FragmentList
BuildGeomFilter::process( FeatureList& input, FilterEnv* env )
{
// if features are arriving in batch, resolve the color here.
// otherwise we will resolve it later in process(feature,env).
is_batch = input.size() > 1;
batch_feature_color = overall_color;
if ( is_batch && getColorScript() )
{
ScriptResult r = env->getScriptEngine()->run( getColorScript(), env );
if ( r.isValid() )
batch_feature_color = r.asVec4();
else
env->getReport()->error( r.asString() );
}
return FragmentFilter::process( input, env );
}
osg::Vec4
BuildGeomFilter::getColorForFeature( Feature* feature, FilterEnv* env )
{
osg::Vec4 result = overall_color;
if ( is_batch )
{
result = batch_feature_color;
}
else if ( getColorScript() )
{
ScriptResult r = env->getScriptEngine()->run( getColorScript(), feature, env );
if ( r.isValid() )
result = r.asVec4();
else
env->getReport()->error( r.asString() );
}
return result;
}