本文整理汇总了C++中FilterContext::toString方法的典型用法代码示例。如果您正苦于以下问题：C++ FilterContext::toString方法的具体用法？C++ FilterContext::toString怎么用？C++ FilterContext::toString使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类FilterContext的用法示例。
在下文中一共展示了FilterContext::toString方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Point
FilterContext
BuildGeometryFilter::push( FeatureList& input, const FilterContext& context )
{
reset();
OE_DEBUG << LC
<< context.toString() << std::endl;
bool ok = true;
for( FeatureList::iterator i = input.begin(); i != input.end(); i++ )
if ( !push( i->get(), context ) )
ok = false;
// In a feature class with one point-per-feature, you end up with one geometry per point,
// which results is (a) very bad performance and (b) geometries with a zero bbox that therefore
// don't draw. This is not a total solution (won't work for a single point, isn't friendly for
// doing feature-selection, etc.) but is a workable temporary fix. In the future we're going
// to replace this filter anyway with something more highly optimized (a la osgGIS).
//
// however...seems that MERGE_GEOMETRY destroys almost everything except for points!!
if ( _mergeGeometry == true )
{
osgUtil::Optimizer optimizer;
optimizer.optimize( _geode.get(), osgUtil::Optimizer::MERGE_GEOMETRY );
}
if ( ok )
{
if ( !_style.empty() && _geode.valid() )
{
// could optimize this to only happen is lines or points were created ..
const LineSymbol* lineSymbol = _style.getSymbol<LineSymbol>();
float size = 1.0;
if (lineSymbol)
size = lineSymbol->stroke()->width().value();
_geode->getOrCreateStateSet()->setAttribute( new osg::Point(size), osg::StateAttribute::ON );
_geode->getOrCreateStateSet()->setAttribute( new osg::LineWidth(size), osg::StateAttribute::ON );
const PointSymbol* pointSymbol = _style.getSymbol<PointSymbol>();
if ( pointSymbol && pointSymbol->size().isSet() )
_geode->getOrCreateStateSet()->setAttribute(
new osg::Point( *pointSymbol->size() ), osg::StateAttribute::ON );
}
_result = _geode.release();
if ( context.hasReferenceFrame() )
{
osg::MatrixTransform* delocalizer = new osg::MatrixTransform( context.inverseReferenceFrame() );
delocalizer->addChild( _result.get() );
_result = delocalizer;
}
}
else
{
_result = 0L;
}
FilterContext outCx( context );
outCx.setReferenceFrame( osg::Matrixd::identity() ); // clear the ref frame.
return outCx;
}