Field3D
WritableField< Data_T >::iterator Class Referenceabstract

#include <Field.h>

Inheritance diagram for WritableField< Data_T >::iterator:
Field< Data_T > FieldRes FieldBase RefBase MetadataCallback

Public Types

typedef WritableField< Data_T > class_type
 
typedef boost::intrusive_ptr< WritableFieldPtr
 
- Public Types inherited from Field< Data_T >
typedef Field< Data_T > class_type
 
typedef boost::intrusive_ptr< FieldPtr
 
typedef Data_T value_type
 Allows us to reference the template class.
 
typedef std::vector< PtrVec
 This is a convenience typedef for the list that Field3DInputFile::readScalarLayers() and Field3DInputFile::readVectorLayers() will return its data in.
 
- Public Types inherited from FieldRes
typedef FieldRes class_type
 
typedef boost::intrusive_ptr< FieldResPtr
 
typedef std::vector< PtrVec
 
- Public Types inherited from FieldBase
typedef FieldBase class_type
 
typedef boost::intrusive_ptr< FieldBasePtr
 
- Public Types inherited from RefBase
typedef boost::intrusive_ptr< RefBasePtr
 
typedef boost::weak_ptr< RefBaseWeakPtr
 

Public Member Functions

iterator begin ()
 Iterator to first element.
 
iterator begin (const Box3i &subset)
 Iterator to first element of specific subset.
 
virtual void clear (const Data_T &value)
 Clears all the voxels in the storage. Should be re-implemented by subclasses that can provide a more efficient version.
 
iterator end ()
 Iterator pointing one element past the last valid one.
 
iterator end (const Box3i &subset)
 Iterator pointing one element past the last valid one (for a subset)
 
 iterator (WritableField< Data_T > &field, const Box3i &window, const V3i &currentPos)
 
virtual Data_T & lvalue (int i, int j, int k)=0
 Write access to a voxel. The coordinates are global coordinates.
 
template<class Iter_T>
bool operator!= (const Iter_T &rhs) const
 
Data_T & operator* () const
 
const iteratoroperator++ ()
 
template<class Iter_T>
bool operator== (const Iter_T &rhs) const
 
- Public Member Functions inherited from Field< Data_T >
const_iterator cbegin () const
 Const iterator to first element. "cbegin" matches the tr1 c++ standard.
 
const_iterator cbegin (const Box3i &subset) const
 Const iterator to first element of specific subset.
 
const_iterator cend () const
 Const iterator pointing one element past the last valid one.
 
const_iterator cend (const Box3i &subset) const
 Const iterator pointing one element past the last valid one (for a subset)
 
virtual std::string dataTypeString () const
 
virtual Data_T value (int i, int j, int k) const =0
 Read access to a voxel. The coordinates are in integer voxel space .
 
virtual ~Field ()
 Dtor.
 
- Public Member Functions inherited from FieldRes
V3i const dataResolution () const
 
const Box3idataWindow () const
 Returns the data window. Any coordinate inside this window is safe to pass to value() in the Field subclass.
 
const Box3iextents () const
 Returns the extents of the data. This signifies the relevant area that the data exists over. However, the data window (below) may be smaller than the extents, in which case it is only safe to call value() for those coordinate inside the data window.
 
 FieldRes ()
 This constructor ensures that we have a valid mapping at all times.
 
 FieldRes (const FieldRes &src)
 Base class copy constructor.
 
bool isInBounds (int i, int j, int k) const
 Returns true is the indicies are in bounds of the data window.
 
FieldMapping::Ptr mapping ()
 Returns a pointer to the mapping.
 
const FieldMapping::Ptr mapping () const
 Returns a pointer to the mapping.
 
virtual void mappingChanged ()
 Tells the subclass that the mapping changed.
 
virtual long long int memSize () const
 Returns the memory usage (in bytes)
 
void setMapping (FieldMapping::Ptr mapping)
 Sets the field's mapping.
 
virtual size_t voxelCount () const
 Counts the number of voxels. For most fields, this is just the volume of the data window, but sparse data structures can override this to return a better value.
 
- Public Member Functions inherited from FieldBase
 FieldBase ()
 Constructor.
 
 FieldBase (const FieldBase &)
 Copy Constructor.
 
virtual ~FieldBase ()
 Destructor.
 
virtual std::string className () const =0
 Returns the class name of the object. Used by the class pool and when writing the data to disk.
 
virtual std::string classType () const =0
 Returns the full class type string.
 
virtual Ptr clone () const =0
 Returns a pointer to a copy of the field, pure virtual so ensure derived classes properly implement it.
 
FieldMetadatametadata ()
 accessor to the m_metadata class
 
const FieldMetadatametadata () const
 Read only access to the m_metadata class.
 
void copyMetadata (const FieldBase &field)
 Copies the metadata from a second field.
 
- Public Member Functions inherited from RefBase
void ref () const
 Used by boost::intrusive_pointer.
 
size_t refcnt ()
 Used by boost::intrusive_pointer.
 
void unref () const
 Used by boost::intrusive_pointer.
 
WeakPtr weakPtr () const
 
 RefBase ()
 
 RefBase (const RefBase &)
 Copy constructor.
 
RefBaseoperator= (const RefBase &)
 Assignment operator.
 
virtual ~RefBase ()
 Destructor.
 
virtual bool checkRTTI (const char *typenameStr)=0
 This function is only implemented by concrete classes and triggers the actual RTTI check through matchRTTI();.
 
bool matchRTTI (const char *typenameStr)
 Performs a check to see if the given typename string matches this class' This needs to be implemented in -all- subclasses, even abstract ones.
 
- Public Member Functions inherited from MetadataCallback
virtual void metadataHasChanged (const std::string &)
 Alerts the callback holder that the metadata has changed.
 

Static Public Member Functions

static const char * staticClassName ()
 
static const char * staticClassType ()
 
- Static Public Member Functions inherited from Field< Data_T >
static const char * staticClassName ()
 
static const char * staticClassType ()
 
- Static Public Member Functions inherited from FieldRes
static const char * staticClassName ()
 
static const char * staticClassType ()
 
- Static Public Member Functions inherited from FieldBase
static const char * staticClassName ()
 
static const char * staticClassType ()
 
static const char * staticClassType ()
 

Public Attributes

 DEFINE_FIELD_RTTI_ABSTRACT_CLASS
 
int x
 Current position.
 
int y
 
int z
 
- Public Attributes inherited from Field< Data_T >
 DEFINE_FIELD_RTTI_ABSTRACT_CLASS
 
- Public Attributes inherited from FieldRes
 DEFINE_FIELD_RTTI_ABSTRACT_CLASS
 
- Public Attributes inherited from FieldBase
std::string attribute
 Optional name of the attribute the field represents.
 
std::string name
 Optional name of the field.
 

Private Types

typedef Field< Data_T > base
 

Private Attributes

WritableField< Data_T > & m_field
 Reference to field being iterated over.
 
Box3i m_window
 Window to traverse.
 

Static Private Attributes

static TemplatedFieldType< WritableField< Data_T > > ms_classType
 

Additional Inherited Members

- Protected Types inherited from FieldRes
typedef MatrixFieldMapping default_mapping
 
- Protected Attributes inherited from FieldRes
Box3i m_dataWindow
 Defines the area where data is allocated. This should be treated as a closed (i.e. inclusive) interval.
 
Box3i m_extents
 Defines the extents of the the storage. This may be larger or smaller than the data window, and in the case where it is larger, care must be taken not to access voxels outside the data window. This should be treated as a closed (i.e. inclusive) interval.
 
FieldMapping::Ptr m_mapping
 Pointer to the field's mapping.
 

Detailed Description

template<class Data_T>
class WritableField< Data_T >::iterator

Definition at line 703 of file Field.h.

Member Typedef Documentation

◆ Ptr

typedef boost::intrusive_ptr<WritableField> WritableField< Data_T >::Ptr

Definition at line 630 of file Field.h.

◆ class_type

typedef WritableField<Data_T> WritableField< Data_T >::class_type

Definition at line 634 of file Field.h.

◆ base

typedef Field<Data_T> WritableField< Data_T >::base
private

Definition at line 690 of file Field.h.

Constructor & Destructor Documentation

◆ iterator()

template<class Data_T>
WritableField< Data_T >::iterator::iterator ( WritableField< Data_T > & field,
const Box3i & window,
const V3i & currentPos )
inline

Definition at line 717 of file Field.h.

719 : x(currentPos.x), y(currentPos.y), z(currentPos.z),
721 { }
Box3i m_window
Window to traverse.
Definition Field.h:769
int x
Current position.
Definition Field.h:762
WritableField< Data_T > & m_field
Reference to field being iterated over.
Definition Field.h:771

References m_field, m_window, x, y, and z.

Referenced by begin(), begin(), end(), end(), and operator++().

Member Function Documentation

◆ operator++()

template<class Data_T>
const iterator & WritableField< Data_T >::iterator::operator++ ( )
inline

Definition at line 725 of file Field.h.

726 {
727 if (x == m_window.max.x) {
728 if (y == m_window.max.y) {
729 x = m_window.min.x;
730 y = m_window.min.y;
731 ++z;
732 } else {
733 x = m_window.min.x;
734 ++y;
735 }
736 } else {
737 ++x;
738 }
739 return *this;
740 }

References iterator(), m_window, x, y, and z.

◆ operator==()

template<class Data_T>
template<class Iter_T>
bool WritableField< Data_T >::iterator::operator== ( const Iter_T & rhs) const
inline

Definition at line 743 of file Field.h.

744 {
745 return x == rhs.x && y == rhs.y && z == rhs.z;
746 }

References x, y, and z.

◆ operator!=()

template<class Data_T>
template<class Iter_T>
bool WritableField< Data_T >::iterator::operator!= ( const Iter_T & rhs) const
inline

Definition at line 749 of file Field.h.

750 {
751 return x != rhs.x || y != rhs.y || z != rhs.z;
752 }

References x, y, and z.

◆ operator*()

template<class Data_T>
Data_T & WritableField< Data_T >::iterator::operator* ( ) const
inline

Definition at line 754 of file Field.h.

755 {
756 return m_field.lvalue(x, y, z);
757 }

References m_field, x, y, and z.

◆ staticClassName()

static const char * WritableField< Data_T >::staticClassName ( )
inlinestatic

Definition at line 637 of file Field.h.

638 {
639 return "WritableField";
640 }

◆ staticClassType()

static const char * WritableField< Data_T >::staticClassType ( )
inlinestatic

Definition at line 642 of file Field.h.

643 {
645 }
std::string name
Optional name of the field.
Definition Field.h:171

◆ begin() [1/2]

WritableField< Data_T >::iterator WritableField< Data_T >::begin ( )
inline

Iterator to first element.

Definition at line 654 of file Field.h.

780{
781 if (FieldRes::dataResolution() == V3i(0))
782 return end();
785}
Imath::V3i V3i
Definition SpiMathLib.h:71
iterator(WritableField< Data_T > &field, const Box3i &window, const V3i &currentPos)
Definition Field.h:717

References iterator().

◆ begin() [2/2]

WritableField< Data_T >::iterator WritableField< Data_T >::begin ( const Box3i & subset)
inline

Iterator to first element of specific subset.

Definition at line 656 of file Field.h.

792{
793 if (subset.isEmpty())
794 return end(subset);
795 return iterator(*this, subset, subset.min);
796}

References iterator().

◆ end() [1/2]

WritableField< Data_T >::iterator WritableField< Data_T >::end ( )
inline

Iterator pointing one element past the last valid one.

Definition at line 658 of file Field.h.

References iterator().

◆ end() [2/2]

WritableField< Data_T >::iterator WritableField< Data_T >::end ( const Box3i & subset)
inline

Iterator pointing one element past the last valid one (for a subset)

Definition at line 661 of file Field.h.

814{ return iterator(*this, subset,
815 V3i(subset.min.x, subset.min.y, subset.max.z + 1));
816}

References iterator().

◆ lvalue()

virtual Data_T & WritableField< Data_T >::lvalue ( int i,
int j,
int k )
pure virtual

Write access to a voxel. The coordinates are global coordinates.

Note
Before the internal storage is accessed, the subclass must compute the crop window coordinates by looking at Field::m_dataWindow.
This is named differently from the const value so that non-const objects still have a clear way of accessing data in a const way.
Virtual functions are known not to play nice with threading. Therefor, concrete classes can implement (by convention) fastLValue() as a non-virtual function.

◆ clear()

virtual void WritableField< Data_T >::clear ( const Data_T & value)
inlinevirtual

Clears all the voxels in the storage. Should be re-implemented by subclasses that can provide a more efficient version.

Definition at line 679 of file Field.h.

680 { std::fill(begin(), end(), value); }
virtual Data_T value(int i, int j, int k) const =0
Read access to a voxel. The coordinates are in integer voxel space .

Member Data Documentation

◆ x

template<class Data_T>
int WritableField< Data_T >::iterator::x

◆ y

template<class Data_T>
int WritableField< Data_T >::iterator::y

◆ z

template<class Data_T>
int WritableField< Data_T >::iterator::z

◆ m_window

template<class Data_T>
Box3i WritableField< Data_T >::iterator::m_window
private

Window to traverse.

Definition at line 769 of file Field.h.

Referenced by iterator(), and operator++().

◆ m_field

template<class Data_T>
WritableField<Data_T>& WritableField< Data_T >::iterator::m_field
private

Reference to field being iterated over.

Definition at line 771 of file Field.h.

Referenced by iterator(), and operator*().

◆ DEFINE_FIELD_RTTI_ABSTRACT_CLASS

WritableField< Data_T >::DEFINE_FIELD_RTTI_ABSTRACT_CLASS

Definition at line 635 of file Field.h.

◆ ms_classType

TemplatedFieldType<WritableField<Data_T> > WritableField< Data_T >::ms_classType
staticprivate

Definition at line 686 of file Field.h.


The documentation for this class was generated from the following file: