Open Inventor Release 2024.2.0
 
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SoVRMemoryWriter Class Reference

Large Data Management Write data in memory More...

#include <VolumeViz/writers/SoVRMemoryWriter.h>

+ Inheritance diagram for SoVRMemoryWriter:

Public Member Functions

virtual SoType getTypeId () const
 Returns the type identifier for this specific instance.
 
 SoVRMemoryWriter ()
 Constructor.
 
virtual SbBool initialize ()
 Initialize writer from current parameters.
 
virtual SbBool isDataConverted () const
 Always returns FALSE.
 
virtual SbBool writeSubSlice (int sliceIndex, const SbBox2i32 &subSlice, SoBufferObject *buffer)
 Writes the data contained in the specified subslice.
 
- Public Member Functions inherited from SoVolumeWriter
virtual SbBool closeAllHandles ()
 Close all ressources that are locked by the writer so that someone else can read or write to them.
 
virtual SbBool restoreAllHandles ()
 Restore ressources that was closed by closeAllHandles.
 
virtual SbBool writeTile (const SoLDMTileID &tileId, SoBufferObject *buffer)
 Given a tileID, writes a tile if the data is organized in tiles (see SoLDMTileID).
 
virtual SbBool finish ()
 Finish writing the file, free ressources, ... depending on kind of writer.
 
- 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 SoFieldgetField (const SbName &fieldName) const
 Returns a the field of this object whose name is fieldName.
 
virtual SoFieldgetEventIn (const SbName &fieldName) const
 Returns a the eventIn with the given name.
 
virtual SoFieldgetEventOut (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 void touch ()
 Marks an instance as modified, simulating a change to it.
 
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 Public Member Functions inherited from SoVolumeWriter
static SoType getClassTypeId ()
 Returns the type identifier for this class.
 
- 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

SoSFBufferObject data
 Buffer containing data.
 
SoSFVec2s padding
 Padding over x and y dimension, use to align slice data in memory.
 
- Public Attributes inherited from SoVolumeWriter
SoSFBox3f extent
 Extent of dataset.
 
SoSFVec3i32 dimension
 Dimension of dataset, in voxels.
 
SoSFEnum dataType
 Type of input data (that will be given in the writeXXX method) Use enum SoDataSet::DataType.
 
SoSFEnum wordFormat
 Endianess of data.
 

Additional Inherited Members

- Public Types inherited from SoVolumeWriter
enum  WordFormat {
  WF_BIG_ENDIAN = 0 ,
  WF_LITTLE_ENDIAN = 1
}
 Endianess. More...
 

Detailed Description

Large Data Management Write data in memory

This writer is the writer corresponding to SoVRMemoryReader. It writes data in the data buffer. You can manually specify this buffer. Else, a buffer will be created in the initialize() method. This writer does not organize data on tiles (isDataConverted returns FALSE). So you must use the writeSubSlice method and write data slice by slice.

Do not use the writeTile method with this writer.

SoVRMemoryReader can return an instance of this class already configured to write into the same area of memory.

Padding can be used to add zeros around the slice to align them in memory:

 ____________________
 |xxxxxxxxxxx|      |
 |xxxxxxxxxxx|      |
 |xxxxxxxxxxx|      |
 |___________|      |
 |                  |
 |__________________|
 <-----------><----->
     slice    padding

SEE ALSO

SoVRMemoryReader SoVolumeWriter SoVRLdmFileWriter

Definition at line 66 of file SoVRMemoryWriter.h.

Constructor & Destructor Documentation

◆ SoVRMemoryWriter()

SoVRMemoryWriter::SoVRMemoryWriter ( )

Constructor.

Member Function Documentation

◆ getClassTypeId()

static SoType SoVRMemoryWriter::getClassTypeId ( )
static

Returns the type identifier for this class.


◆ getTypeId()

virtual SoType SoVRMemoryWriter::getTypeId ( ) const
virtual

Returns the type identifier for this specific instance.

Reimplemented from SoVolumeWriter.

◆ initialize()

virtual SbBool SoVRMemoryWriter::initialize ( )
virtual

Initialize writer from current parameters.

Allocate data buffer

Reimplemented from SoVolumeWriter.

◆ isDataConverted()

virtual SbBool SoVRMemoryWriter::isDataConverted ( ) const
virtual

Always returns FALSE.

This writer is not organized by tiles.

Implements SoVolumeWriter.

◆ writeSubSlice()

virtual SbBool SoVRMemoryWriter::writeSubSlice ( int  sliceIndex,
const SbBox2i32 subSlice,
SoBufferObject buffer 
)
virtual

Writes the data contained in the specified subslice.

This function must be called only if isDataConverted() return FALSE.

Must be reimplemented in children classes.

Reimplemented from SoVolumeWriter.

Member Data Documentation

◆ data

SoSFBufferObject SoVRMemoryWriter::data

Buffer containing data.

If specified, it must be the right size (nbVoxel * dataSize, by taking padding in account). If NULL, it will be allocated in the initialize() method and deleted in destructor. default is NULL.

Definition at line 76 of file SoVRMemoryWriter.h.

◆ padding

SoSFVec2s SoVRMemoryWriter::padding

Padding over x and y dimension, use to align slice data in memory.

default is (0, 0).

Definition at line 80 of file SoVRMemoryWriter.h.


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