133 lines
4.6 KiB
C++
133 lines
4.6 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library 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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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGTERRAIN_LOCATOR
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#define OSGTERRAIN_LOCATOR 1
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#include <osg/Object>
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#include <osg/Vec3d>
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#include <osg/CoordinateSystemNode>
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#include <osgTerrain/Export>
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namespace osgTerrain {
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class OSGTERRAIN_EXPORT Locator : public osg::Object
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{
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public:
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Locator();
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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Locator(const Locator&,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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META_Object(osgTerrain, Locator);
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virtual bool orientationOpenGL() const { return true; }
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virtual bool convertLocalToModel(const osg::Vec3d& /*local*/, osg::Vec3d& /*world*/) const { return false; }
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virtual bool convertModelToLocal(const osg::Vec3d& /*world*/, osg::Vec3d& /*local*/) const { return false; }
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static bool convertLocalCoordBetween(const Locator& source, const osg::Vec3d& sourceNDC,
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const Locator& destination, osg::Vec3d& destinationNDC)
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{
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osg::Vec3d model;
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if (!source.convertLocalToModel(sourceNDC, model)) return false;
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if (!destination.convertModelToLocal(model, destinationNDC)) return false;
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return true;
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}
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bool computeLocalBounds(Locator& source, osg::Vec3d& bottomLeft, osg::Vec3d& topRight);
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protected:
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virtual ~Locator();
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};
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class OSGTERRAIN_EXPORT EllipsoidLocator : public osgTerrain::Locator
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{
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public:
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EllipsoidLocator(double longitude, double latitude, double deltaLongitude, double deltaLatitude, double height=0.0, double heightScale = 1.0f, double radiusEquator = osg::WGS_84_RADIUS_EQUATOR, double radiusPolar = osg::WGS_84_RADIUS_POLAR);
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void setExtents(double longitude, double latitude, double deltaLongitude, double deltaLatitude, double height=0.0, double heightScale = 1.0f);
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double getLongitude() const { return _longitude; }
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double getDeltaLongitude() const { return _deltaLongitude; }
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double getLatitude() const { return _latitude; }
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double getDeltaLatitude() const { return _deltaLatitude; }
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double getHeight() const { return _height; }
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void setEllipsoidModel(osg::EllipsoidModel* em) { _em=em; }
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osg::EllipsoidModel* getEllipsoidModel() { return _em.get(); }
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const osg::EllipsoidModel* getEllipsoidModel() const { return _em.get(); }
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virtual bool orientationOpenGL() const;
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virtual bool convertLocalToModel(const osg::Vec3d& local, osg::Vec3d& world) const;
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virtual bool convertModelToLocal(const osg::Vec3d& world, osg::Vec3d& local) const;
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protected:
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osg::ref_ptr<osg::EllipsoidModel> _em;
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double _longitude;
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double _latitude;
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double _deltaLongitude;
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double _deltaLatitude;
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double _height;
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double _heightScale;
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};
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class OSGTERRAIN_EXPORT CartesianLocator : public osgTerrain::Locator
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{
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public:
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CartesianLocator(double originX, double originY, double lengthX, double lengthY, double height = 0.0f, double heightScale = 1.0f);
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void setExtents(double originX, double originY, double lengthX, double lengthY, double height = 0.0f, double heightScale = 1.0f);
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void setOriginX(double x) { _originX = x; }
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double getOriginX() const { return _originX; }
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void setOriginY(double y) { _originY = y; }
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double getOriginY() const { return _originY; }
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void setLengthX(double x) { _lengthX = x; }
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double getLengthX() const { return _lengthX; }
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void setLengthY(double y) { _lengthY = y; }
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double getLengthY() const { return _lengthY; }
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virtual bool orientationOpenGL() const;
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virtual bool convertLocalToModel(const osg::Vec3d& local, osg::Vec3d& world) const;
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virtual bool convertModelToLocal(const osg::Vec3d& world, osg::Vec3d& local) const;
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protected:
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double _originX;
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double _originY;
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double _lengthX;
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double _lengthY;
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double _height;
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double _heightScale;
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};
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}
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#endif
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