libosgearth-dev 2.9.0+dfsg-1 / usr / include / osgEarthAnnotation / CircleNode

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/* -*-c++-*- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
* Copyright 2016 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* 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 OSGEARTH_ANNOTATION_CIRCLE_NODE_H
#define OSGEARTH_ANNOTATION_CIRCLE_NODE_H 1

#include <osgEarthAnnotation/LocalGeometryNode>
#include <osgEarthSymbology/Style>
#include <osgEarth/MapNode>
#include <osgEarth/Units>

namespace osgEarth { namespace Annotation
{	
    using namespace osgEarth;
    using namespace osgEarth::Symbology;

    /**
     * Circle annotation.
     */
    class OSGEARTHANNO_EXPORT CircleNode : public LocalGeometryNode
    {
    public:
        META_AnnotationNode( osgEarthAnnotation, CircleNode );

        /**
         * Constructs a new circle annotation.
         *
         * @param mapNode     Map on which the circle will appear
         * @param position    Location of the annotation, in map coordinates
         * @param radius      Circle radius
         * @param style       Style defining how the annotation will look
         * @param arcStart    Optional start of arc (default to 0.0 degrees)
         * @param arcStop     Optional end of arc (default to 360.0 degrees)
         * @param pie         Optionally make pie shape instead of arc
         */
        CircleNode(
            MapNode*          mapNode,
            const GeoPoint&   position,
            const Distance&   radius,
            const Style&      style,
            const Angle&      arcStart = Angle(0.0, Units::DEGREES),
            const Angle&      arcEnd = Angle(360.0, Units::DEGREES),
            const bool        pie = false);

        /**
         * Constructs a circle node from its serialized form
         */
        CircleNode(
            MapNode*              mapNode,
            const Config&         conf,
            const osgDB::Options* dbOptions);


        virtual ~CircleNode() { }


        /**
         * Gets the radius
         */
        const Distance& getRadius() const;

        /*
         * Sets the radius of the circle
         */
        void setRadius(const Distance& radius);

        /**
         * Gets the number of segments of this circle
         */
        unsigned int getNumSegments() const;

        /**
         * Sets the number of segments of this circle
         */
        void setNumSegments(unsigned int numSegments );

        /**
         * Gets the start degrees of this (arc) circle
         */
        const Angle& getArcStart(void) const;

        /**
         * Sets the start degrees of this (arc) circle
         */
        void setArcStart(const Angle& arcStart);

        /**
         * Gets the end degrees of this (arc) circle
         */
        const Angle& getArcEnd(void) const;

        /**
         * Sets the end degrees of this (arc) circle
         */
        void setArcEnd(const Angle& arcEnd);

        /**
         * Gets the pie flag
         */
        const bool& getPie(void) const;

        /**
         * Sets the pie flag
         */
        void setPie(const bool& pie);


    public: // AnnotationNode overrides

        virtual Config getConfig() const;


    private:
        CircleNode() { }
        CircleNode(const CircleNode& rhs, const osg::CopyOp& op) { }

        void rebuildGeometry();

        void initCircleNode();

        unsigned       _numSegments;
        Distance       _radius;
        Angle          _arcStart;
        Angle          _arcEnd;
        bool           _pie;
    };

} } // namespace osgEarth::Annotation

#endif // OSGEARTH_ANNOTATION_CIRCLE_NODE_H

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