SoSFImage3(3) Coin SoSFImage3(3) NAME SoSFImage3 - The SoSFImage3 class is used to store 3D (volume) images. SYNOPSIS #include Inherits SoSField. Public Member Functions virtual SoType getTypeId (void) const virtual void copyFrom (const SoField &field) const SoSFImage3 & operator= (const SoSFImage3 &field) virtual SbBool isSame (const SoField &field) const const unsigned char * getValue (SbVec3s &size, int &nc) const void setValue (const SbVec3s &size, const int nc, const unsigned char *bytes) int operator== (const SoSFImage3 &field) const int operator!= (const SoSFImage3 &field) const unsigned char * startEditing (SbVec3s &size, int &nc) void finishEditing (void) Public Member Functions inherited from SoSField virtual ~SoSField () Public Member Functions inherited from SoField virtual ~SoField () void setIgnored (SbBool ignore) SbBool isIgnored (void) const void setDefault (SbBool defaultVal) SbBool isDefault (void) const SbBool isOfType (const SoType type) const void enableConnection (SbBool flag) SbBool isConnectionEnabled (void) const SbBool connectFrom (SoEngineOutput *master, SbBool notnotify=FALSE, SbBool append=FALSE) SbBool appendConnection (SoEngineOutput *master, SbBool notnotify=FALSE) void disconnect (SoEngineOutput *engineoutput) SbBool isConnectedFromEngine (void) const SbBool getConnectedEngine (SoEngineOutput *&master) const SbBool connectFrom (SoField *master, SbBool notnotify=FALSE, SbBool append=FALSE) SbBool appendConnection (SoField *master, SbBool notnotify=FALSE) void disconnect (SoField *field) SbBool isConnectedFromField (void) const SbBool getConnectedField (SoField *&master) const int getNumConnections (void) const int getForwardConnections (SoFieldList &slavelist) const int getConnections (SoFieldList &masterlist) const void disconnect (void) SbBool isConnected (void) const void setContainer (SoFieldContainer *cont) SoFieldContainer * getContainer (void) const SbBool set (const char *valuestring) void get (SbString &valuestring) SbBool shouldWrite (void) const virtual void touch (void) virtual void startNotify (void) virtual void notify (SoNotList *nlist) SbBool enableNotify (SbBool on) SbBool isNotifyEnabled (void) const void addAuditor (void *f, SoNotRec::Type type) void removeAuditor (void *f, SoNotRec::Type type) int operator== (const SoField &f) const int operator!= (const SoField &f) const virtual void connectionStatusChanged (int numconnections) SbBool isReadOnly (void) const virtual void fixCopy (SbBool copyconnections) virtual SbBool referencesCopy (void) const void copyConnection (const SoField *fromfield) virtual SbBool read (SoInput *input, const SbName &name) virtual void write (SoOutput *out, const SbName &name) const virtual void countWriteRefs (SoOutput *out) const void setFieldType (int type) int getFieldType (void) const SbBool getDirty (void) const void setDirty (SbBool dirty) void evaluate (void) const Static Public Member Functions static void * createInstance (void) static SoType getClassTypeId (void) static void initClass (void) Static Public Member Functions inherited from SoSField static void initClass (void) static SoType getClassTypeId (void) static void atexit_cleanup (void) Static Public Member Functions inherited from SoField static void initClass (void) static void initClasses (void) static void cleanupClass (void) static SoType getClassTypeId (void) Additional Inherited Members Public Types inherited from SoField enum FieldType { NORMAL_FIELD = 0, EVENTIN_FIELD, EVENTOUT_FIELD, EXPOSED_FIELD } Protected Member Functions inherited from SoSField SoSField (void) Protected Member Functions inherited from SoField SoField (void) void valueChanged (SbBool resetdefault=TRUE) virtual void evaluateConnection (void) const virtual SbBool readConnection (SoInput *in) virtual void writeConnection (SoOutput *out) const SbBool isDestructing (void) const virtual SoNotRec createNotRec (SoBase *cont) Detailed Description The SoSFImage3 class is used to store 3D (volume) images. The SoSFImage3 class provides storage for inline 3D image maps. 3D images in Coin are mainly used for 3D texture mapping support. SoSFImage3 instances can be exported and imported as any other field class in Coin. The components of an SoSFImage3 is: its image dimensions (width, height and depth), the number of bytes used for describing each pixel (number of components) and an associated pixel buffer. The size of the pixel buffer will be width*height*depth*components. For texture maps, the components / bytes-per-pixel setting translates as follows: use 1 for a grayscale imagemap, 2 for grayscale + opacity (i.e. alpha value), 3 for RGB (1 byte each for red, green and blue) and 4 components means 3 bytes for RGB + 1 byte opacity value (aka RGBA). This field is serializable into the Inventor / Coin file format in the following manner: FIELDNAME X Y Z C 0xRRGGBBAA 0xRRGGBBAA ... For 3-component images, the pixel-format is 0xXXRRGGBB, where the byte in the pixel color value marked as 'XX' is ignored and can be left out. For 2-component images, the pixel-format is 0xXXXXGGAA, where the bytes in the pixel color values marked as 'XX' are ignored and can be left out. 'GG' is the part which gives a grayscale value and 'AA' is for opacity. For 1-component images, the pixel-format is 0xXXXXXXGG, where the bytes in the pixel color values marked as 'XX' are ignored and can be left out. The pixels are read as being ordered in rows along X (width), columns along Y (height, bottom to top) and Z 'planes' (depth, front to back). Here's a simple example of the file format serialization, for a 2x2x2 RGB-image inside an SoTexture3 node: Texture3 { images 2 2 2 3 0x000000 0x00ff00 0xff0000 0xffff00 0x000000 0x0000ff 0x00ff00 0x00ffff } The image above is colored black+green on the first line and red+yellow on the second line in the first Z plane. The second Z plane is colored black+blue on the first line and green+cyan on the second line. Be aware that this class is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API. See also SoTexture3, SoSFImage Since Coin 2.0 TGS Inventor 2.6 Member Function Documentation void * SoSFImage3::createInstance (void) [static] This API member is considered internal to the library, as it is not likely to be of interest to the application programmer. Creates a new instance of the class type corresponding to the SoType object. SoType SoSFImage3::getClassTypeId (void) [static] This static method returns the SoType object associated with objects of this class. SoType SoSFImage3::getTypeId (void) const [virtual] Returns the type identification of an object derived from a class inheriting SoField. This is used for runtime type checking and 'downward' casting. Implements SoField. void SoSFImage3::copyFrom (const SoField & f) [virtual] Copy value(s) from f into this field. f must be of the same type as this field. Implements SoField. SbBool SoSFImage3::isSame (const SoField & f) const [virtual] Check for equal type and value(s). Implements SoField. void SoSFImage3::initClass (void) [static] Internal method called upon initialization of the library (from SoDB::init()) to set up the type system. const unsigned char * SoSFImage3::getValue (SbVec3s & size, int & nc) const Return pixel buffer, set size to contain the image dimensions and nc to the number of components in the image. void SoSFImage3::setValue (const SbVec3s & size, const int nc, const unsigned char * bytes) Initialize this field to size and nc. If bytes is not NULL, the image data is copied from bytes into this field. If bytes is NULL, the image data is cleared by setting all bytes to 0 (note that the behavior on passing a NULL pointer is specific for Coin, Open Inventor will crash if you try it). int SoSFImage3::operator== (const SoSFImage3 & field) const Compare image of field with the image in this field and return TRUE if they are equal. int SoSFImage3::operator!= (const SoSFImage3 & field) const [inline] Compare image of field with the image in this field and return FALSE if they are equal. unsigned char * SoSFImage3::startEditing (SbVec3s & size, int & nc) Return pixel buffer, set size to contain the image dimensions and nc to the number of components in the image. The field's container will not be notified about the changes until you call finishEditing(). void SoSFImage3::finishEditing (void) Notify the field's auditors that the image data have been modified. Author Generated automatically by Doxygen for Coin from the source code. Version 4.0.2 Tue Dec 26 2023 17:59:22 SoSFImage3(3)