Introduced osgVolume::Layer and Locator classes mirrroring similar classes in osgTerrain.
This commit is contained in:
Robert Osfield
@@ -44,7 +44,7 @@ class BoundingSphereImpl
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BoundingSphereImpl() : _center(0.0,0.0,0.0),_radius(-1.0) {}
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/** Creates a bounding sphere initialized to the given extents. */
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BoundingSphereImpl(const vec_type& center,value_type radius) : _center(center),_radius(radius) {}
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BoundingSphereImpl(const vec_type& center, value_type radius) : _center(center),_radius(radius) {}
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/** Creates a bounding sphere initialized to the given extents. */
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BoundingSphereImpl(const BoundingSphereImpl& bs) : _center(bs._center),_radius(bs._radius) {}
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@@ -101,7 +101,7 @@ class OSGTERRAIN_EXPORT Locator : public osg::Object
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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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bool computeLocalBounds(Locator& source, osg::Vec3d& bottomLeft, osg::Vec3d& topRight) const;
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void setDefinedInFile(bool flag) { _definedInFile = flag; }
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bool getDefinedInFile() const { return _definedInFile; }
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202
include/osgVolume/Layer
Normal file
202
include/osgVolume/Layer
Normal file
@@ -0,0 +1,202 @@
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/* -*-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 OSGVOLUME_LAYER
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#define OSGVOLUME_LAYER 1
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#include <osg/Object>
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#include <osg/Image>
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#include <osg/Shape>
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#include <osg/Array>
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#include <osg/TransferFunction>
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#include <osgVolume/Locator>
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namespace osgVolume {
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class OSGVOLUME_EXPORT Layer : public osg::Object
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{
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public:
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Layer();
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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Layer(const Layer&,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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META_Object(osgVolume, Layer);
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/** Set the file name of the data associated with this layer. */
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virtual void setFileName(const std::string& filename) { _filename = filename; }
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/** Get the file name of the layer. */
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virtual const std::string& getFileName() const { return _filename; }
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void setLocator(Locator* locator) { _locator = locator; }
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Locator* getLocator() { return _locator.get(); }
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const Locator* getLocator() const { return _locator.get(); }
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void setDefaultValue(const osg::Vec4& value) { _defaultValue = value; }
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const osg::Vec4& getDefaultValue() const { return _defaultValue; }
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/** Set the minification texture filter to use when do texture associated with this layer.*/
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void setMinFilter(osg::Texture::FilterMode filter) { _minFilter = filter; }
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/** Get the minification texture filter to use when do texture associated with this layer.*/
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osg::Texture::FilterMode getMinFilter() const { return _minFilter; }
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/** Set the magniification texture filter to use when do texture associated with this layer.*/
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void setMagFilter(osg::Texture::FilterMode filter) { _magFilter = filter; }
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/** Get the magnification texture filter to use when do texture associated with this layer.*/
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osg::Texture::FilterMode getMagFilter() const { return _magFilter; }
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/** Return image associated with layer if supported. */
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virtual osg::Image* getImage() { return 0; }
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/** Return const image associated with layer if supported. */
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virtual const osg::Image* getImage() const { return 0; }
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/** Set the optional transfer function that maps the imagery pixels to new colours.
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* Transfer function may be implemented on the GPU or via pre-processing step. */
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void setTransferFunction(osg::TransferFunction* tf) { _transferFunction = tf; }
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/** Get the transfer function.*/
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osg::TransferFunction* getTransferFunction() { return _transferFunction.get(); }
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/** Get the const transfer function.*/
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const osg::TransferFunction* getTransferFunction() const { return _transferFunction.get(); }
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/** increment the modified count."*/
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virtual void dirty() {};
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/** Set the modified count value. */
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virtual void setModifiedCount(unsigned int /*value*/) {};
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/** Get modified count value. */
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virtual unsigned int getModifiedCount() const { return 0; }
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virtual osg::BoundingSphere computeBound() const;
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protected:
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virtual ~Layer();
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std::string _filename;
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osg::ref_ptr<Locator> _locator;
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osg::Vec4 _defaultValue;
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osg::Texture::FilterMode _minFilter;
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osg::Texture::FilterMode _magFilter;
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osg::ref_ptr<osg::TransferFunction> _transferFunction;
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};
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class OSGVOLUME_EXPORT ImageLayer : public Layer
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{
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public:
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ImageLayer(osg::Image* image=0);
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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ImageLayer(const ImageLayer& imageLayer,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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META_Object(osgVolume, ImageLayer);
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void setFileName(const std::string& filename) { _filename = filename; if (_image.valid()) _image->setFileName(filename); }
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virtual const std::string& getFileName() const { return _image.get() ? _image->getFileName() : _filename; }
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void setImage(osg::Image* image);
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/** Return image associated with layer. */
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virtual osg::Image* getImage() { return _image.get(); }
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/** Return const image associated with layer. */
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virtual const osg::Image* getImage() const { return _image.get(); }
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virtual void dirty();
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virtual void setModifiedCount(unsigned int value);
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virtual unsigned int getModifiedCount() const;
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protected:
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virtual ~ImageLayer() {}
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osg::ref_ptr<osg::Image> _image;
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};
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class OSGVOLUME_EXPORT CompositeLayer : public Layer
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{
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public:
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CompositeLayer();
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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CompositeLayer(const CompositeLayer& compositeLayer,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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META_Object(osgVolume, CompositeLayer);
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void clear();
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void setFileName(unsigned int i, const std::string& filename) { _layers[i].filename = filename; if (_layers[i].layer.valid()) _layers[i].layer->setFileName(filename); }
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const std::string& getFileName(unsigned int i) const { return _layers[i].layer.valid() ? _layers[i].layer->getFileName() : _layers[i].filename; }
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void setLayer(unsigned int i, Layer* layer) { if (i>=_layers.size()) _layers.resize(i+1); _layers[i].layer = layer; }
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Layer* getLayer(unsigned int i) { return i<_layers.size() ? _layers[i].layer.get() : 0; }
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const Layer* getLayer(unsigned int i) const { return i<_layers.size() ? _layers[i].layer.get() : 0; }
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void addLayer(Layer* layer) { _layers.push_back(NameLayer(layer->getFileName(),layer)); }
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void removeLayer(unsigned int i) { _layers.erase(_layers.begin()+i); }
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unsigned int getNumLayers() const { return _layers.size(); }
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protected:
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virtual ~CompositeLayer() {}
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struct NameLayer
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{
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NameLayer() {}
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NameLayer(const NameLayer& cnl):
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filename(cnl.filename),
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layer(cnl.layer) {}
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NameLayer(const std::string& fn, Layer* l):
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filename(fn),
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layer(l) {}
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NameLayer& operator = (const NameLayer& cnl)
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{
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if (&cnl==this) return *this;
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filename = cnl.filename;
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layer = cnl.layer;
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return *this;
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}
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std::string filename;
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osg::ref_ptr<Layer> layer;
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};
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typedef std::vector< NameLayer > Layers;
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Layers _layers;
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};
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}
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#endif
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70
include/osgVolume/Locator
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70
include/osgVolume/Locator
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@@ -0,0 +1,70 @@
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/* -*-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 OSGVOLUME_LOCATOR
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#define OSGVOLUME_LOCATOR 1
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#include <osgVolume/Export>
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#include <osg/Object>
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#include <osg/Matrixd>
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namespace osgVolume {
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class OSGVOLUME_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& locator,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY):
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_transform(locator._transform) {}
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META_Object(osgVolume, Locator);
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/** Set the transformation from local coordinates to model coordinates.*/
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void setTransform(const osg::Matrixd& transform) { _transform = transform; _inverse.invert(_transform); }
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/** Set the transformation from local coordinates to model coordinates.*/
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const osg::Matrixd& getTransform() const { return _transform; }
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/** Set the extents of the local coords.*/
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void setTransformAsExtents(double minX, double minY, double maxX, double maxY, double minZ, double maxZ);
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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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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(osg::Vec3d& bottomLeft, osg::Vec3d& topRight) const;
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bool computeLocalBounds(Locator& source, osg::Vec3d& bottomLeft, osg::Vec3d& topRight) const;
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protected:
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osg::Matrixd _transform;
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osg::Matrixd _inverse;
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};
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}
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#endif
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