makVrv::DtHeightMapManager Class Reference

A class to manage automatic periodic updating of a height map generated from the database dynamically.

Public Member Functions
virtual	~DtHeightMapManager ()
virtual void	setupHeightMap (void)
virtual void	setHeightMapResolution (float resolution)
virtual float	heightMapResolution () const
virtual void	setHeightMapTextureSize (int pixels)
virtual int	heightMapTextureSize () const
virtual bool	updateHeightCamera (unsigned int frameNum, const osg::Vec3d &currentPosition, bool isGeocentric)
virtual void	setHeightCameraAttachment (bool enabled)
virtual bool	heightCameraAttached () const
virtual const osg::Matrix &	heightMapMatrix () const
virtual const osg::ref_ptr < osg::Texture2D >	heightMapTexture () const
virtual void	slot_terrainDataChanged (DtTerrainPatchObject &tpo)
virtual void	slot_wireframeModeChanged ()
virtual void	slot_coordinateSystemChanged ()
virtual osg::Camera *	heightCamera ()
virtual void	syncHeightMapToGpu (const osg::State *state, const osg::Camera *camera)
virtual void	postDrawFBOCallback (osg::RenderInfo &renderInfo)

Protected Member Functions
	DtHeightMapManager (DtDe &de, osg::View *view)
virtual void	cleanup ()
virtual void	updateHeightMapMatrix ()
virtual osg::Matrixd	oglRevDepthOrtho (double left, double right, double bottom, double top, double zNear, double zFar)
virtual void	computeBasis (const osg::Vec3d &inGeocentricPos, osg::Matrixd &rotOut)

Protected Attributes
osg::Vec3d	myLastHeightReferencePos
osg::Matrixd	myHeightReferenceBasis
osg::Vec3d	myLastHeightUpdatePos
unsigned int	myHeightUpdateFrame
bool	myHeightCameraAttached
bool	myHeightMapCameraUpdateReady
bool	myForceUpdate
float	myResolution
bool	mySavedPerfOverlayOn
double	myLastUpdateTime
bool	myShadingRateIsSupported
osg::ref_ptr< osg::Texture2D >	myHeightMap
osg::ref_ptr< osg::Texture2D >	myDepthTexture
osg::Matrix	myHeightMapMatrix
int	myHeightMapDimension
osg::ref_ptr< osg::Camera >	myHeightCamera
DtDe &	myDe
DtSignalConnectionManager	myConnections
osg::View *	myOsgView
DtCoordinateSystem *	myCoordinateSystem = nullptr

Private Member Functions
	DtHeightMapManager ()=delete
	DtHeightMapManager (const DtHeightMapManager &other)=delete
DtHeightMapManager &	operator= (const DtHeightMapManager &other)=delete

Friends
class	DtHeightMapManagerCreator

Constructor & Destructor Documentation

virtual makVrv::DtHeightMapManager::~DtHeightMapManager ( )

virtual

destructor

makVrv::DtHeightMapManager::DtHeightMapManager ( DtDe &  de, osg::View *  view  )

protected

constructor

makVrv::DtHeightMapManager::DtHeightMapManager ( )

privatedelete

Default Constructor not implemented.

makVrv::DtHeightMapManager::DtHeightMapManager ( const DtHeightMapManager &  other )

privatedelete

Copy Constructor not implemented – Copy Not Allowed.

Member Function Documentation

DtHeightMapManager& makVrv::DtHeightMapManager::operator= ( const DtHeightMapManager &  other )

privatedelete

Assignment Operator Not implemented – Assignment Not Allowed.

virtual void makVrv::DtHeightMapManager::setupHeightMap ( void  )

virtual

Sets up the height map's resources.

virtual void makVrv::DtHeightMapManager::setHeightMapResolution ( float  resolution )

virtual

Set the height map resolution in meters per texel.

virtual float makVrv::DtHeightMapManager::heightMapResolution ( ) const

virtual

Gets the meters represented by one texel of the height map.

virtual void makVrv::DtHeightMapManager::setHeightMapTextureSize ( int  pixels )

virtual

Set the texture size length and width. The pixel value will be.

virtual int makVrv::DtHeightMapManager::heightMapTextureSize ( ) const

virtual

Get the texture size length and width.

virtual bool makVrv::DtHeightMapManager::updateHeightCamera ( unsigned int  frameNum, const osg::Vec3d &  currentPosition, bool  isGeocentric  )

virtual

Updates the height map as needed; call once per frame. Returns true if there is a new height map ready.

virtual void makVrv::DtHeightMapManager::setHeightCameraAttachment ( bool  enabled )

virtual

Attaches or detaches the height map camera from the scene graph.

virtual bool makVrv::DtHeightMapManager::heightCameraAttached ( ) const

virtual

Returns the height camera attatched state.

virtual const osg::Matrix& makVrv::DtHeightMapManager::heightMapMatrix ( ) const

virtual

Retrieve the matrix to transform world coordinate to texture coords.

virtual const osg::ref_ptr<osg::Texture2D> makVrv::DtHeightMapManager::heightMapTexture ( ) const

virtual

Retrieve the height map itself.

virtual void makVrv::DtHeightMapManager::slot_terrainDataChanged ( DtTerrainPatchObject &  tpo )

virtual

Handles the terrain data changed signal.

virtual void makVrv::DtHeightMapManager::slot_wireframeModeChanged ( )

virtual

Handles the wireframe mode changed signal.

virtual void makVrv::DtHeightMapManager::slot_coordinateSystemChanged ( )

virtual

slot for when the coordinate system changes

virtual osg::Camera* makVrv::DtHeightMapManager::heightCamera ( )

virtual

get the height camera being used by this height map manager

virtual void makVrv::DtHeightMapManager::syncHeightMapToGpu ( const osg::State *  state, const osg::Camera *  camera  )

virtual

Called from DtDrawableUpdateHeightMapJob to sync the height map to the GPU.

virtual void makVrv::DtHeightMapManager::postDrawFBOCallback ( osg::RenderInfo &  renderInfo )

virtual

Called from DtHeightMapPostDrawFBOCallback for post draw.

virtual void makVrv::DtHeightMapManager::cleanup ( )

protectedvirtual

clean up this manager, called by the destuctor and the release gl objects for the drawable.

virtual void makVrv::DtHeightMapManager::updateHeightMapMatrix ( )

protectedvirtual

Helper function for updating the height map matrix.

virtual osg::Matrixd makVrv::DtHeightMapManager::oglRevDepthOrtho ( double  left, double  right, double  bottom, double  top, double  zNear, double  zFar  )

protectedvirtual

get the reverse depth buffer setup for an orthographic camera. used when reverse z is turned on.

virtual void makVrv::DtHeightMapManager::computeBasis ( const osg::Vec3d &  inGeocentricPos, osg::Matrixd &  rotOut  )

protectedvirtual

Computes a round earth basis rotation matrix for the given geocentric position.

Parameters

inGeocentricPos	The geocentric reference position.
rotOut	The computed basis rotation transform.

Friends And Related Function Documentation

friend class DtHeightMapManagerCreator

friend

Member Data Documentation

osg::Vec3d makVrv::DtHeightMapManager::myLastHeightReferencePos

protected

osg::Matrixd makVrv::DtHeightMapManager::myHeightReferenceBasis

protected

osg::Vec3d makVrv::DtHeightMapManager::myLastHeightUpdatePos

protected

unsigned int makVrv::DtHeightMapManager::myHeightUpdateFrame

protected

bool makVrv::DtHeightMapManager::myHeightCameraAttached

protected

bool makVrv::DtHeightMapManager::myHeightMapCameraUpdateReady

protected

bool makVrv::DtHeightMapManager::myForceUpdate

protected

float makVrv::DtHeightMapManager::myResolution

protected

bool makVrv::DtHeightMapManager::mySavedPerfOverlayOn

protected

double makVrv::DtHeightMapManager::myLastUpdateTime

protected

bool makVrv::DtHeightMapManager::myShadingRateIsSupported

protected

osg::ref_ptr<osg::Texture2D> makVrv::DtHeightMapManager::myHeightMap

protected

osg::ref_ptr<osg::Texture2D> makVrv::DtHeightMapManager::myDepthTexture

protected

osg::Matrix makVrv::DtHeightMapManager::myHeightMapMatrix

protected

int makVrv::DtHeightMapManager::myHeightMapDimension

protected

osg::ref_ptr<osg::Camera> makVrv::DtHeightMapManager::myHeightCamera

protected

DtDe& makVrv::DtHeightMapManager::myDe

protected

DtSignalConnectionManager makVrv::DtHeightMapManager::myConnections

protected

osg::View* makVrv::DtHeightMapManager::myOsgView

protected

DtCoordinateSystem* makVrv::DtHeightMapManager::myCoordinateSystem = nullptr

protected

local clone of the system wide coordinate system. for thread safety.

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

• /data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-0-branch/include/vrvOsg/DtHeightMapManager.h