSRS->getECEF(), centroidECEF );
                geogSRS->getECEF()->createLocalToWorld( centroidECEF, out_l2w );
                out_w2l.invert( out_l2w );
            }
        }

        else // projected
        {
            if ( extent.isValid() )
            {
                osg::Vec3d centroid;
                extent.getCentroid(centroid.x(), centroid.y());

                extent.getSRS()->transform(
                    centroid,
                    context.getSession()->getMapInfo().getProfile()->getSRS(),
                    centroid );

                out_w2l.makeTranslate( -centroid );
                out_l2w.invert( out_w2l );
            }
        }
    }
}