94 lines
3.7 KiB
Plaintext
94 lines
3.7 KiB
Plaintext
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/* -*-c++-*- */
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/* osgEarth - Geospatial SDK for OpenSceneGraph
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* Copyright 2020 Pelican Mapping
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* http://osgearth.org
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*
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* osgEarth is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#ifndef OSGEARTHSYMBOLOGY_LINE_SYMBOL_H
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#define OSGEARTHSYMBOLOGY_LINE_SYMBOL_H 1
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#include <osgEarth/Symbol>
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#include <osgEarth/Stroke>
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namespace osgEarth
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{
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/**
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* Symbol that describes how to draw linear geometry.
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*/
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class OSGEARTH_EXPORT LineSymbol : public Symbol
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{
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public:
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META_Object(osgEarth, LineSymbol);
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LineSymbol(const LineSymbol& rhs,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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LineSymbol(const Config& conf =Config());
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/** dtor */
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virtual ~LineSymbol() { }
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/** Line stroking parameters */
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optional<Stroke>& stroke() { return _stroke; }
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const optional<Stroke>& stroke() const { return _stroke; }
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/** Tessellate the line geometry such that no segment is longer than this value */
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optional<Distance>& tessellationSize() { return _tessellationSize; }
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const optional<Distance>& tessellationSize() const { return _tessellationSize; }
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/** Tessellate the line geometry such that each source segment is divided into this many parts. */
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optional<unsigned>& tessellation() { return _tessellation; }
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const optional<unsigned>& tessellation() const { return _tessellation; }
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/** Minimum angle (deg) for which to create creases where applicable (like when outlining) */
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optional<float>& creaseAngle() { return _creaseAngle; }
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const optional<float>& creaseAngle() const { return _creaseAngle; }
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/** URI of an image to load and use to texture lines */
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optional<StringExpression>& imageURI() { return _imageURI; }
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const optional<StringExpression>& imageURI() const { return _imageURI; }
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//! Length of the image (y dimension) in meters
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optional<float>& imageLength() { return _imageLength; }
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const optional<float>& imageLength() const { return _imageLength; }
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//! Whether to force the use of legacy OpenGL lines (default=false)
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//! instead of the GPU-based lines that are required by GLCORE/GLES
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optional<bool>& useGLLines() { return _useGLLines; }
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const optional<bool>& useGLLines() const { return _useGLLines; }
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/** 3D line as a wire. */
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optional<bool>& useWireLines() { return _useWireLines; }
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const optional<bool>& useWireLines() const { return _useWireLines; }
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public:
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virtual Config getConfig() const;
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virtual void mergeConfig( const Config& conf );
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static void parseSLD(const Config& c, class Style& style);
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protected:
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optional<Stroke> _stroke;
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optional<unsigned> _tessellation;
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optional<float> _creaseAngle;
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optional<Distance> _tessellationSize;
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optional<StringExpression> _imageURI;
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optional<float> _imageLength;
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optional<bool> _useGLLines;
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optional<bool> _useWireLines;
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};
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} // namespace osgEarth
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#endif // OSGEARTHSYMBOLOGY_LINE_SYMBOL_H
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