Node that defines the pattern to use when rendering shapes. More...

#include <Inventor/nodes/SoPattern.h>

Inheritance diagram for SoPattern:

Public Types
enum	FilterType { INCLUSIVE_FILTER , EXCLUSIVE_FILTER }
	Possible value of the filterType used by the method loadPatterns. More...

Public Member Functions
virtual SoType	getTypeId () const
	Returns the type identifier for this specific instance.

	SoPattern ()
	Constructor.

virtual void	setOverride (const SbBool state)
	Set the state of the override field.

virtual SbBool	isOverride () const
	Returns the state of the override field.

Public Member Functions inherited from SoNode
virtual SoNode *	copy (SbBool copyConnections=FALSE) const
	Creates and returns an exact copy of the node.

virtual SbBool	affectsState () const
	Returns TRUE if a node has an effect on the state during traversal.

virtual void	touch ()
	Marks an instance as modified, simulating a change to it.

Public Member Functions inherited from SoFieldContainer
void	setToDefaults ()
	Sets all fields in this object to their default values.

SbBool	hasDefaultValues () const
	Returns TRUE if all of the object's fields have their default values.

SbBool	fieldsAreEqual (const SoFieldContainer *fc) const
	Returns TRUE if this object's fields are exactly equal to fc's fields.

void	copyFieldValues (const SoFieldContainer *fc, SbBool copyConnections=FALSE)
	Copies the contents of fc's fields into this object's fields.

SoNONUNICODE SbBool	set (const char *fieldDataString)
	Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format.

SbBool	set (const SbString &fieldDataString)
	Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format.

void	get (SbString &fieldDataString)
	Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string.

virtual int	getFields (SoFieldList &list) const
	Appends references to all of this object's fields to resultList, and returns the number of fields appended.

virtual int	getAllFields (SoFieldList &list) const
	Returns a list of fields, including the eventIn's and eventOut's.

virtual SoField *	getField (const SbName &fieldName) const
	Returns a the field of this object whose name is fieldName.

virtual SoField *	getEventIn (const SbName &fieldName) const
	Returns a the eventIn with the given name.

virtual SoField *	getEventOut (const SbName &fieldName) const
	Returns the eventOut with the given name.

SbBool	getFieldName (const SoField *field, SbName &fieldName) const
	Returns the name of the given field in the fieldName argument.

SbBool	enableNotify (SbBool flag)
	Notification at this Field Container is enabled (if flag == TRUE) or disabled (if flag == FALSE).

SbBool	isNotifyEnabled () const
	Notification is the process of telling interested objects that this object has changed.

virtual void	setUserData (void *data)
	Sets application data.

void *	getUserData (void) const
	Gets user application data.

Public Member Functions inherited from SoBase
virtual SbName	getName () const
	Returns the name of an instance.

virtual void	setName (const SbName &name)
	Sets the name of an instance.

void	setSynchronizable (const bool b)
	Sets this to be a ScaleViz synchronizable object.

bool	isSynchronizable () const
	Gets the ScaleViz synchronizable state of this object.

Public Member Functions inherited from SoRefCounter
void	ref () const
	Adds a reference to an instance.

void	unref () const
	Removes a reference from an instance.

void	unrefNoDelete () const
	unrefNoDelete() should be called when it is desired to decrement the reference count, but not delete the instance if this brings the reference count to zero.

int	getRefCount () const
	Returns current reference count.

void	lock () const
	lock this instance.

void	unlock () const
	unlock this instance.

Public Member Functions inherited from SoTypedObject
SbBool	isOfType (const SoType &type) const
	Returns TRUE if this object is of the type specified in type or is derived from that type.

template<typename TypedObjectClass >
SbBool	isOfType () const
	Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class.

Static Public Member Functions
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

static SoNONUNICODE SbBool	loadPatterns (const char fileName, int numFilters=0, const SbString filterNames=NULL, FilterType filterType=INCLUSIVE_FILTER)
	Loads a pattern file, with optional filtering of patterns.

static SbBool	loadPatterns (const SbString &fileName, int numFilters=0, const SbString *filterNames=NULL, FilterType filterType=INCLUSIVE_FILTER)
	Loads a pattern file, with optional filtering of patterns.

static void	getPatternNames (int &number, SbString &names, const char category=NULL)
	Gets the names of loaded patterns.

static SoNONUNICODE void	addPattern (const char category, const char name, const unsigned char *bytes)
	Adds a new pattern specified as an array of 128 bytes.

static void	addPattern (const SbString &category, const SbString &name, const unsigned char *bytes)
	Adds a new pattern specified as an array of 128 bytes.

static SoNONUNICODE void	getPattern (const char category, const char name, unsigned char *&bytes)
	Retrieves a pattern bitmap (an array of 128 bytes) specified by its category and name.

static void	getPattern (const SbString &category, const SbString &name, unsigned char *&bytes)
	Retrieves a pattern bitmap (an array of 128 bytes) specified by its category and name.

Static Public Member Functions inherited from SoNode
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

static SoNode *	getByName (const SbName &name)
	A node's name can be set using SoBase::setName().

static int	getByName (const SbName &name, SoNodeList &list)
	A node's name can be set using SoBase::setName().

Static Public Member Functions inherited from SoFieldContainer
static SoType	getClassTypeId ()
	Returns the type of this class.

Static Public Member Functions inherited from SoBase
static SoType	getClassTypeId ()
	Returns type identifier for this class.

Static Public Member Functions inherited from SoTypedObject
static SoType	getClassTypeId ()
	Returns the type identifier for this class.

Public Attributes
SoSFString	category
	Specifies the name of a group of patterns.

SoSFString	name
	Specifies the name of a pattern within a category.

Detailed Description

Node that defines the pattern to use when rendering shapes.

This node specifies the current pattern for all subsequent shape nodes in a scene graph.

A pattern is a 32x32 bitmap that is interpreted as a mask of 0s and 1s. Where a 1 appears, the corresponding pixel in the polygon is drawn; where a 0 appears, nothing is drawn.

You can load a pattern file containing one or more patterns using the loadPatterns() method. You can also define and load patterns programmatically using the addPattern() method.

Here is a sample showing the pattern file format.

  "GEOLOGY"
  # The first string is the category name of the first pattern.
  # This is a comment !
  "PATTERN N1"
  # The second string is the name of the pattern.
  # To define the pattern, you must define a 32x32 sequence of
  # '1' and '0'.
  0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
  0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
  0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
  0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 ...
  #============================================
  "PATTERN N2"
  0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
  0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
  0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
  0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 ...

Note:

A pattern file can contain only one category.

Usage Notes

Patterns can be used for distinguishing, for example, different kinds of rocks in a geologic formation.
The HardCopy extension (formerly known as PlotMaster) allows you to generate resolution-independent vector hardcopy output. It handles patterns but does not handle textures (they are ignored). If you are planning to use the HardCopy extension, you may want to use patterns rather than textures to distinguish different shapes in your scene graph.

FILE FORMAT/DEFAULT

category	""
name	""

NOTE: When you write a pattern node out to a file, the file will not contain enough information to fully reconstruct the original scene graph. The pattern node and its current fields are written out (as expected). However, the current fields only specify a category name and a pattern name. They do not specify the actual pattern(s) (like a typical attribute node) or a filename to get the patterns from (like a texture node).

Member Enumeration Documentation

◆ FilterType

enum SoPattern::FilterType

Possible value of the filterType used by the method loadPatterns.

In the case INCLUSIVE_FILTER, we only load patterns of the file define by the list of patterns names. In the case EXCLUSIVE_FILTER, we load all patterns defined in the file without those define by the list of patterns names.

Enumerator
INCLUSIVE_FILTER	Load only the patterns that are in the list of pattern names.
EXCLUSIVE_FILTER	Load all patterns except those specified in the list of pattern names.

Definition at line 136 of file SoPattern.h.

Constructor & Destructor Documentation

◆ SoPattern()

SoPattern::SoPattern ( )

Constructor.

Member Function Documentation

◆ addPattern() [1/2]

static SoNONUNICODE void SoPattern::addPattern	(	const char *	category,
		const char *	name,
		const unsigned char *	bytes
	)

static

Adds a new pattern specified as an array of 128 bytes.

A category and a name are specified for this pattern. If the category and name are already in the list of patterns, the new pattern will not be added. If either the category or the name is an empty string, no pattern is added.

Non Unicode: This function should not be used in a Unicode application.

◆ addPattern() [2/2]

static void SoPattern::addPattern	(	const SbString &	category,
		const SbString &	name,
		const unsigned char *	bytes
	)

static

Adds a new pattern specified as an array of 128 bytes.

A category and a name are specified for this pattern. If the category and name are already in the list of patterns, the new pattern will not be added. If either the category or the name is an empty string, no pattern is added.

◆ getClassTypeId()

static SoType SoPattern::getClassTypeId ( )

static

Returns the type identifier for this class.

◆ getPattern() [1/2]

static SoNONUNICODE void SoPattern::getPattern	(	const char *	category,
		const char *	name,
		unsigned char *&	bytes
	)

static

Retrieves a pattern bitmap (an array of 128 bytes) specified by its category and name.

the pattern data pointed to by bytes is read-only.

Non Unicode: This function should not be used in a Unicode application.

◆ getPattern() [2/2]

static void SoPattern::getPattern	(	const SbString &	category,
		const SbString &	name,
		unsigned char *&	bytes
	)

static

Retrieves a pattern bitmap (an array of 128 bytes) specified by its category and name.

the pattern data pointed to by bytes is read-only.

◆ getPatternNames()

static void SoPattern::getPatternNames	(	int &	number,
		SbString *&	names,
		const char *	category = `NULL`
	)

static

Gets the names of loaded patterns.

Category is optional. You are responsible for deleting the names array when it is no longer needed. For example, delete []names;

◆ getTypeId()

virtual SoType SoPattern::getTypeId ( ) const

virtual

Returns the type identifier for this specific instance.

Reimplemented from SoNode.

◆ isOverride()

virtual SbBool SoPattern::isOverride ( ) const

inlinevirtual

Returns the state of the override field.

Reimplemented from SoNode.

Definition at line 234 of file SoPattern.h.

◆ loadPatterns() [1/2]

static SoNONUNICODE SbBool SoPattern::loadPatterns	(	const char *	fileName,
		int	numFilters = `0`,
		const SbString *	filterNames = `NULL`,
		FilterType	filterType = `INCLUSIVE_FILTER`
	)

static

Loads a pattern file, with optional filtering of patterns.

You can specify the file name with or without a full path. If you specify the file name without the path, the file will be loaded from the directory $OIVHOME/data/patterns. If the file name is not found, a default pattern will be used.

filterNames is an array of pattern names. This will be an array of patterns to include (or exclude) depending on the FilterType. The size of this array is numFilters.

Non Unicode: This function should not be used in a Unicode application.

◆ loadPatterns() [2/2]

static SbBool SoPattern::loadPatterns	(	const SbString &	fileName,
		int	numFilters = `0`,
		const SbString *	filterNames = `NULL`,
		FilterType	filterType = `INCLUSIVE_FILTER`
	)

static

Loads a pattern file, with optional filtering of patterns.

You can specify the file name with or without a full path. If you specify the file name without the path, the file will be loaded from the directory $OIVHOME/data/patterns. If the file name is not found, a default pattern will be used.

filterNames is an array of pattern names. This will be an array of patterns to include (or exclude) depending on the FilterType. The size of this array is numFilters.

◆ setOverride()

virtual void SoPattern::setOverride ( const SbBool state )

inlinevirtual

Set the state of the override field.

see SoNode::setOverride doc.

Reimplemented from SoNode.

Definition at line 228 of file SoPattern.h.

Member Data Documentation

◆ category

SoSFString SoPattern::category

Specifies the name of a group of patterns.

If the category name is invalid or not found, the default pattern is used.

Definition at line 118 of file SoPattern.h.

◆ name

SoSFString SoPattern::name

Specifies the name of a pattern within a category.

If the pattern name is invalid or not found, the default pattern is used.

Definition at line 124 of file SoPattern.h.

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

Inventor/nodes/SoPattern.h

Open Inventor Release 2024.2.1

Public Types

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

FILE FORMAT/DEFAULT

SEE ALSO

Member Enumeration Documentation

◆ FilterType

Constructor & Destructor Documentation

◆ SoPattern()

Member Function Documentation

◆ addPattern() [1/2]

◆ addPattern() [2/2]

◆ getClassTypeId()

◆ getPattern() [1/2]

◆ getPattern() [2/2]

◆ getPatternNames()

◆ getTypeId()

◆ isOverride()

◆ loadPatterns() [1/2]

◆ loadPatterns() [2/2]

◆ setOverride()

Member Data Documentation

◆ category

◆ name