OpenSceneGraph 3.6.5
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1D variant of TransferFunction. More...
#include <TransferFunction>
Public Types | |
typedef std::map< float, osg::Vec4 > | ColorMap |
Public Types inherited from osg::Object | |
enum | DataVariance { DYNAMIC , STATIC , UNSPECIFIED } |
Public Member Functions | |
TransferFunction1D () | |
TransferFunction1D (const TransferFunction1D &tf, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
Copy constructor using CopyOp to manage deep vs shallow copy. | |
META_Object (osg, TransferFunction1D) float getMinimum() const | |
Get the minimum transfer function value. | |
float | getMaximum () const |
Get the maximum transfer function value. | |
void | allocate (unsigned int numImageCells) |
allocate the osg::Image with specified dimension. | |
void | clear (const osg::Vec4 &color=osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f)) |
Clear the whole range to just represent a single color. | |
osg::Vec4 | getPixelValue (unsigned int i) const |
Get pixel value from the image. | |
unsigned int | getNumberImageCells () const |
Get the number of image cells that are assigned to the represent the transfer function when download to the GPU. | |
void | setColor (float v, const osg::Vec4 &color, bool updateImage=true) |
Set the color for a specified transfer function value. | |
osg::Vec4 | getColor (float v) const |
Get the color for a specified transfer function value, interpolating the value if no exact match is found. | |
void | setColorMap (const ColorMap &vcm) |
set the color map and automatically update the image to make sure they are in sync. | |
ColorMap & | getColorMap () |
Get the color map that stores the mapping between the transfer function value and the colour it maps to. | |
const ColorMap & | getColorMap () const |
Get the const color map that stores the mapping between the transfer function value and the colour it maps to. | |
void | assign (const ColorMap &vcm) |
Assign a color map and automatically update the image to make sure they are in sync. | |
void | updateImage () |
Manually update the associate osg::Image to represent the colors assigned in the color map. | |
Public Member Functions inherited from osg::TransferFunction | |
TransferFunction () | |
TransferFunction (const TransferFunction &tf, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
Copy constructor using CopyOp to manage deep vs shallow copy. | |
META_Object (osg, TransferFunction) osg | |
Get the image that is used for passing the transfer function data to the GPU. | |
const osg::Image * | getImage () const |
Get the const image that is used for passing the transfer function data to the GPU. | |
Public Member Functions inherited from osg::Object | |
Object () | |
Construct an object. | |
Object (bool threadSafeRefUnref) | |
Object (const Object &, const CopyOp ©op=CopyOp::SHALLOW_COPY) | |
Copy constructor, optional CopyOp object can be used to control shallow vs deep copying of dynamic data. | |
virtual Object * | cloneType () const =0 |
Clone the type of an object, with Object* return type. | |
virtual Object * | clone (const CopyOp &) const =0 |
Clone an object, with Object* return type. | |
virtual bool | isSameKindAs (const Object *) const |
virtual const char * | libraryName () const =0 |
return the name of the object's library. | |
virtual const char * | className () const =0 |
return the name of the object's class type. | |
std::string | getCompoundClassName () const |
return the compound class name that combines the library name and class name. | |
virtual Node * | asNode () |
Convert 'this' into a Node pointer if Object is a Node, otherwise return 0. | |
virtual const Node * | asNode () const |
convert 'const this' into a const Node pointer if Object is a Node, otherwise return 0. | |
virtual NodeVisitor * | asNodeVisitor () |
Convert 'this' into a NodeVisitor pointer if Object is a NodeVisitor, otherwise return 0. | |
virtual const NodeVisitor * | asNodeVisitor () const |
convert 'const this' into a const NodeVisitor pointer if Object is a NodeVisitor, otherwise return 0. | |
virtual StateSet * | asStateSet () |
Convert 'this' into a StateSet pointer if Object is a StateSet, otherwise return 0. | |
virtual const StateSet * | asStateSet () const |
convert 'const this' into a const StateSet pointer if Object is a StateSet, otherwise return 0. | |
virtual StateAttribute * | asStateAttribute () |
Convert 'this' into a StateAttribute pointer if Object is a StateAttribute, otherwise return 0. | |
virtual const StateAttribute * | asStateAttribute () const |
convert 'const this' into a const StateAttribute pointer if Object is a StateAttribute, otherwise return 0. | |
virtual Uniform * | asUniform () |
Convert 'this' into a Uniform pointer if Object is a Uniform, otherwise return 0. | |
virtual const Uniform * | asUniform () const |
convert 'const this' into a const Uniform pointer if Object is a Uniform, otherwise return 0. | |
virtual Camera * | asCamera () |
Convert 'this' into a Camera pointer if Node is a Camera, otherwise return 0. | |
virtual const Camera * | asCamera () const |
convert 'const this' into a const Camera pointer if Node is a Camera, otherwise return 0. | |
virtual Drawable * | asDrawable () |
Convert 'this' into a Drawable pointer if Object is a Drawable, otherwise return 0. | |
virtual const Drawable * | asDrawable () const |
convert 'const this' into a const Drawable pointer if Object is a Drawable, otherwise return 0. | |
virtual Callback * | asCallback () |
Convert 'this' into a Callback pointer if Object is a Callback, otherwise return 0. | |
virtual const Callback * | asCallback () const |
convert 'const this' into a const Callback pointer if Object is a Callback, otherwise return 0. | |
virtual CallbackObject * | asCallbackObject () |
Convert 'this' into a CallbackObject pointer if Object is a CallbackObject, otherwise return 0. | |
virtual const CallbackObject * | asCallbackObject () const |
convert 'const this' into a const CallbackObject pointer if Object is a CallbackObject, otherwise return 0. | |
virtual UserDataContainer * | asUserDataContainer () |
Convert 'this' into a UserDataContainer pointer if Object is a UserDataContainer, otherwise return 0. | |
virtual const UserDataContainer * | asUserDataContainer () const |
convert 'const this' into a const UserDataContainer pointer if Object is a UserDataContainer, otherwise return 0. | |
virtual ValueObject * | asValueObject () |
Convert 'this' into a ValueObject pointer if Object is a ValueObject, otherwise return 0. | |
virtual const ValueObject * | asValueObject () const |
Convert 'this' into a ValueObject pointer if Object is a ValueObject, otherwise return 0. | |
virtual Image * | asImage () |
Convert 'this' into a Image pointer if Object is a Image, otherwise return 0. | |
virtual const Image * | asImage () const |
Convert 'this' into a Image pointer if Object is a Image, otherwise return 0. | |
virtual void | setThreadSafeRefUnref (bool threadSafe) |
Set whether to use a mutex to ensure ref() and unref() are thread safe. | |
virtual void | setName (const std::string &name) |
Set the name of object using C++ style string. | |
void | setName (const char *name) |
Set the name of object using a C style string. | |
const std::string & | getName () const |
Get the name of object. | |
void | setDataVariance (DataVariance dv) |
Set the data variance of this object. | |
DataVariance | getDataVariance () const |
Get the data variance of this object. | |
virtual void | computeDataVariance () |
Compute the DataVariance based on an assessment of callback etc. | |
void | setUserDataContainer (osg::UserDataContainer *udc) |
set the UserDataContainer object. | |
template<class T> | |
void | setUserDataContainer (const ref_ptr< T > &udc) |
osg::UserDataContainer * | getUserDataContainer () |
get the UserDataContainer attached to this object. | |
const osg::UserDataContainer * | getUserDataContainer () const |
get the const UserDataContainer attached to this object. | |
osg::UserDataContainer * | getOrCreateUserDataContainer () |
Convenience method that returns the UserDataContainer, and if one doesn't already exist creates and assigns a DefaultUserDataContainer to the Object and then return this new UserDataContainer. | |
virtual void | setUserData (Referenced *obj) |
Set user data, data must be subclassed from Referenced to allow automatic memory handling. | |
template<class T> | |
void | setUserData (const ref_ptr< T > &ud) |
virtual Referenced * | getUserData () |
Get user data. | |
virtual const Referenced * | getUserData () const |
Get const user data. | |
template<typename T> | |
bool | getUserValue (const std::string &name, T &value) const |
Convenience method that casts the named UserObject to osg::TemplateValueObject<T> and gets the value. | |
template<typename T> | |
void | setUserValue (const std::string &name, const T &value) |
Convenience method that creates the osg::TemplateValueObject<T> to store the specified value and adds it as a named UserObject. | |
virtual void | resizeGLObjectBuffers (unsigned int) |
Resize any per context GLObject buffers to specified size. | |
virtual void | releaseGLObjects (osg::State *=0) const |
If State is non-zero, this function releases any associated OpenGL objects for the specified graphics context. | |
template<typename T> | |
BoolValueObject UCharValueObject UShortValueObject UIntValueObject DoubleValueObject Vec3fValueObject Vec2dValueObject Vec4dValueObject PlaneValueObject MatrixdValueObject BoundingBoxdValueObject BoundingSpheredValueObject bool | getUserValue (const std::string &name, T &value) const |
provide implementation of osg::Object::getUserValue(..) template | |
Public Member Functions inherited from osg::Referenced | |
Referenced () | |
Referenced (bool threadSafeRefUnref) | |
Deprecated, Referenced is now always uses thread safe ref/unref, use default Referenced() constructor instead. | |
Referenced (const Referenced &) | |
Referenced & | operator= (const Referenced &) |
bool | getThreadSafeRefUnref () const |
Get whether a mutex is used to ensure ref() and unref() are thread safe. | |
OpenThreads::Mutex * | getRefMutex () const |
Get the mutex used to ensure thread safety of ref()/unref(). | |
int | ref () const |
Increment the reference count by one, indicating that this object has another pointer which is referencing it. | |
int | unref () const |
Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. | |
int | unref_nodelete () const |
Decrement the reference count by one, indicating that a pointer to this object is no longer referencing it. | |
int | referenceCount () const |
Return the number of pointers currently referencing this object. | |
ObserverSet * | getObserverSet () const |
Get the ObserverSet if one is attached, otherwise return NULL. | |
ObserverSet * | getOrCreateObserverSet () const |
Get the ObserverSet if one is attached, otherwise create an ObserverSet, attach it, then return this newly created ObserverSet. | |
void | addObserver (Observer *observer) const |
Add a Observer that is observing this object, notify the Observer when this object gets deleted. | |
void | removeObserver (Observer *observer) const |
Remove Observer that is observing this object. |
Protected Member Functions | |
void | assignToImage (float lower_v, const osg::Vec4 &lower_c, float upper_v, const osg::Vec4 &upper_c) |
Protected Member Functions inherited from osg::TransferFunction | |
virtual | ~TransferFunction () |
Protected Member Functions inherited from osg::Object | |
virtual | ~Object () |
Object destructor. | |
Protected Member Functions inherited from osg::Referenced | |
virtual | ~Referenced () |
void | signalObserversAndDelete (bool signalDelete, bool doDelete) const |
void | deleteUsingDeleteHandler () const |
Protected Attributes | |
ColorMap | _colorMap |
Protected Attributes inherited from osg::TransferFunction | |
osg::ref_ptr< osg::Image > | _image |
Protected Attributes inherited from osg::Object | |
std::string | _name |
DataVariance | _dataVariance |
osg::UserDataContainer * | _userDataContainer |
Protected Attributes inherited from osg::Referenced | |
OpenThreads::AtomicPtr | _observerSet |
OpenThreads::Atomic | _refCount |
Additional Inherited Members | |
Static Public Member Functions inherited from osg::Referenced | |
static OpenThreads::Mutex * | getGlobalReferencedMutex () |
Get the optional global Referenced mutex, this can be shared between all osg::Referenced. | |
static void | setDeleteHandler (DeleteHandler *handler) |
Set a DeleteHandler to which deletion of all referenced counted objects will be delegated. | |
static DeleteHandler * | getDeleteHandler () |
Get a DeleteHandler. |
1D variant of TransferFunction.
typedef std::map<float, osg::Vec4> osg::TransferFunction1D::ColorMap |
osg::TransferFunction1D::TransferFunction1D | ( | ) |
Referenced by META_Object(), and TransferFunction1D().
osg::TransferFunction1D::TransferFunction1D | ( | const TransferFunction1D & | tf, |
const CopyOp & | copyop = CopyOp::SHALLOW_COPY ) |
Copy constructor using CopyOp to manage deep vs shallow copy.
References osg::CopyOp::SHALLOW_COPY, and TransferFunction1D().
void osg::TransferFunction1D::allocate | ( | unsigned int | numImageCells | ) |
allocate the osg::Image with specified dimension.
The Image tracks the color map, and is used to represent the transfer function when download to GPU.
void osg::TransferFunction1D::assign | ( | const ColorMap & | vcm | ) |
Assign a color map and automatically update the image to make sure they are in sync.
Referenced by setColorMap().
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protected |
Clear the whole range to just represent a single color.
osg::Vec4 osg::TransferFunction1D::getColor | ( | float | v | ) | const |
Get the color for a specified transfer function value, interpolating the value if no exact match is found.
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Get the color map that stores the mapping between the transfer function value and the colour it maps to.
References _colorMap.
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Get the const color map that stores the mapping between the transfer function value and the colour it maps to.
References _colorMap.
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Get the maximum transfer function value.
References _colorMap.
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Get the number of image cells that are assigned to the represent the transfer function when download to the GPU.
References osg::TransferFunction::_image.
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Get pixel value from the image.
References osg::TransferFunction::_image.
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Get the minimum transfer function value.
References _colorMap, and TransferFunction1D().
void osg::TransferFunction1D::setColor | ( | float | v, |
const osg::Vec4 & | color, | ||
bool | updateImage = true ) |
Set the color for a specified transfer function value.
updateImage defaults to true, and tells the setColor function to update the associate osg::Image that tracks the color map. Pass in false as the updateImage parameter if you are setting up many values at once to avoid recomputation of the image data, then once all setColor calls are made explicitly call updateImage() to bring the osg::Image back into sync with the color map.
References updateImage().
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set the color map and automatically update the image to make sure they are in sync.
References assign().
void osg::TransferFunction1D::updateImage | ( | ) |
Manually update the associate osg::Image to represent the colors assigned in the color map.
Referenced by setColor().
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protected |
Referenced by getColorMap(), getColorMap(), getMaximum(), and META_Object().
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