Filter class for computing the slope image of the input image connection. More...

#include <ossimSlopeFilter.h>

Inheritance diagram for ossimSlopeFilter:

Public Types
enum	SlopeType { RADIANS, DEGREES, RATIO, NORMALIZED }
	Specifies how the slope quantity is represented. More...

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
	ossimSlopeFilter ()

	ossimSlopeFilter (ossimImageSource *inputSource)

virtual void	initialize ()

virtual ossimString	getLongName () const

virtual ossimString	getShortName () const

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

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

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

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

virtual void	setProperty (ossimRefPtr< ossimProperty > property)

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

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

void	setSlopeType (SlopeType t)

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

	ossimImageSourceFilter (ossimImageSource *inputSource)

	ossimImageSourceFilter (ossimObject owner, ossimImageSource inputSource)

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

virtual ossim_uint32	getNumberOfInputBands () const

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

virtual void	connectInputEvent (ossimConnectionEvent &event)

virtual void	disconnectInputEvent (ossimConnectionEvent &event)

virtual void	propertyEvent (ossimPropertyEvent &event)

virtual void	refreshEvent (ossimRefreshEvent &event)

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

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

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

virtual ossim_uint32	getNumberOfOutputBands () const
	Returns the number of bands in a tile returned from this TileSource. 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 ossimIrect	getBoundingRect (ossim_uint32 resLevel=0) const
	This will return the bounding rect of the source. 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 ossimRefPtr< ossimImageGeometry >	getImageGeometry ()
	Returns the image geometry object associated with this tile source or NULL if not defined. More...

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

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

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

virtual bool	isIndexedData () const

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

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

virtual	~ossimSource ()

virtual bool	isSourceEnabled () const

virtual void	enableSource ()

virtual void	disableSource ()

virtual bool	getEnableFlag () const

virtual void	setEnableFlag (bool flag)

virtual bool	isInitialized () const

virtual void	setInitializedFlag (bool flag)

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

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

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

virtual	~ossimConnectableObject ()

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

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

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

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

virtual void	setDescription (const ossimString &description)

virtual ossimString	getDescription () const

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

virtual bool	getInputListIsFixedFlag () const

virtual bool	getOutputListIsFixedFlag () const

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

const ConnectableObjectList &	getInputList () const

const ConnectableObjectList &	getOutputList () const

ConnectableObjectList &	getInputList ()

ConnectableObjectList &	getOutputList ()

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

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

virtual void	propagateEventToOutputs (ossimEvent &event)

virtual void	propagateEventToInputs (ossimEvent &event)

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

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

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

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

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

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

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

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

Public Member Functions inherited from ossimObject
	ossimObject ()

virtual	~ossimObject ()

virtual ossimObject *	dup () const

virtual ossimString	getClassName () const

virtual RTTItypeid	getType () const

virtual bool	canCastTo (ossimObject *obj) const

virtual bool	canCastTo (const RTTItypeid &id) const

virtual bool	canCastTo (const ossimString &parentClassName) const

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

Public Member Functions inherited from ossimReferenced
	ossimReferenced ()

	ossimReferenced (const ossimReferenced &)

ossimReferenced &	operator= (const ossimReferenced &)

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

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

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

int	referenceCount () const

Public Member Functions inherited from ossimListenerManager
	ossimListenerManager ()

virtual	~ossimListenerManager ()

virtual void	fireEvent (ossimEvent &event)

virtual bool	addListener (ossimListener *listener)

virtual bool	removeListener (ossimListener *listener)

virtual bool	findListener (ossimListener *listener)

Public Member Functions inherited from ossimPropertyInterface
	ossimPropertyInterface ()

virtual	~ossimPropertyInterface ()

virtual ossimString	getPropertyValueAsString (const ossimString &name) const

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

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

Public Member Functions inherited from ossimErrorStatusInterface
	ossimErrorStatusInterface ()

virtual	~ossimErrorStatusInterface ()

virtual ossimErrorCode	getErrorStatus () const

virtual ossimString	getErrorStatusString () const

virtual void	setErrorStatus (ossimErrorCode error_status) const

virtual void	setErrorStatus () const

virtual void	clearErrorStatus () const

bool	hasError () const

Public Member Functions inherited from ossimConnectableObjectListener
	ossimConnectableObjectListener ()

virtual	~ossimConnectableObjectListener ()

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

virtual void	objectDestructingEvent (ossimObjectDestructingEvent &)

virtual void	connectionEvent (ossimConnectionEvent &)

virtual void	disconnectOutputEvent (ossimConnectionEvent &)

virtual void	connectOutputEvent (ossimConnectionEvent &)

virtual void	addObjectEvent (ossimContainerEvent &)

virtual void	removeObjectEvent (ossimContainerEvent &)

virtual void	containerEvent (ossimContainerEvent &)

Public Member Functions inherited from ossimListener
	ossimListener ()

virtual	~ossimListener ()

void	enableListener ()

void	disableListener ()

void	setListenerEnableFlag (bool flag)

bool	isListenerEnabled () const

bool	getListenerEnableFlag () const

Protected Member Functions
virtual	~ossimSlopeFilter ()

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)

Static Protected Member Functions
static ossimString	getSlopeTypeString (SlopeType t)

Protected Attributes
ossimRefPtr< ossimImageToPlaneNormalFilter >	m_normals

SlopeType	m_slopeType

Protected Attributes inherited from ossimImageSourceFilter
ossimImageSource *	theInputConnection

Protected Attributes inherited from ossimSource
bool	theEnableFlag

bool	theInitializedFlag

Protected Attributes inherited from ossimConnectableObject
ossimId	theId

ossimString	theDescription

ossimObject *	theOwner

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

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

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

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

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

bool	theEnabledFlag

std::list< ossimListener * >	theDelayedAdd

std::list< ossimListener * >	theDelayedRemove

bool	theFireEventFlag

Protected Attributes inherited from ossimErrorStatusInterface
ossimErrorCode	theErrorStatus

Protected Attributes inherited from ossimListener
bool	theListenerEnableFlag

Detailed Description

Filter class for computing the slope image of the input image connection.

The slope dP/dR is defined as the maximum change in pixel value for a differential change in ground position. This filter would typically be applied to elevation data (represented as an image), where dP is the change in height when walking some distance dR either straight uphill or downhill. Numerically , this quantity is computed from the dot product of the normal vector with the local vertical.

The output is a floating point single-band image. The input should be a single-band, floating point image. The slope quantity can be represented as an angle from local vertical, i.e., the arccos(dP/dR) (in radians, degrees, or normalized) or as the simple ratio dP/dR.

Definition at line 26 of file ossimSlopeFilter.h.

Member Enumeration Documentation

◆ SlopeType

enum ossimSlopeFilter::SlopeType

Specifies how the slope quantity is represented.

Enumerator
RADIANS
DEGREES
RATIO
NORMALIZED

Definition at line 30 of file ossimSlopeFilter.h.

    {
       RADIANS,   // Angle from local vertical in radians
       DEGREES,   // Angle from local vertical in degrees (default)
       RATIO,     // dH/dR ratio of change in height to change in horizontal ground distance
       NORMALIZED // Angle from local vertical normalized so that 0.0 = 0 deg, 1.0 = 90 deg)
    };

Constructor & Destructor Documentation

◆ ossimSlopeFilter() [1/2]

ossimSlopeFilter::ossimSlopeFilter ( )

Definition at line 19 of file ossimSlopeFilter.cpp.

    :  ossimImageSourceFilter(),
       m_slopeType (DEGREES)
 {
 }

◆ ossimSlopeFilter() [2/2]

ossimSlopeFilter::ossimSlopeFilter ( ossimImageSource * inputSource )

Definition at line 25 of file ossimSlopeFilter.cpp.

    :
    ossimImageSourceFilter(inputSource),
    m_slopeType (DEGREES)
 {
 }

◆ ~ossimSlopeFilter()

ossimSlopeFilter::~ossimSlopeFilter ( )

protectedvirtual

Definition at line 32 of file ossimSlopeFilter.cpp.

References m_normals.

 {
    m_normals = 0;
 }

Member Function Documentation

◆ getLongName()

ossimString ossimSlopeFilter::getLongName ( ) const

virtual

Reimplemented from ossimObject.

Definition at line 199 of file ossimSlopeFilter.cpp.

 {
    return ossimString("Slope Filter, Computes the change in pixel value in x, Y direction as a "
          "slope quantity. Assumes that the input source represents elevation in meters.");
 }

◆ getOutputScalarType()

virtual ossimScalarType ossimSlopeFilter::getOutputScalarType ( ) const

inlinevirtual

Returns the output pixel type of the tile source.

This override the base class since it simply returns it's input scalar type which is not correct with this object.

Reimplemented from ossimImageSource.

Definition at line 53 of file ossimSlopeFilter.h.

References OSSIM_FLOAT32.

53 { return OSSIM_FLOAT32; }

OSSIM_FLOAT32

32 bit floating point

Definition: ossimConstants.h:289

◆ getProperty()

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

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 126 of file ossimSlopeFilter.cpp.

References DEGREES, ossimImageSourceFilter::getProperty(), getSlopeTypeString(), m_slopeType, NORMALIZED, RADIANS, RATIO, and SLOPE_TYPE_KW.

 {
    if(name == SLOPE_TYPE_KW)
    {
       ossimString propValue;
       switch (m_slopeType)
       {
       case RADIANS:
          propValue = getSlopeTypeString(RADIANS);
          break;
       case RATIO:
          propValue = getSlopeTypeString(RATIO);
          break;
       case NORMALIZED:
          propValue = getSlopeTypeString(NORMALIZED);
       default:
          propValue = getSlopeTypeString(DEGREES);
       }
 
       vector<ossimString> list;
       list.push_back(getSlopeTypeString(RADIANS));
       list.push_back(getSlopeTypeString(DEGREES));
       list.push_back(getSlopeTypeString(RATIO));
       list.push_back(getSlopeTypeString(NORMALIZED));
       
       return new ossimStringProperty(SLOPE_TYPE_KW, propValue, false, list);
    }
 
    return ossimImageSourceFilter::getProperty(name);
 }

◆ getPropertyNames()

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

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 157 of file ossimSlopeFilter.cpp.

References ossimImageSourceFilter::getPropertyNames(), and SLOPE_TYPE_KW.

 {
    ossimImageSourceFilter::getPropertyNames(propertyNames);
    propertyNames.push_back(SLOPE_TYPE_KW);
 }

◆ getShortName()

ossimString ossimSlopeFilter::getShortName ( ) const

virtual

Reimplemented from ossimObject.

Definition at line 205 of file ossimSlopeFilter.cpp.

 {
    return ossimString("Slope Filter");
 }

◆ getSlopeTypeString()

ossimString ossimSlopeFilter::getSlopeTypeString ( SlopeType t )

staticprotected

Definition at line 186 of file ossimSlopeFilter.cpp.

References DEGREES, NORMALIZED, RADIANS, and RATIO.

Referenced by getProperty(), and saveState().

 {
    if (t == RADIANS)
       return "RADIANS";
    if (t == DEGREES)
       return "DEGREES";
    if (t == RATIO)
       return "RATIO";
    if (t == NORMALIZED)
       return "NORMALIZED";
    return "";
 }

◆ getTile()

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

virtual

Returns: the requested region of interest

Reimplemented from ossimImageSource.

Definition at line 37 of file ossimSlopeFilter.cpp.

References ossim::acosd(), ossimImageData::getFloatBuf(), ossimImageData::getNullPix(), ossimImageData::getPix(), ossimImageData::getSizePerBand(), ossimImageToPlaneNormalFilter::getTile(), ossimImageSource::getTile(), initialize(), ossimImageData::initialize(), ossimSource::isSourceEnabled(), m_normals, M_PI, m_slopeType, NORMALIZED, OSSIM_FLOAT32, RADIANS, RATIO, ossimImageData::setImageRectangle(), ossimImageSourceFilter::theInputConnection, ossimRefPtr< T >::valid(), and ossimImageData::validate().

 {
    if(!theInputConnection)
       return ossimRefPtr<ossimImageData>();
 
    if ( !isSourceEnabled() )
       return theInputConnection->getTile(rect, rLevel);
 
    if (!m_normals.valid())
       initialize();
 
    ossimRefPtr<ossimImageData> normals = m_normals->getTile(rect, rLevel);
    if (!normals.valid())
       return ossimRefPtr<ossimImageData>();
 
    ossimRefPtr<ossimImageData> outputTile = new ossimImageData(this, OSSIM_FLOAT32, 1);
    outputTile->setImageRectangle(rect);
    outputTile->initialize();
    ossim_float32* output_buf = outputTile->getFloatBuf();
    ossim_float32 null_output = (ossim_float32) outputTile->getNullPix(0);
 
    double z, theta;
    double null_input = normals->getNullPix(2);
    ossim_uint32 num_pix = normals->getSizePerBand();
    for (ossim_uint32 i=0; i<num_pix; ++i)
    {
       z = normals->getPix(i, 2);
       if (z == null_input)
       {
          theta = null_output;
       }
       else
       {
          switch (m_slopeType)
          {
          case RADIANS:
             theta = acos(z);
             break;
          case RATIO:
             theta = z;
             break;
          case NORMALIZED:
             theta = fabs(acos(z)/M_PI);
             break;
          default: // Degrees
             theta = ossim::acosd(z);
          };
       }
       output_buf[i] = theta;
    }
 
    outputTile->validate();
    return outputTile;
 }

◆ initialize()

void ossimSlopeFilter::initialize ( )

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 92 of file ossimSlopeFilter.cpp.

References ossimImageToPlaneNormalFilter::initialize(), m_normals, ossimImageSourceFilter::theInputConnection, and ossimRefPtr< T >::valid().

Referenced by getTile(), and setProperty().

 {
    if (!m_normals.valid())
       m_normals = new ossimImageToPlaneNormalFilter(theInputConnection);
    m_normals->initialize();
 }

◆ loadState()

bool ossimSlopeFilter::loadState	(	const ossimKeywordlist &	kwl,
		const char *	prefix = `NULL`
	)

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 172 of file ossimSlopeFilter.cpp.

References ossimString::empty(), ossimKeywordlist::find(), ossimImageSourceFilter::loadState(), setProperty(), and SLOPE_TYPE_KW.

 {
    ossimImageSourceFilter::loadState(kwl, prefix);
 
    ossimString lookup = kwl.find(prefix, SLOPE_TYPE_KW);
    if (!lookup.empty())
    {
       ossimRefPtr<ossimProperty> prop =  new ossimStringProperty(SLOPE_TYPE_KW, lookup, false);
       setProperty(prop);
    }
 
    return true;
 }

◆ saveState()

bool ossimSlopeFilter::saveState	(	ossimKeywordlist &	kwl,
		const char *	prefix = `NULL`
	)		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 163 of file ossimSlopeFilter.cpp.

References ossimKeywordlist::add(), getSlopeTypeString(), m_slopeType, ossimImageSourceFilter::saveState(), and SLOPE_TYPE_KW.

 {
    ossimImageSourceFilter::saveState(kwl, prefix);
 
    kwl.add(prefix, SLOPE_TYPE_KW, getSlopeTypeString(m_slopeType).c_str(), true);
 
    return true;
 }

◆ setProperty()

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

virtual

Reimplemented from ossimImageSourceFilter.

Definition at line 99 of file ossimSlopeFilter.cpp.

References DEGREES, ossimProperty::getName(), initialize(), m_slopeType, NORMALIZED, RADIANS, RATIO, ossimImageSourceFilter::setProperty(), SLOPE_TYPE_KW, ossimString::upcase(), and ossimProperty::valueToString().

Referenced by loadState().

 {
    if(!property) return;
 
    if(property->getName() == SLOPE_TYPE_KW)
    {
       ossimString pts (property->valueToString());
       pts.upcase();
       if (pts.contains("RADIANS"))
          m_slopeType = RADIANS;
       else if (pts.contains("DEGREES"))
          m_slopeType = DEGREES;
       else if (pts.contains("RATIO"))
          m_slopeType = RATIO;
       else if (pts.contains("NORMALIZED"))
          m_slopeType = NORMALIZED;
       else
          return;
 
       initialize();
    }
    else
    {
       ossimImageSourceFilter::setProperty(property);
    }
 }

◆ setSlopeType()

void ossimSlopeFilter::setSlopeType ( SlopeType t )

inline

Definition at line 72 of file ossimSlopeFilter.h.

Referenced by ossimSlopeTool::initProcessingChain(), and ossimHlzTool::initProcessingChain().

72 { m_slopeType = t; }

ossimSlopeFilter::m_slopeType

SlopeType m_slopeType

Definition: ossimSlopeFilter.h:79

Member Data Documentation

◆ m_normals

ossimRefPtr<ossimImageToPlaneNormalFilter> ossimSlopeFilter::m_normals

protected

Definition at line 78 of file ossimSlopeFilter.h.

Referenced by getTile(), initialize(), and ~ossimSlopeFilter().

◆ m_slopeType

SlopeType ossimSlopeFilter::m_slopeType

protected

Definition at line 79 of file ossimSlopeFilter.h.

Referenced by getProperty(), getTile(), saveState(), and setProperty().

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

Public Types

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

◆ SlopeType

Constructor & Destructor Documentation

◆ ossimSlopeFilter() [1/2]

◆ ossimSlopeFilter() [2/2]

◆ ~ossimSlopeFilter()

Member Function Documentation

◆ getLongName()

◆ getOutputScalarType()

◆ getProperty()

◆ getPropertyNames()

◆ getShortName()

◆ getSlopeTypeString()

◆ getTile()

◆ initialize()

◆ loadState()

◆ saveState()

◆ setProperty()

◆ setSlopeType()

Member Data Documentation

◆ m_normals

◆ m_slopeType