The OBJ mesh reader into XDE document. More...

#include <RWObj_CafReader.hxx>

Inheritance diagram for RWObj_CafReader:

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Public Member Functions
	RWObj_CafReader ()
	Empty constructor.

Standard_Boolean	IsSinglePrecision () const
	Return single precision flag for reading vertex data (coordinates); FALSE by default.

void	SetSinglePrecision (Standard_Boolean theIsSinglePrecision)
	Setup single/double precision flag for reading vertex data (coordinates).

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

virtual	~RWMesh_CafReader ()
	Destructor.

const Handle< TDocStd_Document > &	Document () const
	Return target document.

void	SetDocument (const Handle< TDocStd_Document > &theDoc)
	Set target document. Set system length unit according to the units of the document.

const TCollection_AsciiString &	RootPrefix () const
	Return prefix for generating root labels names.

void	SetRootPrefix (const TCollection_AsciiString &theRootPrefix)
	Set prefix for generating root labels names.

Standard_Boolean	ToFillIncompleteDocument () const
	Flag indicating if partially read file content should be put into the XDE document, TRUE by default.

void	SetFillIncompleteDocument (Standard_Boolean theToFillIncomplete)
	Set flag allowing partially read file content to be put into the XDE document.

Standard_Integer	MemoryLimitMiB () const
	Return memory usage limit in MiB, -1 by default which means no limit.

void	SetMemoryLimitMiB (Standard_Integer theLimitMiB)
	Set memory usage limit in MiB; can be ignored by reader implementation!

const RWMesh_CoordinateSystemConverter &	CoordinateSystemConverter () const
	Return coordinate system converter.

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

Standard_Real	SystemLengthUnit () const
	Return the length unit to convert into while reading the file, defined as scale factor for m (meters); -1.0 by default, which means that NO conversion will be applied.

void	SetSystemLengthUnit (Standard_Real theUnits)
	Set system length units to convert into while reading the file, defined as scale factor for m (meters).

Standard_Boolean	HasSystemCoordinateSystem () const
	Return TRUE if system coordinate system has been defined; FALSE by default.

const gp_Ax3 &	SystemCoordinateSystem () const
	Return system coordinate system; UNDEFINED by default, which means that no conversion will be done.

void	SetSystemCoordinateSystem (const gp_Ax3 &theCS)
	Set system origin coordinate system to perform conversion into during read.

void	SetSystemCoordinateSystem (RWMesh_CoordinateSystem theCS)
	Set system origin coordinate system to perform conversion into during read.

Standard_Real	FileLengthUnit () const
	Return the length unit to convert from while reading the file, defined as scale factor for m (meters). Can be undefined (-1.0) if file format is unitless.

void	SetFileLengthUnit (Standard_Real theUnits)
	Set (override) file length units to convert from while reading the file, defined as scale factor for m (meters).

Standard_Boolean	HasFileCoordinateSystem () const
	Return TRUE if file origin coordinate system has been defined.

const gp_Ax3 &	FileCoordinateSystem () const
	Return file origin coordinate system; can be UNDEFINED, which means no conversion will be done.

void	SetFileCoordinateSystem (const gp_Ax3 &theCS)
	Set (override) file origin coordinate system to perform conversion during read.

void	SetFileCoordinateSystem (RWMesh_CoordinateSystem theCS)
	Set (override) file origin coordinate system to perform conversion during read.

bool	Perform (const TCollection_AsciiString &theFile, const Message_ProgressRange &theProgress)
	Open stream and pass it to Perform method. The Document instance should be set beforehand.

bool	Perform (std::istream &theStream, const Message_ProgressRange &theProgress, const TCollection_AsciiString &theFile="")
	Read the data from specified file.

Standard_Integer	ExtraStatus () const
	Return extended status flags.

TopoDS_Shape	SingleShape () const
	Return result as a single shape.

const NCollection_IndexedMap< TCollection_AsciiString > &	ExternalFiles () const
	Return the list of complementary files - external references (textures, data, etc.).

const TColStd_IndexedDataMapOfStringString &	Metadata () const
	Return metadata map.

Standard_Boolean	ProbeHeader (const TCollection_AsciiString &theFile, const Message_ProgressRange &theProgress=Message_ProgressRange())
	Open stream and pass it to ProbeHeader method.

Standard_Boolean	ProbeHeader (std::istream &theStream, const TCollection_AsciiString &theFile="", const Message_ProgressRange &theProgress=Message_ProgressRange())
	Read the header data from specified file without reading entire model. The main purpose is collecting metadata and external references - for copying model into a new location, for example. Can be NOT implemented (unsupported by format / reader).

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 ()
	Destructor must be virtual.

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

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

Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName.

Standard_Boolean	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.

Standard_Boolean	IsKind (const Standard_CString 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.

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

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object.

Standard_Integer	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value.

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

Protected Member Functions
virtual Standard_Boolean	performMesh (std::istream &theStream, const TCollection_AsciiString &theFile, const Message_ProgressRange &theProgress, const Standard_Boolean theToProbe) override
	Read the mesh from specified file.

virtual Handle< RWObj_TriangulationReader >	createReaderContext ()
	Create reader context. Can be overridden by sub-class to read triangulation into application-specific data structures instead of Poly_Triangulation.

virtual void	BindNamedShape (const TopoDS_Shape &theShape, const TCollection_AsciiString &theName, const RWObj_Material *theMaterial, const Standard_Boolean theIsRootShape) override

Protected Member Functions inherited from RWMesh_CafReader
virtual Standard_Boolean	perform (const TCollection_AsciiString &theFile, const Message_ProgressRange &theProgress, const Standard_Boolean theToProbe)
	Open stream and pass it to Perform method.

virtual Standard_Boolean	perform (std::istream &theStream, const TCollection_AsciiString &theFile, const Message_ProgressRange &theProgress, const Standard_Boolean theToProbe)
	Read the data from specified file. Default implementation calls performMesh() and fills XDE document from collected shapes.

virtual Standard_Boolean	performMesh (const TCollection_AsciiString &theFile, const Message_ProgressRange &theProgress, const Standard_Boolean theToProbe)
	Read the mesh from specified file.

virtual void	fillDocument ()
	Fill document with new root shapes.

Standard_Boolean	addShapeIntoDoc (CafDocumentTools &theTools, const TopoDS_Shape &theShape, const TDF_Label &theLabel, const TCollection_AsciiString &theParentName)
	Append new shape into the document (recursively).

Standard_Boolean	addSubShapeIntoDoc (CafDocumentTools &theTools, const TopoDS_Shape &theShape, const TDF_Label &theParentLabel)
	Append new sub-shape into the document (recursively).

void	setShapeName (const TDF_Label &theLabel, const TopAbs_ShapeEnum theShapeType, const TCollection_AsciiString &theName, const TDF_Label &theParentLabel, const TCollection_AsciiString &theParentName)
	Put name attribute onto the label.

void	setShapeStyle (const CafDocumentTools &theTools, const TDF_Label &theLabel, const XCAFPrs_Style &theStyle)
	Put color and material attributes onto the label.

void	setShapeNamedData (const CafDocumentTools &theTools, const TDF_Label &theLabel, const Handle< TDataStd_NamedData > &theNameData)
	Put name data (metadata) attribute onto the label.

void	generateNames (const TCollection_AsciiString &theFile, const Standard_Integer theRootLower, const Standard_Boolean theWithSubLabels)
	Generate names for root labels starting from specified index.

Protected Member Functions inherited from RWObj_IShapeReceiver

Protected Attributes
NCollection_DataMap< TCollection_AsciiString, Handle< XCAFDoc_VisMaterial > >	myObjMaterialMap

Standard_Boolean	myIsSinglePrecision
	flag for reading vertex data with single or double floating point precision

Protected Attributes inherited from RWMesh_CafReader
Handle< TDocStd_Document >	myXdeDoc
	target document

TColStd_IndexedDataMapOfStringString	myMetadata
	metadata map

NCollection_IndexedMap< TCollection_AsciiString >	myExternalFiles
	the list of complementary files - external references (textures, data, etc.)

TCollection_AsciiString	myRootPrefix
	root folder for generating root labels names

TopTools_SequenceOfShape	myRootShapes
	sequence of result root shapes

RWMesh_NodeAttributeMap	myAttribMap
	map of per-shape attributes

RWMesh_CoordinateSystemConverter	myCoordSysConverter
	coordinate system converter

Standard_Boolean	myToFillDoc
	fill document from shape sequence

Standard_Boolean	myToFillIncomplete
	fill the document with partially retrieved data even if reader has failed with error

Standard_Integer	myMemoryLimitMiB
	memory usage limit

Standard_Integer	myExtraStatus
	extra status bitmask

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.

Static Protected Member Functions inherited from RWMesh_CafReader
static TCollection_AsciiString	shapeTypeToString (TopAbs_ShapeEnum theType)
	Return shape type as string.

Detailed Description

The OBJ mesh reader into XDE document.

Constructor & Destructor Documentation

◆ RWObj_CafReader()

RWObj_CafReader::RWObj_CafReader ( )

Empty constructor.

Member Function Documentation

◆ BindNamedShape()

virtual void RWObj_CafReader::BindNamedShape	(	const TopoDS_Shape &	theShape,
		const TCollection_AsciiString &	theName,
		const RWObj_Material *	theMaterial,
		const Standard_Boolean	theIsRootShape )

overrideprotectedvirtual

Parameters

theShape	shape to register
theName	shape name
theMaterial	shape material
theIsRootShape	indicates that this is a root object (free shape)

Implements RWObj_IShapeReceiver.

◆ createReaderContext()

virtual Handle< RWObj_TriangulationReader > RWObj_CafReader::createReaderContext ( )

protectedvirtual

Create reader context. Can be overridden by sub-class to read triangulation into application-specific data structures instead of Poly_Triangulation.

◆ IsSinglePrecision()

Standard_Boolean RWObj_CafReader::IsSinglePrecision ( ) const

inline

Return single precision flag for reading vertex data (coordinates); FALSE by default.

◆ performMesh()

virtual Standard_Boolean RWObj_CafReader::performMesh	(	std::istream &	theStream,
		const TCollection_AsciiString &	theFile,
		const Message_ProgressRange &	theProgress,
		const Standard_Boolean	theToProbe )

overrideprotectedvirtual

Read the mesh from specified file.

Implements RWMesh_CafReader.

◆ SetSinglePrecision()

void RWObj_CafReader::SetSinglePrecision ( Standard_Boolean theIsSinglePrecision )

inline

Setup single/double precision flag for reading vertex data (coordinates).

Field Documentation

◆ myIsSinglePrecision

Standard_Boolean RWObj_CafReader::myIsSinglePrecision

protected

flag for reading vertex data with single or double floating point precision

◆ myObjMaterialMap

NCollection_DataMap<TCollection_AsciiString, Handle< XCAFDoc_VisMaterial > > RWObj_CafReader::myObjMaterialMap