#include <ossimUsgsDemTileSource.h>

Inheritance diagram for ossimUsgsDemTileSource:

Public Member Functions
	ossimUsgsDemTileSource ()

virtual ossimString	getShortName () const

virtual ossimString	getLongName () const

virtual bool	open ()
	Returns true if the "theImageFile can be opened. More...

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

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

virtual ossim_uint32	getNumberOfInputBands () const
	Returns the number of bands in the image. More...

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

virtual ossim_uint32	getNumberOfLines (ossim_uint32 reduced_res_level=0) const
	Returns the number of lines in the image. More...

virtual ossim_uint32	getNumberOfSamples (ossim_uint32 reduced_res_level=0) const
	Returns the number of samples in the image. 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
	Retuns the min pixel value. More...

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

virtual ossimIrect	getImageRectangle (ossim_uint32 reduced_res_level=0) const
	Returns the zero based image rectangle for the reduced resolution data set (rrds) passed in. 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...

virtual ossimScalarType	getOutputScalarType () const
	Returns the output pixel type of the tile source. More...

virtual ossim_uint32	getTileWidth () const
	Returns the width of the output tile. More...

virtual ossim_uint32	getTileHeight () const
	Returns the height of the output tile. More...

virtual ossim_uint32	getImageTileWidth () const
	Returns the tile width of the image or 0 if the image is not tiled. More...

virtual ossim_uint32	getImageTileHeight () const
	Returns the tile width of the image or 0 if the image is not tiled. More...

virtual bool	isOpen () const
	Derived classes must implement this method to be concrete. More...

virtual ossimRefPtr< ossimImageGeometry >	getImageGeometry ()
	Override base-class method to make sure the internal geometry is explored before extending. More...

Public Member Functions inherited from ossimImageHandler
	ossimImageHandler ()
	Constructor (default): More...

virtual	~ossimImageHandler ()
	Destructor: Derived classes should implement. More...

virtual void	initialize ()
	initialize Does nothing in this class. More...

virtual bool	openOverview ()
	Searches for an overview. More...

virtual bool	openOverview (const ossimFilename &overview_file)
	Calls closeOverview(), then attempts to open the overview_file. More...

virtual void	closeOverview ()
	If theOverview is initialized it will be deleted and set to NULL. More...

virtual const ossimImageHandler *	getOverview () const

virtual bool	hasOverviews () const

virtual ossimFilename	createDefaultOverviewFilename () const

virtual ossimFilename	createDefaultGeometryFilename () const

virtual ossimFilename	createDefaultMetadataFilename () const

virtual ossimFilename	createDefaultHistogramFilename () const

virtual ossimFilename	createDefaultValidVerticesFilename () const

virtual bool	writeValidImageVertices (const std::vector< ossimIpt > &vertices, const ossimFilename &file=ossimFilename(""))
	Outputs vertices to file and updates the internal vertex array variable "theValidImageVertices". More...

virtual bool	openValidVertices (const ossimFilename &vertices_file)
	Opens the valid image vertices file and sets theValidImageVerticesFile variable. More...

virtual bool	openValidVertices ()
	Creates vertices file name based on image, then tries to open. More...

virtual bool	open (const ossimFilename &imageFile, ossim_uint32 entryIndex)
	Opens the image file. More...

virtual bool	open (const ossimFilename &imageFile)

virtual bool	open (std::shared_ptr< ossim::ImageHandlerState > state)

virtual void	close ()
	Deletes the overview and clears the valid image vertices. More...

virtual bool	buildHistogram (int numberOfRLevels=0, ossimHistogramMode mode=OSSIM_HISTO_MODE_NORMAL)
	Build a histogram for image file. More...

virtual bool	buildAllHistograms (int numberOfRLevels=0, ossimHistogramMode mode=OSSIM_HISTO_MODE_NORMAL)
	Build a histograms for all image entries. More...

virtual bool	buildOverview (ossimImageHandlerOverviewCompressionType compressionType=OSSIM_OVERVIEW_COMPRESSION_NONE, ossim_uint32 quality=75, ossimFilterResampler::ossimFilterResamplerType resampleType=ossimFilterResampler::ossimFilterResampler_BOX, bool includeFullResFlag=false)
	Will build over file for theImageFile. More...

virtual bool	buildAllOverviews (ossimImageHandlerOverviewCompressionType compressionType=OSSIM_OVERVIEW_COMPRESSION_NONE, ossim_uint32 quality=75, ossimFilterResampler::ossimFilterResamplerType resampleType=ossimFilterResampler::ossimFilterResampler_BOX, bool includeFullResFlag=false)
	Will build over file for all image entries. More...

virtual bool	buildOverview (const ossimFilename &filename, ossimImageHandlerOverviewCompressionType compressionType=OSSIM_OVERVIEW_COMPRESSION_NONE, ossim_uint32 quality=75, ossimFilterResampler::ossimFilterResamplerType resampleType=ossimFilterResampler::ossimFilterResampler_BOX, bool includeFullResFlag=false)
	Will build an over file for filename. More...

ossimRefPtr< ossimMultiResLevelHistogram >	getImageHistogram () const
	Fetches the current entry image's histogram. More...

virtual void	setImageGeometry (ossimImageGeometry *geom)
	Sets the image geometry object. More...

virtual void	saveImageGeometry () const
	Saves the image geometry to a file that will be made based on the image file name. More...

virtual void	saveImageGeometry (const ossimFilename &geometry_file) const
	Saves the image geometry to a file that will be made based on the image file name. More...

virtual ossimIrect	getBoundingRect (ossim_uint32 resLevel=0) const
	Returns zero-based bounding rectangle of the image. More...

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

virtual void	getDecimationFactors (vector< ossimDpt > &decimations) const
	This returns all decimation for all levels. More...

virtual ossim_uint32	getNumberOfDecimationLevels () const
	This returns the total number of decimation levels. More...

virtual ossim_uint32	getNumberOfReducedResSets () const
	This method is obsolete. More...

virtual void	setFilename (const ossimFilename &filename)
	Sets the filename. More...

virtual const ossimFilename &	getFilename () const
	Returns the filename. More...

virtual bool	isValidRLevel (ossim_uint32 resLevel) const
	Determines if the passed in reslution level is valid. More...

bool	canConnectMyInputTo (ossim_int32 inputIndex, const ossimConnectableObject *object) const
	Connection rule. More...

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...

virtual bool	isBandSelector () const
	Indicates whether or not the image handler can control output band selection via the setOutputBandList method. More...

virtual bool	setOutputBandList (const std::vector< ossim_uint32 > &band_list)
	If the image handler "isBandSeletor()" then the band selection of the output chip can be controlled. More...

virtual bool	setOutputToInputBandList ()
	If the image handler "isBandSeletor()" then the band selection of the output are set to input or identity. More...

virtual bool	isIdentityBandList (const std::vector< ossim_uint32 > &bandList) const
	Convenience method to see if band list is identity. More...

virtual bool	isImageTiled () const
	Indicates whether or not the image is tiled internally. More...

virtual bool	hasMetaData () const

virtual ossimRefPtr< ossimNBandLutDataObject >	getLut () const

virtual bool	hasLut () const

virtual void	loadMetaData ()
	There is an external file with an omd extension. More...

virtual void	setMinPixelValue (ossim_uint32 band, const ossim_float64 &pix)
	convenience method to set min pixel value. More...

virtual void	setMaxPixelValue (ossim_uint32 band, const ossim_float64 &pix)
	convenience method to set max pixel value. More...

virtual void	setNullPixelValue (ossim_uint32 band, const ossim_float64 &pix)
	convenience method to set null pixel value. More...

virtual ossim_uint32	getCurrentEntry () const

virtual ossim_uint32	getNumberOfEntries () const

virtual void	getEntryName (ossim_uint32 entryIdx, std::string &name) const
	Get the name of entry as a string. More...

virtual void	getEntryList (std::vector< ossim_uint32 > &entryList) const

virtual void	getEntryNames (std::vector< ossimString > &entryNames) const

bool	useEntryIndex () const
	Convenience method to determine if entry index should be used for support files, e.g. More...

ossimFilename	getOverviewFile () const

virtual bool	setCurrentEntry (ossim_uint32 entryIdx)

virtual void	setProperty (ossimRefPtr< ossimProperty > property)

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

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

ossimFilename	getFilenameWithThisExtension (const ossimString &ext, bool set_e0_prefix=false) const
	Returns the image file with extension set using supplentary directory for dirname if set. More...

void	getFilenameWithThisExt (const ossimString &ext, ossimFilename &f) const
	Returns the image file with extension set using supplentary directory for dirname if set. More...

ossim_uint32	getStartingResLevel () const

void	setStartingResLevel (ossim_uint32 level)

bool	getOpenOverviewFlag () const

void	setOpenOverviewFlag (bool flag)
	Sets theOpenOverviewFlag. More...

virtual void	setSupplementaryDirectory (const ossimFilename &dir)
	Sets the supplementary directory. More...

virtual const ossimFilename &	getSupplementaryDirectory () const
	Returns the supplementary directory. More...

const ossimString &	getImageID () const
	Fetches the image ID. More...

void	setImageID (const ossimString &id)
	Sets the image ID in case it is externally generated. More...

ossimPixelType	getPixelType () const
	Returns the raster pixel alignment type. More...

virtual bool	getRgbBandList (std::vector< ossim_uint32 > &bandList) const
	Convenience method to get the zero based rgb output band list. More...

template<class T >
std::shared_ptr< T >	getStateAs ()

template<class T >
std::shared_ptr< const T >	getStateAs () const

std::shared_ptr< ossim::ImageHandlerState >	getState ()

std::shared_ptr< const ossim::ImageHandlerState >	getState () const

void	setState (std::shared_ptr< ossim::ImageHandlerState > state)

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

Protected Member Functions
virtual ossimRefPtr< ossimImageGeometry >	getInternalImageGeometry () const
	Initializes theGeometry from USGS DEM header. More...

virtual	~ossimUsgsDemTileSource ()

const ossimUsgsDemTileSource &	operator= (const ossimUsgsDemTileSource &rhs)

	ossimUsgsDemTileSource (const ossimUsgsDemTileSource &)

template<class T >
bool	fillBuffer (T, const ossimIrect &tile_rect, const ossimIrect &clip_rect, ossimImageData *tile)
	Returns true on success, false on error. More...

void	gatherStatistics ()

Protected Member Functions inherited from ossimImageHandler
virtual ossimRefPtr< ossimImageGeometry >	getExternalImageGeometry () const
	Returns the image geometry object associated with this tile source or NULL if non defined. More...

virtual bool	getOverviewTile (ossim_uint32 resLevel, ossimImageData *result)
	Method to get an overview tile. More...

bool	initVertices (const char *file)
	Opens file and attempts to initialize the valid image vertices. More...

virtual void	completeOpen ()
	Will complete the opening process. More...

void	initImageParameters (ossimImageGeometry *geom) const
	Convenience method to set things needed in the image geometry from the image handler. More...

virtual void	establishDecimationFactors ()
	Virtual method determines the decimation factors at each resolution level. More...

virtual bool	setOutputBandList (const std::vector< ossim_uint32 > &inBandList, std::vector< ossim_uint32 > &outBandList)
	Convenience method to set output band list. More...

void	getFilenameWithNoExtension (ossimFilename &f) const
	Get filename with no extension, using supplentary directory for dirname if set. More...

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
ossimDemGrid *	theDem

ossimRefPtr< ossimImageData >	theTile

ossim_float64	theNullValue

ossim_float64	theMinHeight

ossim_float64	theMaxHeight

bool	theFeetFlag

bool	theIsDemFlag

ossimScalarType	theScalarType
	This can be either OSSIM_SINT16 or OSSIM_FLOAT32. More...

Protected Attributes inherited from ossimImageHandler
ossimFilename	theImageFile

ossimFilename	theOverviewFile

ossimFilename	theSupplementaryDirectory

ossimRefPtr< ossimImageHandler >	theOverview

vector< ossimIpt >	theValidImageVertices

ossimImageMetaData	theMetaData

ossimRefPtr< ossimImageGeometry >	theGeometry

ossimRefPtr< ossimNBandLutDataObject >	theLut

std::vector< ossimDpt >	theDecimationFactors

ossimString	theImageID

ossim_uint32	theStartingResLevel
	theStartingResLevel If set to something other than zero(default) this is indicative that the reader is an overview. More...

bool	theOpenOverviewFlag
	If true opening of overviews will be attempted. More...

ossimPixelType	thePixelType

std::shared_ptr< ossim::ImageHandlerState >	m_state

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

Additional Inherited Members
Public Types inherited from ossimImageHandler
enum	ossimImageHandlerOverviewCompressionType { OSSIM_OVERVIEW_COMPRESSION_NONE = 0, OSSIM_OVERVIEW_COMPRESSION_JPEG, OSSIM_OVERVIEW_COMPRESSION_LZW, OSSIM_OVERVIEW_COMPRESSION_DEFLATE, OSSIM_OVERVIEW_COMPRESSION_PACKBITS }

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

Detailed Description

Definition at line 24 of file ossimUsgsDemTileSource.h.

Constructor & Destructor Documentation

◆ ossimUsgsDemTileSource() [1/2]

ossimUsgsDemTileSource::ossimUsgsDemTileSource ( )

Definition at line 43 of file ossimUsgsDemTileSource.cpp.

    :
       ossimImageHandler(),
       theDem(0),
       theTile(0),
       theNullValue(0.0),
       theMinHeight(0.0),
       theMaxHeight(0.0),
       theFeetFlag(false),
       theIsDemFlag(false),
       theScalarType(OSSIM_SINT16)
 {
    // Construction not complete.  Users should call "open" method.
 }

◆ ~ossimUsgsDemTileSource()

ossimUsgsDemTileSource::~ossimUsgsDemTileSource ( )

protectedvirtual

Definition at line 58 of file ossimUsgsDemTileSource.cpp.

References theDem, and theTile.

 {
    if (theDem)
    {
       delete theDem;
       theDem = 0;
    }
    theTile = 0;
 }

◆ ossimUsgsDemTileSource() [2/2]

ossimUsgsDemTileSource::ossimUsgsDemTileSource ( const ossimUsgsDemTileSource & )

protected

Definition at line 560 of file ossimUsgsDemTileSource.cpp.

561 {

562 }

Member Function Documentation

◆ fillBuffer()

template<class T >

bool ossimUsgsDemTileSource::fillBuffer	(	T	,
		const ossimIrect &	tile_rect,
		const ossimIrect &	clip_rect,
		ossimImageData *	tile
	)

protected

Returns true on success, false on error.

Definition at line 173 of file ossimUsgsDemTileSource.cpp.

References ossimImageData::getBuf(), ossimDemGrid::getElevation(), ossimDemGrid::getHeader(), ossimDemHeader::getSpatialResZ(), ossimImageData::getWidth(), ossimIrect::lr(), MTRS_PER_FT, theDem, theFeetFlag, theNullValue, ossimIrect::ul(), ossimIpt::x, and ossimIpt::y.

Referenced by getTile().

 {
    const ossim_uint32 TILE_WIDTH = tile->getWidth();
 
    T* d = static_cast<T*>(tile->getBuf());
    
    ossim_float32 spatialResZ = theDem->getHeader().getSpatialResZ();
    if (spatialResZ == 0.0) spatialResZ = 1.0;
 
    // Compute the starting offset.
    ossim_uint32 offset = (clip_rect.ul().y - tile_rect.ul().y) * TILE_WIDTH +
       clip_rect.ul().x - tile_rect.ul().x;
 
    for (ossim_int32 line = clip_rect.ul().y; line <= clip_rect.lr().y; ++line)
    {
       // Loop in the longitude or sample direction.
       int samp_offset = 0;
       for (ossim_int32 samp = clip_rect.ul().x; samp <= clip_rect.lr().x; ++samp)
       {
          ossim_float32 p = theDem->getElevation(samp, line);
          if (p != theNullValue)
          {
             p *= spatialResZ;
             if (theFeetFlag) p = p * MTRS_PER_FT;
          }
          d[offset + samp_offset] = static_cast<T>(p);
          ++samp_offset;
       }
       offset += TILE_WIDTH;
    }
 
    return true;
 }

◆ gatherStatistics()

void ossimUsgsDemTileSource::gatherStatistics ( )

protected

◆ getImageGeometry()

ossimRefPtr< ossimImageGeometry > ossimUsgsDemTileSource::getImageGeometry ( )

virtual

Override base-class method to make sure the internal geometry is explored before extending.

Reimplemented from ossimImageHandler.

Definition at line 369 of file ossimUsgsDemTileSource.cpp.

References ossimImageGeometryRegistry::extendGeometry(), ossimRefPtr< T >::get(), ossimImageHandler::getExternalImageGeometry(), getInternalImageGeometry(), ossimImageGeometry::getProjection(), ossimImageHandler::initImageParameters(), ossimImageGeometryRegistry::instance(), and ossimImageHandler::theGeometry.

 {
    if ( !theGeometry )
    {
       // Check for external geom:
       theGeometry = getExternalImageGeometry();
 
       if ( !theGeometry )
       {
          // Check the internal geometry first to avoid a factory call.
          theGeometry = getInternalImageGeometry();
 
          // At this point it is assured theGeometry is set.
 
          //---
          // WARNING:
          // Must create/set theGeometry at this point or the next call to
          // ossimImageGeometryRegistry::extendGeometry will put us in an infinite loop
          // as it does a recursive call back to ossimImageHandler::getImageGeometry().
          //---         
 
          // Check for set projection.
          if ( !theGeometry->getProjection() )
          {
             // Try factories for projection.
             ossimImageGeometryRegistry::instance()->extendGeometry(this);
          }
       }
 
       // Set image things the geometry object should know about.
       initImageParameters( theGeometry.get() );
    }
 
    return theGeometry;
 }

◆ getImageRectangle()

ossimIrect ossimUsgsDemTileSource::getImageRectangle ( ossim_uint32 reduced_res_level = 0 ) const

virtual

Returns the zero based image rectangle for the reduced resolution data set (rrds) passed in.

Note that rrds 0 is the highest resolution rrds.

Reimplemented from ossimImageHandler.

Definition at line 211 of file ossimUsgsDemTileSource.cpp.

References getNumberOfLines(), and getNumberOfSamples().

Referenced by getTile().

 {
    return ossimIrect(0,
                      0,
                      getNumberOfSamples(reduced_res_level) - 1,
                      getNumberOfLines(reduced_res_level)   - 1);
 }

◆ getImageTileHeight()

ossim_uint32 ossimUsgsDemTileSource::getImageTileHeight ( ) const

virtual

Returns the tile width of the image or 0 if the image is not tiled.

Note: this is not the same as the ossimImageSource::getTileWidth which returns the output tile width which can be different than the internal image tile width on disk.

Implements ossimImageHandler.

Definition at line 502 of file ossimUsgsDemTileSource.cpp.

 {
    return 0;
 }

◆ getImageTileWidth()

ossim_uint32 ossimUsgsDemTileSource::getImageTileWidth ( ) const

virtual

Returns the tile width of the image or 0 if the image is not tiled.

Note: this is not the same as the ossimImageSource::getTileWidth which returns the output tile width which can be different than the internal image tile width on disk.

Implements ossimImageHandler.

Definition at line 497 of file ossimUsgsDemTileSource.cpp.

 {
    return 0;
 }

◆ getInternalImageGeometry()

ossimRefPtr< ossimImageGeometry > ossimUsgsDemTileSource::getInternalImageGeometry ( ) const

protectedvirtual

Initializes theGeometry from USGS DEM header.

This is called by base ossimImageHandler::getImageGeometry if theGeometry is not set. External callers should not go through this method but call "getImageGeometry" instead for efficiency reasons.

Returns: Pointer to geometry or null if header not found.

Reimplemented from ossimImageHandler.

Definition at line 406 of file ossimUsgsDemTileSource.cpp.

References ossimDemGrid::getHeader(), and theDem.

Referenced by getImageGeometry().

 {
    ossimRefPtr<ossimImageGeometry> geom = new ossimImageGeometry();
    
    if (theDem)
    {
       const ossimDemHeader HDR = theDem->getHeader();
       if (traceDebug())
       {
          ossimNotify(ossimNotifyLevel_DEBUG)
             << "ossimUsgsDemTileSource::getInternalImageGeometry DEBUG:"
             << "\nDEM Header:"
             << std::endl;
          HDR.print(ossimNotify(ossimNotifyLevel_DEBUG));
       }
       
       // The DEM's image geometry is a map projection, obtained here via KWL:
       ossimKeywordlist proj_kwl;
       if ( HDR.getImageGeometry(proj_kwl) ) 
       {
          if (traceDebug())
          {
             ossimNotify(ossimNotifyLevel_DEBUG)
                << "ossimUsgsDemTileSource::getInternalImageGeometry DEBUG:"
                << "keyword list:\n" << proj_kwl
                << std::endl;
          }
          
          // Capture for next time.
          ossimRefPtr<ossimProjection> proj =
             ossimProjectionFactoryRegistry::instance()->
             createProjection(proj_kwl);
          if ( proj.valid() )
          {
             geom->setProjection(proj.get());
          }
       }
    }
    
    return geom;
 }

◆ getLongName()

ossimString ossimUsgsDemTileSource::getLongName ( ) const

virtual

Reimplemented from ossimObject.

Definition at line 512 of file ossimUsgsDemTileSource.cpp.

 {
    return ossimString("usgs dem reader");
 }

◆ getMaxPixelValue()

double ossimUsgsDemTileSource::getMaxPixelValue ( ossim_uint32 band = 0 ) const

virtual

Returns the max pixel of the band.

Reimplemented from ossimImageHandler.

Definition at line 541 of file ossimUsgsDemTileSource.cpp.

References ossimImageMetaData::getMaxPix(), ossimImageMetaData::getNumberOfBands(), theMaxHeight, and ossimImageHandler::theMetaData.

 {
    if(theMetaData.getNumberOfBands())
    {
       return theMetaData.getMaxPix(band);
    }
    return theMaxHeight; 
 }

◆ getMinPixelValue()

double ossimUsgsDemTileSource::getMinPixelValue ( ossim_uint32 band = 0 ) const

virtual

Retuns the min pixel value.

If there was an external eta data file then use the meta data from that file. If not given then we will return the default min

Reimplemented from ossimImageHandler.

Definition at line 532 of file ossimUsgsDemTileSource.cpp.

References ossimImageMetaData::getMinPix(), ossimImageMetaData::getNumberOfBands(), ossimImageHandler::theMetaData, and theMinHeight.

 {
    if(band < theMetaData.getNumberOfBands())
    {
       return theMetaData.getMinPix(band);
    }
    return theMinHeight; 
 }

◆ getNullPixelValue()

double ossimUsgsDemTileSource::getNullPixelValue ( ossim_uint32 band = 0 ) const

virtual

Each band has a null pixel associated with it.

The null pixel represents an invalid value.

Reimplemented from ossimImageHandler.

Definition at line 527 of file ossimUsgsDemTileSource.cpp.

References theNullValue.

 {
    return theNullValue;
 }

◆ getNumberOfInputBands()

ossim_uint32 ossimUsgsDemTileSource::getNumberOfInputBands ( ) const

virtual

Returns the number of bands in the image.

Satisfies pure virtual requirement from ImageHandler class.

Implements ossimImageSource.

Definition at line 517 of file ossimUsgsDemTileSource.cpp.

 {
    return 1;
 }

◆ getNumberOfLines()

ossim_uint32 ossimUsgsDemTileSource::getNumberOfLines ( ossim_uint32 reduced_res_level = 0 ) const

virtual

Returns the number of lines in the image.

Satisfies pure virtual requirement from ImageHandler class.

Implements ossimImageHandler.

Definition at line 463 of file ossimUsgsDemTileSource.cpp.

References ossimDemGrid::getHeight(), ossimImageHandler::getNumberOfLines(), theDem, ossimImageHandler::theOverview, and ossimRefPtr< T >::valid().

Referenced by getImageRectangle().

 {
    ossim_uint32 result = 0;
    if (reduced_res_level == 0)
    {
       if (theDem)
       {
          result = theDem->getHeight();
       }
    }
    else if (theOverview.valid())
    {
       result = theOverview->getNumberOfLines(reduced_res_level);
    }
    return result;
 }

◆ getNumberOfOutputBands()

ossim_uint32 ossimUsgsDemTileSource::getNumberOfOutputBands ( ) const

virtual

Returns the number of bands in a tile returned from this TileSource.

Reimplemented from ossimImageSource.

Definition at line 522 of file ossimUsgsDemTileSource.cpp.

Referenced by getTile().

 {
    return 1;
 }

◆ getNumberOfSamples()

ossim_uint32 ossimUsgsDemTileSource::getNumberOfSamples ( ossim_uint32 reduced_res_level = 0 ) const

virtual

Returns the number of samples in the image.

Satisfies pure virtual requirement from ImageHandler class.

Implements ossimImageHandler.

Definition at line 480 of file ossimUsgsDemTileSource.cpp.

References ossimImageHandler::getNumberOfSamples(), ossimDemGrid::getWidth(), theDem, ossimImageHandler::theOverview, and ossimRefPtr< T >::valid().

Referenced by getImageRectangle().

 {
    ossim_uint32 result = 0;
    if (reduced_res_level == 0)
    {
       if (theDem)
       {
          result = theDem->getWidth();
       }
    }
    else if (theOverview.valid())
    {
       result = theOverview->getNumberOfSamples(reduced_res_level);
    }
    return result;
 }

◆ getOutputScalarType()

ossimScalarType ossimUsgsDemTileSource::getOutputScalarType ( ) const

virtual

Returns the output pixel type of the tile source.

Reimplemented from ossimImageSource.

Definition at line 448 of file ossimUsgsDemTileSource.cpp.

References theScalarType.

 {
    return theScalarType;
 }

◆ getShortName()

ossimString ossimUsgsDemTileSource::getShortName ( ) const

virtual

Reimplemented from ossimObject.

Definition at line 507 of file ossimUsgsDemTileSource.cpp.

 {
    return ossimString("usgs dem");
 }

◆ getTile() [1/2]

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

virtual

Returns: the requested region of interest

Reimplemented from ossimImageSource.

Definition at line 68 of file ossimUsgsDemTileSource.cpp.

References ossimRefPtr< T >::get(), ossimDataObject::getDataObjectStatus(), ossimImageData::makeBlank(), OSSIM_NULL, ossimImageData::setImageRectangle(), theTile, and ossimRefPtr< T >::valid().

 {
    if (theTile.valid())
    {
       // Image rectangle must be set prior to calling getTile.
       theTile->setImageRectangle(tile_rect);
       
       if ( getTile( theTile.get(), resLevel ) == false )
       {
          if (theTile->getDataObjectStatus() != OSSIM_NULL)
          {
             theTile->makeBlank();
          }
       }
    }
    
    return theTile;
 }

◆ getTile() [2/2]

bool ossimUsgsDemTileSource::getTile	(	ossimImageData *	result,
		ossim_uint32	resLevel = `0`
	)

virtual

Method to get a tile.

Parameters

result The tile to stuff. Note The requested rectangle in full image space and bands should be set in the result tile prior to passing. It will be an error if: result.getNumberOfBands() != this->getNumberOfOutputBands()

Returns: true on success false on error. If return is false, result is undefined so caller should handle appropriately with makeBlank or whatever.

Reimplemented from ossimImageSource.

Definition at line 88 of file ossimUsgsDemTileSource.cpp.

References ossimIrect::clipToRect(), ossimIrect::completely_within(), fillBuffer(), getImageRectangle(), ossimImageData::getImageRectangle(), ossimImageData::getMaxPix(), ossimImageData::getMinPix(), ossimImageData::getNullPix(), ossimImageData::getNumberOfBands(), getNumberOfOutputBands(), ossimImageHandler::getOverviewTile(), ossimIrect::intersects(), isOpen(), ossimSource::isSourceEnabled(), ossimImageHandler::isValidRLevel(), ossimImageData::makeBlank(), OSSIM_FLOAT32, ossimReferenced::ref(), ossimImageData::setMaxPix(), ossimImageData::setMinPix(), ossimImageData::setNullPix(), status, theScalarType, theTile, ossimReferenced::unref(), and ossimImageData::validate().

 {
    bool status = false;
 
    //---
    // Not open, this tile source bypassed, or invalid res level,
    // return a blank tile.
    //---
    if( isOpen() && isSourceEnabled() && isValidRLevel(resLevel) &&
        result && (result->getNumberOfBands() == getNumberOfOutputBands()) )
    {
       result->ref(); // Increment ref count.
 
       //---
       // Check for overview tile.  Some overviews can contain r0 so always
       // call even if resLevel is 0.  Method returns true on success, false
       // on error.
       //---
       status = getOverviewTile(resLevel, result);
       
       if (status) // From old code.  Not sure if still needed.
       {
          result->setMinPix(theTile->getMinPix(), theTile->getNumberOfBands());
          result->setMaxPix(theTile->getMaxPix(), theTile->getNumberOfBands());
          result->setNullPix(theTile->getNullPix(), theTile->getNumberOfBands());
       }
       
       if (!status) // Did not get an overview tile.
       {
          status = true;
          
          ossimIrect tile_rect = result->getImageRectangle();
          
          ossimIrect image_rect = getImageRectangle(resLevel);
          
          //---
          // See if any point of the requested tile is in the image.
          //---
          if ( tile_rect.intersects(image_rect) )
          {
             ossimIrect clip_rect = tile_rect.clipToRect(image_rect);
             
             if ( !tile_rect.completely_within(clip_rect) )
             {
                // Start with a blank tile.
                result->makeBlank();
             }
             
             // Load the tile buffer with data from the dem cell.
             if (theScalarType == OSSIM_FLOAT32)
             {
                status = fillBuffer(ossim_float32(0.0),
                                    tile_rect,
                                    clip_rect,
                                    result);
             }
             else
             {
                status = fillBuffer(ossim_sint16(0),
                                    tile_rect,
                                    clip_rect,
                                    result);
             }
             if (status == true)
             {
                result->validate();
             }
          }    
          else // No intersection:  if ( tile_rect.intersects(image_rect) )
          {
             result->makeBlank();
          }
       }
 
       result->unref(); // Decrement ref count.
    }
 
    return status;
 }

◆ getTileHeight()

ossim_uint32 ossimUsgsDemTileSource::getTileHeight ( ) const

virtual

Returns the height of the output tile.

Reimplemented from ossimImageSource.

Definition at line 458 of file ossimUsgsDemTileSource.cpp.

References ossimImageData::getHeight(), theTile, and ossimRefPtr< T >::valid().

 {
    return ( theTile.valid() ? theTile->getHeight() : 0 );
 }

◆ getTileWidth()

ossim_uint32 ossimUsgsDemTileSource::getTileWidth ( ) const

virtual

Returns the width of the output tile.

Reimplemented from ossimImageSource.

Definition at line 453 of file ossimUsgsDemTileSource.cpp.

References ossimImageData::getWidth(), theTile, and ossimRefPtr< T >::valid().

 {
    return ( theTile.valid() ? theTile->getWidth() : 0 );
 }

◆ isOpen()

bool ossimUsgsDemTileSource::isOpen ( ) const

virtual

Derived classes must implement this method to be concrete.

Returns: true if open, false if not.

Implements ossimImageHandler.

Definition at line 550 of file ossimUsgsDemTileSource.cpp.

References theDem.

Referenced by getTile().

 {
    return (theDem ? true : false );
 }

◆ loadState()

bool ossimUsgsDemTileSource::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.

Keywords picked up by this method: dem_type: usgs_dem scalar_type: ossim_sint16 (default) or scalar_type: ossim_float32

Reimplemented from ossimImageHandler.

Definition at line 313 of file ossimUsgsDemTileSource.cpp.

References ossimKeywordlist::find(), and ossimImageHandler::loadState().

 {
    if (ossimImageHandler::loadState(kwl, prefix))
    {
       //***
       // Look for "dem_type: usgs_dem" key value pair.
       // Note:  If not in the keyword list the "open" will look for it on
       //        disk.
       //***
       const char* lookup = kwl.find(prefix, DEM_TYPE_KW);
       if (lookup)
       {
          ossimString s = lookup;
          s.downcase();
          if (s == USGS_DEM_KW) theIsDemFlag = true;
       }
 
       //---
       // Look for scalar type override.
       //
       // Note: We only allow float or signed 16 bit.
       //---
       lookup = kwl.find(prefix, ossimKeywordNames::SCALAR_TYPE_KW);
       if (lookup)
       {
          ossimScalarType st =
             static_cast<ossimScalarType>(ossimScalarTypeLut::instance()->
                                          getEntryNumber(lookup));
          if ( (st == OSSIM_FLOAT32) || (st == OSSIM_SINT16))
          {
             theScalarType = st;
          }
          else
          {
             if (traceDebug())
             {
                ossimNotify(ossimNotifyLevel_WARN)
                   << "ossimUsgsDemTileSource::loadState WARNING:"
                   << "\nInvalid scalar type: "
                   << ossimScalarTypeLut::instance()->
                   getEntryString(st)
                   << std::endl;
             }
          }
       }
 
       if (open())
       {
          return true;
       }
    }
 
    return false;
 }

◆ open()

bool ossimUsgsDemTileSource::open ( )

virtual

Returns true if the "theImageFile can be opened.

If the extension is not equal to ".dem" this will attempt to look for an ".omd" file with the keyword pair "dem_type: usgs_dem" in it.

Optionally users can change the scalar type from signed 16 bit to float with the keyword pair "scalar_type: ossim_float32"

Implements ossimImageHandler.

Definition at line 219 of file ossimUsgsDemTileSource.cpp.

 {
    static const char MODULE[] = "ossimUsgsDemTileSource::open";
 
    if (traceDebug())
    {
       CLOG << "DEBUG:"
            << "\nAttempting to parse file:  " << theImageFile.c_str()
            << std::endl;
    }
 
    theIsDemFlag = ossimDemUtil::isUsgsDem(theImageFile);
 
    if (theIsDemFlag)
    {
       // Open up the file for reading.
       std::ifstream is(theImageFile.c_str(),
                        std::ios_base::in | std::ios_base::binary);
       if (is.good())
       {
          // Start out with a fresh dem.
          if (theDem) delete theDem;
          
          //---
          // Set the null to -32768.  This will also be the missing data values.
          //---
          theNullValue = OSSIM_DEFAULT_NULL_PIX_SINT16;
          
          //---
          // Read the dem.
          // 
          // NOTE:  This defines the missing data value.  It should be the
          // same as null for mosaicing and min/max calculations.
          //---
          theDem = new ossimDemGrid(theNullValue);
          theDem->read(is);
          
          is.close();
       }
       else
       {
          theIsDemFlag = false;
       }
    }
    
    if (theIsDemFlag)
    {
       theFeetFlag  = (theDem->getHeader().getElevationUnits() == 1) ?
          true : false;
       
       theMinHeight = theFeetFlag ? theDem->getHeader().getMinimumElev() *
          MTRS_PER_FT : theDem->getHeader().getMinimumElev();
       theMaxHeight = theFeetFlag ? theDem->getHeader().getMaximumElev() *
          MTRS_PER_FT : theDem->getHeader().getMaximumElev();
       
       completeOpen();
       
       //---
       // Set up the tiles.  Note the blank tile will not get initialized to
       // save memory.  This includes setting the min and max pixel value
       // gathered from the statistics.
       //---
       theTile = ossimImageDataFactory::instance()->create(this, this);
       theTile->initialize();
       
       if (traceDebug())
       {
          CLOG << setiosflags(ios::fixed) << setprecision(5) << "DEBUG:"
               << "\nNull pix:  " << (theTile->getNullPix(0))
               << "\nMin  pix:  " << (theTile->getMinPix(0))
               << "\nMax  pix:  " << (theTile->getMaxPix(0))
               << "\nlines:     " << theDem->getHeight()
               << "\nsamples:   " << theDem->getWidth()
               << std::endl;
       }
    }
 
    return theIsDemFlag;
 }

◆ operator=()

const ossimUsgsDemTileSource & ossimUsgsDemTileSource::operator= ( const ossimUsgsDemTileSource & rhs )

protected

Definition at line 555 of file ossimUsgsDemTileSource.cpp.

 {
    return rhs;
 } 

◆ saveState()

bool ossimUsgsDemTileSource::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 ossimImageHandler.

Definition at line 299 of file ossimUsgsDemTileSource.cpp.

References ossimKeywordlist::add().

 {
    // Save of the dem type keyword.
    kwl.add(prefix, DEM_TYPE_KW, USGS_DEM_KW, true);
 
    // Save the scalar type.
    kwl.add(prefix,
            ossimKeywordNames::SCALAR_TYPE_KW,
            ossimScalarTypeLut::instance()->getEntryString(theScalarType));
    
    return ossimImageHandler::saveState(kwl, prefix);
 }

Member Data Documentation

◆ theDem

ossimDemGrid* ossimUsgsDemTileSource::theDem

protected

Definition at line 177 of file ossimUsgsDemTileSource.h.

Referenced by fillBuffer(), getInternalImageGeometry(), getNumberOfLines(), getNumberOfSamples(), isOpen(), and ~ossimUsgsDemTileSource().

◆ theFeetFlag

bool ossimUsgsDemTileSource::theFeetFlag

protected

Definition at line 182 of file ossimUsgsDemTileSource.h.

Referenced by fillBuffer().

◆ theIsDemFlag

bool ossimUsgsDemTileSource::theIsDemFlag

protected

Definition at line 183 of file ossimUsgsDemTileSource.h.

◆ theMaxHeight

ossim_float64 ossimUsgsDemTileSource::theMaxHeight

protected

Definition at line 181 of file ossimUsgsDemTileSource.h.

Referenced by getMaxPixelValue().

◆ theMinHeight

ossim_float64 ossimUsgsDemTileSource::theMinHeight

protected

Definition at line 180 of file ossimUsgsDemTileSource.h.

Referenced by getMinPixelValue().

◆ theNullValue

ossim_float64 ossimUsgsDemTileSource::theNullValue

protected

Definition at line 179 of file ossimUsgsDemTileSource.h.

Referenced by fillBuffer(), and getNullPixelValue().

◆ theScalarType

ossimScalarType ossimUsgsDemTileSource::theScalarType

protected

This can be either OSSIM_SINT16 or OSSIM_FLOAT32.

Default = OSSIM_SINT16 Can be changed via ".omd" file keyword:

Definition at line 189 of file ossimUsgsDemTileSource.h.

Referenced by getOutputScalarType(), and getTile().

◆ theTile

ossimRefPtr<ossimImageData> ossimUsgsDemTileSource::theTile

protected

Definition at line 178 of file ossimUsgsDemTileSource.h.

Referenced by getTile(), getTileHeight(), getTileWidth(), and ~ossimUsgsDemTileSource().

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

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ossimUsgsDemTileSource() [1/2]

◆ ~ossimUsgsDemTileSource()

◆ ossimUsgsDemTileSource() [2/2]

Member Function Documentation

◆ fillBuffer()

◆ gatherStatistics()

◆ getImageGeometry()

◆ getImageRectangle()

◆ getImageTileHeight()

◆ getImageTileWidth()

◆ getInternalImageGeometry()

◆ getLongName()

◆ getMaxPixelValue()

◆ getMinPixelValue()

◆ getNullPixelValue()

◆ getNumberOfInputBands()

◆ getNumberOfLines()

◆ getNumberOfOutputBands()

◆ getNumberOfSamples()

◆ getOutputScalarType()

◆ getShortName()

◆ getTile() [1/2]

◆ getTile() [2/2]

◆ getTileHeight()

◆ getTileWidth()

◆ isOpen()

◆ loadState()

◆ open()

◆ operator=()

◆ saveState()

Member Data Documentation

◆ theDem

◆ theFeetFlag

◆ theIsDemFlag

◆ theMaxHeight

◆ theMinHeight

◆ theNullValue

◆ theScalarType

◆ theTile