void
FeatureModelGraph::redraw()
{
removeChildren( 0, getNumChildren() );
osg::Node* node = 0;
// if there's a display schema in place, set up for quadtree paging.
if ( _options.layout().isSet() || _useTiledSource )
{
node = setupPaging();
}
else
{
FeatureLevel defaultLevel( 0.0f, FLT_MAX );
//Remove all current children
node = buildLevel( defaultLevel, GeoExtent::INVALID, 0 );
}
float minRange = -FLT_MAX;
if ( _options.minRange().isSet() )
minRange = std::max(minRange, *_options.minRange());
if ( _options.layout().isSet() && _options.layout()->minRange().isSet() )
minRange = std::max(minRange, *_options.layout()->minRange());
float maxRange = FLT_MAX;
if ( _options.maxRange().isSet() )
maxRange = std::min(maxRange, *_options.maxRange());
if ( _options.layout().isSet() && _options.layout()->maxRange().isSet() )
maxRange = std::min(maxRange, *_options.layout()->maxRange());
//If they've specified a min/max range, setup an LOD
if ( minRange != -FLT_MAX || maxRange != FLT_MAX )
{
ElevationLOD *lod = new ElevationLOD(_session->getMapInfo().getSRS(), minRange, maxRange );
lod->addChild( node );
node = lod;
}
addChild( node );
_session->getFeatureSource()->sync( _revision );
_dirty = false;
}
void
FeatureModelGraph::redraw()
{
// clear it out
removeChildren( 0, getNumChildren() );
// zero out any decorators
_clampable = 0L;
_drapeable = 0L;
_overlayPlaceholder = new osg::Group();
_overlayInstalled = _overlayPlaceholder;
osg::Node* node = 0;
// if there's a display schema in place, set up for quadtree paging.
if ( _options.layout().isSet() || _useTiledSource )
{
node = setupPaging();
}
else
{
FeatureLevel defaultLevel( 0.0f, FLT_MAX );
//Remove all current children
node = buildLevel( defaultLevel, GeoExtent::INVALID, 0 );
}
float minRange = -FLT_MAX;
if ( _options.minRange().isSet() )
minRange = std::max(minRange, *_options.minRange());
if ( _options.layout().isSet() && _options.layout()->minRange().isSet() )
minRange = std::max(minRange, *_options.layout()->minRange());
float maxRange = FLT_MAX;
if ( _options.maxRange().isSet() )
maxRange = std::min(maxRange, *_options.maxRange());
if ( _options.layout().isSet() && _options.layout()->maxRange().isSet() )
maxRange = std::min(maxRange, *_options.layout()->maxRange());
//If they've specified a min/max range, setup an LOD
if ( minRange != -FLT_MAX || maxRange != FLT_MAX )
{
// todo: revisit this, make sure this is still right.
ElevationLOD *lod = new ElevationLOD(_session->getMapInfo().getSRS(), minRange, maxRange );
lod->addChild( node );
node = lod;
}
// If we want fading, install fading.
if ( _options.fading().isSet() )
{
FadeEffect* fader = new FadeEffect();
fader->setFadeDuration( *_options.fading()->duration() );
fader->setMaxRange( *_options.fading()->maxRange() );
fader->setAttenuationDistance( *_options.fading()->attenuationDistance() );
fader->addChild( node );
node = fader;
}
// overlay placeholder. this will make it easier to
// replace with a clamper/draper later if necessary
{
_overlayInstalled->addChild( node );
node = _overlayInstalled;
}
addChild( node );
_session->getFeatureSource()->sync( _revision );
_dirty = false;
}
/**
* Builds geometry for feature data at a particular level, and constrained by an extent.
* The extent is either (a) expressed in "extent" literally, as is the case in a non-tiled
* data source, or (b) expressed implicitly by a TileKey, which is the case for a tiled
* data source.
*/
osg::Group*
FeatureModelGraph::buildLevel( const FeatureLevel& level, const GeoExtent& extent, const TileKey* key )
{
// set up for feature indexing if appropriate:
osg::ref_ptr<osg::Group> group;
FeatureSourceIndexNode* index = 0L;
if ( _session->getFeatureSource() && _options.featureIndexing().isSet() )
{
index = new FeatureSourceIndexNode( _session->getFeatureSource(), *_options.featureIndexing() );
group = index;
}
else
{
group = new osg::Group();
}
// form the baseline query, which does a spatial query based on the working extent.
Query query;
if ( extent.isValid() )
query.bounds() = extent.bounds();
// add a tile key to the query if there is one, to support TFS-style queries
if ( key )
query.tileKey() = *key;
// does the level have a style name set?
if ( level.styleName().isSet() )
{
osg::Node* node = 0L;
const Style* style = _session->styles()->getStyle( *level.styleName(), false );
if ( style )
{
// found a specific style to use.
node = createStyleGroup( *style, query, index );
if ( node )
group->addChild( node );
}
else
{
const StyleSelector* selector = _session->styles()->getSelector( *level.styleName() );
if ( selector )
{
buildStyleGroups( selector, query, index, group.get() );
}
}
}
else
{
Style defaultStyle;
if ( _session->styles()->selectors().size() == 0 )
{
// attempt to glean the style from the feature source name:
defaultStyle = *_session->styles()->getStyle(
*_session->getFeatureSource()->getFeatureSourceOptions().name() );
}
osg::Node* node = build( defaultStyle, query, extent, index );
if ( node )
group->addChild( node );
}
if ( group->getNumChildren() > 0 )
{
// account for a min-range here. Do not address the max-range here; that happens
// above when generating paged LOD nodes, etc.
float minRange = level.minRange();
if ( minRange > 0.0f )
{
ElevationLOD* lod = new ElevationLOD( _session->getMapSRS() );
lod->setMinElevation( minRange );
lod->addChild( group.get() );
group = lod;
}
// install a cluster culler.
if ( _session->getMapInfo().isGeocentric() && _options.clusterCulling() == true )
{
const FeatureProfile* featureProfile = _session->getFeatureSource()->getFeatureProfile();
const GeoExtent& ccExtent = extent.isValid() ? extent : featureProfile->getExtent();
if ( ccExtent.isValid() )
{
// if the extent is more than 90 degrees, bail
GeoExtent geodeticExtent = ccExtent.transform( ccExtent.getSRS()->getGeographicSRS() );
if ( geodeticExtent.width() < 90.0 && geodeticExtent.height() < 90.0 )
{
// get the geocentric tile center:
osg::Vec3d tileCenter;
ccExtent.getCentroid( tileCenter.x(), tileCenter.y() );
osg::Vec3d centerECEF;
ccExtent.getSRS()->transform( tileCenter, _session->getMapSRS()->getECEF(), centerECEF );
//ccExtent.getSRS()->transformToECEF( tileCenter, centerECEF );
osg::NodeCallback* ccc = ClusterCullingFactory::create2( group.get(), centerECEF );
if ( ccc )
group->addCullCallback( ccc );
}
}
}
// if indexing is enabled, build the index now.
if ( index )
index->reindex();
return group.release();
}
else
{
return 0L;
}
}
void
FeatureModelGraph::redraw()
{
removeChildren( 0, getNumChildren() );
// initialize the clamping node first, since we need it in order
// to build the default level
_clamper = new ClampableNode(0L, false);
osg::Node* node = 0;
// if there's a display schema in place, set up for quadtree paging.
if ( _options.layout().isSet() || _useTiledSource )
{
node = setupPaging();
}
else
{
FeatureLevel defaultLevel( 0.0f, FLT_MAX );
//Remove all current children
node = buildLevel( defaultLevel, GeoExtent::INVALID, 0 );
}
float minRange = -FLT_MAX;
if ( _options.minRange().isSet() )
minRange = std::max(minRange, *_options.minRange());
if ( _options.layout().isSet() && _options.layout()->minRange().isSet() )
minRange = std::max(minRange, *_options.layout()->minRange());
float maxRange = FLT_MAX;
if ( _options.maxRange().isSet() )
maxRange = std::min(maxRange, *_options.maxRange());
if ( _options.layout().isSet() && _options.layout()->maxRange().isSet() )
maxRange = std::min(maxRange, *_options.layout()->maxRange());
//If they've specified a min/max range, setup an LOD
if ( minRange != -FLT_MAX || maxRange != FLT_MAX )
{
ElevationLOD *lod = new ElevationLOD(_session->getMapInfo().getSRS(), minRange, maxRange );
lod->addChild( node );
node = lod;
}
// If we want fading, install fading.
if ( _options.fading().isSet() )
{
FadeEffect* fader = new FadeEffect();
fader->setFadeDuration( *_options.fading()->duration() );
fader->setMaxRange( *_options.fading()->maxRange() );
fader->setAttenuationDistance( *_options.fading()->attenuationDistance() );
fader->addChild( node );
node = fader;
}
// clamper. TODO: figure out if we can optionally include this
{
_clamper->addChild( node );
node = _clamper;
}
addChild( node );
_session->getFeatureSource()->sync( _revision );
_dirty = false;
}
