#include <ossimScaleFilter.h>

Inheritance diagram for ossimScaleFilter:

Public Types
enum	ossimScaleFilterType { ossimScaleFilter_NEAREST_NEIGHBOR = 0, ossimScaleFilter_BOX = 1, ossimScaleFilter_GAUSSIAN = 2, ossimScaleFilter_CUBIC = 3, ossimScaleFilter_HANNING = 4, ossimScaleFilter_HAMMING = 5, ossimScaleFilter_LANCZOS = 6, ossimScaleFilter_MITCHELL = 7, ossimScaleFilter_CATROM = 8, ossimScaleFilter_BLACKMAN = 9, ossimScaleFilter_BLACKMAN_SINC = 10, ossimScaleFilter_BLACKMAN_BESSEL = 11, ossimScaleFilter_QUADRATIC = 12, ossimScaleFilter_TRIANGLE = 13, ossimScaleFilter_HERMITE = 14 }

Public Types inherited from ossimConnectableObject
enum	ossimConnectableObjectDirectionType { CONNECTABLE_DIRECTION_NONE = 0, CONNECTABLE_DIRECTION_INPUT = 1, CONNECTABLE_DIRECTION_OUTPUT = 2 }

typedef std::vector< ossimRefPtr< ossimConnectableObject > >	ConnectableObjectList

Public Member Functions
	ossimScaleFilter ()

	ossimScaleFilter (ossimImageSource *inputSource, const ossimDpt &scaleFactor)

virtual ossimRefPtr< ossimImageData >	getTile (const ossimIrect &tileRect, ossim_uint32 resLevel=0)

virtual ossimIrect	getBoundingRect (ossim_uint32 resLevel=0) const
	This will return the bounding rect of the source. More...

virtual ossimRefPtr< ossimImageGeometry >	getImageGeometry ()
	Returns the image geometry object associated with this tile source or NULL if not defined. More...

virtual void	initialize ()

virtual void	getDecimationFactor (ossim_uint32 resLevel, ossimDpt &result) const
	Will return the decimation factor for the given resolution level. More...

virtual void	getDecimationFactors (vector< ossimDpt > &decimations) const

virtual ossim_uint32	getNumberOfDecimationLevels () const
	Will return the number of resolution levels. More...

void	setFilterType (ossimScaleFilterType filterType)

void	setFilterType (ossimScaleFilterType minifyFilterType, ossimScaleFilterType magnifyFilterType)

void	setFilterType (const ossimString &minifyType, const ossimString &magnifyType)

void	setMinifyFilterType (const ossimString &minifyType)

void	setMagnifyFilterType (const ossimString &magnifyType)

void	setMinifyFilterType (ossimScaleFilterType filterType)

void	setMagnifyFilterType (ossimScaleFilterType filterType)

ossimString	getMinifyFilterTypeAsString () const

ossimString	getMagnifyFilterTypeAsString () const

void	setScaleFactor (const ossimDpt &scale)

void	setBlurFactor (ossim_float64 blur)

ossim_float64	getBlurFactor () const

const ossimDpt &	getScaleFactor () const

virtual bool	saveState (ossimKeywordlist &kwl, const char *prefix=0) const

virtual bool	loadState (const ossimKeywordlist &kwl, const char *prefix=0)

Public Member Functions inherited from ossimImageSourceFilter
	ossimImageSourceFilter (ossimObject *owner=NULL)

	ossimImageSourceFilter (ossimImageSource *inputSource)

	ossimImageSourceFilter (ossimObject owner, ossimImageSource inputSource)

virtual void	getOutputBandList (std::vector< ossim_uint32 > &bandList) const

virtual ossim_uint32	getNumberOfInputBands () const

bool	canConnectMyInputTo (ossim_int32 inputIndex, const ossimConnectableObject *object) const
	required to be overriden by derived classes More...

virtual void	connectInputEvent (ossimConnectionEvent &event)

virtual void	disconnectInputEvent (ossimConnectionEvent &event)

virtual void	propertyEvent (ossimPropertyEvent &event)

virtual void	refreshEvent (ossimRefreshEvent &event)

virtual void	setProperty (ossimRefPtr< ossimProperty > property)

virtual ossimRefPtr< ossimProperty >	getProperty (const ossimString &name) const

virtual void	getPropertyNames (std::vector< ossimString > &propertyNames) const

Public Member Functions inherited from ossimImageSource
	ossimImageSource (ossimObject *owner=0)

	ossimImageSource (ossimObject *owner, ossim_uint32 inputListSize, ossim_uint32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimImageSource ()

virtual ossimRefPtr< ossimImageData >	getTile (const ossimIpt &origin, ossim_uint32 resLevel=0)

virtual bool	getTile (ossimImageData *result, ossim_uint32 resLevel=0)
	Method to get a tile. More...

virtual ossimObject *	getObject ()
	For RTTI support. More...

virtual const ossimObject *	getObject () const
	For RTTI support. More...

virtual void	getDecimationFactors (std::vector< ossimDpt > &decimations) const
	Will return an array of all decimations for each resolution level. More...

virtual ossim_uint32	getNumberOfOutputBands () const
	Returns the number of bands in a tile returned from this TileSource. More...

virtual ossimScalarType	getOutputScalarType () const
	This will be used to query the output pixel type of the tile source. More...

virtual ossim_uint32	getTileWidth () const
	Returns the default processing tile width. More...

virtual ossim_uint32	getTileHeight () const
	Returns the default processing tile height. More...

virtual double	getNullPixelValue (ossim_uint32 band=0) const
	Each band has a null pixel associated with it. More...

virtual double	getMinPixelValue (ossim_uint32 band=0) const
	Returns the min pixel of the band. More...

virtual double	getMaxPixelValue (ossim_uint32 band=0) const
	Returns the max pixel of the band. More...

virtual void	getBoundingRect (ossimIrect &rect, ossim_uint32 resLevel=0) const
	Gets the bounding rectangle of the source. More...

virtual void	getValidImageVertices (std::vector< ossimIpt > &validVertices, ossimVertexOrdering ordering=OSSIM_CLOCKWISE_ORDER, ossim_uint32 resLevel=0) const
	ordering specifies how the vertices should be arranged. More...

virtual void	setImageGeometry (const ossimImageGeometry *geom)
	Default implementation sets geometry of the first input to the geometry specified. More...

virtual void	saveImageGeometry () const
	Default method to call input's saveImageGeometry. More...

virtual void	saveImageGeometry (const ossimFilename &geometry_file) const
	Default method to call input's saveImageGeometry. More...

virtual bool	isIndexedData () const

Public Member Functions inherited from ossimSource
	ossimSource (ossimObject *owner=0)

	ossimSource (ossimObject *owner, ossim_uint32 inputListSize, ossim_uint32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimSource ()

virtual bool	isSourceEnabled () const

virtual void	enableSource ()

virtual void	disableSource ()

virtual bool	getEnableFlag () const

virtual void	setEnableFlag (bool flag)

virtual bool	isInitialized () const

virtual void	setInitializedFlag (bool flag)

virtual std::ostream &	print (std::ostream &out) const
	Outputs theErrorStatus as an ossimErrorCode and an ossimString. More...

Public Member Functions inherited from ossimConnectableObject
	ossimConnectableObject (ossimObject *owner=0)
	Base constructor of this object. More...

	ossimConnectableObject (ossimObject *owner, ossim_int32 inputListSize, ossim_int32 outputListSize, bool inputListIsFixedFlag=true, bool outputListIsFixedFlag=true)

virtual	~ossimConnectableObject ()

void	setId (const ossimId &id)
	All connectable objects will have id's. More...

const ossimId &	getId () const
	Will allow us to get this object's id. More...

const ossimObject *	getOwner () const
	Fetches the current owner, most likely a container but not limited to one. More...

virtual void	changeOwner (ossimObject *owner)
	Permits changing the object's owner. More...

virtual void	setDescription (const ossimString &description)

virtual ossimString	getDescription () const

virtual bool	isConnected (ossimConnectableObjectDirectionType direction=CONNECTABLE_DIRECTION_INPUT) const
	will check the direction specified to see if all slots are full. More...

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findConnectableObject(const ossimId &id))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findObjectOfType(RTTItypeid typeId, ossimConnectableObjectDirectionType directionType, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findObjectOfType(const ossimString &obj, ossimConnectableObjectDirectionType directionType, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual ossimConnectableObject *findInputObjectOfType(const ossimString &className))

virtual ossim_int32	findInputIndex (const ossimConnectableObject *object)
	Return a valid index of the input list if the passed in object is found else return -1. More...

virtual ossim_int32	findInputIndex (const ossimId &id)
	Return a valid index of the input list if the passed id is found else return -1. More...

virtual ossim_int32	findOutputIndex (const ossimConnectableObject *object)
	Return a valid index of the output list if the passed in object is found else return -1. More...

virtual ossim_int32	findOutputIndex (const ossimId &id)
	Return a valid index of the output list if the passed in object is found else return -1. More...

virtual ossim_int32	getMyInputIndexToConnectTo (ossimConnectableObject *object) const
	Should return the first available index to connect to. More...

virtual ossim_int32	getMyOutputIndexToConnectTo (ossimConnectableObject *object) const
	Should return the first available index to connect to. More...

virtual bool	canConnectMyOutputTo (ossim_int32 myOutputIndex, const ossimConnectableObject *object) const
	default implementation is to allow anyone to connect to us. More...

virtual void	disconnect (ossimConnectableObject *object=0)
	Will disconnect the object passed in. More...

virtual void	disconnect (const ossimId &id)
	Will disconnect the object passed in. More...

virtual ossimRefPtr< ossimConnectableObject >	disconnectMyInput (ossim_int32 inputIndex, bool disconnectOutputFlag=true, bool createEventFlag=true)
	Will disconnect the object at the given input index and generate a connection event. More...

virtual void	disconnectMyInput (ossimConnectableObject *input, bool disconnectOutputFlag=true, bool createEventFlag=true)
	Finds the index of the passed in input and calls disconnectMyInput(inputIndex, disconnectOutputFlag, createEventFlag);. More...

virtual void	disconnectMyInputs (ConnectableObjectList &inputList, bool disconnectOutputFlag=true, bool createEventFlag=true)

virtual ossimRefPtr< ossimConnectableObject >	disconnectMyOutput (ossim_int32 outputIndex, bool disconnectInputFlag=true, bool createEventFlag=true)
	Will disconnect the object at the given output index and generate a connection event. More...

virtual void	disconnectMyOutput (ossimConnectableObject *output, bool disconnectInputFlag=true, bool createEventFlag=true)
	Will disconnect the output object. More...

virtual void	disconnectMyOutputs (ConnectableObjectList &outputList, bool disconnectOutputFlag=true, bool createEventFlag=true)

virtual void	disconnectAllInputs ()
	Will disconnect all of the input objects. More...

virtual void	disconnectAllOutputs ()
	Will disconnect all of the output objects. More...

virtual ossim_int32	connectMyInputTo (ossimConnectableObject *inputObject, bool makeOutputConnection=true, bool createEventFlag=true)
	Will try to connect this objects input to the passed in object. More...

virtual ossim_int32	connectMyInputTo (ossim_int32 inputIndex, ossimConnectableObject *inputObject, bool makeOutputConnection=true, bool createEventFlag=true)
	Will connect the specified input to the passed in object. More...

virtual bool	connectMyInputTo (ConnectableObjectList &inputList, bool makeOutputConnection=true, bool createEventFlag=true)

virtual ossim_int32	connectMyOutputTo (ossimConnectableObject *outputObject, bool makeInputConnection=true, bool createEventFlag=true)
	Will try to connect this objects output to the passed in object. More...

virtual bool	connectMyOutputTo (ConnectableObjectList &outputList, bool makeInputConnection=true, bool createEventFlag=true)

virtual bool	connectInputList (ConnectableObjectList &inputList)
	Will disconnect itself from all inputs and reset to the passed in input list. More...

virtual bool	connectOutputList (ConnectableObjectList &outputList)
	Will disconnect itself from all outputs and reset to the passed in output list. More...

virtual ossim_uint32	getNumberOfInputs () const
	Returns the number of input objects. More...

virtual ossim_uint32	getNumberOfOutputs () const
	Return the number of output objects. More...

ossimConnectableObject *	getInput (ossim_uint32 index=0)
	returns the object at the specified index. More...

const ossimConnectableObject *	getInput (ossim_uint32 index=0) const
	returns the object at the specified index. More...

ossimConnectableObject *	getOutput (ossim_uint32 index=0)
	returns the object at the specified index. More...

const ossimConnectableObject *	getOutput (ossim_uint32 index=0) const
	returns the object at the specified index. More...

virtual void	setNumberOfInputs (ossim_int32 numberOfInputs)
	Will set the number of inputs. More...

virtual bool	getInputListIsFixedFlag () const

virtual bool	getOutputListIsFixedFlag () const

virtual void	setNumberOfOutputs (ossim_int32 numberOfInputs)
	Will set the number of outputs. More...

const ConnectableObjectList &	getInputList () const

const ConnectableObjectList &	getOutputList () const

ConnectableObjectList &	getInputList ()

ConnectableObjectList &	getOutputList ()

	OSSIM_DEPRECATE_METHOD (virtual void findAllObjectsOfType(ConnectableObjectList &result, const RTTItypeid &typeInfo, bool recurse=true))

	OSSIM_DEPRECATE_METHOD (virtual void findAllObjectsOfType(ConnectableObjectList &result, const ossimString &className, bool recurse=true))

virtual void	propagateEventToOutputs (ossimEvent &event)

virtual void	propagateEventToInputs (ossimEvent &event)

virtual void	setProperty (const ossimString &name, const ossimString &value)

virtual ossim_uint32	saveStateOfAllInputs (ossimKeywordlist &kwl, bool saveThisStateFlag=true, ossim_uint32 objectIndex=1, const char *prefix=0) const
	Save the state of all inputs to a keyword list. More...

virtual bool	fillContainer (ossimConnectableContainer &container)
	Inserts this object and all of its children and inputs into the container provided. More...

bool	moveInputUp (const ossimId &id)
	Moves the input connection matching id up one in the connection list. More...

bool	moveInputDown (const ossimId &id)
	Moves the input connection matching id down one in the connection list. More...

bool	moveInputToTop (const ossimId &id)
	Moves the input connection matching id to the top of the connection list. More...

bool	moveInputToBottom (const ossimId &id)
	Moves the input connection matching id to the bottom of the connection list. More...

virtual void	accept (ossimVisitor &visitor)
	We will add a visitor interface for all connectable objects. More...

Public Member Functions inherited from ossimObject
	ossimObject ()

virtual	~ossimObject ()

virtual ossimObject *	dup () const

virtual ossimString	getShortName () const

virtual ossimString	getLongName () const

virtual ossimString	getClassName () const

virtual RTTItypeid	getType () const

virtual bool	canCastTo (ossimObject *obj) const

virtual bool	canCastTo (const RTTItypeid &id) const

virtual bool	canCastTo (const ossimString &parentClassName) const

virtual bool	isEqualTo (const ossimObject &obj, ossimCompareType compareType=OSSIM_COMPARE_FULL) const

Public Member Functions inherited from ossimReferenced
	ossimReferenced ()

	ossimReferenced (const ossimReferenced &)

ossimReferenced &	operator= (const ossimReferenced &)

void	ref () const
	increment the reference count by one, indicating that this object has another pointer which is referencing it. More...

void	unref () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

void	unref_nodelete () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

int	referenceCount () const

Public Member Functions inherited from ossimListenerManager
	ossimListenerManager ()

virtual	~ossimListenerManager ()

virtual void	fireEvent (ossimEvent &event)

virtual bool	addListener (ossimListener *listener)

virtual bool	removeListener (ossimListener *listener)

virtual bool	findListener (ossimListener *listener)

Public Member Functions inherited from ossimPropertyInterface
	ossimPropertyInterface ()

virtual	~ossimPropertyInterface ()

virtual ossimString	getPropertyValueAsString (const ossimString &name) const

void	getPropertyList (std::vector< ossimRefPtr< ossimProperty > > &propertyList) const

void	setProperties (std::vector< ossimRefPtr< ossimProperty > > &propertyList)

Public Member Functions inherited from ossimErrorStatusInterface
	ossimErrorStatusInterface ()

virtual	~ossimErrorStatusInterface ()

virtual ossimErrorCode	getErrorStatus () const

virtual ossimString	getErrorStatusString () const

virtual void	setErrorStatus (ossimErrorCode error_status) const

virtual void	setErrorStatus () const

virtual void	clearErrorStatus () const

bool	hasError () const

Public Member Functions inherited from ossimConnectableObjectListener
	ossimConnectableObjectListener ()

virtual	~ossimConnectableObjectListener ()

virtual void	processEvent (ossimEvent &event)
	ProcessEvent. More...

virtual void	objectDestructingEvent (ossimObjectDestructingEvent &)

virtual void	connectionEvent (ossimConnectionEvent &)

virtual void	disconnectOutputEvent (ossimConnectionEvent &)

virtual void	connectOutputEvent (ossimConnectionEvent &)

virtual void	addObjectEvent (ossimContainerEvent &)

virtual void	removeObjectEvent (ossimContainerEvent &)

virtual void	containerEvent (ossimContainerEvent &)

Public Member Functions inherited from ossimListener
	ossimListener ()

virtual	~ossimListener ()

void	enableListener ()

void	disableListener ()

void	setListenerEnableFlag (bool flag)

bool	isListenerEnabled () const

bool	getListenerEnableFlag () const

Protected Member Functions
virtual	~ossimScaleFilter ()

void	allocate ()

void	updateGeometry ()
	If this object is maintaining an ossimImageGeometry, this method needs to be called after a scale change so that the geometry's projection is modified accordingly. More...

template<class T >
void	runFilterTemplate (T dummy, const ossimIrect &imageRect, const ossimIrect &viewRect)

template<class T >
void	runHorizontalFilterTemplate (T dummy, const ossimRefPtr< ossimImageData > &input, ossimRefPtr< ossimImageData > &output)

template<class T >
void	runVerticalFilterTemplate (T dummy, const ossimRefPtr< ossimImageData > &input, ossimRefPtr< ossimImageData > &output)

void	runFilter (const ossimIrect &imageRect, const ossimIrect &viewRect)

void	getSupport (double &x, double &y)

const ossimFilter *	getHorizontalFilter () const

const ossimFilter *	getVerticalFilter () const

ossimString	getFilterTypeAsString (ossimScaleFilterType type) const

ossimScaleFilterType	getFilterType (const ossimString &type) const

ossimIrect	scaleRect (const ossimIrect input, const ossimDpt &scaleFactor) const

ossimFilter *	createNewFilter (ossimScaleFilterType filterType, ossimScaleFilterType &result)

Protected Member Functions inherited from ossimImageSourceFilter
virtual	~ossimImageSourceFilter ()

Protected Member Functions inherited from ossimImageSource
	ossimImageSource (const ossimImageSource &rhs)

const ossimImageSource &	operator= (const ossimImageSource &)

Protected Member Functions inherited from ossimSource
	ossimSource (const ossimSource &rhs)

const ossimSource &	operator= (const ossimSource &rhs)

Protected Member Functions inherited from ossimConnectableObject
ossimConnectableObject *	findObjectOfType (ConnectableObjectList *connectableList, ossimVisitor &visitor)

Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Protected Member Functions inherited from ossimListenerManager
	ossimListenerManager (const ossimListenerManager &rhs)

Protected Attributes
ossimRefPtr< ossimImageData >	m_BlankTile

ossimRefPtr< ossimImageData >	m_Tile

ossimFilter *	m_MinifyFilter

ossimFilter *	m_MagnifyFilter

ossimScaleFilterType	m_MinifyFilterType

ossimScaleFilterType	m_MagnifyFilterType

ossimDpt	m_ScaleFactor

ossimDpt	m_InverseScaleFactor

ossimIpt	m_TileSize

ossimIrect	m_InputRect

ossim_float64	m_BlurFactor

ossimRefPtr< ossimImageGeometry >	m_ScaledGeometry
	The input image geometry, altered by the scale. More...

Protected Attributes inherited from ossimImageSourceFilter
ossimImageSource *	theInputConnection

Protected Attributes inherited from ossimSource
bool	theEnableFlag

bool	theInitializedFlag

Protected Attributes inherited from ossimConnectableObject
ossimId	theId

ossimString	theDescription

ossimObject *	theOwner

bool	theInputListIsFixedFlag
	Indicates whether the theInputObjectList is fixed. More...

bool	theOutputListIsFixedFlag
	Indicates whether the theOutputObjectList is fixed. More...

ConnectableObjectList	theInputObjectList
	Holds a list of input objects. More...

ConnectableObjectList	theOutputObjectList
	Holds a list of output objects. More...

Protected Attributes inherited from ossimListenerManager
std::list< ossimListener * >	theListenerList

bool	theEnabledFlag

std::list< ossimListener * >	theDelayedAdd

std::list< ossimListener * >	theDelayedRemove

bool	theFireEventFlag

Protected Attributes inherited from ossimErrorStatusInterface
ossimErrorCode	theErrorStatus

Protected Attributes inherited from ossimListener
bool	theListenerEnableFlag

Detailed Description

Definition at line 22 of file ossimScaleFilter.h.

Member Enumeration Documentation

◆ ossimScaleFilterType

enum ossimScaleFilter::ossimScaleFilterType

Enumerator
ossimScaleFilter_NEAREST_NEIGHBOR
ossimScaleFilter_BOX
ossimScaleFilter_GAUSSIAN
ossimScaleFilter_CUBIC
ossimScaleFilter_HANNING
ossimScaleFilter_HAMMING
ossimScaleFilter_LANCZOS
ossimScaleFilter_MITCHELL
ossimScaleFilter_CATROM
ossimScaleFilter_BLACKMAN
ossimScaleFilter_BLACKMAN_SINC
ossimScaleFilter_BLACKMAN_BESSEL
ossimScaleFilter_QUADRATIC
ossimScaleFilter_TRIANGLE
ossimScaleFilter_HERMITE

Definition at line 25 of file ossimScaleFilter.h.

    {
       ossimScaleFilter_NEAREST_NEIGHBOR = 0,
       ossimScaleFilter_BOX              = 1,
       ossimScaleFilter_GAUSSIAN         = 2,
       ossimScaleFilter_CUBIC            = 3,
       ossimScaleFilter_HANNING          = 4,
       ossimScaleFilter_HAMMING          = 5,
       ossimScaleFilter_LANCZOS          = 6,
       ossimScaleFilter_MITCHELL         = 7,
       ossimScaleFilter_CATROM           = 8,
       ossimScaleFilter_BLACKMAN         = 9,
       ossimScaleFilter_BLACKMAN_SINC    = 10,
       ossimScaleFilter_BLACKMAN_BESSEL  = 11,
       ossimScaleFilter_QUADRATIC        = 12,
       ossimScaleFilter_TRIANGLE         = 13,
       ossimScaleFilter_HERMITE          = 14
    };

Constructor & Destructor Documentation

◆ ossimScaleFilter() [1/2]

ossimScaleFilter::ossimScaleFilter ( )

Definition at line 24 of file ossimScaleFilter.cpp.

References m_InputRect, m_MagnifyFilter, m_MinifyFilter, and ossimIrect::makeNan().

    :ossimImageSourceFilter(),
     m_BlankTile(NULL),
     m_Tile(NULL),
     m_MinifyFilter(NULL),
     m_MagnifyFilter(NULL),
     m_MinifyFilterType(ossimScaleFilter_NEAREST_NEIGHBOR),
     m_MagnifyFilterType(ossimScaleFilter_NEAREST_NEIGHBOR),
     m_ScaleFactor(1.0, 1.0),
     m_InverseScaleFactor(1.0, 1.0),
     m_TileSize(64, 64),
     m_BlurFactor(1.0)
 {
    m_InputRect.makeNan();
    m_MinifyFilter  = new ossimNearestNeighborFilter();
    m_MagnifyFilter = new ossimNearestNeighborFilter();
 }

◆ ossimScaleFilter() [2/2]

ossimScaleFilter::ossimScaleFilter	(	ossimImageSource *	inputSource,
		const ossimDpt &	scaleFactor
	)

Definition at line 43 of file ossimScaleFilter.cpp.

References m_InputRect, m_MagnifyFilter, m_MinifyFilter, and ossimIrect::makeNan().

    :ossimImageSourceFilter(inputSource),
     m_BlankTile(NULL),
     m_Tile(NULL),
     m_MinifyFilter(NULL),
     m_MagnifyFilter(NULL),
     m_MinifyFilterType(ossimScaleFilter_NEAREST_NEIGHBOR),
     m_MagnifyFilterType(ossimScaleFilter_NEAREST_NEIGHBOR),
     m_ScaleFactor(scaleFactor),
     m_TileSize(64, 64),
     m_BlurFactor(1.0)
 {
    m_InputRect.makeNan();
    m_MinifyFilter  = new ossimNearestNeighborFilter();
    m_MagnifyFilter = new ossimNearestNeighborFilter();
 }

◆ ~ossimScaleFilter()

ossimScaleFilter::~ossimScaleFilter ( )

protectedvirtual

Definition at line 62 of file ossimScaleFilter.cpp.

References m_MagnifyFilter, and m_MinifyFilter.

 {
    if(m_MinifyFilter)
    {
       delete m_MinifyFilter;
       m_MinifyFilter = NULL;
    }
    
    if(m_MagnifyFilter)
    {
       delete m_MagnifyFilter;
       m_MagnifyFilter = NULL;
    }
 }

Member Function Documentation

◆ allocate()

void ossimScaleFilter::allocate ( )

protected

Definition at line 639 of file ossimScaleFilter.cpp.

References ossimImageDataFactory::create(), ossimImageSource::getBoundingRect(), ossimImageData::initialize(), ossimImageDataFactory::instance(), ossimSource::isSourceEnabled(), m_BlankTile, m_InputRect, m_Tile, ossimIrect::makeNan(), and ossimImageSourceFilter::theInputConnection.

Referenced by getTile().

 {
    m_Tile      = NULL;
    m_BlankTile = NULL;
    m_InputRect.makeNan();
 
    if(theInputConnection&&isSourceEnabled())
    {
       m_Tile      = ossimImageDataFactory::instance()->create(this, this);
       m_BlankTile = ossimImageDataFactory::instance()->create(this, this);
       
       m_Tile->initialize();
 
       m_InputRect = theInputConnection->getBoundingRect();
    }
 }

◆ createNewFilter()

ossimFilter * ossimScaleFilter::createNewFilter	(	ossimScaleFilterType	filterType,
		ossimScaleFilterType &	result
	)

protected

Definition at line 290 of file ossimScaleFilter.cpp.

References ossimScaleFilter_BLACKMAN, ossimScaleFilter_BLACKMAN_BESSEL, ossimScaleFilter_BLACKMAN_SINC, ossimScaleFilter_BOX, ossimScaleFilter_CATROM, ossimScaleFilter_CUBIC, ossimScaleFilter_GAUSSIAN, ossimScaleFilter_HAMMING, ossimScaleFilter_HANNING, ossimScaleFilter_HERMITE, ossimScaleFilter_LANCZOS, ossimScaleFilter_MITCHELL, ossimScaleFilter_NEAREST_NEIGHBOR, ossimScaleFilter_QUADRATIC, and ossimScaleFilter_TRIANGLE.

Referenced by setFilterType().

 {
    switch(filterType)
    {
    case ossimScaleFilter_NEAREST_NEIGHBOR:
    {
       return new ossimNearestNeighborFilter();
    }
    case ossimScaleFilter_BOX:
    {
       return new ossimBoxFilter();
    }
    case ossimScaleFilter_GAUSSIAN:
    {
       return new ossimGaussianFilter();
    }
    case ossimScaleFilter_CUBIC:
    {
       return new ossimCubicFilter();
    }
    case ossimScaleFilter_HANNING:
    {
       return new ossimHanningFilter();
    }
    case ossimScaleFilter_HAMMING:
    {
       return new ossimHammingFilter();
    }
    case ossimScaleFilter_LANCZOS:
    {
       return new ossimLanczosFilter();
    }
    case ossimScaleFilter_CATROM:
    {
       return new ossimCatromFilter();
    }
    case ossimScaleFilter_MITCHELL:
    {
       return new ossimMitchellFilter();
    }
    case ossimScaleFilter_BLACKMAN:
    {
       return new ossimBlackmanFilter();
    }
    case ossimScaleFilter_BLACKMAN_SINC:
    {
       return new ossimBlackmanSincFilter();
    }
    case ossimScaleFilter_BLACKMAN_BESSEL:
    {
       return new ossimBlackmanBesselFilter();
    }
    case ossimScaleFilter_QUADRATIC:
    {
       return new ossimQuadraticFilter();
    }
    case ossimScaleFilter_TRIANGLE:
    {
       return new ossimTriangleFilter();
    }
    case ossimScaleFilter_HERMITE:
    {
       return new ossimHermiteFilter();
    }
    
    }
 
    result = ossimScaleFilter_NEAREST_NEIGHBOR;
    return new ossimNearestNeighborFilter();
 }

◆ getBlurFactor()

ossim_float64 ossimScaleFilter::getBlurFactor ( ) const

inline

Definition at line 116 of file ossimScaleFilter.h.

       {
          return m_BlurFactor;
       }

◆ getBoundingRect()

ossimIrect ossimScaleFilter::getBoundingRect ( ossim_uint32 resLevel = 0 ) const

virtual

This will return the bounding rect of the source.

We can have several sources which are in a chain to modify the bounding image rect. lets say you are next to an image handler then it will return the bounding rect for that image. If you are at the right side of a resampler then you will get a bounding rect along the image view plane. This is going to be a very import method for both image writers, mosaics or anything that needs to operate only within the bounds of an image.

Reimplemented from ossimImageSource.

Definition at line 248 of file ossimScaleFilter.cpp.

References ossimImageSource::getBoundingRect(), ossimIrect::hasNans(), and m_ScaleFactor.

 {
    ossimIrect result = ossimImageSourceFilter::getBoundingRect(resLevel);
 
    if(!result.hasNans())
    {
       result *= m_ScaleFactor;
    }
    
    return result;
 }

◆ getDecimationFactor()

virtual void ossimScaleFilter::getDecimationFactor	(	ossim_uint32	resLevel,
		ossimDpt &	result
	)		const

inlinevirtual

Will return the decimation factor for the given resolution level.

the decimation is the scale from Resolution 0 or full res. Usually this is a power of 2 decimation where the decimation result is 1.0/2^resoltion.

Reimplemented from ossimImageSource.

Definition at line 55 of file ossimScaleFilter.h.

References ossimDpt::makeNan(), ossimDpt::x, and ossimDpt::y.

       {
          result.makeNan();
 
          if(resLevel == 0)
          {
             result.x = 1.0;
             result.y = 1.0;
          }
       }

◆ getDecimationFactors()

virtual void ossimScaleFilter::getDecimationFactors ( vector< ossimDpt > & decimations ) const

inlinevirtual

Definition at line 66 of file ossimScaleFilter.h.

       {
          decimations.push_back(ossimDpt(1.0, 1.0));
       }

◆ getFilterType()

ossimScaleFilter::ossimScaleFilterType ossimScaleFilter::getFilterType ( const ossimString & type ) const

protected

Definition at line 779 of file ossimScaleFilter.cpp.

References ossimString::contains(), ossimScaleFilter_BLACKMAN, ossimScaleFilter_BLACKMAN_BESSEL, ossimScaleFilter_BLACKMAN_SINC, ossimScaleFilter_BOX, ossimScaleFilter_CATROM, ossimScaleFilter_CUBIC, ossimScaleFilter_GAUSSIAN, ossimScaleFilter_HAMMING, ossimScaleFilter_HANNING, ossimScaleFilter_HERMITE, ossimScaleFilter_LANCZOS, ossimScaleFilter_MITCHELL, ossimScaleFilter_NEAREST_NEIGHBOR, ossimScaleFilter_QUADRATIC, ossimScaleFilter_TRIANGLE, and ossimString::upcase().

Referenced by loadState().

 {
    ossimString typeUpper = type;
    typeUpper = typeUpper.upcase();
 
    if(typeUpper.contains("BOX"))
    {
       return ossimScaleFilter_BOX;
    }
    else if(typeUpper.contains("NEAREST_NEIGHBOR"))
    {
       return ossimScaleFilter_NEAREST_NEIGHBOR;
    }
    else if(typeUpper.contains("GAUSSIAN"))
    {
       return ossimScaleFilter_GAUSSIAN;
    }
    else if(typeUpper.contains("HANNING"))
    {
       return ossimScaleFilter_HANNING;
    }
    else if(typeUpper.contains("HAMMING"))
    {
       return ossimScaleFilter_HAMMING;
    }
    else if(typeUpper.contains("LANCZOS"))
    {
       return ossimScaleFilter_LANCZOS;
    }
    else if(typeUpper.contains("MITCHELL"))
    {
       return ossimScaleFilter_MITCHELL;
    }
    else if(typeUpper.contains("CATROM"))
    {
       return ossimScaleFilter_CATROM;
    }
    else if(typeUpper.contains("CUBIC"))
    {
       return ossimScaleFilter_CUBIC;
    }
    else if(typeUpper.contains("BLACKMAN_BESSEL"))
    {
       return ossimScaleFilter_BLACKMAN_BESSEL;
    }
    else if(typeUpper.contains("BLACKMAN_SINC"))
    {
       return ossimScaleFilter_BLACKMAN_SINC;
    }
    else if(typeUpper.contains("BLACKMAN"))
    {
       return ossimScaleFilter_BLACKMAN;
    }
    else if(typeUpper.contains("QUADRATIC"))
    {
       return ossimScaleFilter_QUADRATIC;
    }
    else if(typeUpper.contains("TRIANGLE"))
    {
       return ossimScaleFilter_TRIANGLE;
    }
    else if(typeUpper.contains("HERMITE"))
    {
       return ossimScaleFilter_HERMITE;
    }
    
    return ossimScaleFilter_NEAREST_NEIGHBOR;
 }

◆ getFilterTypeAsString()

ossimString ossimScaleFilter::getFilterTypeAsString ( ossimScaleFilterType type ) const

protected

Definition at line 709 of file ossimScaleFilter.cpp.

References ossimScaleFilter_BLACKMAN, ossimScaleFilter_BLACKMAN_BESSEL, ossimScaleFilter_BLACKMAN_SINC, ossimScaleFilter_BOX, ossimScaleFilter_CATROM, ossimScaleFilter_CUBIC, ossimScaleFilter_GAUSSIAN, ossimScaleFilter_HAMMING, ossimScaleFilter_HANNING, ossimScaleFilter_HERMITE, ossimScaleFilter_LANCZOS, ossimScaleFilter_MITCHELL, ossimScaleFilter_NEAREST_NEIGHBOR, ossimScaleFilter_QUADRATIC, and ossimScaleFilter_TRIANGLE.

Referenced by saveState().

 {
    switch(type)
    {
    case ossimScaleFilter_NEAREST_NEIGHBOR:
    {
       return "nearest_neighbor";
    }
    case ossimScaleFilter_BOX:
    {
       return "box";
    }
    case ossimScaleFilter_GAUSSIAN:
    {
       return "gaussian";
    }
    case ossimScaleFilter_CUBIC:
    {
       return "cubic";
    }
    case ossimScaleFilter_HANNING:
    {
       return "hanning";
    }
    case ossimScaleFilter_HAMMING:
    {
       return "hamming";
    }
    case ossimScaleFilter_LANCZOS:
    {
       return "lanczos";
    }
    case ossimScaleFilter_MITCHELL:
    {
       return "mitchell";
    }
    case ossimScaleFilter_CATROM:
    {
       return "catrom";
    }
    case ossimScaleFilter_BLACKMAN:
    {
       return "blackman";
    }
    case ossimScaleFilter_BLACKMAN_SINC:
    {
       return "blackman_sinc";
    }
    case ossimScaleFilter_BLACKMAN_BESSEL:
    {
       return "blackman_bessel";
    }
    case ossimScaleFilter_QUADRATIC:
    {
       return "quadratic";
    }
    case ossimScaleFilter_TRIANGLE:
    {
       return "triangle";
    }
    case ossimScaleFilter_HERMITE:
    {
       return "hermite";
    }
    }
 
    return "nearest_neighbor";
 }

◆ getHorizontalFilter()

const ossimFilter * ossimScaleFilter::getHorizontalFilter ( ) const

protected

Definition at line 861 of file ossimScaleFilter.cpp.

References m_MagnifyFilter, m_MinifyFilter, m_ScaleFactor, and ossimDpt::x.

Referenced by getSupport(), and runHorizontalFilterTemplate().

 {
    if(m_ScaleFactor.x < 1)
    {
       return m_MinifyFilter;
    }
 
    return m_MagnifyFilter;
 }

◆ getImageGeometry()

ossimRefPtr< ossimImageGeometry > ossimScaleFilter::getImageGeometry ( )

virtual

Returns the image geometry object associated with this tile source or NULL if not defined.

The geometry contains full-to-local image transform as well as projection (image-to-world). Default implementation returns the image geometry object associated with the next
(left) input source (if any) connected to this source in the chain, or NULL.

Reimplemented from ossimImageSource.

Definition at line 660 of file ossimScaleFilter.cpp.

References ossimImageSource::getImageGeometry(), m_ScaledGeometry, m_ScaleFactor, ossimImageSourceFilter::theInputConnection, updateGeometry(), ossimRefPtr< T >::valid(), ossimDpt::x, and ossimDpt::y.

 {
    // Have we already defined our own geometry? Return it if so:
    if (m_ScaledGeometry.valid()) return m_ScaledGeometry;
 
    // Otherwise we'll need to establish a geometry based on the input connection:
    if(theInputConnection)
    {
       // Fetch the map projection of the input image if it exists:
       ossimRefPtr<ossimImageGeometry> inputGeom = theInputConnection->getImageGeometry();
 
       // If trivial case of identity scale, just pass along the input connection's geometry:
       if ((m_ScaleFactor.x == 1.0) && (m_ScaleFactor.y == 1.0))
          return inputGeom;
 
       // Need to create a copy of the input geom and modify it as our own, then pass that:
       if ( inputGeom.valid() )
       {
          m_ScaledGeometry = new ossimImageGeometry(*inputGeom);
          updateGeometry();
 
          // Return the modified geometry:
          return m_ScaledGeometry;
       }
    }
 
    // No geometry defined, return NULL pointer:
    return ossimRefPtr<ossimImageGeometry>();
 }

◆ getMagnifyFilterTypeAsString()

ossimString ossimScaleFilter::getMagnifyFilterTypeAsString ( ) const

inline

Definition at line 107 of file ossimScaleFilter.h.

       {
          return getFilterTypeAsString(m_MagnifyFilterType);
       }

◆ getMinifyFilterTypeAsString()

ossimString ossimScaleFilter::getMinifyFilterTypeAsString ( ) const

inline

Definition at line 103 of file ossimScaleFilter.h.

       {
          return getFilterTypeAsString(m_MinifyFilterType);
       }

◆ getNumberOfDecimationLevels()

virtual ossim_uint32 ossimScaleFilter::getNumberOfDecimationLevels ( ) const

inlinevirtual

Will return the number of resolution levels.

Note: resolution level 0 is included in the return count.

Reimplemented from ossimImageSource.

Definition at line 70 of file ossimScaleFilter.h.

       {
          // only full res output since we are scaling
          //
          return 1;
       }

◆ getScaleFactor()

const ossimDpt& ossimScaleFilter::getScaleFactor ( ) const

inline

Definition at line 120 of file ossimScaleFilter.h.

       {
          return m_ScaleFactor;
       }

◆ getSupport()

void ossimScaleFilter::getSupport	(	double &	x,
		double &	y
	)

protected

Definition at line 849 of file ossimScaleFilter.cpp.

References getHorizontalFilter(), ossimFilter::getSupport(), getVerticalFilter(), m_BlurFactor, m_ScaleFactor, ossim::max(), ossimDpt::x, x, ossimDpt::y, and y.

Referenced by getTile().

 {
    const ossimFilter* horizontalFilter = getHorizontalFilter();
    const ossimFilter* verticalFilter   = getVerticalFilter();
    
    x = m_BlurFactor*ossim::max(1.0/m_ScaleFactor.x, 1.0)*
        horizontalFilter->getSupport();
    y = m_BlurFactor*ossim::max(1.0/m_ScaleFactor.y, 1.0)*
        verticalFilter->getSupport();
 }

◆ getTile()

ossimRefPtr< ossimImageData > ossimScaleFilter::getTile	(	const ossimIrect &	rect,
		ossim_uint32	resLevel = `0`
	)

virtual

Returns: the requested region of interest

Reimplemented from ossimImageSource.

Definition at line 78 of file ossimScaleFilter.cpp.

References allocate(), getSupport(), ossimImageSource::getTile(), ossimSource::isSourceEnabled(), ossimIrect::lr(), m_BlankTile, m_BlurFactor, m_InverseScaleFactor, m_ScaleFactor, m_Tile, ossimImageData::makeBlank(), runFilter(), ossimImageData::setImageRectangle(), ossimImageSourceFilter::theInputConnection, ossimIrect::ul(), ossimRefPtr< T >::valid(), ossimImageData::validate(), ossimIpt::x, ossimDpt::x, ossimIpt::y, and ossimDpt::y.

 {
    
    if((!isSourceEnabled())||
       (!theInputConnection)||
       ((m_ScaleFactor.x == 1.0)&&
        (m_ScaleFactor.y == 1.0)&&
        (m_BlurFactor == 1.0)))
    {
       return ossimImageSourceFilter::getTile(tileRect, resLevel);
    }
    if(!m_Tile.valid())
    {
       allocate();
    }
 
    if(!m_Tile)
    {
       return ossimImageSourceFilter::getTile(tileRect, resLevel);
    }
 
    m_Tile->makeBlank();
 
                        
    ossimIrect imageRect = tileRect*m_InverseScaleFactor;
 
    m_Tile->setImageRectangle(tileRect);
    m_BlankTile->setImageRectangle(tileRect);
 
 
    double xSupport;
    double ySupport;
 
    getSupport(xSupport, ySupport);
    
    ossimIpt deltaPt;
    deltaPt.x = (ossim_int32)ceil(xSupport);
    deltaPt.y = (ossim_int32)ceil(ySupport);
 
    imageRect = ossimIrect(imageRect.ul().x - (deltaPt.x),
                           imageRect.ul().y - (deltaPt.y),
                           imageRect.lr().x + (deltaPt.x),
                           imageRect.lr().y + (deltaPt.y));
 
    
    runFilter(imageRect, tileRect);
    
    m_Tile->validate();
    
    return m_Tile;
 }

◆ getVerticalFilter()

const ossimFilter * ossimScaleFilter::getVerticalFilter ( ) const

protected

Definition at line 872 of file ossimScaleFilter.cpp.

References m_MagnifyFilter, m_MinifyFilter, m_ScaleFactor, and ossimDpt::y.

Referenced by getSupport(), and runVerticalFilterTemplate().

 {
    if(m_ScaleFactor.y < 1)
    {
       return m_MinifyFilter;
    }
 
    return m_MagnifyFilter;
 }

◆ initialize()

void ossimScaleFilter::initialize ( )

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 628 of file ossimScaleFilter.cpp.

References ossimImageSourceFilter::initialize(), m_BlankTile, m_InputRect, m_Tile, and ossimIrect::makeNan().

 {
    ossimImageSourceFilter::initialize();
 
    // Force an allocate next getTile.
    m_Tile = NULL;
    m_BlankTile = NULL;
    m_InputRect.makeNan();
 }

◆ loadState()

bool ossimScaleFilter::loadState	(	const ossimKeywordlist &	kwl,
		const char *	prefix = `0`
	)

virtual

Loads the state of this object.

Reimplemented from ossimImageSourceFilter.

Definition at line 908 of file ossimScaleFilter.cpp.

References ossimKeywordlist::find(), FLT_EPSILON, getFilterType(), ossimImageSourceFilter::loadState(), m_InverseScaleFactor, m_ScaleFactor, ossimKeywordNames::SCALE_X_KW, ossimKeywordNames::SCALE_Y_KW, setFilterType(), ossimString::toDouble(), updateGeometry(), ossimDpt::x, and ossimDpt::y.

 {
    ossimString scalex  = kwl.find(prefix,
                                  ossimKeywordNames::SCALE_X_KW);
    ossimString scaley  = kwl.find(prefix,
                                   ossimKeywordNames::SCALE_Y_KW);
    ossimString minify  = kwl.find(prefix,
                                   "minify_type");
    ossimString magnify = kwl.find(prefix,
                                   "magnify_type");
    
    m_ScaleFactor.x = scalex.toDouble();
    m_ScaleFactor.y = scaley.toDouble();
 
    if(fabs(m_ScaleFactor.x) <= FLT_EPSILON)
    {
       m_ScaleFactor.x = 1.0;
    }
    if(fabs(m_ScaleFactor.y) <= FLT_EPSILON)
    {
       m_ScaleFactor.y = 1.0;
    }
 
    m_InverseScaleFactor.x = 1.0/m_ScaleFactor.x;
    m_InverseScaleFactor.y = 1.0/m_ScaleFactor.y;
    
    setFilterType(getFilterType(minify),
                  getFilterType(magnify));
    
    // A change in the scale factor implies a change to the image geometry. If one has been created
    // it needs to be modified:
    updateGeometry();
 
    return ossimImageSourceFilter::loadState(kwl, prefix);
 }

◆ runFilter()

void ossimScaleFilter::runFilter	(	const ossimIrect &	imageRect,
		const ossimIrect &	viewRect
	)

protected

Definition at line 132 of file ossimScaleFilter.cpp.

References ossimRectilinearDataObject::getScalarType(), m_Tile, OSSIM_DOUBLE, OSSIM_FLOAT, OSSIM_NORMALIZED_DOUBLE, OSSIM_NORMALIZED_FLOAT, OSSIM_SINT16, OSSIM_UINT16, OSSIM_UINT32, OSSIM_UINT8, OSSIM_USHORT11, OSSIM_USHORT12, OSSIM_USHORT13, OSSIM_USHORT14, OSSIM_USHORT15, and runFilterTemplate().

Referenced by getTile().

 {
    switch(m_Tile->getScalarType())
    {
       case OSSIM_UINT8:
       {
          runFilterTemplate((ossim_uint8)0,
                            imageRect,
                            viewRect);
          break;
       }
       case OSSIM_USHORT11:
       case OSSIM_USHORT12:
       case OSSIM_USHORT13:
       case OSSIM_USHORT14:
       case OSSIM_USHORT15:
       case OSSIM_UINT16:
       {
          runFilterTemplate((ossim_uint16)0,
                            imageRect,
                            viewRect);
          break;
       }
       case OSSIM_SINT16:
       {
          runFilterTemplate((ossim_sint16)0,
                            imageRect,
                            viewRect);
          break;
       }
       case OSSIM_UINT32:
       {
          runFilterTemplate((ossim_uint32)0,
                            imageRect,
                            viewRect);
          break;
       }
       case OSSIM_DOUBLE:
       case OSSIM_NORMALIZED_DOUBLE:
       {
          runFilterTemplate((ossim_float64)0,
                            imageRect,
                            viewRect);
          break;
       }
       case OSSIM_FLOAT:
       case OSSIM_NORMALIZED_FLOAT:
       {
          runFilterTemplate((ossim_float32)0,
                            imageRect,
                            viewRect);
          break;
       }
       default:
          break;
    }
 }

◆ runFilterTemplate()

template<class T >

void ossimScaleFilter::runFilterTemplate	(	T	dummy,
		const ossimIrect &	imageRect,
		const ossimIrect &	viewRect
	)

protected

Definition at line 193 of file ossimScaleFilter.cpp.

References ossimImageDataFactory::create(), ossimRefPtr< T >::get(), ossimImageData::getBuf(), ossimDataObject::getDataObjectStatus(), ossimImageData::getNumberOfBands(), ossimRectilinearDataObject::getScalarType(), ossimImageSource::getTile(), ossimIrect::height(), ossimImageData::initialize(), ossimImageDataFactory::instance(), ossimImageData::loadTile(), m_BlurFactor, m_ScaleFactor, m_Tile, OSSIM_EMPTY, runHorizontalFilterTemplate(), runVerticalFilterTemplate(), ossimImageData::setOrigin(), ossimImageSourceFilter::theInputConnection, ossimIrect::ul(), ossimRefPtr< T >::valid(), ossimImageData::validate(), ossimIrect::width(), ossimIpt::x, ossimDpt::x, ossimIpt::y, and ossimDpt::y.

Referenced by runFilter().

 {
    ossimRefPtr<ossimImageData> inputData =
       theInputConnection->getTile(imageRect);
 
    if(!inputData.valid()   ||
       !inputData->getBuf() ||
       (inputData->getDataObjectStatus() == OSSIM_EMPTY))
    {
       return;
    }
 
    ossim_int32 h = imageRect.height();
    ossimRefPtr<ossimImageData> tempData =
       ossimImageDataFactory::instance()->create(NULL,
                                                 inputData->getScalarType(),
                                                 inputData->getNumberOfBands(),
                                                 viewRect.width(),
                                                 h);
    tempData->setOrigin(ossimIpt(viewRect.ul().x,
                                 imageRect.ul().y));
    
    tempData->initialize();
    
    if((m_ScaleFactor.x != 1.0)||
       (m_BlurFactor != 1.0))
    {
       runHorizontalFilterTemplate(dummy,
                                   inputData,
                                   tempData);
       tempData->validate();
    }
    else
    {
       tempData->loadTile(inputData.get());
    }
    
    if((m_ScaleFactor.y != 1.0)||
       (m_BlurFactor != 1.0))
    {
       runVerticalFilterTemplate(dummy,
                                 tempData,
                                 m_Tile);
    }
    else
    {
       m_Tile->loadTile(tempData.get());
    }
    
    m_Tile->validate();
 }

◆ runHorizontalFilterTemplate()

template<class T >

void ossimScaleFilter::runHorizontalFilterTemplate	(	T	dummy,
		const ossimRefPtr< ossimImageData > &	input,
		ossimRefPtr< ossimImageData > &	output
	)

protected

Definition at line 385 of file ossimScaleFilter.cpp.

References ossimFilter::filter(), FLT_EPSILON, ossimImageData::getBuf(), getHorizontalFilter(), ossimImageData::getImageRectangle(), ossimImageData::getMaxPix(), ossimImageData::getMinPix(), ossimImageData::getNullPix(), ossimImageData::getNumberOfBands(), ossimFilter::getSupport(), ossimIrect::height(), ossimIrect::lr(), m_BlurFactor, m_InputRect, m_ScaleFactor, m_Tile, ossim::max(), ossim::min(), ossimIrect::ul(), ossimIrect::width(), ossimIpt::x, ossimDpt::x, x, and y.

Referenced by runFilterTemplate().

 {
    ossimIrect viewRect  = output->getImageRectangle();
    ossimIrect imageRect = input->getImageRectangle();
    ossim_int32 vw = viewRect.width();
    ossim_int32 vh = viewRect.height();
    ossim_int32 iw = imageRect.width();
    ossimIpt origin(viewRect.ul());
    ossimIpt imageOrigin(imageRect.ul());
    ossimIpt inputUl = m_InputRect.ul();
    ossimIpt inputLr = m_InputRect.lr();
    
    double scale = 0.0;
    double support = 0.0;
    ossim_int32 x = 0;
    ossim_int32 y = 0;
    ossim_int32 start = 0;
    ossim_int32 stop  = 0;
    ossim_int32 kernelIdx = 0;
    const ossimFilter* filter = getHorizontalFilter();
    ossim_float64 center = 0.0;
    ossim_int32 bandIdx = 0;
    ossim_int32 numberOfBands = m_Tile->getNumberOfBands();
    
    scale = m_BlurFactor*ossim::max(1.0/m_ScaleFactor.x, 1.0);
    
    support=scale*filter->getSupport();
    if (support <= 0.5)
    {
       support = 0.5 + FLT_EPSILON;
       scale = 1.0;
    }
    scale=1.0/scale;
    for(bandIdx = 0; bandIdx < numberOfBands; ++bandIdx)
    {
       T* imageBuf = (T*)input->getBuf(bandIdx);
       T* viewBuf  = (T*)output->getBuf(bandIdx);
       T np        = (T)input->getNullPix(bandIdx);
       T outNp     = (T)output->getNullPix(bandIdx);
       T outMinPix = (T)output->getMinPix(bandIdx);
       T outMaxPix = (T)output->getMaxPix(bandIdx);
       
       for(x = 0; x < vw; ++x)
       {
          center=(origin.x + x+ .5)/m_ScaleFactor.x;
          start=ossim::max((ossim_int32)ossim::round<int>(center-support), (ossim_int32)inputUl.x);
          stop=ossim::min((ossim_int32)ossim::round<int>(center+support), (ossim_int32)inputLr.x);
          ossim_int32 delta = stop-start;
          if (delta <= 0)
          {
             break;
          }
          vector<double> kernel(delta);
          double density=0.0;
          
          for(kernelIdx = 0; kernelIdx < delta; ++kernelIdx)
          {
             double t = scale*(start + kernelIdx -
                               center + .5);
             kernel[kernelIdx] = filter->filter(t,
                                                filter->getSupport());
             density += kernel[kernelIdx];
          }
          if ((density != 0.0) && (density != 1.0))
          {
             /*
               Normalize.
             */
             density=1.0/density;
             for (kernelIdx=0; kernelIdx < delta; kernelIdx++)
                kernel[kernelIdx]*=density;
          }
          ossim_int32 offset       = start  - imageOrigin.x;
          
          T* xptr         = imageBuf + offset;
          T* xCenterptr   = imageBuf + offset;
          T* outptr       = viewBuf  + x;
          
          for(y = 0; y < vh; ++y)
          {
             double result = 0.0;
             density = 0.0;
             if((*xCenterptr) == np)
             {
                *outptr = outNp;
             }
             else
             {
                for(kernelIdx = 0; kernelIdx < (int)kernel.size(); ++kernelIdx)
                {
                   if((*xptr != np)&&
                      (kernel[kernelIdx] != 0.0))
                   {
                      result  += ((double)(*(xptr+kernelIdx))*kernel[kernelIdx]);
                      density += kernel[kernelIdx];
                   }
                }
                if(density != 0.0)
                {
                   result /= density;
                   
                   if(result < outMinPix) result = outMinPix;
                   if(result > outMaxPix) result = outMaxPix;
                   
                   *outptr = (T)result;
                }
                else
                {
                   *outptr = outNp;
                }
             }
             xCenterptr += iw;
             xptr   += iw;
             outptr += vw;
          }
       }
    }
 }

◆ runVerticalFilterTemplate()

template<class T >

void ossimScaleFilter::runVerticalFilterTemplate	(	T	dummy,
		const ossimRefPtr< ossimImageData > &	input,
		ossimRefPtr< ossimImageData > &	output
	)

protected

Definition at line 508 of file ossimScaleFilter.cpp.

References ossimFilter::filter(), FLT_EPSILON, ossimImageData::getBuf(), ossimImageData::getImageRectangle(), ossimImageData::getMaxPix(), ossimImageData::getMinPix(), ossimImageData::getNullPix(), ossimImageData::getNumberOfBands(), ossimFilter::getSupport(), getVerticalFilter(), ossimIrect::height(), ossimIrect::lr(), m_BlurFactor, m_InputRect, m_ScaleFactor, m_Tile, ossim::max(), ossim::min(), ossimIrect::ul(), ossimIrect::width(), x, ossimIpt::y, ossimDpt::y, and y.

Referenced by runFilterTemplate().

 {
    ossimIrect viewRect  = output->getImageRectangle();
    ossimIrect imageRect = input->getImageRectangle();
    ossim_int32 vw = viewRect.width();
    ossim_int32 vh = viewRect.height();
    ossim_int32 iw = imageRect.width();
    ossimIpt origin(viewRect.ul());
    ossimIpt imageOrigin(imageRect.ul());
    ossimIpt inputUl = m_InputRect.ul();
    ossimIpt inputLr = m_InputRect.lr();
    double scale = 0.0;
    double support = 0.0;
    ossim_int32 x = 0;
    ossim_int32 y = 0;
    ossim_int32 start = 0;
    ossim_int32 stop  = 0;
    ossim_int32 kernelIdx = 0;
    const ossimFilter* filter = getVerticalFilter();
    ossim_float64 center = 0.0;
    ossim_int32 bandIdx = 0;
    ossim_int32 numberOfBands = m_Tile->getNumberOfBands();
    
    scale = m_BlurFactor*ossim::max(1.0/m_ScaleFactor.y, 1.0);
    
    support=scale*filter->getSupport();
    if (support <= 0.5)
    {
       support = .5 + FLT_EPSILON;
       scale = 1.0;
    }
    scale=1.0/scale;
 
    for(bandIdx = 0; bandIdx < numberOfBands; ++bandIdx)
    {
       T* imageBuf = (T*)input->getBuf(bandIdx);
       T* viewBuf  = (T*)output->getBuf(bandIdx);
       T np        = (T)input->getNullPix(bandIdx);
       T outNp     = (T)output->getNullPix(bandIdx);
       T outMinPix = (T)output->getMinPix(bandIdx);
       T outMaxPix = (T)output->getMaxPix(bandIdx);
      
       for(y = 0; y < vh; ++y)
       {
          center=(double) ((y + origin.y+0.5)/m_ScaleFactor.y);
          start=ossim::max((ossim_int32)ossim::round<int>(center-support), (ossim_int32)inputUl.y);
          stop=ossim::min((ossim_int32)ossim::round<int>(center+support), (ossim_int32)inputLr.y);
          ossim_int32 delta = stop-start;
          if (delta <= 0)
          {
             break;
          }
          vector<double> kernel(delta);
          double density = 0.0;
          for(kernelIdx = 0; kernelIdx < delta; ++kernelIdx)
          {
             kernel[kernelIdx] = filter->filter(scale*(start + kernelIdx - center + .5),
                                                filter->getSupport());
             density += kernel[kernelIdx];
          }
          if ((density != 0.0) && (density != 1.0))
          {
             /*
               Normalize.
             */
             density=1.0/density;
             for (kernelIdx=0; kernelIdx < delta; kernelIdx++)
                kernel[kernelIdx]*=density;
          }
 
          ossim_int32 offset       = ((start  - imageOrigin.y)*iw);
          ossim_int32 offsetCenter = ((((ossim_int32)center) - imageOrigin.y)*iw);
         
          for(x = 0; x < vw; ++x)
          {
             T* yptr         = imageBuf + offset       + x;
             T* yCenterptr   = imageBuf + offsetCenter + x;
             double result = 0.0;
             density = 0.0;
 
             if((*yCenterptr) == np)
             {
                *viewBuf = outNp;
             }
             else
             {
                for(kernelIdx = 0; kernelIdx < delta; ++kernelIdx)
                {
                   if((*yptr != np)&&
                      (kernel[kernelIdx] != 0.0))
                   {
                      result  += ((*yptr)*kernel[kernelIdx]);
                      density += kernel[kernelIdx];
                   }
                   yptr += iw;
                }
                if(density != 0.0)
                {
                   result /= density;
                  
                   if(result < outMinPix) result = outMinPix;
                   if(result > outMaxPix) result = outMaxPix;
                  
                   *viewBuf = (T)result;
                }
                else
                {
                   *viewBuf = outNp;
                }
             }
             ++viewBuf;
          }
       }
    }
 }

◆ saveState()

bool ossimScaleFilter::saveState	(	ossimKeywordlist &	kwl,
		const char *	prefix = `0`
	)		const

virtual

Saves the state of this object.

Reimplemented from ossimImageSourceFilter.

Definition at line 885 of file ossimScaleFilter.cpp.

References ossimKeywordlist::add(), getFilterTypeAsString(), m_MagnifyFilterType, m_MinifyFilterType, m_ScaleFactor, ossimImageSourceFilter::saveState(), ossimKeywordNames::SCALE_X_KW, ossimKeywordNames::SCALE_Y_KW, ossimDpt::x, and ossimDpt::y.

 {
    kwl.add(prefix,
            ossimKeywordNames::SCALE_X_KW,
            m_ScaleFactor.x,
            true);
    kwl.add(prefix,
            ossimKeywordNames::SCALE_Y_KW,
            m_ScaleFactor.y,
            true);
    kwl.add(prefix,
            "minify_type",
            getFilterTypeAsString(m_MinifyFilterType),
            true);
    kwl.add(prefix,
            "magnify_type",
            getFilterTypeAsString(m_MagnifyFilterType),
            true);
    
    return ossimImageSourceFilter::saveState(kwl, prefix);
 }

◆ scaleRect()

ossimIrect ossimScaleFilter::scaleRect	(	const ossimIrect	input,
		const ossimDpt &	scaleFactor
	)		const

protected

Definition at line 691 of file ossimScaleFilter.cpp.

References ossimIrect::height(), ossimIrect::ul(), ossimIrect::width(), ossimIpt::x, ossimDpt::x, ossimIpt::y, and ossimDpt::y.

 {
    ossimIpt origin(ossim::round<int>(input.ul().x*scaleFactor.x),
                    ossim::round<int>(input.ul().y*scaleFactor.y));
    ossim_int32 w = ossim::round<int>(input.width()*scaleFactor.x);
    ossim_int32 h = ossim::round<int>(input.height()*scaleFactor.y);
 
    if(w < 1) w = 1;
    if(h < 1) h = 1;
    
    return ossimIrect(origin.x,
                      origin.y,
                      origin.x + (w-1),
                      origin.y + (h-1));
 }

◆ setBlurFactor()

void ossimScaleFilter::setBlurFactor ( ossim_float64 blur )

inline

Definition at line 112 of file ossimScaleFilter.h.

       {
          m_BlurFactor = blur;
       }

◆ setFilterType() [1/3]

void ossimScaleFilter::setFilterType ( ossimScaleFilterType filterType )

Definition at line 261 of file ossimScaleFilter.cpp.

Referenced by loadState().

 {
    setFilterType(filterType, filterType);
 }

◆ setFilterType() [2/3]

void ossimScaleFilter::setFilterType	(	ossimScaleFilterType	minifyFilterType,
		ossimScaleFilterType	magnifyFilterType
	)

Definition at line 268 of file ossimScaleFilter.cpp.

References createNewFilter(), m_MagnifyFilter, m_MagnifyFilterType, m_MinifyFilter, and m_MinifyFilterType.

 {
    if(m_MinifyFilter)
    {
       delete m_MinifyFilter;
       m_MinifyFilter = NULL;
    }
    if(m_MagnifyFilter)
    {
       delete m_MagnifyFilter;
       m_MagnifyFilter = NULL;
    }
    
    m_MinifyFilterType  = minifyFilterType;
    m_MagnifyFilterType = magnifyFilterType;
    
    m_MinifyFilter  = createNewFilter(minifyFilterType, m_MinifyFilterType);
    m_MagnifyFilter = createNewFilter(magnifyFilterType, m_MagnifyFilterType);
 }

◆ setFilterType() [3/3]

void ossimScaleFilter::setFilterType	(	const ossimString &	minifyType,
		const ossimString &	magnifyType
	)

inline

Definition at line 80 of file ossimScaleFilter.h.

       {
          setFilterType(getFilterType(minifyType),
                        getFilterType(magnifyType));
       }

◆ setMagnifyFilterType() [1/2]

void ossimScaleFilter::setMagnifyFilterType ( const ossimString & magnifyType )

inline

Definition at line 90 of file ossimScaleFilter.h.

       {
          setMagnifyFilterType(getFilterType(magnifyType));
       }

◆ setMagnifyFilterType() [2/2]

void ossimScaleFilter::setMagnifyFilterType ( ossimScaleFilterType filterType )

inline

Definition at line 99 of file ossimScaleFilter.h.

       {
          setFilterType(m_MinifyFilterType,filterType);
       }

◆ setMinifyFilterType() [1/2]

void ossimScaleFilter::setMinifyFilterType ( const ossimString & minifyType )

inline

Definition at line 86 of file ossimScaleFilter.h.

       {
          setMinifyFilterType(getFilterType(minifyType));
       }

◆ setMinifyFilterType() [2/2]

void ossimScaleFilter::setMinifyFilterType ( ossimScaleFilterType filterType )

inline

Definition at line 94 of file ossimScaleFilter.h.

       {
          setFilterType(filterType,
                        m_MagnifyFilterType);
       }

◆ setScaleFactor()

void ossimScaleFilter::setScaleFactor ( const ossimDpt & scale )

Definition at line 363 of file ossimScaleFilter.cpp.

References FLT_EPSILON, m_InverseScaleFactor, m_ScaleFactor, updateGeometry(), ossimDpt::x, and ossimDpt::y.

 {
    m_ScaleFactor = scale;
    if(fabs(m_ScaleFactor.x) <= FLT_EPSILON)
    {
       m_ScaleFactor.x = 1.0;
    }
    if(fabs(m_ScaleFactor.y) <= FLT_EPSILON)
    {
       m_ScaleFactor.y = 1.0;
    }
 
    m_InverseScaleFactor.x = 1.0/m_ScaleFactor.x;
    m_InverseScaleFactor.y = 1.0/m_ScaleFactor.y;
 
    // A change in the scale factor implies a change to the image geometry. If one has been created
    // it needs to be modified:
    updateGeometry();
 }

◆ updateGeometry()

void ossimScaleFilter::updateGeometry ( )

protected

If this object is maintaining an ossimImageGeometry, this method needs to be called after a scale change so that the geometry's projection is modified accordingly.

Definition at line 949 of file ossimScaleFilter.cpp.

References ossimMapProjection::applyScale(), ossimImageGeometry::getProjection(), m_InverseScaleFactor, m_ScaledGeometry, PTR_CAST, and ossimRefPtr< T >::valid().

Referenced by getImageGeometry(), loadState(), and setScaleFactor().

 {
    if (m_ScaledGeometry.valid())
    {
       // Modify the image geometry's projection with the scale factor before returning geom:
       ossimProjection* proj = m_ScaledGeometry->getProjection();
       ossimMapProjection* mapProj = PTR_CAST(ossimMapProjection, proj);
       if(mapProj)
          mapProj->applyScale(m_InverseScaleFactor, true);
    }
 }

Member Data Documentation

◆ m_BlankTile

ossimRefPtr<ossimImageData> ossimScaleFilter::m_BlankTile

protected

Definition at line 142 of file ossimScaleFilter.h.

Referenced by allocate(), getTile(), and initialize().

◆ m_BlurFactor

ossim_float64 ossimScaleFilter::m_BlurFactor

protected

Definition at line 152 of file ossimScaleFilter.h.

Referenced by getSupport(), getTile(), runFilterTemplate(), runHorizontalFilterTemplate(), and runVerticalFilterTemplate().

◆ m_InputRect

ossimIrect ossimScaleFilter::m_InputRect

protected

Definition at line 151 of file ossimScaleFilter.h.

Referenced by allocate(), initialize(), ossimScaleFilter(), runHorizontalFilterTemplate(), and runVerticalFilterTemplate().

◆ m_InverseScaleFactor

ossimDpt ossimScaleFilter::m_InverseScaleFactor

protected

Definition at line 149 of file ossimScaleFilter.h.

Referenced by getTile(), loadState(), setScaleFactor(), and updateGeometry().

◆ m_MagnifyFilter

ossimFilter* ossimScaleFilter::m_MagnifyFilter

protected

Definition at line 145 of file ossimScaleFilter.h.

Referenced by getHorizontalFilter(), getVerticalFilter(), ossimScaleFilter(), setFilterType(), and ~ossimScaleFilter().

◆ m_MagnifyFilterType

ossimScaleFilterType ossimScaleFilter::m_MagnifyFilterType

protected

Definition at line 147 of file ossimScaleFilter.h.

Referenced by saveState(), and setFilterType().

◆ m_MinifyFilter

ossimFilter* ossimScaleFilter::m_MinifyFilter

protected

Definition at line 144 of file ossimScaleFilter.h.

Referenced by getHorizontalFilter(), getVerticalFilter(), ossimScaleFilter(), setFilterType(), and ~ossimScaleFilter().

◆ m_MinifyFilterType

ossimScaleFilterType ossimScaleFilter::m_MinifyFilterType

protected

Definition at line 146 of file ossimScaleFilter.h.

Referenced by saveState(), and setFilterType().

◆ m_ScaledGeometry

ossimRefPtr<ossimImageGeometry> ossimScaleFilter::m_ScaledGeometry

protected

The input image geometry, altered by the scale.

Definition at line 153 of file ossimScaleFilter.h.

Referenced by getImageGeometry(), and updateGeometry().

◆ m_ScaleFactor

ossimDpt ossimScaleFilter::m_ScaleFactor

protected

Definition at line 148 of file ossimScaleFilter.h.

Referenced by getBoundingRect(), getHorizontalFilter(), getImageGeometry(), getSupport(), getTile(), getVerticalFilter(), loadState(), runFilterTemplate(), runHorizontalFilterTemplate(), runVerticalFilterTemplate(), saveState(), and setScaleFactor().

◆ m_Tile

ossimRefPtr<ossimImageData> ossimScaleFilter::m_Tile

protected

Definition at line 143 of file ossimScaleFilter.h.

Referenced by allocate(), getTile(), initialize(), runFilter(), runFilterTemplate(), runHorizontalFilterTemplate(), and runVerticalFilterTemplate().

◆ m_TileSize

ossimIpt ossimScaleFilter::m_TileSize

protected

Definition at line 150 of file ossimScaleFilter.h.

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

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

◆ ossimScaleFilterType

Constructor & Destructor Documentation

◆ ossimScaleFilter() [1/2]

◆ ossimScaleFilter() [2/2]

◆ ~ossimScaleFilter()

Member Function Documentation

◆ allocate()

◆ createNewFilter()

◆ getBlurFactor()

◆ getBoundingRect()

◆ getDecimationFactor()

◆ getDecimationFactors()

◆ getFilterType()

◆ getFilterTypeAsString()

◆ getHorizontalFilter()

◆ getImageGeometry()

◆ getMagnifyFilterTypeAsString()

◆ getMinifyFilterTypeAsString()

◆ getNumberOfDecimationLevels()

◆ getScaleFactor()

◆ getSupport()

◆ getTile()

◆ getVerticalFilter()

◆ initialize()

◆ loadState()

◆ runFilter()

◆ runFilterTemplate()

◆ runHorizontalFilterTemplate()

◆ runVerticalFilterTemplate()

◆ saveState()

◆ scaleRect()

◆ setBlurFactor()

◆ setFilterType() [1/3]

◆ setFilterType() [2/3]

◆ setFilterType() [3/3]

◆ setMagnifyFilterType() [1/2]

◆ setMagnifyFilterType() [2/2]

◆ setMinifyFilterType() [1/2]

◆ setMinifyFilterType() [2/2]

◆ setScaleFactor()

◆ updateGeometry()

Member Data Documentation

◆ m_BlankTile

◆ m_BlurFactor

◆ m_InputRect

◆ m_InverseScaleFactor

◆ m_MagnifyFilter

◆ m_MagnifyFilterType

◆ m_MinifyFilter

◆ m_MinifyFilterType

◆ m_ScaledGeometry

◆ m_ScaleFactor

◆ m_Tile

◆ m_TileSize