#include <ossimImageRenderer.h>

Inheritance diagram for ossimImageRenderer:

Classes
class	ossimRendererSubRectInfo

Public Member Functions
	ossimImageRenderer ()

	ossimImageRenderer (ossimImageSource inputSource, ossimImageViewTransform imageViewTrans=NULL)

virtual	~ossimImageRenderer ()

virtual ossimString	getLongName () const

virtual ossimString	getShortName () const

virtual ossimRefPtr< ossimImageData >	getTile (const ossimIrect &origin, ossim_uint32 resLevel=0)
	the resampler will need the tile request to come from the view. More...

virtual void	initialize ()

virtual ossimIrect	getBoundingRect (ossim_uint32 resLevel=0) const
	m_Resampler will adjust the rect to whatever the view is. More...

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

virtual bool	saveState (ossimKeywordlist &kwl, const char *prefix=0) const
	Method to save the state of an object to a keyword list. More...

virtual bool	loadState (const ossimKeywordlist &kwl, const char *prefix=0)
	Method to the load (recreate) the state of an object from a keyword list. More...

void	setImageViewTransform (ossimImageViewTransform *transform)

ossimImageViewTransform *	getImageViewTransform ()

virtual ossimRefPtr< ossimImageGeometry >	getImageGeometry ()
	Returns instance to the input image geometry. More...

virtual bool	setView (ossimObject *baseObject)

ossimFilterResampler *	getResampler ()

virtual ossimObject *	getView ()

virtual const ossimObject *	getView () const

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...

virtual void	setAutoUpdateInputTransformFlag (bool flag)

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

void	setMaxLevelsToCompute (ossim_uint32 maxLevels)

ossim_uint32	getMaxLevelsToCompute () const

void	connectInputEvent (ossimConnectionEvent &event)

void	disconnectInputEvent (ossimConnectionEvent &event)

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

virtual void	enableSource ()
	Enables source. More...

virtual void	disableSource ()
	Disables source. More...

virtual void	setEnableFlag (bool flag)
	Sets the enable flag. More...

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...

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	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 bool	getEnableFlag () const

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	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

Public Member Functions inherited from ossimViewInterface
	ossimViewInterface ()

	ossimViewInterface (ossimObject *base)

virtual	~ossimViewInterface ()

virtual void	refreshView ()

ossimObject *	getBaseObject ()

Private Member Functions
void	recursiveResample (ossimRefPtr< ossimImageData > outputData, const ossimRendererSubRectInfo &rectInfo, ossim_uint32 level)

void	fillTile (ossimRefPtr< ossimImageData > outputData, const ossimRendererSubRectInfo &rectInfo)

ossimIrect	getBoundingImageRect () const

void	checkIVT ()
	this is called on a property event and on input connection changes. More...

void	initializeBoundingRects ()
	Initializes m_inputR0Rect and m_viewBoundingRect and sets m_rectsDirty appropriately. More...

ossimRefPtr< ossimImageData >	getTileAtResLevel (const ossimIrect &boundingRect, ossim_uint32 resLevel)

template<class T >
void	resampleTileToDecimation (T dummyVariable, ossimRefPtr< ossimImageData > result, ossimRefPtr< ossimImageData > tile, ossim_uint32 multiplier)

long	computeClosestResLevel (const std::vector< ossimDpt > &decimationFactors, double scale) const

void	stretchQuadOut (const ossimDpt &amount, ossimDpt &ul, ossimDpt &ur, ossimDpt &lr, ossimDpt &ll)

void	allocate ()
	Called on first getTile, will initialize all data needed. More...

void	deallocate ()
	Deletes all allocated tiles. More...

Private Attributes
ossimFilterResampler *	m_Resampler

ossimRefPtr< ossimImageData >	m_BlankTile

ossimRefPtr< ossimImageData >	m_Tile

ossimRefPtr< ossimImageData >	m_TemporaryBuffer

ossim_uint32	m_StartingResLevel
	This is going to allow us to chain multiple renderers together. More...

ossimRefPtr< ossimImageViewTransform >	m_ImageViewTransform

ossimIrect	m_inputR0Rect

ossimIrect	m_viewRect

bool	m_rectsDirty

ossim_uint32	m_MaxRecursionLevel

bool	m_AutoUpdateInputTransform

ossim_uint32	m_MaxLevelsToCompute

ossimPolyArea2d	m_viewArea

bool	m_crossesDateline

Additional Inherited Members
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

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 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

Protected Attributes inherited from ossimViewInterface
ossimObject *	theObject

Detailed Description

Definition at line 26 of file ossimImageRenderer.h.

Constructor & Destructor Documentation

◆ ossimImageRenderer() [1/2]

ossimImageRenderer::ossimImageRenderer ( )

Definition at line 1039 of file ossimImageRenderer.cpp.

References m_ImageViewTransform, m_Resampler, and ossimViewInterface::theObject.

 :
 ossimImageSourceFilter(),
 ossimViewInterface(0),
 m_Resampler(0),
 m_BlankTile(0),
 m_Tile(0),
 m_TemporaryBuffer(0),
 m_StartingResLevel(0),
 m_ImageViewTransform(0),
 m_inputR0Rect(),
 m_viewRect(),
 m_rectsDirty(true),
 m_MaxRecursionLevel(5),
 m_AutoUpdateInputTransform(true),
 m_MaxLevelsToCompute(999999) // something large so it will always compute
 {
    ossimViewInterface::theObject = this;
    m_Resampler = new ossimFilterResampler();
    m_ImageViewTransform = new ossimImageViewProjectionTransform;
 }

◆ ossimImageRenderer() [2/2]

ossimImageRenderer::ossimImageRenderer	(	ossimImageSource *	inputSource,
		ossimImageViewTransform *	imageViewTrans = `NULL`
	)

Definition at line 1061 of file ossimImageRenderer.cpp.

References m_ImageViewTransform, m_Resampler, ossimViewInterface::theObject, and ossimRefPtr< T >::valid().

    : ossimImageSourceFilter(inputSource),
      ossimViewInterface(0),
      m_Resampler(0),
      m_BlankTile(0),
      m_Tile(0),
      m_TemporaryBuffer(0),
      m_StartingResLevel(0),
      m_ImageViewTransform(imageViewTrans),
      m_inputR0Rect(),
      m_viewRect(),
      m_rectsDirty(true),
      m_MaxRecursionLevel(5),
      m_AutoUpdateInputTransform(true),
      m_MaxLevelsToCompute(999999) // something large so it will always compute
 {
    ossimViewInterface::theObject = this;
    m_Resampler = new ossimFilterResampler();
    if(!m_ImageViewTransform.valid())
    {
       m_ImageViewTransform = new ossimImageViewProjectionTransform;
    }
 }

◆ ~ossimImageRenderer()

ossimImageRenderer::~ossimImageRenderer ( )

virtual

Definition at line 1086 of file ossimImageRenderer.cpp.

References m_ImageViewTransform, and m_Resampler.

 {
   m_ImageViewTransform = 0;
 
    if(m_Resampler)
    {
       delete m_Resampler;
       m_Resampler = 0;
    }
 }

Member Function Documentation

◆ allocate()

void ossimImageRenderer::allocate ( )

private

Called on first getTile, will initialize all data needed.

Definition at line 1764 of file ossimImageRenderer.cpp.

References ossimImageDataFactory::create(), deallocate(), ossimImageData::initialize(), ossimImageDataFactory::instance(), m_BlankTile, m_Tile, and ossimImageSourceFilter::theInputConnection.

 {
    deallocate();
 
    if(theInputConnection)
    {
       m_Tile = ossimImageDataFactory::instance()->create(this, this);
       m_BlankTile  = ossimImageDataFactory::instance()->create(this, this);
       
       m_Tile->initialize();
    }
 }

◆ checkIVT()

void ossimImageRenderer::checkIVT ( )

private

this is called on a property event and on input connection changes.

Definition at line 2037 of file ossimImageRenderer.cpp.

References ossimRefPtr< T >::get(), ossimImageViewProjectionTransform::getImageGeometry(), ossimImageSource::getImageGeometry(), ossimConnectableObject::getInput(), ossimSource::isSourceEnabled(), ossimImageViewTransform::isValid(), m_ImageViewTransform, and PTR_CAST.

Referenced by connectInputEvent(), getImageGeometry(), initialize(), propertyEvent(), setEnableFlag(), and setImageViewTransform().

 {
    if(!isSourceEnabled())
       return;
 
    // Check validity of the IVT:
    if (m_ImageViewTransform->isValid())
       return;
 
    // Detected uninitialized IVT. We are only concerned with projection IVTs (IVPTs) so 
    // make sure that's what we're working with:
    ossimImageViewProjectionTransform* ivpt = 
                    dynamic_cast<ossimImageViewProjectionTransform*>(m_ImageViewTransform.get()); 
    ossimImageSource* inputSrc = PTR_CAST(ossimImageSource, getInput(0));
 
    if(!ivpt || !inputSrc) 
       return; // nothing to do here yet.
 
    // Fetch the input image geometry from the IVPT to see if one needs to be established:
    ossimRefPtr<ossimImageGeometry> inputGeom = ivpt->getImageGeometry();
    if ( !inputGeom )
    {
       // Ask the input source for a geometry:
       inputGeom = inputSrc->getImageGeometry();
       if ( !inputGeom )
       {
          if(traceDebug())
          {
             ossimNotify(ossimNotifyLevel_WARN)<<"ossimImageRenderer::checkTransform() -- "
             "No input image geometry could be established for this renderer."<<endl;
          }
          return;
       }
       ivpt->setImageGeometry( inputGeom.get() );
       m_rectsDirty = true;
    }
 
    // Now check the output view geometry:
    ossimRefPtr<ossimImageGeometry> outputGeom = ivpt->getViewGeometry();
    if (!outputGeom)
    {
       ossimRefPtr<ossimImageGeometry> myOutGeom = new ossimImageGeometry;
 
       //---
       // If the input geometry sports a map projection instead of a 3D
       // projector, use the same map projection for the view.
       // 
       // Note: Don't use map projections with model transforms as they don't
       // allow for changing resolution.
       //---
       const ossimProjection*  inputProj = inputGeom->getProjection();
       const ossimMapProjection* mapProj = PTR_CAST(ossimMapProjection, inputProj);
       if (mapProj && !mapProj->hasModelTransform() )
       {
          ossimProjection* my_proj = PTR_CAST(ossimProjection, mapProj->dup());
          myOutGeom->setProjection(my_proj);
       }
       else 
       {
          // The input geometry uses a 3D projection, so let's default here to a
          // ossimEquDistCylProjection for the view:
          ossimMapProjection* myMapProj = new ossimEquDistCylProjection;
          ossimDpt meters = inputGeom->getMetersPerPixel();
          double GSD = (meters.x + meters.y)/2.0;
          meters.x = GSD;
          meters.y = GSD;
          if(inputProj)
          {
             //---
             // Update the map projection.  Since ossimMapProjection::setOrigin calls
             // ossimMapProjection::update we do that before setUlTiePoints as it in
             // turn calls setUlEastingNorthing(forward(gpt)) which depends on the orgin.
             //---
             myMapProj->setOrigin(inputProj->origin());
             myMapProj->setUlTiePoints( inputProj->origin() );
 
          }
          myMapProj->setMetersPerPixel(meters);
          myOutGeom->setProjection(myMapProj);
       }
       
       // Set up our IVT with the new output geometry:
       ivpt->setViewGeometry(myOutGeom.get());
 
       // Must reinitialize bounding rects before calling ossimImageGeometry::setImageSize().
       initializeBoundingRects();
 
       // Set the size on the ossimImageGeometry.
       ossimIrect rect;
       getBoundingRect(rect, 0);
       myOutGeom->setImageSize( rect.size() );
    }
 
    if ( m_rectsDirty )
    {
       initializeBoundingRects();
    }
 }

◆ computeClosestResLevel()

long ossimImageRenderer::computeClosestResLevel	(	const std::vector< ossimDpt > &	decimationFactors,
		double	scale
	)		const

private

Definition at line 1523 of file ossimImageRenderer.cpp.

References x.

 {
    long result = 0;
    long upper  = (long)decimationFactors.size();
    bool done   = false;
    
    if(upper > 1)
    {
       while((result < upper)&&!done)
       {
          if(scale < decimationFactors[result].x)
          {
             ++result;
          }
          else
          {
             done = true;
          }
       }
       
       // now use the higher res level and resample down
       //
       if(result)
       {
          --result;
       }
    }
    return result;
 }

◆ connectInputEvent()

void ossimImageRenderer::connectInputEvent ( ossimConnectionEvent & event )

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 1940 of file ossimImageRenderer.cpp.

References checkIVT(), ossimConnectableObject::getInput(), initialize(), m_ImageViewTransform, PTR_CAST, ossimImageSourceFilter::theInputConnection, and ossimRefPtr< T >::valid().

 {
    theInputConnection = PTR_CAST(ossimImageSource, getInput(0));
    if(!m_ImageViewTransform.valid())
       m_ImageViewTransform  = new ossimImageViewProjectionTransform;
    
    checkIVT();
    initialize();
 }

◆ deallocate()

void ossimImageRenderer::deallocate ( )

private

Deletes all allocated tiles.

Definition at line 1757 of file ossimImageRenderer.cpp.

References m_BlankTile, m_TemporaryBuffer, and m_Tile.

Referenced by allocate(), and initialize().

 {
    m_Tile            = 0;
    m_BlankTile       = 0;
    m_TemporaryBuffer = 0;
 }

◆ disableSource()

void ossimImageRenderer::disableSource ( )

virtual

Disables source.

Overrides ossimSource::disableSource so bounding rects are recomputed on state change.

Reimplemented from ossimSource.

Definition at line 2555 of file ossimImageRenderer.cpp.

References ossimSource::isSourceEnabled(), and setEnableFlag().

 {
    if ( isSourceEnabled() )
    {
       setEnableFlag( false );
    }
 }

◆ disconnectInputEvent()

void ossimImageRenderer::disconnectInputEvent ( ossimConnectionEvent & event )

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 1950 of file ossimImageRenderer.cpp.

References ossimRefPtr< T >::get(), m_ImageViewTransform, ossimImageViewProjectionTransform::setImageGeometry(), and ossimImageSourceFilter::theInputConnection.

 {
    ossimImageViewProjectionTransform* ivpt = 
                    dynamic_cast<ossimImageViewProjectionTransform*>(m_ImageViewTransform.get()); 
    if(ivpt)
       ivpt->setImageGeometry(0);
    
    theInputConnection = 0;
 }

◆ enableSource()

void ossimImageRenderer::enableSource ( )

virtual

Enables source.

Overrides ossimSource::enableSource so bounding rects are recomputed on state change.

Reimplemented from ossimSource.

Definition at line 2547 of file ossimImageRenderer.cpp.

References ossimSource::isSourceEnabled(), and setEnableFlag().

 {
    if ( isSourceEnabled() == false )
    {
       setEnableFlag( true );
    }
 }

◆ fillTile()

void ossimImageRenderer::fillTile	(	ossimRefPtr< ossimImageData >	outputData,
		const ossimRendererSubRectInfo &	rectInfo
	)

private

Definition at line 1348 of file ossimImageRenderer.cpp.

References ossimImageRenderer::ossimRendererSubRectInfo::getAbsValueImageToViewScales(), ossimImageData::getBuf(), ossimDataObject::getDataObjectStatus(), ossimImageSource::getDecimationFactor(), ossimFilterResampler::getKernelSupport(), ossimImageSource::getNumberOfDecimationLevels(), getTileAtResLevel(), ossimImageRenderer::ossimRendererSubRectInfo::getViewRect(), ossimDpt::hasNans(), ossimDrect::height(), ossimImageRenderer::ossimRendererSubRectInfo::imageHasNans(), ossimDrect::lr(), ossimImageRenderer::ossimRendererSubRectInfo::m_Ill, ossimImageRenderer::ossimRendererSubRectInfo::m_Ilr, m_inputR0Rect, ossimImageRenderer::ossimRendererSubRectInfo::m_Iul, ossimImageRenderer::ossimRendererSubRectInfo::m_Iur, m_Resampler, m_StartingResLevel, ossimDpt::makeNan(), OSSIM_EMPTY, OSSIM_NULL, ossimFilterResampler::resample(), RSET_SEARCH_THRESHHOLD, ossimFilterResampler::setBoundingInputRect(), ossimFilterResampler::setScaleFactor(), status, ossimImageSourceFilter::theInputConnection, ossimDrect::ul(), ossimRefPtr< T >::valid(), ossimDrect::width(), ossimDpt::x, and ossimDpt::y.

Referenced by recursiveResample().

 {
    if(!outputData.valid() || !outputData->getBuf() || rectInfo.imageHasNans())
    {
       return;
    }
    ossimDrect vrect = rectInfo.getViewRect();
    
    ossimDpt imageToViewScale = rectInfo.getAbsValueImageToViewScales();
    
    if(imageToViewScale.hasNans()) return;
    
    ossimDpt tile_size = ossimDpt(vrect.width(), vrect.height());
    double kernelSupportX, kernelSupportY;
    
    double resLevelX = log( 1.0 / imageToViewScale.x )/ log( 2.0 );
    double resLevelY = log( 1.0 / imageToViewScale.y )/ log( 2.0 );
    double resLevel0 = resLevelX < resLevelY ? resLevelX : resLevelY;
    long closestFitResLevel = (long)floor( resLevel0 );
    
    //double averageScale = (imageToViewScale.x + imageToViewScale.y) / 2.0;
    //long closestFitResLevel = (long)floor( log( 1.0 / averageScale )/ log( 2.0 ) );
    
    ossim_uint32 resLevel = closestFitResLevel<0 ? 0:closestFitResLevel;
    resLevel += m_StartingResLevel;
 
    //---
    // ESH 02/2009: If requested resLevel is too high, let's lower it to one
    // that is ok.
    //---
 #if 0
    const ossim_uint32 NUM_LEVELS = theInputConnection->getNumberOfDecimationLevels();
    if ( (NUM_LEVELS > 0) && (resLevel >=  NUM_LEVELS) )
    {
       resLevel = NUM_LEVELS - 1;
    }
 #endif
    //---
    // ESH 11/2008: Check the rset at the calculated resLevel to see
    // if it has the expected decimation factor. It it does, we can 
    // use this rset and assume it is at resLevel.
    //--- 
    ossimDpt decimation;
    decimation.makeNan(); // initialize to nan.
    theInputConnection->getDecimationFactor(resLevel, decimation);
    double requestScale = 1.0 / (1<<resLevel);
    double closestScale = decimation.hasNans() ? requestScale : decimation.x;
 
 #if 0
    double differenceTest = 0.0;
    if (closestScale != 0.0)
    {
       differenceTest = (1.0/closestScale) - (1.0/requestScale);
    }
 
    //---
    // ESH 11/2008: Add in threshold test so search only happens when 
    //              necessary.
    // We do an rset search if 1 of 2 conditions is met: either
    //   1) the rset is really different in size from the requested size, or
    //   2) they're similar in size, and the actual rset is smaller than 
    //      the requested size.
    //---
    if ( (fabs(differenceTest) > RSET_SEARCH_THRESHHOLD) || 
         ((fabs(differenceTest) < RSET_SEARCH_THRESHHOLD) &&
          (differenceTest < 0.0) ) )
    {
       //---
       // ESH 11/2008: We test for the best rset. We assume 
       // that decimation level always decreases as resLevel increases, so 
       // the search can end before testing all rsets.
       //---
       ossim_uint32 savedResLevel = resLevel;
       closestScale = 1.0; // resLevel 0
       resLevel = 0;
       ossim_uint32 i;
       for( i=1; i<NUM_LEVELS; ++i )
       {
          theInputConnection->getDecimationFactor(i, decimation);
          if(decimation.hasNans() == false )
          {
             double testDiscrepancy = decimation.x - requestScale;
             if ( testDiscrepancy < 0.0 ) // we're done
             {
                break;
             }
             else
             {
                closestScale = decimation.x;
                resLevel = i;
             }
          }
          else // use the default value
          {
             closestScale = requestScale;
             resLevel = savedResLevel;
             break;
          }
       }
    }
 #endif
    ossimDpt nul(rectInfo.m_Iul.x*closestScale,
                 rectInfo.m_Iul.y*closestScale);
    ossimDpt nll(rectInfo.m_Ill.x*closestScale,
                 rectInfo.m_Ill.y*closestScale);
    ossimDpt nlr(rectInfo.m_Ilr.x*closestScale,
                 rectInfo.m_Ilr.y*closestScale);
    ossimDpt nur(rectInfo.m_Iur.x*closestScale,
                 rectInfo.m_Iur.y*closestScale);
    
    m_Resampler->getKernelSupport( kernelSupportX, kernelSupportY );
    
    ossimDrect boundingRect = ossimDrect( nul, nll, nlr, nur );
    
 
    boundingRect = ossimIrect((ossim_int32)floor(boundingRect.ul().x - (kernelSupportX)-.5),
                              (ossim_int32)floor(boundingRect.ul().y - (kernelSupportY)-.5),
                              (ossim_int32)ceil (boundingRect.lr().x + (kernelSupportX)+.5),
                              (ossim_int32)ceil (boundingRect.lr().y + (kernelSupportY)+.5));
    
    ossimDrect requestRect = boundingRect;
    
    ossimRefPtr<ossimImageData> data = getTileAtResLevel(requestRect, resLevel);
    
    ossimDataObjectStatus status = OSSIM_NULL;
    if( data.valid() )
    {
       status = data->getDataObjectStatus();
    }
    if( (status == OSSIM_NULL) || (status == OSSIM_EMPTY) )
    {
       return;
    }
    
    if((boundingRect.width() <2)&&(boundingRect.height()<2))
    {
               
 //    return;
    }// std::cout << "SMALL RECT!!!!!!\n";
    else
    {
      ossimDrect inputRect = m_inputR0Rect;
      inputRect = inputRect*ossimDpt(closestScale, closestScale);
      m_Resampler->setBoundingInputRect(inputRect);
      
      double denominatorY = 1.0;
      if(tile_size.y > 2)
      {
         denominatorY = tile_size.y-1.0;
      }
      
      ossimDpt newScale( imageToViewScale.x / closestScale,
                        imageToViewScale.y / closestScale );
      m_Resampler->setScaleFactor(newScale);
      
 
   //std::cout << "SPLIT VIEW RECT: " << vrect << std::endl;
   //std::cout << "VIEW RECT: " << outputData->getImageRectangle() << std::endl;
 
 
      m_Resampler->resample(data,
                            outputData,
                            vrect,
                            nul,
                            nur,
                            ossimDpt( ( (nll.x - nul.x)/denominatorY ),
                                      ( (nll.y - nul.y)/denominatorY ) ),
                            ossimDpt( ( (nlr.x - nur.x)/denominatorY ),
                                      ( (nlr.y - nur.y)/denominatorY ) ),
                            tile_size);
    }
    
 }

◆ getBoundingImageRect()

ossimIrect ossimImageRenderer::getBoundingImageRect ( ) const

private

◆ getBoundingRect() [1/2]

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

virtual

m_Resampler will adjust the rect to whatever the view is.

So it will project the full image rect onto the view and return the upright bounding rect.

Reimplemented from ossimImageSource.

Definition at line 1554 of file ossimImageRenderer.cpp.

 {
    //---
    // 01 November 2011:
    // Backed out expand code as the ossimImageViewProjectionTransform::getImageToViewBounds
    // does not handle image on the edge of international date line. D. Burken
    //---
    
    // The input bounding rect as returned here corresponds to "pixel-is-point", i.e., the center
    // of the pixel area for the corners and not the edges which extend 1/2 pixel in all 
    // directions. Because the view is probably a different GSD, first expand the input
    // bounding rect to the edge before transforming to a view rect. Then shrink the view rect by
    // 1/2 pixel to get it to the pixel center (OSSIM convention for bounding rect -- this may 
    // need to be revisited in light of the need to match edges, not pixel centers, OLK 09/11).
 
    // Code functionality moved to below method. (drb - 08 Nov. 2011)
    
    ossimIrect result;
    getBoundingRect( result, resLevel );
    return result;
 }

◆ getBoundingRect() [2/2]

void ossimImageRenderer::getBoundingRect	(	ossimIrect &	rect,
		ossim_uint32	resLevel = `0`
	)		const

virtual

Gets the bounding rectangle of the source.

This is the output view bounds.

Parameters

rect	Initialized with bounding rectangle by this.
resLevel	Reduced resolution level if applicable.

Reimplemented from ossimImageSource.

Definition at line 1576 of file ossimImageRenderer.cpp.

References ossimImageSource::getBoundingRect(), ossimSource::isSourceEnabled(), m_viewRect, ossimIrect::makeNan(), and ossimImageSourceFilter::theInputConnection.

 {
    if ( isSourceEnabled() )
    {
       rect = m_viewRect;
    }
    else if ( theInputConnection )
    {
       rect = theInputConnection->getBoundingRect(resLevel);
    }
    else
    {
       rect.makeNan();
    }
 #if 0 /* Please leave for debug. */
    if(traceDebug())
    {
       ossimNotify(ossimNotifyLevel_DEBUG)
          << "ossimImageRenderer::getBoundingRect(rect, resLevel) debug:\nbounds  = "
          << rect << "\n";
    }
 #endif  
 }

◆ getDecimationFactor()

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

virtual

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 2136 of file ossimImageRenderer.cpp.

References ossimImageSource::getDecimationFactor(), and ossimSource::isSourceEnabled().

 {
    if(isSourceEnabled())
    {
       result = ossimDpt(1,1);
    }
    else
    {
       ossimImageSourceFilter::getDecimationFactor(resLevel,
                     result);
    }
 }

◆ getDecimationFactors()

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

virtual

Definition at line 2150 of file ossimImageRenderer.cpp.

References ossimImageSource::getDecimationFactors(), and ossimSource::isSourceEnabled().

 {
    if(isSourceEnabled())
    {
       decimations.push_back(ossimDpt(1,1));
    }
    else
    {
       ossimImageSourceFilter::getDecimationFactors(decimations);
    }
 }

◆ getImageGeometry()

ossimRefPtr< ossimImageGeometry > ossimImageRenderer::getImageGeometry ( )

virtual

Returns instance to the input image geometry.

This may be a NULL pointer. This is only valid if the IVT is a projection type IVT (IVPT)

Reimplemented from ossimImageSource.

Definition at line 1916 of file ossimImageRenderer.cpp.

References checkIVT(), ossimRefPtr< T >::get(), ossimImageSource::getImageGeometry(), ossimImageViewProjectionTransform::getViewGeometry(), ossimSource::isSourceEnabled(), ossimImageViewTransform::isValid(), m_ImageViewTransform, ossimImageSourceFilter::theInputConnection, and ossimRefPtr< T >::valid().

 {
    ossimRefPtr<ossimImageGeometry> geom = 0;
    if (isSourceEnabled())
    {
       // Make sure the IVT was properly initialized
       if (m_ImageViewTransform.valid() && !m_ImageViewTransform->isValid())
          checkIVT();
 
       ossimImageViewProjectionTransform* ivpt =
             dynamic_cast<ossimImageViewProjectionTransform*>(m_ImageViewTransform.get());
       if (ivpt)
       {
          // we need to return the right side since the geometry changed to a view geometry
          geom = ivpt->getViewGeometry();
       }
    }
    else if (theInputConnection)
    {
       geom = theInputConnection->getImageGeometry();
    }
    return geom;
 }

◆ getImageViewTransform()

ossimImageViewTransform* ossimImageRenderer::getImageViewTransform ( )

inline

Definition at line 84 of file ossimImageRenderer.h.

Referenced by ossimIvtGeomXformVisitor::visit().

84 { return m_ImageViewTransform.get(); }

ossimRefPtr::get

T * get()

Definition: ossimRefPtr.h:83

ossimImageRenderer::m_ImageViewTransform

ossimRefPtr< ossimImageViewTransform > m_ImageViewTransform

Definition: ossimImageRenderer.h:329

◆ getLongName()

ossimString ossimImageRenderer::getLongName ( ) const

virtual

Reimplemented from ossimObject.

Definition at line 2515 of file ossimImageRenderer.cpp.

 {
    return ossimString("Image Renderer");
 }

◆ getMaxLevelsToCompute()

ossim_uint32 ossimImageRenderer::getMaxLevelsToCompute ( ) const

Definition at line 2368 of file ossimImageRenderer.cpp.

References m_MaxLevelsToCompute.

 {
    return m_MaxLevelsToCompute;
 }

◆ getNumberOfDecimationLevels()

ossim_uint32 ossimImageRenderer::getNumberOfDecimationLevels ( ) const

virtual

Will return the number of resolution levels.

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

Reimplemented from ossimImageSource.

Definition at line 2162 of file ossimImageRenderer.cpp.

References ossimImageSource::getNumberOfDecimationLevels(), and ossimSource::isSourceEnabled().

 {
    if(isSourceEnabled())
    {
       return 1;
    }
    
    return ossimImageSourceFilter::getNumberOfDecimationLevels();
 }

◆ getProperty()

ossimRefPtr< ossimProperty > ossimImageRenderer::getProperty ( const ossimString & name ) const

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 1991 of file ossimImageRenderer.cpp.

References ossimProperty::clearChangeType(), ossimFilterResampler::getFilterTypes(), ossimFilterResampler::getMinifyFilterTypeAsString(), ossimImageSourceFilter::getProperty(), m_Resampler, ossimProperty::setCacheRefreshBit(), and ossimProperty::setReadOnlyFlag().

 {
    ossimString tempName = name;
    
    if((tempName == "Filter type")||
       (tempName == "filter_type"))
    {
       std::vector<ossimString> filterNames;
       m_Resampler->getFilterTypes(filterNames);
       
       ossimStringProperty* stringProp = new ossimStringProperty("filter_type",
                         m_Resampler->getMinifyFilterTypeAsString(),
                         false,
                         filterNames);
       stringProp->clearChangeType();
       stringProp->setReadOnlyFlag(false);
       stringProp->setCacheRefreshBit();
       
       return stringProp;
    }
 //   else if(tempName == "Blur factor")
 //   {
 //      ossimNumericProperty* numericProperty = new ossimNumericProperty("Blur factor",
 //                                                                       ossimString::toString((double)m_Resampler->getBlurFactor()));
    
 //      numericProperty->setConstraints(0.0, 50.0);
 //      numericProperty->setNumericType(ossimNumericProperty::ossimNumericPropertyType_FLOAT64);
 //      numericProperty->setCacheRefreshBit();
    
 //      return numericProperty;
 //   }
    
    return ossimImageSourceFilter::getProperty(name);
 }

◆ getPropertyNames()

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

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 2026 of file ossimImageRenderer.cpp.

References ossimImageSourceFilter::getPropertyNames().

 {
   ossimImageSourceFilter::getPropertyNames(propertyNames);
 
   propertyNames.push_back("Filter type");
 //  propertyNames.push_back("Blur factor");
 }

◆ getResampler()

ossimFilterResampler* ossimImageRenderer::getResampler ( )

inline

Definition at line 91 of file ossimImageRenderer.h.

Referenced by ossimKakaduJpipHandler::getTile().

91 { return m_Resampler; }

ossimImageRenderer::m_Resampler

ossimFilterResampler * m_Resampler

Definition: ossimImageRenderer.h:314

◆ getShortName()

ossimString ossimImageRenderer::getShortName ( ) const

virtual

Reimplemented from ossimObject.

Definition at line 2520 of file ossimImageRenderer.cpp.

 {
    return ossimString("Image Renderer"); 
 }

◆ getTile()

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

virtual

the resampler will need the tile request to come from the view.

It will use the view to transoform this to world and then use the image's projection to get it into final line sample. This way the resampler can fill a tile width by height on the screen correctly.

Reimplemented from ossimImageSource.

Definition at line 1097 of file ossimImageRenderer.cpp.

Referenced by ossimKakaduJpipHandler::getTile().

 {
    // std::cout << "_________________________\n";
    static const char MODULE[] = "ossimImageRenderer::getTile";
    if(traceDebug())
    {
       ossimNotify(ossimNotifyLevel_DEBUG)
          << MODULE << " Requesting view rect = "
          << tileRect << endl;
    }
    // long w = tileRect.width();
    // long h = tileRect.height();
    // ossimIpt origin = tileRect.ul();
    
    if( !m_BlankTile.valid() || !m_Tile.valid() )
    {
       allocate();
       if ( !m_BlankTile.valid() || !m_Tile.valid() )
       {
          if(traceDebug())
          {
             ossimNotify(ossimNotifyLevel_WARN)
                << "ossimImageRenderer::getTile tile allocation failure!\n"
                << endl;
          }
          return ossimImageSourceFilter::getTile(tileRect, resLevel);
       }
    }
 
    m_BlankTile->setImageRectangle(tileRect);
    
    if(!theInputConnection)
    {
       return m_BlankTile;
    }
    
    if ( !isSourceEnabled()||(!m_ImageViewTransform.valid())||
         (!m_ImageViewTransform->isValid()) )
    {
       // This tile source bypassed, return the input tile source.
       return theInputConnection->getTile(tileRect, resLevel);  
    }
 
    if( m_rectsDirty )
    {
       initializeBoundingRects();
 
       // We can't go on without these...
       if ( m_rectsDirty )
       {
          return m_BlankTile;
       }
    }
    
    if(m_viewRect.width() < 4 && m_viewRect.height() < 4)
    {
       return m_BlankTile;
    }
 
    if( !theInputConnection || 
        !m_viewRect.intersects(tileRect) ||
        !m_viewArea.intersects(tileRect) )
    {
       if(traceDebug())
       {
          ossimNotify(ossimNotifyLevel_DEBUG)
             << MODULE << "No intersection, Returning...." << endl;
       }
       return m_BlankTile;
    }
    
    // drb - handled above...
    // if(!m_Tile)
    // {
    //    return theInputConnection->getTile(tileRect, resLevel);
    // }
 
    // Check for identity transform:
    if( m_ImageViewTransform->isIdentity() == true )
    {
       return theInputConnection->getTile(tileRect, resLevel);
    }
    
    // long tw = m_Tile->getWidth();
    // long th = m_Tile->getHeight();
    
    m_Tile->setImageRectangle(tileRect);
    m_Tile->makeBlank();
  
 
   //if(!(m_viewArea.intersects(ossimPolyArea2d(tileRect))))
   //{
   //  return m_BlankTile;
   //} 
 
 #if 0
    // expand a small patch just to alleviate errors in the size of the rect when resampling
      // ossimIrect viewRectClip = tileRect.clipToRect(ossimIrect(m_viewRect.ul() + ossimIpt(-8,-8),
      //                                                          m_viewRect.lr() + ossimIpt(8,8)));
    ossimIrect viewRectClip = tileRect.clipToRect(m_viewRect);
    std::cout << "_____________________" << std::endl;
    std::cout << "viewRectClip = " <<  viewRectClip << std::endl;
 //   std::cout << "tileRect = " <<  tileRect << std::endl;
 //   std::cout << "m_viewRect = " <<  m_viewRect << std::endl;
    ossimRendererSubRectInfo subRectInfo(viewRectClip.ul(),
                                         viewRectClip.ur(),
                                         viewRectClip.lr(),
                                         viewRectClip.ll());
 #else
    ossimRendererSubRectInfo subRectInfo(m_ImageViewTransform.get(),
                                         tileRect.ul(),
                                         tileRect.ur(),
                                         tileRect.lr(),
                                         tileRect.ll());
 
 
 #endif
    subRectInfo.m_viewBounds = &m_viewArea;
    subRectInfo.transformViewToImage();
 
    if((!m_viewArea.intersects(subRectInfo.getViewRect())))
 //   if((!m_viewRect.intersects(subRectInfo.getViewRect())))
    {
      return m_BlankTile;
    }
    if(traceDebug())
    {
       ossimNotify(ossimNotifyLevel_DEBUG)
          << MODULE << " image rect = " << subRectInfo.getImageRect() << std::endl;
    }
 
    // If the image rect is completely outside of the valid image, there is no need to resample:
    // (OLK 11/18)
 //   if ((!subRectInfo.imageHasNans())&&!m_inputR0Rect.intersects(subRectInfo.getImageRect()))
 //   {
 //      return m_Tile;
 //   }
    recursiveResample(m_Tile, subRectInfo, 1);
   
    if(m_Tile.valid())
    {
       m_Tile->validate();
    }
    if(traceDebug())
    {
       ossimNotify(ossimNotifyLevel_DEBUG)
          << MODULE << "Returning...." << endl;
    }
    return m_Tile;
 }

◆ getTileAtResLevel()

ossimRefPtr< ossimImageData > ossimImageRenderer::getTileAtResLevel	(	const ossimIrect &	boundingRect,
		ossim_uint32	resLevel
	)

private

Definition at line 2203 of file ossimImageRenderer.cpp.

References ossimImageData::dup(), ossimImageSource::getBoundingRect(), ossimImageData::getBuf(), ossimDataObject::getDataObjectStatus(), ossimImageSource::getNumberOfDecimationLevels(), ossimRectilinearDataObject::getScalarType(), ossimImageSource::getTile(), ossimImageSource::getTileHeight(), ossimImageSource::getTileWidth(), ossimImageData::initialize(), ossimIrect::intersects(), ossimIrect::lr(), m_BlankTile, m_MaxLevelsToCompute, m_TemporaryBuffer, ossimImageData::makeBlank(), OSSIM_EMPTY, OSSIM_FLOAT32, OSSIM_FLOAT64, OSSIM_NORMALIZED_DOUBLE, OSSIM_NORMALIZED_FLOAT, OSSIM_SCALAR_UNKNOWN, OSSIM_SINT16, OSSIM_UINT16, OSSIM_UINT8, OSSIM_USHORT11, OSSIM_USHORT12, OSSIM_USHORT13, OSSIM_USHORT14, OSSIM_USHORT15, resampleTileToDecimation(), ossimImageData::setImageRectangle(), ossimIrect::stretchToTileBoundary(), ossimImageSourceFilter::theInputConnection, ossimIrect::ul(), ossimRefPtr< T >::valid(), ossimImageData::validate(), ossimIpt::x, and ossimIpt::y.

Referenced by fillTile().

 {
    if(!theInputConnection)
    {
       m_BlankTile->setImageRectangle(boundingRect);
       
       return m_BlankTile;
    }
    
    ossim_uint32 levels = theInputConnection->getNumberOfDecimationLevels();
    
    // ossim_uint32 maxValue = (ossim_uint32)ossim::max((ossim_uint32)m_BoundingRect.width(),
    //                                            (ossim_uint32)m_BoundingRect.height());
    if(resLevel == 0)
    {
       return theInputConnection->getTile(boundingRect);
    }
    if(resLevel < levels)
    {
       if(theInputConnection)
       {
          return theInputConnection->getTile(boundingRect,
                                             resLevel);
       }
       else
       {
          return m_BlankTile;
       }
    }
    else if((resLevel - levels) < m_MaxLevelsToCompute)
    {
       // check to see how many decimations we must achiev for the
       // request
       //
       int decimations = (resLevel - (levels-1));
       ossimIpt tileSize(theInputConnection->getTileWidth(),
                         theInputConnection->getTileHeight());
       
       ossim_int32 multiplier = (1 << decimations);
       
       ossim_int32 xIndex = 0;
       ossim_int32 yIndex = 0;
       
       // adjust the tilesize so it at least will cover the multiplier
       // We will probably come up with something better later but for now
       // this will do.
       if(multiplier > tileSize.x)
       {
          tileSize.x = multiplier;
       }
       if(multiplier > tileSize.y)
       {
          tileSize.y = multiplier;
       }
       
       // set the rect that covers the requested RLevel to the valid RLevel. 
       // the valid RLevel is what is available on the input side.
       //
       ossimIrect requestedRectAtValidRLevel = boundingRect;
       requestedRectAtValidRLevel.stretchToTileBoundary(tileSize);
       ossimIrect mappedRequestedRect = requestedRectAtValidRLevel;
       requestedRectAtValidRLevel  = requestedRectAtValidRLevel*((double)multiplier);
       
       if(!m_TemporaryBuffer)
       {
          m_TemporaryBuffer = (ossimImageData*)m_BlankTile->dup();
          m_TemporaryBuffer->setImageRectangle(mappedRequestedRect);
          m_TemporaryBuffer->initialize();
       }
       else
       {
          m_TemporaryBuffer->setImageRectangle(mappedRequestedRect);
          m_TemporaryBuffer->makeBlank();
       }
       
      // ossim_uint32 totalCount   = ((requestedRectAtValidRLevel.lr().y-requestedRectAtValidRLevel.ul().y)*
    //                                (requestedRectAtValidRLevel.lr().x-requestedRectAtValidRLevel.ul().x));
       ossim_uint32 currentCount = 0;
       ossimIrect boundingRect = theInputConnection->getBoundingRect(levels-1);
       for(yIndex = requestedRectAtValidRLevel.ul().y;yIndex < requestedRectAtValidRLevel.lr().y; yIndex += tileSize.y)
       {
          for(xIndex = requestedRectAtValidRLevel.ul().x; xIndex < requestedRectAtValidRLevel.lr().x; xIndex+=tileSize.x)
          {
             ossimIrect request(xIndex,
                                yIndex,
                                xIndex + (tileSize.x-1),
                                yIndex + (tileSize.y-1));
             ossimRefPtr<ossimImageData> data = theInputConnection->getTile(request, levels-1);
             
             if(data.valid() && (data->getDataObjectStatus()!=OSSIM_EMPTY)&&
                data->getBuf()&&
                boundingRect.intersects(request))
             {
                switch(data->getScalarType())
                {
                   case OSSIM_UINT8:
                   {
                      resampleTileToDecimation((ossim_uint8)0,
                                               m_TemporaryBuffer,
                                               data,
                                               multiplier);
                      break;
                   }
                   case OSSIM_SINT16:
                   {
                      resampleTileToDecimation((ossim_sint16)0,
                                               m_TemporaryBuffer,
                                               data,
                                               multiplier);
                      break;
                   }
                   case OSSIM_UINT16:
                   case OSSIM_USHORT11:
                   case OSSIM_USHORT12:
                   case OSSIM_USHORT13:
                   case OSSIM_USHORT14:
                   case OSSIM_USHORT15:
                   {
                      resampleTileToDecimation((ossim_uint16)0,
                                               m_TemporaryBuffer,
                                               data,
                                               multiplier);
                      break;
                   }
                   case OSSIM_FLOAT32:
                   case OSSIM_NORMALIZED_FLOAT:
                   {
                      resampleTileToDecimation((ossim_float32)0,
                                               m_TemporaryBuffer,
                                               data,
                                               multiplier);
                      break;
                   }
                   case OSSIM_FLOAT64:
                   case OSSIM_NORMALIZED_DOUBLE:
                   {
                      resampleTileToDecimation((ossim_float64)0,
                                               m_TemporaryBuffer,
                                               data,
                                               multiplier);
                      break;
                   }
                   case OSSIM_SCALAR_UNKNOWN:
                   default:
                   {
                      break;
                   }
                }
             }
             ++currentCount;
          }
       }
       m_TemporaryBuffer->validate();
       return m_TemporaryBuffer;
    }
 
    return 0;
 }

◆ getValidImageVertices()

void ossimImageRenderer::getValidImageVertices	(	vector< ossimIpt > &	validVertices,
		ossimVertexOrdering	ordering = `OSSIM_CLOCKWISE_ORDER`,
		ossim_uint32	resLevel = `0`
	)		const

virtual

ordering specifies how the vertices should be arranged.

valid image vertices is basically the tightly fit convex hull of the image. Usually an image has NULL values and are internally not upright rectangular. This can cause problems some spatial filters.

We need to make sure that the resampler overrides this method. it needs to transform the vertices to the view's side.

Definition at line 1884 of file ossimImageRenderer.cpp.

References ossimImageSource::getValidImageVertices(), ossimImageViewTransform::imageToView(), ossimSource::isSourceEnabled(), ossimImageViewTransform::isValid(), m_ImageViewTransform, ossimImageSourceFilter::theInputConnection, and ossimRefPtr< T >::valid().

 {
    if(theInputConnection&&m_ImageViewTransform.valid()&&m_ImageViewTransform->isValid())
    {
       theInputConnection->getValidImageVertices(validVertices, ordering, resLevel);
       if(isSourceEnabled())
       {
          ossim_uint32 inputSize = (ossim_uint32)validVertices.size();
          if(inputSize)
          {
             ossimDpt viewPt;
             ossim_uint32 idx = 0;
             // transform each point to the view
             for(idx = 0; idx < inputSize; ++idx)
             {
                m_ImageViewTransform->imageToView(validVertices[idx], viewPt);
                
                // round it to the nearest pixel
                //
                validVertices[idx] = ossimIpt(viewPt);
             }
          }
       }
    }
 }

◆ getView() [1/2]

ossimObject * ossimImageRenderer::getView ( )

virtual

Implements ossimViewInterface.

Definition at line 1866 of file ossimImageRenderer.cpp.

References ossimViewInterface::getView(), m_ImageViewTransform, and ossimRefPtr< T >::valid().

 {
    if(m_ImageViewTransform.valid())
    {
       return m_ImageViewTransform->getView();
    }
    return 0;
 }

◆ getView() [2/2]

const ossimObject * ossimImageRenderer::getView ( ) const

virtual

Implements ossimViewInterface.

Definition at line 1875 of file ossimImageRenderer.cpp.

References ossimViewInterface::getView(), m_ImageViewTransform, and ossimRefPtr< T >::valid().

 {
    if(m_ImageViewTransform.valid())
    {
       return m_ImageViewTransform->getView();
    }
    return 0;
 }

◆ initialize()

void ossimImageRenderer::initialize ( )

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 1735 of file ossimImageRenderer.cpp.

References checkIVT(), deallocate(), ossimImageSourceFilter::initialize(), initializeBoundingRects(), ossimSource::isSourceEnabled(), ossimImageViewTransform::isValid(), m_ImageViewTransform, m_rectsDirty, and ossimRefPtr< T >::valid().

Referenced by connectInputEvent(), ossimEquationUtil::initInputSources(), propertyEvent(), refreshEvent(), and setEnableFlag().

 {
    // Call the base class initialize.
    // Note:  This will reset "theInputConnection" if it changed...
    ossimImageSourceFilter::initialize();
 
    deallocate();
 
    m_rectsDirty = true;
 
    // we will only do this if we are enabled for this could be expensive
    if (m_ImageViewTransform.valid() && !m_ImageViewTransform->isValid() && isSourceEnabled())
    {
       checkIVT(); // This can initialize bounding rects and clear dirty flag.
    }
 
    if ( m_rectsDirty )
    {
       initializeBoundingRects();
    }
 }

◆ initializeBoundingRects()

void ossimImageRenderer::initializeBoundingRects ( )

private

Initializes m_inputR0Rect and m_viewBoundingRect and sets m_rectsDirty appropriately.

Definition at line 1600 of file ossimImageRenderer.cpp.

References ossimPolyArea2d::add(), ossimIrect::combine(), ossimRefPtr< T >::get(), ossimImageSource::getBoundingRect(), ossimImageGeometry::getBoundingRect(), ossimImageGeometry::getCrossesDateline(), ossimImageViewProjectionTransform::getImageGeometry(), ossimImageViewTransform::getImageToViewBounds(), ossimImageGeometry::getMetersPerPixel(), ossimImageViewProjectionTransform::getViewGeometry(), ossimImageViewProjectionTransform::getViewSegments(), ossimDpt::hasNans(), ossimIrect::hasNans(), ossimDrect::height(), m_ImageViewTransform, m_inputR0Rect, m_rectsDirty, m_viewArea, m_viewRect, ossimIrect::makeNan(), ossim::max(), ossim::min(), ossimNotify(), ossimNotifyLevel_DEBUG, ossimImageSourceFilter::theInputConnection, ossimRefPtr< T >::valid(), ossimDrect::width(), and ossimDpt::y.

Referenced by initialize(), setImageViewTransform(), and setView().

 {
    m_rectsDirty      = true;
    ossimImageViewProjectionTransform* ivpt = 
                    dynamic_cast<ossimImageViewProjectionTransform*>(m_ImageViewTransform.get()); 
    if(!theInputConnection||!m_ImageViewTransform.valid()) return;
    m_inputR0Rect = theInputConnection->getBoundingRect(0);
    if (!m_inputR0Rect.hasNans() )
    {
      if(ivpt&&ivpt->getImageGeometry()&&ivpt->getViewGeometry())
      {
          // Little complicated but instead of always setting the edge walk
          // to a high number like 50 points per edge
          // we will look at the image to view scale change
          // and use that as a factor.  So as the image zooms out we
          // need fewer points to estimate the edge.
          //
          // ossim_uint32 idx;
          std::vector<ossimDrect> boundList;
          ossimImageGeometry* igeom = ivpt->getImageGeometry(); // look at projected meters
          ossimImageGeometry* vgeom = ivpt->getViewGeometry(); // look at projected meters
          ossimDrect testRect;
          igeom->getBoundingRect(testRect);
          ossimDpt mpp = igeom->getMetersPerPixel();
          ossimDpt vmpp = vgeom->getMetersPerPixel();
          ossim_float64 scale = 1.0;
          ossim_uint32 maxLen = ossim::max(testRect.width(), testRect.height());
 
          // (GP March 2, 2017) determine goodMatch : test if we have either enough samples to closely match the post spacing 
          //  or if we have at least half the number of pixels along the edge of an image
          //
          // This is hopefully to help avoid when using the polygon for intersection to not have
          // bad intersection tests when zooming.  We might have to rethink it and implement
          // this as a windowed edge walker.  So when zooming we create a polygon that 
          // is denser for only what the view can see and not the entire image.  Basically interatively
          // tesselate the input image model based on bounding volumes and then create a dense edge walker
          // for what lies in the view at the given scale.  Too much to implement right now so we will cheet
          // and take an easy way out for now.
          // 
 
          if(!mpp.hasNans()&&!vmpp.hasNans())
          {
             scale = mpp.y/vmpp.y;
             if(scale > 1.0) scale = 1.0; 
          }  
          ossim_float64 mppTest = mpp.y;
          ossim_float64 divisor = mppTest; // default to 30 meter elevation
          if(mppTest < 500 )
          {
             if(mppTest >= 45 )
             {
                divisor = 90; // 90 meters
             }
          }
          else
          {
             divisor = 1000; // 1 kilometer
          }
          if(divisor < 30) divisor = 30.0;
 
 
          // now test to see if our edge walk is close to matching enough
          // points for a good match.
          //
          ossim_uint32 maxEdgeSample = ossim::min(static_cast<ossim_uint32>(50), maxLen); 
          if(maxEdgeSample < 1) maxEdgeSample = 1;
          ossim_uint32 testEdgeSample = ossim::round<ossim_uint32>((maxLen*scale*mpp.y)/divisor);
 
          bool goodMatch = (testEdgeSample<=maxEdgeSample)||(testEdgeSample>=(maxLen>>1));
          ossim_float64 steps = ossim::min(testEdgeSample, maxEdgeSample); 
 
          ossim_uint32 finalSteps = ossim::round<ossim_uint32>(steps);
          if(finalSteps<1) finalSteps=1;
          if(igeom->getCrossesDateline())
          {
             if(finalSteps < maxEdgeSample) finalSteps = maxEdgeSample;
          }
 
          ivpt->getViewSegments(boundList, m_viewArea, finalSteps);
          if(boundList.size())
          {
             m_viewRect   = boundList[0];
             ossim_uint32 idx = 0;
 
             if(goodMatch)
             {
                m_viewArea = boundList[idx];
             }
             else
             {
                m_viewArea = m_viewRect;
             }
             for(idx=1;idx<boundList.size();++idx)
             {
                ossimIrect rectBounds = ossimIrect(boundList[idx]);
                m_viewRect = m_viewRect.combine(rectBounds);
                if(goodMatch)
                {
                   m_viewArea.add(ossimPolygon(boundList[idx]));
                }
                else
                {
                   m_viewArea.add(rectBounds);
                }
             } //
             if(!m_viewRect.hasNans())
             {
                m_rectsDirty = false;
             } 
         } //END if boundList.size()
      }
      else if(m_ImageViewTransform.valid())
      {
        m_viewRect = m_ImageViewTransform->getImageToViewBounds(m_inputR0Rect);
 
        if(!m_viewRect.hasNans())
        {
           m_rectsDirty = false;
        } 
 
        m_viewArea = m_viewRect;
      }
    }
    if ( m_rectsDirty )
    {
       m_viewRect.makeNan();
    }
 #if 0 /* Please leave for debug. */
    ossimNotify(ossimNotifyLevel_DEBUG)
       << "ossimImageRenderer::initializeBoundingRects() debug:\n"
       << "\ninput rect: " << m_inputR0Rect
       << "\nview rect:  " << m_viewRect << endl;
 #endif
 }

◆ loadState()

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

virtual

Method to the load (recreate) the state of an object from a keyword list.

Return true if ok or false on error.

Reimplemented from ossimImageSourceFilter.

Definition at line 1798 of file ossimImageRenderer.cpp.

 {
    if (traceDebug())
    {
       ossimNotify(ossimNotifyLevel_DEBUG)
          << "ossimImageRenderer::loadState entered..." << endl;
       
 #ifdef OSSIM_ID_ENABLED
       ossimNotify(ossimNotifyLevel_DEBUG)
          << "OSSIM_ID:  " << OSSIM_ID << endl;
 #endif      
    }
    
    ossimString newPrefix = ossimString(prefix) + ossimString("image_view_trans.");
    bool result = ossimImageSourceFilter::loadState(kwl, prefix);
    
    if(m_Resampler)
    {
       m_Resampler->loadState(kwl,
                               (ossimString(prefix)+"resampler.").c_str());
    }
    m_ImageViewTransform = 0;
    m_ImageViewTransform = ossimImageViewTransformFactory::instance()->createTransform(kwl, newPrefix.c_str());
    if(!m_ImageViewTransform)
    {
       m_ImageViewTransform = new ossimImageViewProjectionTransform;
    }
    const char* maxLevelsToCompute = kwl.find(prefix,
                                              "max_levels_to_compute");
    if(maxLevelsToCompute)
    {
       m_MaxLevelsToCompute = ossimString(maxLevelsToCompute).toUInt32();
    }
    
    return result;
 }

◆ propertyEvent()

void ossimImageRenderer::propertyEvent ( ossimPropertyEvent & event )

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 1960 of file ossimImageRenderer.cpp.

References checkIVT(), and initialize().

 {
    checkIVT();
    initialize();
 }

◆ recursiveResample()

void ossimImageRenderer::recursiveResample	(	ossimRefPtr< ossimImageData >	outputData,
		const ossimRendererSubRectInfo &	rectInfo,
		ossim_uint32	level
	)

private

Definition at line 1250 of file ossimImageRenderer.cpp.

References fillTile(), ossimImageRenderer::ossimRendererSubRectInfo::getViewRect(), ossimIrect::height(), ossimImageRenderer::ossimRendererSubRectInfo::imageHasNans(), ossimImageRenderer::ossimRendererSubRectInfo::imageIsNan(), ossimPolyArea2d::intersects(), m_viewArea, ossimImageRenderer::ossimRendererSubRectInfo::splitView(), and ossimIrect::width().

 {
   // Removed recursion and just use the std::stack.
   //
   std::stack<ossimRendererSubRectInfo> rectStack;
   rectStack.push(rectInfo);
 
   while(!rectStack.empty())
   {
     ossimRendererSubRectInfo currentRectInfo = rectStack.top();
     ossimIrect tempViewRect = currentRectInfo.getViewRect();
     rectStack.pop();
     if(m_viewArea.intersects(tempViewRect))
     {
       if(tempViewRect.width() <2 ||
           tempViewRect.height() <2)
       {
           if(!currentRectInfo.imageHasNans())
           {
              fillTile(outputData,
                       currentRectInfo);
           }
       }
       else
       {
         ossim_uint32 idx = 0;
         std::vector<ossimRendererSubRectInfo> splitRects;
         currentRectInfo.splitView(splitRects);
         if(!splitRects.empty())
         {
           for(idx = 0; idx < splitRects.size();++idx)
           {
             if(m_viewArea.intersects(splitRects[idx].getViewRect()))
             {
               rectStack.push(splitRects[idx]);
             }
             // recursiveResample(outputData,
             //                   splitRects[idx],
             //                   level + 1);
           }
         }
         else
         {
           if(!currentRectInfo.imageHasNans())
           {
             fillTile(outputData,
                     currentRectInfo);
           }
         }
       }
 
     }
   }
   #if 0
    ossimIrect tempViewRect = rectInfo.getViewRect();
    if(rectInfo.imageIsNan())
    {
       return;
    } 
 
   if(tempViewRect.width() <2 ||
       tempViewRect.height() <2)
   {
       if(!rectInfo.imageHasNans())
       {
          fillTile(outputData,
                   rectInfo);
       }
       return;
   }
   //
   std::vector<ossimRendererSubRectInfo> splitRects;
   rectInfo.splitView(splitRects);
 
 //std::cout << "SHOULD BE SPLITTING: " << splitRects.size() <<"\n";
   ossim_uint32 idx = 0;
   if(!splitRects.empty())
   {
    // std::cout << "SPLITTING " << level << ", " << tempViewRect << "\n";
     for(idx = 0; idx < splitRects.size();++idx)
     {
       recursiveResample(outputData,
                         splitRects[idx],
                         level + 1);
     }
   }
   else if(!rectInfo.imageHasNans())
   {
     fillTile(outputData,
             rectInfo);
   }
   #endif
 }

◆ refreshEvent()

void ossimImageRenderer::refreshEvent ( ossimRefreshEvent & event )

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 2525 of file ossimImageRenderer.cpp.

References ossimRefPtr< T >::get(), ossimImageSource::getImageGeometry(), ossimEvent::getObject(), ossimRefreshEvent::getRefreshType(), ossimImageSourceFilter::initialize(), initialize(), m_ImageViewTransform, ossimRefreshEvent::REFRESH_GEOMETRY, ossimImageSourceFilter::refreshEvent(), ossimImageViewProjectionTransform::setImageGeometry(), and ossimImageSourceFilter::theInputConnection.

 {
    ossimImageSourceFilter::refreshEvent(event);
    ossimImageSourceFilter::initialize(); // init connections
    if((event.getObject()!=this)&&
       (event.getRefreshType() & ossimRefreshEvent::REFRESH_GEOMETRY))
    {
       ossimRefPtr<ossimImageGeometry> inputGeom =
          theInputConnection?theInputConnection->getImageGeometry().get():0;
       if(inputGeom)
       {
          ossimImageViewProjectionTransform* ivpt = 
                          dynamic_cast<ossimImageViewProjectionTransform*>(m_ImageViewTransform.get()); 
          if(ivpt)
          {
             ivpt->setImageGeometry(inputGeom.get());
          }
       }
    }
    initialize();
 }

◆ resampleTileToDecimation()

template<class T >

void ossimImageRenderer::resampleTileToDecimation	(	T	dummyVariable,
		ossimRefPtr< ossimImageData >	result,
		ossimRefPtr< ossimImageData >	tile,
		ossim_uint32	multiplier
	)

private

Definition at line 2374 of file ossimImageRenderer.cpp.

References ossimImageData::getBuf(), ossimDataObject::getDataObjectStatus(), ossimImageData::getHeight(), ossimImageData::getNullPix(), ossimImageData::getNumberOfBands(), ossimImageData::getOrigin(), ossimImageData::getWidth(), min, OSSIM_EMPTY, OSSIM_FULL, ossimIpt::x, and ossimIpt::y.

Referenced by getTileAtResLevel().

 {
    if(tile->getDataObjectStatus() == OSSIM_EMPTY ||
       !tile->getBuf())
    {
       return;
    }
    
    ossim_int32 maxX     = (ossim_int32)tile->getWidth();
    ossim_int32 maxY     = (ossim_int32)tile->getHeight();
    ossim_int32 resultHeight = result->getHeight();
    ossim_int32* offsetX = new ossim_int32[maxX];
    ossim_int32* offsetY = new ossim_int32[maxY];
    ossim_int32 i        = 0;
    ossim_int32 resultWidth     = (ossim_int32)result->getWidth();
    ossimIpt tileOrigin   = tile->getOrigin();
    ossimIpt resultOrigin = result->getOrigin();
    
    // create a lookup table. that maps the tile to the result
    for(i = 0; i < maxX; ++i)
    {
       offsetX[i] = (i+tileOrigin.x)/(ossim_int32)multiplier - resultOrigin.x;
       if(offsetX[i] < 0 )
       {
          offsetX[i] = 0;
       }
       else if(offsetX[i] >= resultWidth)
       {
          offsetX[i] = resultWidth-1;
       }
    }
    for(i = 0; i < maxY; ++i)
    {
       offsetY[i] = ( ((i+tileOrigin.y)/(ossim_int32)multiplier) - resultOrigin.y);
       if(offsetY[i] < 0 )
       {
          offsetY[i] = 0;
       }
       else if(offsetY[i] >= resultHeight)
       {
          offsetY[i] = resultHeight-1;
       }
       offsetY[i] *= resultWidth;
    }
    
    if(tile->getDataObjectStatus() == OSSIM_FULL)
    {
       ossim_int32 numberOfBands = (ossim_int32)std::min(result->getNumberOfBands(),
                                                         tile->getNumberOfBands());
       ossim_int32 band = 0;
       for(band = 0; band < numberOfBands; ++band)
       {
          T* tileBuf   = static_cast<T*>(tile->getBuf(band));
          T* resultBuf = static_cast<T*>(result->getBuf(band));
          ossim_int32 dx = 0;
          ossim_int32 dy = 0;
          ossim_int32 boxAverageX = 0;
          ossim_int32 boxAverageY = 0;
          for(dy = 0; dy < maxY; dy+=multiplier)
          {
             for(dx = 0; dx < maxX; dx+=multiplier)
             {
                double sum = 0.0;
                for(boxAverageY = 0; 
                    ((boxAverageY < (ossim_int32)multiplier)&& 
                     ((boxAverageY+dy)<maxY)); ++boxAverageY)
                {
                   for(boxAverageX = 0; 
                       ((boxAverageX < (ossim_int32)multiplier)&& 
                        ((boxAverageX+dx)<maxX)); ++boxAverageX)
                   {
                      sum += tileBuf[((boxAverageY+dy)*maxX + boxAverageX + dx)];
                   }
                }
                sum /= (double)(multiplier*multiplier);
                resultBuf[ offsetX[dx] + offsetY[dy] ] = (T)sum;
             }
          }
       }
    }
    else
    {
       ossim_int32 numberOfBands = (ossim_int32)std::min(result->getNumberOfBands(),
                                                         tile->getNumberOfBands());
       ossim_int32 band = 0;
       for(band = 0; band < numberOfBands; ++band)
       {
          T* tileBuf   = static_cast<T*>(tile->getBuf(band));
          T* resultBuf = static_cast<T*>(result->getBuf(band));
          T tileBufNp  = static_cast<T>(tile->getNullPix(band));
          ossim_int32 dx = 0;
          ossim_int32 dy = 0;
          ossim_int32 boxAverageX = 0;
          ossim_int32 boxAverageY = 0;
          for(dy = 0; dy < maxY; dy+=multiplier)
          {
             for(dx = 0; dx < maxX; dx+=multiplier)
             {
                double sum = 0.0;
                if(tileBuf[((dy+(multiplier>>1))*maxX + dx+(multiplier>>1))] != tileBufNp)
                {
                   ossim_uint32 nullCount = 0;
                   for(boxAverageY = 0; 
                       ((boxAverageY < (ossim_int32)multiplier)&& 
                        ((boxAverageY+dy)<maxY)); ++boxAverageY)
                   {
                      for(boxAverageX = 0; 
                          ((boxAverageX < (ossim_int32)multiplier)&& 
                           ((boxAverageX+dx)<maxX)); ++boxAverageX)
                      {
                         T value = tileBuf[((boxAverageY+dy)*maxX + boxAverageX + dx)];
                         if(value != tileBufNp)
                         {
                            sum += value;
                         }
                         else
                         {
                            ++nullCount;
                         }
                      }
                   }
                   ossim_uint32 area = multiplier*multiplier;
                   sum /= (double)(area);
                   if(nullCount!= area)
                   {
                      resultBuf[ offsetX[dx] + offsetY[dy] ] = (T)sum;
                   }
                }
             }
          }
       }
       
    }
    
   delete [] offsetX;
   delete [] offsetY;
 }

◆ saveState()

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

virtual

Method to save the state of an object to a keyword list.

Return true if ok or false on error.

Reimplemented from ossimImageSourceFilter.

Definition at line 1777 of file ossimImageRenderer.cpp.

References ossimKeywordlist::add(), ossimString::c_str(), m_ImageViewTransform, m_MaxLevelsToCompute, m_Resampler, ossimFilterResampler::saveState(), ossimImageViewTransform::saveState(), ossimImageSource::saveState(), and ossimRefPtr< T >::valid().

 {
    if(m_ImageViewTransform.valid())
    {
       ossimString newPrefix = ossimString(prefix) + ossimString("image_view_trans.");
       
       m_ImageViewTransform->saveState(kwl, newPrefix.c_str());
    }
    if(m_Resampler)
    {
       m_Resampler->saveState(kwl,
                               (ossimString(prefix)+"resampler.").c_str());
    }
    kwl.add(prefix,
            "max_levels_to_compute",
            m_MaxLevelsToCompute);
    
    return ossimImageSource::saveState(kwl, prefix);
 }

◆ setAutoUpdateInputTransformFlag()

virtual void ossimImageRenderer::setAutoUpdateInputTransformFlag ( bool flag )

inlinevirtual

Definition at line 99 of file ossimImageRenderer.h.

99 { m_AutoUpdateInputTransform = flag; }

ossimImageRenderer::m_AutoUpdateInputTransform

bool m_AutoUpdateInputTransform

Definition: ossimImageRenderer.h:336

◆ setEnableFlag()

void ossimImageRenderer::setEnableFlag ( bool flag )

virtual

Sets the enable flag.

Parameters

flag	True to enable, false to disable.

Overrides ossimSource::setEnableFlag so bounding rects are recomputed on state change.

Reimplemented from ossimSource.

Definition at line 2563 of file ossimImageRenderer.cpp.

References checkIVT(), ossimSource::getEnableFlag(), initialize(), and ossimSource::setEnableFlag().

Referenced by disableSource(), and enableSource().

 {
    if ( getEnableFlag() != flag )
    {
       ossimImageSourceFilter::setEnableFlag( flag );
       checkIVT();
       initialize();
    }
 }

◆ setImageViewTransform()

void ossimImageRenderer::setImageViewTransform ( ossimImageViewTransform * transform )

Definition at line 1836 of file ossimImageRenderer.cpp.

References checkIVT(), initializeBoundingRects(), ossimSource::isSourceEnabled(), ossimImageViewTransform::isValid(), m_ImageViewTransform, m_rectsDirty, and ossimRefPtr< T >::valid().

Referenced by ATP::AtpGenerator::constructChain(), ossimKakaduJpipHandler::getTile(), and ossimEquationUtil::initInputSources().

 {
    m_ImageViewTransform = ivt;
    
    m_rectsDirty = true; // Want to recompute bounding rects.
    
    if ( m_ImageViewTransform.valid() && !m_ImageViewTransform->isValid() && isSourceEnabled() )
    {
       checkIVT(); // This can initialize bounding rects and clear dirty flag.
    }
    
    if ( m_rectsDirty ) 
    {
       initializeBoundingRects();
    }
 }

◆ setMaxLevelsToCompute()

void ossimImageRenderer::setMaxLevelsToCompute ( ossim_uint32 maxLevels )

Definition at line 2363 of file ossimImageRenderer.cpp.

References m_MaxLevelsToCompute.

 {
    m_MaxLevelsToCompute = maxLevels;
 }

◆ setProperty()

void ossimImageRenderer::setProperty ( ossimRefPtr< ossimProperty > property )

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 1966 of file ossimImageRenderer.cpp.

References m_Resampler, ossimFilterResampler::setFilterType(), ossimImageSourceFilter::setProperty(), and ossimProperty::valueToString().

Referenced by ATP::AtpGenerator::constructChain().

 {
    ossimString tempName = property->getName();
    
    if((tempName == "Filter type")||
       (tempName == "filter_type"))
    {
       if(m_Resampler)
       {
          m_Resampler->setFilterType(property->valueToString());
       }
    }
    //   else if(tempName == "Blur factor")
    //     {
    //       if(m_Resampler)
    //    {
    //      m_Resampler->setBlurFactor(property->valueToString().toDouble());
    //    }
    //     }
    else
    {
       ossimImageSourceFilter::setProperty(property);
    }
 }

◆ setView()

bool ossimImageRenderer::setView ( ossimObject * baseObject )

virtual

The derived classes should overrid this method and return true or false whether it was able to cast the past in view to a view that it can interface to. So if you are a projective view you might cast to an ossimProjection. The ownsTheView specifies whether or not it owns the passed in view pointer. This will specifiy whether or not the derived classes need to re-allocate the pointer or just delete its old pointer and set it to the passed in pointer.

Implements ossimViewInterface.

Definition at line 1853 of file ossimImageRenderer.cpp.

References initializeBoundingRects(), m_ImageViewTransform, ossimViewInterface::setView(), and ossimRefPtr< T >::valid().

Referenced by main(), and ossimChipProcTool::propagateGeometryToChains().

 {
    bool new_view_set = false;
    if(m_ImageViewTransform.valid())
    {
       new_view_set = m_ImageViewTransform->setView(baseObject);
 
       // If view changes reset the bounding rects.
       initializeBoundingRects();
    }
    return new_view_set;
 }

◆ stretchQuadOut()

void ossimImageRenderer::stretchQuadOut	(	const ossimDpt &	amount,
		ossimDpt &	ul,
		ossimDpt &	ur,
		ossimDpt &	lr,
		ossimDpt &	ll
	)

private

Definition at line 2172 of file ossimImageRenderer.cpp.

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

 {
    ossimDpt upper  = ur - ul;
    ossimDpt right  = lr - ur;
    ossimDpt bottom = ll - lr;
    ossimDpt left   = ul - ll;
    
    upper = (upper*(1.0 / upper.length()));
    upper.x *= amount.x;
    upper.y *= amount.y;
    right = (right*(1.0 / right.length()));
    right.x *= amount.x;
    right.y *= amount.y;
    bottom = (bottom*(1.0 / bottom.length()));
    bottom.x *= amount.x;
    bottom.y *= amount.y;
    left = (left*(1.0 / left.length()));
    left.x *= amount.x;
    left.y *= amount.y;
    
    
    ul = ul - upper + left;
    ur = ur + upper - right;
    lr = lr + left - bottom;
    ll = ll - left + bottom;
 }

Member Data Documentation

◆ m_AutoUpdateInputTransform

bool ossimImageRenderer::m_AutoUpdateInputTransform

private

Definition at line 336 of file ossimImageRenderer.h.

◆ m_BlankTile

ossimRefPtr<ossimImageData> ossimImageRenderer::m_BlankTile

private

Definition at line 315 of file ossimImageRenderer.h.

Referenced by allocate(), deallocate(), and getTileAtResLevel().

◆ m_crossesDateline

bool ossimImageRenderer::m_crossesDateline

private

Definition at line 340 of file ossimImageRenderer.h.

◆ m_ImageViewTransform

ossimRefPtr<ossimImageViewTransform> ossimImageRenderer::m_ImageViewTransform

private

Definition at line 329 of file ossimImageRenderer.h.

Referenced by checkIVT(), connectInputEvent(), disconnectInputEvent(), getImageGeometry(), getValidImageVertices(), getView(), initialize(), initializeBoundingRects(), ossimImageRenderer(), refreshEvent(), saveState(), setImageViewTransform(), setView(), and ~ossimImageRenderer().

◆ m_inputR0Rect

ossimIrect ossimImageRenderer::m_inputR0Rect

private

Definition at line 331 of file ossimImageRenderer.h.

Referenced by fillTile(), and initializeBoundingRects().

◆ m_MaxLevelsToCompute

ossim_uint32 ossimImageRenderer::m_MaxLevelsToCompute

private

Definition at line 337 of file ossimImageRenderer.h.

Referenced by getMaxLevelsToCompute(), getTileAtResLevel(), saveState(), and setMaxLevelsToCompute().

◆ m_MaxRecursionLevel

ossim_uint32 ossimImageRenderer::m_MaxRecursionLevel

private

Definition at line 335 of file ossimImageRenderer.h.

◆ m_rectsDirty

bool ossimImageRenderer::m_rectsDirty

private

Definition at line 333 of file ossimImageRenderer.h.

Referenced by initialize(), initializeBoundingRects(), and setImageViewTransform().

◆ m_Resampler

ossimFilterResampler* ossimImageRenderer::m_Resampler

private

Definition at line 314 of file ossimImageRenderer.h.

Referenced by fillTile(), getProperty(), ossimImageRenderer(), saveState(), setProperty(), and ~ossimImageRenderer().

◆ m_StartingResLevel

ossim_uint32 ossimImageRenderer::m_StartingResLevel

private

This is going to allow us to chain multiple renderers together.

So if we have one renderer doing a scale and they pass an r-level down and we have another renderer within the chain he will be starting at a different r-level. The default will be r-level 0 request coming from the right.

Definition at line 328 of file ossimImageRenderer.h.

Referenced by fillTile().

◆ m_TemporaryBuffer

ossimRefPtr<ossimImageData> ossimImageRenderer::m_TemporaryBuffer

private

Definition at line 317 of file ossimImageRenderer.h.

Referenced by deallocate(), and getTileAtResLevel().

◆ m_Tile

ossimRefPtr<ossimImageData> ossimImageRenderer::m_Tile

private

Definition at line 316 of file ossimImageRenderer.h.

Referenced by allocate(), and deallocate().

◆ m_viewArea

ossimPolyArea2d ossimImageRenderer::m_viewArea

private

Definition at line 339 of file ossimImageRenderer.h.

Referenced by initializeBoundingRects(), and recursiveResample().

◆ m_viewRect

ossimIrect ossimImageRenderer::m_viewRect

private

Definition at line 332 of file ossimImageRenderer.h.

Referenced by getBoundingRect(), and initializeBoundingRects().

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

Classes

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ossimImageRenderer() [1/2]

◆ ossimImageRenderer() [2/2]

◆ ~ossimImageRenderer()

Member Function Documentation

◆ allocate()

◆ checkIVT()

◆ computeClosestResLevel()

◆ connectInputEvent()

◆ deallocate()

◆ disableSource()

◆ disconnectInputEvent()

◆ enableSource()

◆ fillTile()

◆ getBoundingImageRect()

◆ getBoundingRect() [1/2]

◆ getBoundingRect() [2/2]

◆ getDecimationFactor()

◆ getDecimationFactors()

◆ getImageGeometry()

◆ getImageViewTransform()

◆ getLongName()

◆ getMaxLevelsToCompute()

◆ getNumberOfDecimationLevels()

◆ getProperty()

◆ getPropertyNames()

◆ getResampler()

◆ getShortName()

◆ getTile()

◆ getTileAtResLevel()

◆ getValidImageVertices()

◆ getView() [1/2]

◆ getView() [2/2]

◆ initialize()

◆ initializeBoundingRects()

◆ loadState()

◆ propertyEvent()

◆ recursiveResample()

◆ refreshEvent()

◆ resampleTileToDecimation()

◆ saveState()

◆ setAutoUpdateInputTransformFlag()

◆ setEnableFlag()

◆ setImageViewTransform()

◆ setMaxLevelsToCompute()

◆ setProperty()

◆ setView()

◆ stretchQuadOut()

Member Data Documentation

◆ m_AutoUpdateInputTransform

◆ m_BlankTile

◆ m_crossesDateline

◆ m_ImageViewTransform

◆ m_inputR0Rect

◆ m_MaxLevelsToCompute

◆ m_MaxRecursionLevel

◆ m_rectsDirty

◆ m_Resampler

◆ m_StartingResLevel

◆ m_TemporaryBuffer

◆ m_Tile

◆ m_viewArea

◆ m_viewRect