/home/cube/sources/osgearth/src/osgEarthSymbology/ExtrusionSymbol.cpp

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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2008-2010 Pelican Mapping
 * http://osgearth.org
 *
 * osgEarth is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */
#include <osgEarthSymbology/ExtrusionSymbol>

using namespace osgEarth;
using namespace osgEarth::Symbology;

ExtrusionSymbol::ExtrusionSymbol( const Config& conf ) :
Symbol    ( conf ),
_height   ( 10.0 ),
_flatten  ( true ),
_heightRef( HEIGHT_REFERENCE_Z )
{
    if ( !conf.empty() )
        mergeConfig(conf);
}

Config 
ExtrusionSymbol::getConfig() const
{
    Config conf = Symbol::getConfig();
    conf.key() = "extrusion";
    conf.addIfSet   ( "height",            _height );
    conf.addIfSet   ( "flatten",           _flatten );
    conf.addObjIfSet( "height_expression", _heightExpr );
    conf.addIfSet   ( "height_reference", "z",   _heightRef, HEIGHT_REFERENCE_Z );
    conf.addIfSet   ( "height_reference", "msl", _heightRef, HEIGHT_REFERENCE_MSL );
    conf.addIfSet   ( "wall_style", _wallStyleName );
    conf.addIfSet   ( "roof_style", _roofStyleName );
    return conf;
}

void 
ExtrusionSymbol::mergeConfig( const Config& conf )
{
    conf.getIfSet   ( "height",  _height );
    conf.getIfSet   ( "flatten", _flatten );
    conf.getObjIfSet( "height_expression", _heightExpr );
    conf.getIfSet   ( "height_reference", "z",   _heightRef, HEIGHT_REFERENCE_Z );
    conf.getIfSet   ( "height_reference", "msl", _heightRef, HEIGHT_REFERENCE_MSL );
    conf.getIfSet   ( "wall_style", _wallStyleName );
    conf.getIfSet   ( "roof_style", _roofStyleName );
}