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osgEarth 2.1.1
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osgEarth 2.1.1
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Collaboration diagram for osgEarth::Features::GeometryCompiler:Public Member Functions | |
| GeometryCompiler () | |
| GeometryCompiler (const GeometryCompilerOptions &options) | |
| const GeometryCompilerOptions & | options () const |
| GeometryCompilerOptions & | options () |
| osg::Node * | compile (FeatureCursor *input, const Style &style, const FilterContext &context) |
| osg::Node * | compile (Feature *input, const Style &style, const FilterContext &context) |
| osg::Node * | compile (FeatureList &mungeableInput, const Style &style, const FilterContext &context) |
Protected Attributes | |
| GeometryCompilerOptions | _options |
Compiles a collection of features against a style.
Definition at line 88 of file GeometryCompiler.
| GeometryCompiler::GeometryCompiler | ( | ) |
Constructs a new geometry compiler with default options.
Definition at line 91 of file GeometryCompiler.cpp.
{
//nop
}
| GeometryCompiler::GeometryCompiler | ( | const GeometryCompilerOptions & | options | ) |
Constructs a new compiler with preconfigured options.
Definition at line 96 of file GeometryCompiler.cpp.
: _options( options ) { //nop }
| osg::Node * GeometryCompiler::compile | ( | FeatureCursor * | input, |
| const Style & | style, | ||
| const FilterContext & | context | ||
| ) |
Compiles a collection of features into an OSG scene graph.
Definition at line 123 of file GeometryCompiler.cpp.
{
if ( !context.profile() ) {
OE_WARN << LC << "Valid feature profile required" << std::endl;
return 0L;
}
//if ( style.empty() ) {
// OE_WARN << LC << "Non-empty style required" << std::endl;
// return 0L;
//}
// start by making a working copy of the feature set
FeatureList workingSet;
cursor->fill( workingSet );
return compile(workingSet, style, context);
}
Here is the call graph for this function: Here is the caller graph for this function:| osg::Node * GeometryCompiler::compile | ( | FeatureList & | mungeableInput, |
| const Style & | style, | ||
| const FilterContext & | context | ||
| ) |
Definition at line 146 of file GeometryCompiler.cpp.
{
#ifdef PROFILING
osg::Timer_t p_start = osg::Timer::instance()->tick();
unsigned p_features = workingSet.size();
#endif
osg::ref_ptr<osg::Group> resultGroup = new osg::Group();
// create a filter context that will track feature data through the process
FilterContext sharedCX = context;
if ( !sharedCX.extent().isSet() )
sharedCX.extent() = sharedCX.profile()->getExtent();
// only localize coordinates if the map is geocentric AND the extent is
// less than 180 degrees.
const MapInfo& mi = sharedCX.getSession()->getMapInfo();
GeoExtent workingExtent = sharedCX.extent()->transform( sharedCX.profile()->getSRS()->getGeographicSRS() );
bool localize = mi.isGeocentric() && workingExtent.width() < 180.0;
// go through the Style and figure out which filters to use.
const MarkerSymbol* marker = style.get<MarkerSymbol>();
const PointSymbol* point = style.get<PointSymbol>();
const LineSymbol* line = style.get<LineSymbol>();
const PolygonSymbol* polygon = style.get<PolygonSymbol>();
const ExtrusionSymbol* extrusion = style.get<ExtrusionSymbol>();
const AltitudeSymbol* altitude = style.get<AltitudeSymbol>();
const TextSymbol* text = style.get<TextSymbol>();
// if the style was empty, use some defaults based on the geometry type of the
// first feature.
if ( style.empty() && workingSet.size() > 0 )
{
Feature* first = workingSet.begin()->get();
Geometry* geom = first->getGeometry();
if ( geom )
{
switch( geom->getComponentType() )
{
case Geometry::TYPE_LINESTRING:
case Geometry::TYPE_RING:
line = s_defaultLineSymbol.get(); break;
case Geometry::TYPE_POINTSET:
point = s_defaultPointSymbol.get(); break;
case Geometry::TYPE_POLYGON:
polygon = s_defaultPolygonSymbol.get(); break;
}
}
}
if (_options.resampleMode().isSet())
{
ResampleFilter resample;
resample.resampleMode() = *_options.resampleMode();
if (_options.resampleMaxLength().isSet())
{
resample.maxLength() = *_options.resampleMaxLength();
}
sharedCX = resample.push( workingSet, sharedCX );
}
bool altRequired =
altitude && (
altitude->clamping() != AltitudeSymbol::CLAMP_NONE ||
altitude->verticalOffset().isSet() ||
altitude->verticalScale().isSet() );
// model substitution
if ( marker )
{
// use a separate filter context since we'll be munging the data
FilterContext markerCX = sharedCX;
if ( marker->placement() == MarkerSymbol::PLACEMENT_RANDOM ||
marker->placement() == MarkerSymbol::PLACEMENT_INTERVAL )
{
ScatterFilter scatter;
scatter.setDensity( *marker->density() );
scatter.setRandom( marker->placement() == MarkerSymbol::PLACEMENT_RANDOM );
scatter.setRandomSeed( *marker->randomSeed() );
markerCX = scatter.push( workingSet, markerCX );
}
else if ( marker->placement() == MarkerSymbol::PLACEMENT_CENTROID )
{
CentroidFilter centroid;
centroid.push( workingSet, markerCX );
}
if ( altRequired )
{
AltitudeFilter clamp;
clamp.setPropertiesFromStyle( style );
markerCX = clamp.push( workingSet, markerCX );
// don't set this; we changed the input data.
//altRequired = false;
}
SubstituteModelFilter sub( style );
if ( marker->scale().isSet() )
{
//Turn on GL_NORMALIZE so lighting works properly
resultGroup->getOrCreateStateSet()->setMode(GL_NORMALIZE, osg::StateAttribute::ON );
//sub.setModelMatrix( osg::Matrixd::scale( *marker->scale() ) );
}
sub.setClustering( *_options.clustering() );
if ( _options.featureName().isSet() )
sub.setFeatureNameExpr( *_options.featureName() );
osg::Node* node = sub.push( workingSet, markerCX );
if ( node )
{
resultGroup->addChild( node );
}
}
// extruded geometry
if ( extrusion )
{
if ( altRequired )
{
AltitudeFilter clamp;
clamp.setPropertiesFromStyle( style );
sharedCX = clamp.push( workingSet, sharedCX );
altRequired = false;
}
ExtrudeGeometryFilter extrude;
extrude.setStyle( style );
// apply per-feature naming if requested.
if ( _options.featureName().isSet() )
extrude.setFeatureNameExpr( *_options.featureName() );
osg::Node* node = extrude.push( workingSet, sharedCX );
if ( node )
{
resultGroup->addChild( node );
}
}
// simple geometry
else if ( point || line || polygon )
{
if ( altRequired )
{
AltitudeFilter clamp;
clamp.setPropertiesFromStyle( style );
sharedCX = clamp.push( workingSet, sharedCX );
altRequired = false;
}
BuildGeometryFilter filter( style );
if ( _options.maxGranularity().isSet() )
filter.maxGranularity() = *_options.maxGranularity();
if ( _options.geoInterp().isSet() )
filter.geoInterp() = *_options.geoInterp();
if ( _options.mergeGeometry().isSet() )
filter.mergeGeometry() = *_options.mergeGeometry();
if ( _options.featureName().isSet() )
filter.featureName() = *_options.featureName();
osg::Node* node = filter.push( workingSet, sharedCX );
if ( node )
{
resultGroup->addChild( node );
}
}
if ( text )
{
if ( altRequired )
{
AltitudeFilter clamp;
clamp.setPropertiesFromStyle( style );
sharedCX = clamp.push( workingSet, sharedCX );
altRequired = false;
}
BuildTextFilter filter( style );
osg::Node* node = filter.push( workingSet, sharedCX );
if ( node )
{
resultGroup->addChild( node );
}
}
resultGroup->getOrCreateStateSet()->setMode( GL_BLEND, 1 );
//osgDB::writeNodeFile( *(resultGroup.get()), "out.osg" );
#ifdef PROFILING
osg::Timer_t p_end = osg::Timer::instance()->tick();
OE_INFO << LC
<< "features = " << p_features <<
<< " ,time = " << osg::Timer::instance()->delta_s(p_start, p_end) << " s." << std::endl;
#endif
return resultGroup.release();
}
Here is the call graph for this function:| osg::Node * GeometryCompiler::compile | ( | Feature * | input, |
| const Style & | style, | ||
| const FilterContext & | context | ||
| ) |
Definition at line 103 of file GeometryCompiler.cpp.
{
if ( !context.profile() ) {
OE_WARN << LC << "Valid feature profile required" << std::endl;
return 0L;
}
//if ( style.empty() ) {
// OE_WARN << LC << "Non-empty style required" << std::endl;
// return 0L;
//}
FeatureList workingSet;
workingSet.push_back(feature);
return compile(workingSet, style, context);
}
Here is the call graph for this function:| const GeometryCompilerOptions& osgEarth::Features::GeometryCompiler::options | ( | ) | const [inline] |
| GeometryCompilerOptions& osgEarth::Features::GeometryCompiler::options | ( | ) | [inline] |
Access the options for editing.
Definition at line 102 of file GeometryCompiler.
{ return _options; }
Definition at line 123 of file GeometryCompiler.
1.7.3