#include <VrmlData_Scene.hxx>

Public Types
typedef VrmlData_ListOfNode::Iterator	Iterator

Public Member Functions
	VrmlData_Scene (const Handle< NCollection_IncAllocator > &=0L)

VrmlData_ErrorStatus	Status () const

void	SetVrmlDir (const TCollection_ExtendedString &)

void	SetLinearScale (const Standard_Real theScale)

NCollection_List< TCollection_ExtendedString >::Iterator	VrmlDirIterator () const

Iterator	GetIterator () const

VrmlData_MapOfNode::Iterator	NamedNodesIterator () const

const Handle< NCollection_IncAllocator > &	Allocator () const

const Handle< VrmlData_Node > &	AddNode (const Handle< VrmlData_Node > &theN, const Standard_Boolean isTopLevel=Standard_True)

Handle< VrmlData_Node >	FindNode (const char *theName, const Handle< Standard_Type > &theType=0L) const

Handle< VrmlData_Node >	FindNode (const char *theName, gp_Trsf &theLocation) const

VrmlData_Scene &	operator<< (Standard_IStream &theInput)

	operator TopoDS_Shape () const

TopoDS_Shape	GetShape (VrmlData_DataMapOfShapeAppearance &M)

const Handle< VrmlData_WorldInfo > &	WorldInfo () const

void	Dump (Standard_OStream &theStream) const

VrmlData_ErrorStatus	ReadReal (VrmlData_InBuffer &theBuffer, Standard_Real &theResult, Standard_Boolean isApplyScale, Standard_Boolean isOnlyPositive) const

VrmlData_ErrorStatus	ReadXYZ (VrmlData_InBuffer &theBuffer, gp_XYZ &theXYZ, Standard_Boolean isApplyScale, Standard_Boolean isOnlyPositive) const

VrmlData_ErrorStatus	ReadXY (VrmlData_InBuffer &theBuffer, gp_XY &theXYZ, Standard_Boolean isApplyScale, Standard_Boolean isOnlyPositive) const

VrmlData_ErrorStatus	ReadArrIndex (VrmlData_InBuffer &theBuffer, const Standard_Integer **&theArr, Standard_Size &theNBl) const

Standard_Integer	GetLineError () const

void	SetIndent (const Standard_Integer nSpc)

VrmlData_ErrorStatus	WriteXYZ (const gp_XYZ &theXYZ, const Standard_Boolean isScale, const char *thePostfix=0L) const

VrmlData_ErrorStatus	WriteArrIndex (const char thePrefix, const Standard_Integer *theArr, const Standard_Size theNbBl) const

VrmlData_ErrorStatus	WriteLine (const char theLine0, const char theLine1=0L, const Standard_Integer theIndent=0) const

VrmlData_ErrorStatus	WriteNode (const char *thePrefix, const Handle< VrmlData_Node > &) const

Standard_Boolean	IsDummyWrite () const

Static Public Member Functions
static VrmlData_ErrorStatus	ReadLine (VrmlData_InBuffer &theBuffer)

static VrmlData_ErrorStatus	ReadWord (VrmlData_InBuffer &theBuffer, TCollection_AsciiString &theStr)

Protected Member Functions
VrmlData_ErrorStatus	createNode (VrmlData_InBuffer &theBuffer, Handle< VrmlData_Node > &theNode, const Handle< Standard_Type > &Type)

Static Protected Member Functions
static VrmlData_ErrorStatus	readLine (VrmlData_InBuffer &theBuffer)

static VrmlData_ErrorStatus	readHeader (VrmlData_InBuffer &theBuffer)

static void	createShape (TopoDS_Shape &outShape, const VrmlData_ListOfNode &, VrmlData_DataMapOfShapeAppearance *)

Friends
Standard_OStream &	operator<< (Standard_OStream &theOutput, const VrmlData_Scene &theScene)

Detailed Description

Block of comments describing class VrmlData_Scene

Member Typedef Documentation

◆ Iterator

typedef VrmlData_ListOfNode::Iterator VrmlData_Scene::Iterator

Iterator type to get all contained Nodes one-by-one.

Constructor & Destructor Documentation

◆ VrmlData_Scene()

VrmlData_Scene::VrmlData_Scene ( const Handle< NCollection_IncAllocator > & = 0L )

Constructor.

Member Function Documentation

◆ AddNode()

const Handle< VrmlData_Node >& VrmlData_Scene::AddNode	(	const Handle< VrmlData_Node > &	theN,
		const Standard_Boolean	isTopLevel = `Standard_True`
	)

Add a Node. If theN belongs to another Scene, it is cloned.

VrmlData_WorldInfo cannot be added, in this case the method returns a NULL handle.

◆ Allocator()

const Handle< NCollection_IncAllocator >& VrmlData_Scene::Allocator ( ) const

inline

Allocator used by all nodes contained in the Scene.

◆ createNode()

VrmlData_ErrorStatus VrmlData_Scene::createNode	(	VrmlData_InBuffer &	theBuffer,
		Handle< VrmlData_Node > &	theNode,
		const Handle< Standard_Type > &	Type
	)

protected

Create the node.

Parameters

theBuffer	Input buffer from where the node is created
theNode	Output parameter, contains the created node on exit
Type	Node type to be checked. If it is NULL no type checking is done. Otherwise the created node is matched and an error is returned if no match detected.

◆ createShape()

static void VrmlData_Scene::createShape	(	TopoDS_Shape &	outShape,
		const VrmlData_ListOfNode &	,
		VrmlData_DataMapOfShapeAppearance *
	)

staticprotected

Create a single Shape object from all geometric nodes in the list.

◆ Dump()

void VrmlData_Scene::Dump ( Standard_OStream & theStream ) const

Diagnostic dump of the contents

◆ FindNode() [1/2]

Handle< VrmlData_Node > VrmlData_Scene::FindNode	(	const char *	theName,
		const Handle< Standard_Type > &	theType = `0L`
	)		const

Find a node by its name.

Parameters

theName	Name of the node to find.
theType	Type to match. If this value is NULL, the first found node with the given name is returned. If theType is given, only the node that has that type is returned.

◆ FindNode() [2/2]

Handle< VrmlData_Node > VrmlData_Scene::FindNode	(	const char *	theName,
		gp_Trsf &	theLocation
	)		const

Find a node by its name.

Parameters

theName	Name of the node to search for.
theLocation	Location of the found node with respect to the whole VRML shape.

◆ GetIterator()

Iterator VrmlData_Scene::GetIterator ( ) const

inline

Iterator of Nodes

◆ GetLineError()

Standard_Integer VrmlData_Scene::GetLineError ( ) const

inline

Query the line where the error occurred (if the status is not OK)

◆ GetShape()

TopoDS_Shape VrmlData_Scene::GetShape ( VrmlData_DataMapOfShapeAppearance & M )

Convert the scene to a Shape, with the information on materials defined for each sub-shape. This method should be used instead of TopoDS_Shape explicit conversion operator when you need to retrieve the material aspect for each face or edge in the returned topological object.

Parameters

M	Data Map that binds an Appearance instance to each created TFace or TEdge if the Appearance node is defined in VRML scene for that geometry.

Returns: TopoDS_Shape (Compound) holding all the scene, similar to the result of explicit TopoDS_Shape conversion operator.

◆ IsDummyWrite()

Standard_Boolean VrmlData_Scene::IsDummyWrite ( ) const

inline

Query if the current write operation is dummy, i.e., for the purpose of collecting information before the real write is commenced.

◆ NamedNodesIterator()

VrmlData_MapOfNode::Iterator VrmlData_Scene::NamedNodesIterator ( ) const

inline

Get the iterator of named nodes.

◆ operator TopoDS_Shape()

VrmlData_Scene::operator TopoDS_Shape ( ) const

Convert the scene to a Shape.

◆ operator<<()

VrmlData_Scene& VrmlData_Scene::operator<< ( Standard_IStream & theInput )

Import from text stream (file or else). This method is protected by Mutex, it is not allowed to read/write two VRML streams concurrently.

◆ ReadArrIndex()

VrmlData_ErrorStatus VrmlData_Scene::ReadArrIndex	(	VrmlData_InBuffer &	theBuffer,
		const Standard_Integer **&	theArr,
		Standard_Size &	theNBl
	)		const

Read an array of integer indices, for IndexedfaceSet and IndexedLineSet.

◆ readHeader()

static VrmlData_ErrorStatus VrmlData_Scene::readHeader ( VrmlData_InBuffer & theBuffer )

staticprotected

Read and verify the VRML header (the 1st line of the file)

◆ ReadLine()

static VrmlData_ErrorStatus VrmlData_Scene::ReadLine ( VrmlData_InBuffer & theBuffer )

static

Read a VRML line. Empty lines and comments are skipped. The processing starts here from theBuffer.LinePtr; if there is at least one non-empty character (neither space nor comment), this line is used without reading the next one.

Parameters

theLine	Buffer receiving the input line
theInput	Input stream
theLen	Length of the input buffer (maximal line length)

◆ readLine()

static VrmlData_ErrorStatus VrmlData_Scene::readLine ( VrmlData_InBuffer & theBuffer )

staticprotected

Read whatever line from the input checking the istream flags.

◆ ReadReal()

VrmlData_ErrorStatus VrmlData_Scene::ReadReal	(	VrmlData_InBuffer &	theBuffer,
		Standard_Real &	theResult,
		Standard_Boolean	isApplyScale,
		Standard_Boolean	isOnlyPositive
	)		const

Read one real value.

◆ ReadWord()

static VrmlData_ErrorStatus VrmlData_Scene::ReadWord	(	VrmlData_InBuffer &	theBuffer,
		TCollection_AsciiString &	theStr
	)

static

Read a singel word from the input stream, delimited by whitespace.

◆ ReadXY()

VrmlData_ErrorStatus VrmlData_Scene::ReadXY	(	VrmlData_InBuffer &	theBuffer,
		gp_XY &	theXYZ,
		Standard_Boolean	isApplyScale,
		Standard_Boolean	isOnlyPositive
	)		const

Read one doublet of real values.

◆ ReadXYZ()

VrmlData_ErrorStatus VrmlData_Scene::ReadXYZ	(	VrmlData_InBuffer &	theBuffer,
		gp_XYZ &	theXYZ,
		Standard_Boolean	isApplyScale,
		Standard_Boolean	isOnlyPositive
	)		const

Read one triplet of real values.

◆ SetIndent()

void VrmlData_Scene::SetIndent ( const Standard_Integer nSpc )

inline

Store the indentation for VRML output.

Parameters

nSpc	number of spaces to insert at every indentation level

◆ SetLinearScale()

void VrmlData_Scene::SetLinearScale ( const Standard_Real theScale )

inline

Set the scale factor that would be further used in methods ReadReal, ReadXYZ and ReadXY. All coordinates, distances and sized are multiplied by this factor during reading the data.

◆ SetVrmlDir()

void VrmlData_Scene::SetVrmlDir ( const TCollection_ExtendedString & )

Add the given directory path to the list of VRML file search directories. This method forms the list of directories ordered according to the sequence of this method calls. When an Inline node is found, the URLs in that node are matched with these directories. The last (implicit) search directory is the current process directory ("."). It takes effect if the list is empty or if there is no match with exisiting directories.

◆ Status()

VrmlData_ErrorStatus VrmlData_Scene::Status ( ) const

inline

Query the status of the previous operation. Normally it should be equal to VrmlData_StatusOK (no error).

◆ VrmlDirIterator()

NCollection_List<TCollection_ExtendedString>::Iterator VrmlData_Scene::VrmlDirIterator ( ) const

inline

Returns the directory iterator, to check the presence of requested VRML file in each iterated directory.

◆ WorldInfo()

const Handle< VrmlData_WorldInfo >& VrmlData_Scene::WorldInfo ( ) const

Query the WorldInfo member.

◆ WriteArrIndex()

VrmlData_ErrorStatus VrmlData_Scene::WriteArrIndex	(	const char *	thePrefix,
		const Standard_Integer **	theArr,
		const Standard_Size	theNbBl
	)		const

Write an array of integer indices, for IndexedFaceSet and IndexedLineSet.

◆ WriteLine()

VrmlData_ErrorStatus VrmlData_Scene::WriteLine	(	const char *	theLine0,
		const char *	theLine1 = `0L`,
		const Standard_Integer	theIndent = `0`
	)		const

Write a string to the output stream respecting the indentation. The string can be defined as two substrings that will be separated by a space. Each of the substrings can be NULL, then it is ignored. If both are NULL, then a single newline is output (without indent).

Parameters

theLine0	The first part of string to output
theLine1	The second part of string to output
theIndent	0 value ignored. negative decreases the current indent and then outputs. positive outputs and then increases the current indent.

Returns: Error status of the stream, or a special error if myOutput == NULL.

◆ WriteNode()

VrmlData_ErrorStatus VrmlData_Scene::WriteNode	(	const char *	thePrefix,
		const Handle< VrmlData_Node > &
	)		const

Write the given node to output stream 'myOutput'.

◆ WriteXYZ()

VrmlData_ErrorStatus VrmlData_Scene::WriteXYZ	(	const gp_XYZ &	theXYZ,
		const Standard_Boolean	isScale,
		const char *	thePostfix = `0L`
	)		const

Write a triplet of real values on a separate line.

Parameters

theXYZ	The value to be output.
isScale	If True, then each component is divided by myLinearScale.
thePostfix	Optional string that is added before the end of the line.

Friends And Related Function Documentation

◆ operator<<

Standard_OStream& operator<<	(	Standard_OStream &	theOutput,
		const VrmlData_Scene &	theScene
	)

friend

Export to text stream (file or else). This method is protected by Mutex, it is not allowed to read/write two VRML streams concurrently. The stream should give as the first line the VRML header: #VRML V2.0 <encoding type>=""> [optional comment] <line terminator>="">

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

VrmlData_Scene.hxx

VrmlData_Scene Class Reference

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Friends

Detailed Description

Member Typedef Documentation

◆ Iterator

Constructor & Destructor Documentation

◆ VrmlData_Scene()

Member Function Documentation

◆ AddNode()

◆ Allocator()

◆ createNode()

◆ createShape()

◆ Dump()

◆ FindNode() [1/2]

◆ FindNode() [2/2]

◆ GetIterator()

◆ GetLineError()

◆ GetShape()

◆ IsDummyWrite()

◆ NamedNodesIterator()

◆ operator TopoDS_Shape()

◆ operator<<()

◆ ReadArrIndex()

◆ readHeader()

◆ ReadLine()

◆ readLine()

◆ ReadReal()

◆ ReadWord()

◆ ReadXY()

◆ ReadXYZ()

◆ SetIndent()

◆ SetLinearScale()

◆ SetVrmlDir()

◆ Status()

◆ VrmlDirIterator()

◆ WorldInfo()

◆ WriteArrIndex()

◆ WriteLine()

◆ WriteNode()

◆ WriteXYZ()

Friends And Related Function Documentation

◆ operator<<