RWMesh_TriangulationReader implementation creating Poly_Triangulation. More...

#include <RWGltf_TriangulationReader.hxx>

Inheritance diagram for RWGltf_TriangulationReader:

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Public Member Functions
	RWGltf_TriangulationReader ()
	Empty constructor.

bool	LoadStreamData (const occ::handle< RWMesh_TriangulationSource > &theSourceMesh, const occ::handle< Poly_Triangulation > &theDestMesh) const
	Loads only primitive arrays saved as stream buffer (it is primarily glTF data encoded in base64 saved to temporary buffer during glTF file reading).

bool	ReadStream (const occ::handle< RWGltf_GltfLatePrimitiveArray > &theSourceMesh, const occ::handle< Poly_Triangulation > &theDestMesh, std::istream &theStream, const RWGltf_GltfAccessor &theAccessor, RWGltf_GltfArrayType theType) const
	Fills triangulation, lines and points data.

Public Member Functions inherited from RWMesh_TriangulationReader
	RWMesh_TriangulationReader ()
	Constructor.

	~RWMesh_TriangulationReader () override
	Destructor.

const TCollection_AsciiString &	FileName () const
	Returns file name for reporting issues.

void	SetFileName (const TCollection_AsciiString &theFileName)
	Sets file name for reporting issues.

const RWMesh_CoordinateSystemConverter &	CoordinateSystemConverter () const
	Returns coordinate system converter using for correct data loading.

void	SetCoordinateSystemConverter (const RWMesh_CoordinateSystemConverter &theConverter)
	Sets coordinate system converter.

bool	IsDoublePrecision () const
	Returns flag to fill in triangulation using double or single precision; FALSE by default.

void	SetDoublePrecision (bool theIsDouble)
	Sets flag to fill in triangulation using double or single precision.

bool	ToSkipDegenerates () const
	Returns TRUE if degenerated triangles should be skipped during mesh loading (only indexes will be checked).

void	SetToSkipDegenerates (const bool theToSkip)
	Sets flag to skip degenerated triangles during mesh loading (only indexes will be checked).

bool	ToPrintDebugMessages () const
	Returns TRUE if additional debug information should be print.

void	SetToPrintDebugMessages (const bool theToPrint)
	Sets flag to print debug information.

void	StartStatistic ()
	Starts and reset internal object that accumulates nodes/triangles statistic during data reading.

void	StopStatistic ()
	Stops and nullify internal object that accumulates nodes/triangles statistic during data reading.

void	PrintStatistic () const
	Prints loading statistic. This method should be used between StartStatistic() and StopStatistic() calls for correct results.

bool	Load (const occ::handle< RWMesh_TriangulationSource > &theSourceMesh, const occ::handle< Poly_Triangulation > &theDestMesh, const occ::handle< OSD_FileSystem > &theFileSystem) const
	Loads primitive array.

Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor.

	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing.

Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter.

virtual	~Standard_Transient ()=default
	Destructor must be virtual.

virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.

bool	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.

bool	IsInstance (const char *const theTypeName) const
	Returns a true value if this is an instance of TypeName.

bool	IsKind (const opencascade::handle< Standard_Type > &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.

bool	IsKind (const char *const theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.

Standard_Transient *	This () const
	Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.

int	GetRefCount () const noexcept
	Get the reference counter of this object.

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.

int	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.

virtual void	Delete () const
	Memory deallocator for transient classes.

Protected Member Functions
virtual void	reportError (const TCollection_AsciiString &theText) const
	Reports error.

bool	load (const occ::handle< RWMesh_TriangulationSource > &theSourceMesh, const occ::handle< Poly_Triangulation > &theDestMesh, const occ::handle< OSD_FileSystem > &theFileSystem) const override
	Loads only primitive arrays from file data.

bool	finalizeLoading (const occ::handle< RWMesh_TriangulationSource > &theSourceMesh, const occ::handle< Poly_Triangulation > &theDestMesh) const override
	Performs additional actions to finalize data loading.

bool	loadStreamData (const occ::handle< RWMesh_TriangulationSource > &theSourceMesh, const occ::handle< Poly_Triangulation > &theDestMesh, bool theToResetStream=true) const
	Loads only primitive arrays saved as stream buffer (it is primarily glTF data encoded in base64 saved to temporary buffer during glTF file reading).

bool	readStreamData (const occ::handle< RWGltf_GltfLatePrimitiveArray > &theSourceGltfMesh, const RWGltf_GltfPrimArrayData &theGltfData, const occ::handle< Poly_Triangulation > &theDestMesh) const
	Reads primitive array from stream data.

bool	readFileData (const occ::handle< RWGltf_GltfLatePrimitiveArray > &theSourceGltfMesh, const RWGltf_GltfPrimArrayData &theGltfData, const occ::handle< Poly_Triangulation > &theDestMesh, const occ::handle< OSD_FileSystem > &theFileSystem) const
	Reads primitive array from file data.

virtual bool	readBuffer (const occ::handle< RWGltf_GltfLatePrimitiveArray > &theSourceGltfMesh, const occ::handle< Poly_Triangulation > &theDestMesh, std::istream &theStream, const RWGltf_GltfAccessor &theAccessor, RWGltf_GltfArrayType theType) const
	Fills triangulation data and ignore non-triangulation primitives.

virtual bool	readDracoBuffer (const occ::handle< RWGltf_GltfLatePrimitiveArray > &theSourceGltfMesh, const RWGltf_GltfPrimArrayData &theGltfData, const occ::handle< Poly_Triangulation > &theDestMesh, const occ::handle< OSD_FileSystem > &theFileSystem) const
	Reads primitive array from file data compressed in Draco format.

Protected Member Functions inherited from RWMesh_TriangulationReader
virtual bool	setNbPositionNodes (const occ::handle< Poly_Triangulation > &theMesh, int theNbNodes, bool theToCopyData=false) const
	coordinate system converter

virtual void	setNodePosition (const occ::handle< Poly_Triangulation > &theMesh, int theIndex, const gp_Pnt &thePnt) const
	Sets node position.

virtual bool	setNbUVNodes (const occ::handle< Poly_Triangulation > &theMesh, int theNbNodes) const
	Resizes array of UV nodes to specified size.

virtual void	setNodeUV (const occ::handle< Poly_Triangulation > &theMesh, int theIndex, const gp_Pnt2d &theUV) const
	Sets node UV texture coordinates.

virtual bool	setNbNormalNodes (const occ::handle< Poly_Triangulation > &theMesh, int theNbNodes) const
	Resizes array of nodes normals to specified size.

virtual void	setNodeNormal (const occ::handle< Poly_Triangulation > &theMesh, int theIndex, const NCollection_Vec3< float > &theNormal) const
	Sets node normal.

virtual bool	setNbTriangles (const occ::handle< Poly_Triangulation > &theMesh, int theNbTris, bool theToCopyData=false) const
	Resizes array of triangles to specified size.

virtual int	setTriangle (const occ::handle< Poly_Triangulation > &theMesh, int theIndex, const Poly_Triangle &theTriangle) const
	Adds triangle element.

virtual bool	setNbEdges (const occ::handle< Poly_Triangulation > &theMesh, const int theNbEdges, const bool theToCopyData=false) const
	Resizes array of edges to specified size.

virtual int	setEdge (const occ::handle< Poly_Triangulation > &theMesh, const int theIndex, const int theEdge) const
	Adds edge element.

Protected Attributes
occ::handle< RWMesh_TriangulationSource >	myTriangulation

Protected Attributes inherited from RWMesh_TriangulationReader
RWMesh_CoordinateSystemConverter	myCoordSysConverter
	coordinate system converter

TCollection_AsciiString	myFileName
	file name to use during message printing

std::mutex	myMutex
	internal mutex to collect nodes/triangles statistic

LoadingStatistic *	myLoadingStatistic
	statistic of loaded triangulation

bool	myIsDoublePrecision
	flag to fill in triangulation using single or double precision

bool	myToSkipDegenerateTris
	flag to skip degenerate triangles during loading, FALSE by default

bool	myToPrintDebugMessages
	flag to print additional debug information

Additional Inherited Members
Public Types inherited from Standard_Transient
typedef void	base_type
	Returns a type descriptor about this object.

Static Public Member Functions inherited from Standard_Transient
static constexpr const char *	get_type_name ()
	Returns a type descriptor about this object.

static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class.

Detailed Description

RWMesh_TriangulationReader implementation creating Poly_Triangulation.

Constructor & Destructor Documentation

◆ RWGltf_TriangulationReader()

RWGltf_TriangulationReader::RWGltf_TriangulationReader ( )

Empty constructor.

Member Function Documentation

◆ finalizeLoading()

bool RWGltf_TriangulationReader::finalizeLoading	(	const occ::handle< RWMesh_TriangulationSource > &	theSourceMesh,
		const occ::handle< Poly_Triangulation > &	theDestMesh ) const

overrideprotectedvirtual

Performs additional actions to finalize data loading.

Parameters

theSourceMesh	source triangulation
theDestMesh	triangulation to be modified

Reimplemented from RWMesh_TriangulationReader.

◆ load()

bool RWGltf_TriangulationReader::load	(	const occ::handle< RWMesh_TriangulationSource > &	theSourceMesh,
		const occ::handle< Poly_Triangulation > &	theDestMesh,
		const occ::handle< OSD_FileSystem > &	theFileSystem ) const

overrideprotectedvirtual

Loads only primitive arrays from file data.

Parameters

theSourceMesh	source triangulation
theDestMesh	triangulation to be modified
theFileSystem	shared file system to read from Note: this method skips "stream data" that should be loaded by LoadStreamData() call.

Implements RWMesh_TriangulationReader.

◆ LoadStreamData()

bool RWGltf_TriangulationReader::LoadStreamData	(	const occ::handle< RWMesh_TriangulationSource > &	theSourceMesh,
		const occ::handle< Poly_Triangulation > &	theDestMesh ) const

Loads only primitive arrays saved as stream buffer (it is primarily glTF data encoded in base64 saved to temporary buffer during glTF file reading).

◆ loadStreamData()

bool RWGltf_TriangulationReader::loadStreamData	(	const occ::handle< RWMesh_TriangulationSource > &	theSourceMesh,
		const occ::handle< Poly_Triangulation > &	theDestMesh,
		bool	theToResetStream = true ) const

protected

Loads only primitive arrays saved as stream buffer (it is primarily glTF data encoded in base64 saved to temporary buffer during glTF file reading).

Parameters

theSourceMesh	source triangulation
theDestMesh	triangulation to be modified
theToResetStream	if TRUE reset input stream data buffer after its loading.

◆ readBuffer()

virtual bool RWGltf_TriangulationReader::readBuffer	(	const occ::handle< RWGltf_GltfLatePrimitiveArray > &	theSourceGltfMesh,
		const occ::handle< Poly_Triangulation > &	theDestMesh,
		std::istream &	theStream,
		const RWGltf_GltfAccessor &	theAccessor,
		RWGltf_GltfArrayType	theType ) const

protectedvirtual

Fills triangulation data and ignore non-triangulation primitives.

Parameters

theSourceGltfMesh	source glTF triangulation
theDestMesh	triangulation to be modified
theStream	input stream to read from
theAccessor	buffer accessor
theType	array type

Returns: FALSE on error

◆ readDracoBuffer()

virtual bool RWGltf_TriangulationReader::readDracoBuffer	(	const occ::handle< RWGltf_GltfLatePrimitiveArray > &	theSourceGltfMesh,
		const RWGltf_GltfPrimArrayData &	theGltfData,
		const occ::handle< Poly_Triangulation > &	theDestMesh,
		const occ::handle< OSD_FileSystem > &	theFileSystem ) const

protectedvirtual

Reads primitive array from file data compressed in Draco format.

Parameters

theSourceGltfMesh	source glTF triangulation
theGltfData	primitive array element (Uri of file stream should not be empty)
theDestMesh	triangulation to be modified
theFileSystem	shared file system to read from

◆ readFileData()

bool RWGltf_TriangulationReader::readFileData	(	const occ::handle< RWGltf_GltfLatePrimitiveArray > &	theSourceGltfMesh,
		const RWGltf_GltfPrimArrayData &	theGltfData,
		const occ::handle< Poly_Triangulation > &	theDestMesh,
		const occ::handle< OSD_FileSystem > &	theFileSystem ) const

protected

Reads primitive array from file data.

Parameters

theSourceGltfMesh	source glTF triangulation
theGltfData	primitive array element (Uri of file stream should not be empty)
theDestMesh	triangulation to be modified
theFileSystem	shared file system to read from

◆ ReadStream()

bool RWGltf_TriangulationReader::ReadStream	(	const occ::handle< RWGltf_GltfLatePrimitiveArray > &	theSourceMesh,
		const occ::handle< Poly_Triangulation > &	theDestMesh,
		std::istream &	theStream,
		const RWGltf_GltfAccessor &	theAccessor,
		RWGltf_GltfArrayType	theType ) const

Fills triangulation, lines and points data.

Parameters

theSourceGltfMesh	source glTF triangulation
theDestMesh	triangulation to be modified
theStream	input stream to read from
theAccessor	buffer accessor
theType	array type

Returns: FALSE on error

◆ readStreamData()

bool RWGltf_TriangulationReader::readStreamData	(	const occ::handle< RWGltf_GltfLatePrimitiveArray > &	theSourceGltfMesh,
		const RWGltf_GltfPrimArrayData &	theGltfData,
		const occ::handle< Poly_Triangulation > &	theDestMesh ) const

protected

Reads primitive array from stream data.

Parameters

theSourceGltfMesh	source glTF triangulation
theGltfData	primitive array element (stream data should not be NULL)
theDestMesh	triangulation to be modified

◆ reportError()

virtual void RWGltf_TriangulationReader::reportError ( const TCollection_AsciiString & theText ) const

protectedvirtual

Reports error.

Field Documentation

◆ myTriangulation

occ::handle<RWMesh_TriangulationSource> RWGltf_TriangulationReader::myTriangulation

protected

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

RWGltf_TriangulationReader.hxx

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ RWGltf_TriangulationReader()

Member Function Documentation

◆ finalizeLoading()

◆ load()

◆ LoadStreamData()

◆ loadStreamData()

◆ readBuffer()

◆ readDracoBuffer()

◆ readFileData()

◆ ReadStream()

◆ readStreamData()

◆ reportError()

Field Documentation

◆ myTriangulation