The DTED elevation data base is also an elevation source but allows one to point to an file based elevation tree. More...

#include <ossimDtedElevationDatabase.h>

Inheritance diagram for ossimDtedElevationDatabase:

Public Types
typedef std::vector< ossimRefPtr< CellInfo > >	DirectMap

Public Types inherited from ossimElevationCellDatabase
typedef std::map< ossim_uint64, ossimRefPtr< CellInfo > >	CellMap

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

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

Public Member Functions
	ossimDtedElevationDatabase ()

	ossimDtedElevationDatabase (const ossimDtedElevationDatabase &rhs)

virtual	~ossimDtedElevationDatabase ()

virtual ossimObject *	dup () const

virtual bool	open (const ossimString &connectionString)
	Open a connection to a database. More...

virtual bool	pointHasCoverage (const ossimGpt &gpt) const
	METHOD: pointHasCoverage(gpt) Returns TRUE if coverage exists over gpt: More...

virtual bool	getAccuracyInfo (ossimElevationAccuracyInfo &info, const ossimGpt &gpt) const

virtual double	getHeightAboveMSL (const ossimGpt &)
	Height access methods: More...

virtual double	getHeightAboveEllipsoid (const ossimGpt &gpt)

virtual ossim_uint64	createId (const ossimGpt &pt) const

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

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

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

Public Member Functions inherited from ossimElevationCellDatabase
	ossimElevationCellDatabase ()

	ossimElevationCellDatabase (const ossimElevationCellDatabase &src)

virtual ossim_uint32	getMinOpenCells () const

virtual ossim_uint32	getMaxOpenCells () const

virtual void	setMinMaxOpenCells (ossim_uint64 minCellCount, ossim_uint64 maxCellCount)

virtual bool	getMemoryMapCellsFlag () const

virtual void	setMemoryMapCellsFlag (bool flag)

virtual void	getOpenCellList (std::vector< ossimFilename > &list) const

void	getCellsForBounds (const ossim_float64 &minLat, const ossim_float64 &minLon, const ossim_float64 &maxLat, const ossim_float64 &maxLon, std::vector< ossimFilename > &cells, ossim_uint32 maxNumberOfCells=0)
	Gets a list of elevation cells needed to cover bounding box. More...

virtual ossimRefPtr< ossimElevCellHandler >	getOrCreateCellHandler (const ossimGpt &gpt)

Public Member Functions inherited from ossimElevationDatabase
	ossimElevationDatabase ()

	ossimElevationDatabase (const ossimElevationDatabase &src)

virtual double	getMeanSpacingMeters () const
	METHOD: meanSpacingMeters() This method returns the post spacing in the region of gpt: More...

virtual void	setGeoid (ossimGeoid *geoid)

ossimGeoid *	getGeoid ()

const ossimGeoid *	getGeoid () const

const ossimString &	getConnectionString () const

Public Member Functions inherited from ossimElevSource
bool	intersectRay (const ossimEcefRay &ray, ossimGpt &gpt, double defaultElevValue=0.0)
	METHOD: intersectRay() More...

virtual double	getMinHeightAboveMSL () const
	Access methods for the bounding elevations: More...

virtual double	getMaxHeightAboveMSL () const

double	getNullHeightValue () const
	Special numeric quantities as defined by this source: More...

double	getSeaLevelValue () const

virtual const ossimGrect &	getBoundingGndRect () const
	METHODS: accuracyLE90(), accuracyCE90() Returns the vertical and horizontal accuracy (90% confidence) in the region of gpt: More...

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

virtual void	initialize ()
	Implement ossimSource base-class pure virtuals: More...

virtual bool	getComputeStatisticsFlag () const
	Opens a stream to an elevation cell. More...

virtual void	setComputeStatisticsFlag (bool flag)
	Sets the flag which controls whether or not statistics will be computed upon opening a cell and not finding a corresponding statistics file. More...

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 void	setProperty (ossimRefPtr< ossimProperty > property)

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

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

Public Member Functions inherited from 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 ossimString	getShortName () const

virtual ossimString	getLongName () const

virtual ossimString	getClassName () const

virtual RTTItypeid	getType () const

virtual bool	canCastTo (ossimObject *obj) const

virtual bool	canCastTo (const RTTItypeid &id) const

virtual bool	canCastTo (const ossimString &parentClassName) const

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

Public Member Functions inherited from ossimReferenced
	ossimReferenced ()

	ossimReferenced (const ossimReferenced &)

ossimReferenced &	operator= (const ossimReferenced &)

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

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

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

int	referenceCount () const

Public Member Functions inherited from ossimListenerManager
	ossimListenerManager ()

virtual	~ossimListenerManager ()

virtual void	fireEvent (ossimEvent &event)

virtual bool	addListener (ossimListener *listener)

virtual bool	removeListener (ossimListener *listener)

virtual bool	findListener (ossimListener *listener)

Public Member Functions inherited from ossimPropertyInterface
	ossimPropertyInterface ()

virtual	~ossimPropertyInterface ()

virtual ossimString	getPropertyValueAsString (const ossimString &name) const

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

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

Public Member Functions inherited from ossimErrorStatusInterface
	ossimErrorStatusInterface ()

virtual	~ossimErrorStatusInterface ()

virtual ossimErrorCode	getErrorStatus () const

virtual ossimString	getErrorStatusString () const

virtual void	setErrorStatus (ossimErrorCode error_status) const

virtual void	setErrorStatus () const

virtual void	clearErrorStatus () const

bool	hasError () const

Protected Member Functions
bool	openDtedDirectory (const ossimFilename &dir)

void	createRelativePath (ossimFilename &file, const ossimGpt &gpt) const

void	createFullPath (ossimFilename &file, const ossimGpt &gpt) const

virtual ossimRefPtr< ossimElevCellHandler >	createCell (const ossimGpt &gpt)

bool	inititializeExtension (const ossimFilename &dir)
	Scans directory and set m_extension to extension of first dted file found. More...

Protected Member Functions inherited from ossimElevationCellDatabase
virtual void	remove (ossim_uint64 id)

void	flushCacheToMinOpenCells ()

Protected Member Functions inherited from ossimElevationDatabase
virtual	~ossimElevationDatabase ()

virtual double	getOffsetFromEllipsoid (const ossimGpt &gpt)

Protected Member Functions inherited from ossimElevSource
virtual	~ossimElevSource ()

	ossimElevSource ()
	Constructors/Destructors: More...

	ossimElevSource (const ossimElevSource &src)

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
ossimString	m_extension

bool	m_upcase

ossimRefPtr< ossimElevCellHandler >	m_lastHandler

std::mutex	m_mutex

Protected Attributes inherited from ossimElevationCellDatabase
ossim_uint32	m_minOpenCells

ossim_uint32	m_maxOpenCells

std::mutex	m_cacheMapMutex

CellMap	m_cacheMap

ossim_uint32	m_memoryMapCellsFlag

	TYPE_DATA

Protected Attributes inherited from ossimElevationDatabase
ossimString	m_connectionString

ossimRefPtr< ossimGeoid >	m_geoid

ossim_float64	m_meanSpacing

Protected Attributes inherited from ossimElevSource
double	theMinHeightAboveMSL
	Data members: More...

double	theMaxHeightAboveMSL

double	theNullHeightValue

double	theSeaLevelValue

ossimGrect	theGroundRect

bool	theComputeStatsFlag

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

Detailed Description

The DTED elevation data base is also an elevation source but allows one to point to an file based elevation tree.

The general format of a DTED elevation tree:

<root dir>="">/e|w<longitude value>="">/n|s<latitiude value>="">.<extension> Exmaple 1 kilometer: <root dir>="">/w023/n15.dt0

Note for 1 kilimeter the extension is dt0 and for 90 meter post spacing it is .dt1 and for 30 meter spacing it is .dt2

Definition at line 22 of file ossimDtedElevationDatabase.h.

Member Typedef Documentation

◆ DirectMap

typedef std::vector<ossimRefPtr<CellInfo> > ossimDtedElevationDatabase::DirectMap

Definition at line 25 of file ossimDtedElevationDatabase.h.

Constructor & Destructor Documentation

◆ ossimDtedElevationDatabase() [1/2]

ossimDtedElevationDatabase::ossimDtedElevationDatabase ( )

Definition at line 14 of file ossimDtedElevationDatabase.cpp.

Referenced by dup().

    : ossimElevationCellDatabase(),
      m_extension(""),
      m_upcase(false),
      m_lastHandler(0),
      m_mutex()
 {
 }

◆ ossimDtedElevationDatabase() [2/2]

ossimDtedElevationDatabase::ossimDtedElevationDatabase ( const ossimDtedElevationDatabase & rhs )

Definition at line 23 of file ossimDtedElevationDatabase.cpp.

    : ossimElevationCellDatabase(rhs),
      m_extension(rhs.m_extension),
      m_upcase(rhs.m_upcase),
      m_lastHandler(0), // Do not copy this to get a unique handler for thread.
      m_mutex()
 {
 }

◆ ~ossimDtedElevationDatabase()

ossimDtedElevationDatabase::~ossimDtedElevationDatabase ( )

virtual

Definition at line 32 of file ossimDtedElevationDatabase.cpp.

33 {

34 }

Member Function Documentation

◆ createCell()

ossimRefPtr< ossimElevCellHandler > ossimDtedElevationDatabase::createCell ( const ossimGpt & gpt )

protectedvirtual

Reimplemented from ossimElevationCellDatabase.

Definition at line 192 of file ossimDtedElevationDatabase.cpp.

References createFullPath(), ossimFilename::exists(), ossimRefPtr< T >::get(), ossimErrorStatusInterface::getErrorStatus(), and ossimElevationCellDatabase::m_memoryMapCellsFlag.

 {
    ossimRefPtr<ossimElevCellHandler> result = 0;
    ossimFilename f;
    createFullPath(f, gpt);
    if(f.exists())
    {
       ossimRefPtr<ossimDtedHandler> h = new ossimDtedHandler(f, m_memoryMapCellsFlag);
       if (!(h->getErrorStatus()))
       {
          result = h.get();
       }
    }
    return result;
 }

◆ createFullPath()

void ossimDtedElevationDatabase::createFullPath	(	ossimFilename &	file,
		const ossimGpt &	gpt
	)		const

inlineprotected

Definition at line 71 of file ossimDtedElevationDatabase.h.

References ossimFilename::dirCat().

Referenced by createCell().

    {
       ossimFilename relativeFile;
       createRelativePath(relativeFile, gpt);
       file = ossimFilename(m_connectionString).dirCat(relativeFile);
    }

◆ createId()

virtual ossim_uint64 ossimDtedElevationDatabase::createId ( const ossimGpt & pt ) const

inlinevirtual

Reimplemented from ossimElevationCellDatabase.

Definition at line 47 of file ossimDtedElevationDatabase.h.

References ossimGpt::latd(), ossimGpt::lond(), ossim::wrap(), x, and y.

    {
       ossim_uint64 y = static_cast<ossim_uint64>(ossim::wrap(pt.latd(), -90.0, 90.0)+90.0);
       ossim_uint64 x = static_cast<ossim_uint64>(ossim::wrap(pt.lond(),-180.0,180.0)+180.0);
       // map the extreme edge to the same ID ax the 179 west cell and the same for the 89
       // degree north cell.
       //
       x = x==360?359:x;
       y = y==180?179:y;
       // dted databases are 1x1 degree cells and we will use a world 
       // grid for id generation.
       //
       return (y*360+x);
    }

◆ createRelativePath()

void ossimDtedElevationDatabase::createRelativePath	(	ossimFilename &	file,
		const ossimGpt &	gpt
	)		const

protected

Definition at line 152 of file ossimDtedElevationDatabase.cpp.

References abs, ossimString::c_str(), ossimFilename::dirCat(), ossimGpt::latd(), ossimGpt::lond(), m_extension, and m_upcase.

 {
    ossimFilename lon, lat;
    int ilon = static_cast<int>(floor(gpt.lond()));
    
    if (ilon < 0)
    {
       lon = m_upcase?"W":"w";
    }
    else
    {
       lon = m_upcase?"E":"e";
    }
    
    ilon = abs(ilon);
    std::ostringstream  s1;
    s1 << std::setfill('0') << std::setw(3)<< ilon;
    
    lon += s1.str().c_str();//ossimString::toString(ilon);
    
    int ilat =  static_cast<int>(floor(gpt.latd()));
    if (ilat < 0)
    {
       lat += m_upcase?"S":"s";
    }
    else
    {
       lat += m_upcase?"N":"n";
    }
    
    ilat = abs(ilat);
    std::ostringstream  s2;
    
    s2<< std::setfill('0') << std::setw(2)<< ilat;
    
    lat += s2.str().c_str();
    
    file = lon.dirCat(lat+m_extension);
 }

◆ dup()

ossimObject * ossimDtedElevationDatabase::dup ( ) const

virtual

Implements ossimElevSource.

Definition at line 36 of file ossimDtedElevationDatabase.cpp.

References ossimDtedElevationDatabase().

 {
    ossimDtedElevationDatabase* duped = new ossimDtedElevationDatabase(*this);
    return duped;
 }

◆ getAccuracyInfo()

bool ossimDtedElevationDatabase::getAccuracyInfo	(	ossimElevationAccuracyInfo &	info,
		const ossimGpt &	gpt
	)		const

virtual

Reimplemented from ossimElevationDatabase.

Definition at line 136 of file ossimDtedElevationDatabase.cpp.

References ossimElevCellHandler::getAccuracyInfo(), ossimElevationCellDatabase::getOrCreateCellHandler(), m_mutex, and ossimRefPtr< T >::valid().

 {
    bool result = false;
    
    m_mutex.lock();
    ossimDtedElevationDatabase* thisPtr = const_cast<ossimDtedElevationDatabase*>(this);
    ossimRefPtr<ossimElevCellHandler> tempHandler = thisPtr->getOrCreateCellHandler(gpt);
    m_mutex.unlock();
 
    if(tempHandler.valid())
    {
       result = tempHandler->getAccuracyInfo(info, gpt);
    }
   return result;
 }

◆ getHeightAboveEllipsoid()

double ossimDtedElevationDatabase::getHeightAboveEllipsoid ( const ossimGpt & gpt )

virtual

Reimplemented from ossimElevSource.

Definition at line 62 of file ossimDtedElevationDatabase.cpp.

References getHeightAboveMSL(), ossimElevationDatabase::getOffsetFromEllipsoid(), and ossim::nan().

 {
    double h = getHeightAboveMSL(gpt);
    if(h != ossim::nan())
    {
       double offset = getOffsetFromEllipsoid(gpt);
       
       h += offset;
    }
    
    return h;
 }

◆ getHeightAboveMSL()

double ossimDtedElevationDatabase::getHeightAboveMSL ( const ossimGpt & )

virtual

Height access methods:

Implements ossimElevSource.

Definition at line 42 of file ossimDtedElevationDatabase.cpp.

References ossimElevSource::getHeightAboveMSL(), ossimElevationCellDatabase::getOrCreateCellHandler(), ossimSource::isSourceEnabled(), m_lastHandler, m_mutex, ossim::nan(), ossimElevCellHandler::pointHasCoverage(), and ossimRefPtr< T >::valid().

Referenced by getHeightAboveEllipsoid().

 {
    if(!isSourceEnabled())
       return ossim::nan();
    std::lock_guard<std::mutex> lock(m_mutex);
    double result = ossim::nan();
    if(m_lastHandler.valid() && m_lastHandler->pointHasCoverage(gpt))
    {
       result = m_lastHandler->getHeightAboveMSL(gpt);
    }
    else
    {
       m_lastHandler = getOrCreateCellHandler(gpt);
       if(m_lastHandler.valid())
          result = m_lastHandler->getHeightAboveMSL(gpt);
    }
 
    return result;
 }

◆ inititializeExtension()

bool ossimDtedElevationDatabase::inititializeExtension ( const ossimFilename & dir )

protected

Scans directory and set m_extension to extension of first dted file found.

Parameters

dir	Directory to scan.

Returns: true on success, false on error.

Definition at line 293 of file ossimDtedElevationDatabase.cpp.

References ossimString::c_str(), ossimString::empty(), ossimFilename::ext(), ossimFilename::file(), ossimDirectory::getFirst(), ossimFilename::isDir(), ossimString::match(), ossimDirectory::open(), ossimDtedHandler::open(), ossimDirectory::OSSIM_DIR_DIRS, ossimDirectory::OSSIM_DIR_FILES, and ossimString::size().

 {
    ossim_uint32 count = 0;
    ossim_uint32 maxCount = 10;
    ossimDirectory od;
    bool result = od.open(dir);
    if(result)
    {
       result = false;
       ossimFilename f;
       // Get the first directory.
       od.getFirst(f, ossimDirectory::OSSIM_DIR_DIRS);
       
       do
       {
          ++count;
          // Must be a directory.
          if (f.isDir())
          {
             // Discard any full path.
             ossimFilename fileOnly = f.file();
             
             // Downcase it. Note have sites with upper case. (drb)
             // fileOnly.downcase();
 
             //---
             // Longitude subdir check:
             // Must start with 'e', 'E', 'w' or 'W'.
             //---
             bool foundCell = ( ( (fileOnly.c_str()[0] == 'e') ||
                                  (fileOnly.c_str()[0] == 'w') ||
                                  (fileOnly.c_str()[0] == 'E') ||
                                  (fileOnly.c_str()[0] == 'W') ) &&
                                (fileOnly.size() == 4));
             if(foundCell)
             {
                ossim_uint32 maxCount2 = 10;
                ossim_uint32 count2 = 0;
                ossimDirectory d2;
 
                // Open the longitude subdir:
                if(d2.open(f))
                {
                   d2.getFirst(f, ossimDirectory::OSSIM_DIR_FILES);
                   do
                   {
                      // The DTED directory may be polluted with cell statistics files and other
                      // non-DEM items. Skip if not of the expected extension (OLK 10/2017):
                      if (f.ext().match("[dD][tT][0-9]").empty())
                         continue;
 
                      ossimRefPtr<ossimDtedHandler> dtedHandler = new ossimDtedHandler();
                      if(dtedHandler->open(f, false))
                      {
                         if(traceDebug())
                         {
                            ossimNotify(ossimNotifyLevel_DEBUG)
                               << "ossimDtedElevationDatabase::open: Found dted file " << f << "\n";
                         }
                         result = true;
                         m_extension = "."+f.ext();
                         m_connectionString = dir;
                         m_meanSpacing = dtedHandler->getMeanSpacingMeters();
                      }
                      dtedHandler->close();
                      dtedHandler = 0;
                      ++count2;
                   } while(!result&&d2.getNext(f)&&(count2 < maxCount2));
                }
             }
          }
       } while(!result&&(od.getNext(f))&&(count < maxCount));
    }
 
    return result;
    
 } // End: ossimDtedElevationDatabase::inititializeExtension( dir )

◆ loadState()

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

virtual

Method to the load (recreate) the state of the object from a keyword list. Return true if ok or false on error.

Reimplemented from ossimElevationCellDatabase.

Definition at line 208 of file ossimDtedElevationDatabase.cpp.

References ossimString::empty(), ossimFilename::exists(), ossimKeywordlist::findKey(), ossimPreferences::instance(), ossimElevationCellDatabase::loadState(), ossimElevationDatabase::m_connectionString, m_extension, ossimNotify(), ossimNotifyLevel_WARN, ossimPreferences::preferencesKWL(), ossimString::size(), and ossimString::string().

 {
    bool result = ossimElevationCellDatabase::loadState(kwl, prefix);
    if(result)
    {
       if(!m_connectionString.empty()&&ossimFilename(m_connectionString).exists())
       {
          // Look for "extension" keyword.
          std::string pref = (prefix?prefix:"");
          std::string key = "extension";
          ossimString val = ossimPreferences::instance()->preferencesKWL().findKey( pref, key );
          if ( val.size() )
          {
             if ( val.string()[0] != '.' )
             {
                m_extension = ".";
                m_extension += val;
                
                ossimNotify(ossimNotifyLevel_WARN)
                   << "\nossimDtedElevationDatabase::loadState: WARNING\n"
                   << "Key value for \"extension\" does not start with a dot!\n"
                   << "Consider changing \"" << val << "\" to \"" << m_extension << "\"\n"
                   << std::endl;   
             }
             else
             {
                m_extension = val;
             }
          }
          else if ( traceDebug() )
          {
             ossimNotify(ossimNotifyLevel_DEBUG)
                << "\nossimDtedElevationDatabase::loadState: NOTICE\n"
                << "Key lookup for \"extension\" failed!\n"
                << "Can be set in ossim preferences.  Example:\n"
                << pref << key << ": .dt2\n\n";
          }
 
          key = "upcase";
          val = ossimPreferences::instance()->preferencesKWL().findKey( pref, key );
          if ( val.size() )
          {
             m_upcase = val.toBool();
          }
          else if ( traceDebug() )
          {
             ossimNotify(ossimNotifyLevel_DEBUG)
                << "\nossimDtedElevationDatabase::loadState: NOTICE\n"
                << "Key lookup for \"upcase\" failed!\n"
                << "Can be set in ossim preferences.  Example:\n"
                << pref << key << ": false\n\n";
          }
          
 
          result = open(m_connectionString);
       }
       else
       {
          // can't open the connection because it does not exists or empty
          result = false;
       }
    }
    
    return result;
 }

◆ open()

bool ossimDtedElevationDatabase::open ( const ossimString & connectionString )

virtual

Open a connection to a database.

In most cases this will be a pointer to a directory like in a Dted directory reader.

Implements ossimElevationDatabase.

Definition at line 74 of file ossimDtedElevationDatabase.cpp.

References openDtedDirectory().

 {
    bool result = false;
    ossimFilename file = ossimFilename(connectionString);
    
    result = openDtedDirectory(file);
 
    return result;
 }

◆ openDtedDirectory()

bool ossimDtedElevationDatabase::openDtedDirectory ( const ossimFilename & dir )

protected

Definition at line 84 of file ossimDtedElevationDatabase.cpp.

Referenced by open().

 {
    if(traceDebug())
    {
       ossimNotify(ossimNotifyLevel_DEBUG)
          << "ossimDtedElevationDatabase::open entered ...\n"
          << "dir: " << dir << "\n";
    }
    
    bool result = dir.isDir();
    if(result)
    {
       if ( m_extension.size() == 0 )
       {
          //---
          // This sets extension by doing a directory scan for files with "dt*".
          // Use "extension" key in preferences to avoid this.  Example:
          // elevation_manager.elevation_source0.extension: dt2.
          //---
          result = inititializeExtension( dir );
          if ( !result && traceDebug() )
          {
             ossimNotify(ossimNotifyLevel_DEBUG)
                << "ossimDtedElevationDatabase::open: WARNING "
                << "Scan for dted extension failed!\n"
                << "Can be set in ossim preferences.  Example:\n"
                << "elevation_manager.elevation_source0.extension: .dt2\n";
          }
       }
       
       // Set the geoid:
       if( !m_geoid.valid() )
       {
          m_geoid = ossimGeoidManager::instance()->findGeoidByShortName("geoid1996", false);
          if(!m_geoid.valid()&&traceDebug())
          {
             ossimNotify(ossimNotifyLevel_DEBUG)
                << "ossimDtedElevationDatabase::open: WARNING "
                << "Unable to load goeid grid 1996 for DTED database\n";
          }
       }
 
    }
 
    if(traceDebug())
    {
       ossimNotify(ossimNotifyLevel_DEBUG)
          << "ossimDtedElevationDatabase::open result:" << (result?"true":"false") << "\n";
    }
    return result;
 }

◆ pointHasCoverage()

virtual bool ossimDtedElevationDatabase::pointHasCoverage ( const ossimGpt & ) const

inlinevirtual

METHOD: pointHasCoverage(gpt) Returns TRUE if coverage exists over gpt:

Implements ossimElevSource.

Definition at line 36 of file ossimDtedElevationDatabase.h.

References ossimFilename::exists().

    {
       ossimFilename filename;
       createFullPath(filename, gpt);
       
       return filename.exists();
    }

◆ print()

std::ostream & ossimDtedElevationDatabase::print ( std::ostream & out ) const

virtual

Outputs theErrorStatus as an ossimErrorCode and an ossimString.

Returns: std::ostream&

Note: Derived classes should only have to implement a virtual print, not an operator<< funtion as it's implemented here.

Reimplemented from ossimElevationCellDatabase.

Definition at line 284 of file ossimDtedElevationDatabase.cpp.

References saveState().

 {
    ossimKeywordlist kwl;
    saveState(kwl);
    out << "\nossimDtedElevationDatabase @ "<< (ossim_uint64) this << "\n"
          << kwl <<ends;
    return out;
 }

◆ saveState()

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

virtual

Method to save the state of the object to a keyword list. Return true if ok or false on error.

Reimplemented from ossimElevationCellDatabase.

Definition at line 274 of file ossimDtedElevationDatabase.cpp.

References ossimKeywordlist::add(), m_extension, m_upcase, and ossimElevationCellDatabase::saveState().

Referenced by print().

 {
    kwl.add(prefix, "extension", m_extension, true);
    kwl.add(prefix, "upcase", m_upcase, true);
    
    bool result = ossimElevationCellDatabase::saveState(kwl, prefix);
    
    return result;
 }