DYT/Tool/OpenSceneGraph-3.6.5/include/osgEarth/CoverageSymbol
2024-12-25 07:49:36 +08:00

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/* -*-c++-*- */
/* osgEarth - Geospatial SDK for OpenSceneGraph
* Copyright 2020 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/>
*/
#ifndef OSGEARTHSYMBOLOGY_COVERAGE_SYMBOL_H
#define OSGEARTHSYMBOLOGY_COVERAGE_SYMBOL_H 1
#include <osgEarth/Common>
#include <osgEarth/Expression>
#include <osgEarth/Symbol>
#include <osg/Referenced>
#include <vector>
namespace osgEarth
{
/**
* Symbol that contains coverage encoding information
*/
class OSGEARTH_EXPORT CoverageSymbol : public Symbol
{
public:
META_Object(osgEarth, CoverageSymbol);
/** construct a symbol */
CoverageSymbol(const Config& conf =Config());
CoverageSymbol(const CoverageSymbol& rhs,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
/** coverage value expression; resolves to a 32-bit floating point number. */
optional<NumericExpression>& valueExpression() { return _valueExpr; }
const optional<NumericExpression>& valueExpression() const { return _valueExpr; }
public:
virtual Config getConfig() const;
virtual void mergeConfig( const Config& conf );
static void parseSLD(const Config& c, class Style& style);
protected:
optional<NumericExpression> _valueExpr;
/** dtor */
virtual ~CoverageSymbol() { }
};
} // namespace osgEarth
#endif // OSGEARTHSYMBOLOGY_COVERAGE_SYMBOL_H