/usr/include/osgVolume/Locator is in libopenscenegraph-3.4-dev 3.4.1+dfsg1-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | /* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2009 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library 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
* OpenSceneGraph Public License for more details.
*/
#ifndef OSGVOLUME_LOCATOR
#define OSGVOLUME_LOCATOR 1
#include <osgVolume/Export>
#include <osg/Object>
#include <osg/observer_ptr>
#include <osg/Matrixd>
#include <osg/TexGen>
#include <osg/MatrixTransform>
#include <vector>
namespace osgVolume {
class OSGVOLUME_EXPORT Locator : public osg::Object
{
public:
Locator() {}
Locator(const osg::Matrixd& transform) { setTransform(transform); }
/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
Locator(const Locator& locator,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY):
osg::Object(locator, copyop),
_transform(locator._transform) {}
META_Object(osgVolume, Locator);
/** Set the transformation from local coordinates to model coordinates.*/
void setTransform(const osg::Matrixd& transform) { _transform = transform; _inverse.invert(_transform); locatorModified(); }
/** Set the transformation from local coordinates to model coordinates.*/
const osg::Matrixd& getTransform() const { return _transform; }
/** Set the extents of the local coords.*/
void setTransformAsExtents(double minX, double minY, double maxX, double maxY, double minZ, double maxZ);
virtual bool convertLocalToModel(const osg::Vec3d& /*local*/, osg::Vec3d& /*world*/) const;
virtual bool convertModelToLocal(const osg::Vec3d& /*world*/, osg::Vec3d& /*local*/) const;
static bool convertLocalCoordBetween(const Locator& source, const osg::Vec3d& sourceNDC,
const Locator& destination, osg::Vec3d& destinationNDC)
{
osg::Vec3d model;
if (!source.convertLocalToModel(sourceNDC, model)) return false;
if (!destination.convertModelToLocal(model, destinationNDC)) return false;
return true;
}
bool computeLocalBounds(osg::Vec3d& bottomLeft, osg::Vec3d& topRight) const;
bool computeLocalBounds(Locator& source, osg::Vec3d& bottomLeft, osg::Vec3d& topRight) const;
/** Return true if the axis of the Locator are inverted requiring the faces of any cubes used from rendering to be flipped to ensure the correct front/back face is used.*/
bool inverted() const;
/** apply the appropriate FrontFace setting to provided StateSet to ensure that the rendering of hull of the volume is the correct orientation.*/
void applyAppropriateFrontFace(osg::StateSet* ss) const;
/** Callback interface for enabling the monitoring of changes to the Locator.*/
class LocatorCallback : virtual public osg::Object
{
public:
LocatorCallback() {}
LocatorCallback(const LocatorCallback& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY): osg::Object(rhs,copyop) {}
META_Object(osgVolume, LocatorCallback);
virtual void locatorModified(Locator* /*locator*/) {};
protected:
virtual ~LocatorCallback() {}
};
void addCallback(LocatorCallback* callback);
template<class T> void addCallback(const osg::ref_ptr<T>& callback) { addCallback(callback.get()); }
void removeCallback(LocatorCallback* callback);
typedef std::vector< osg::ref_ptr<LocatorCallback> > LocatorCallbacks;
LocatorCallbacks& getLocatorCallbacks() { return _locatorCallbacks; }
const LocatorCallbacks& getLocatorCallbacks() const { return _locatorCallbacks; }
protected:
void locatorModified();
osg::Matrixd _transform;
osg::Matrixd _inverse;
LocatorCallbacks _locatorCallbacks;
};
class OSGVOLUME_EXPORT TransformLocatorCallback : public Locator::LocatorCallback
{
public:
TransformLocatorCallback(osg::MatrixTransform* transform);
void locatorModified(Locator* locator);
protected:
osg::observer_ptr<osg::MatrixTransform> _transform;
};
class OSGVOLUME_EXPORT TexGenLocatorCallback : public Locator::LocatorCallback
{
public:
TexGenLocatorCallback(osg::TexGen* texgen, Locator* geometryLocator, Locator* imageLocator);
void locatorModified(Locator*);
protected:
osg::observer_ptr<osg::TexGen> _texgen;
osg::observer_ptr<osgVolume::Locator> _geometryLocator;
osg::observer_ptr<osgVolume::Locator> _imageLocator;
};
}
#endif
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