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SoSField(3) Library Functions Manual SoSField(3)

NAME

SoSField - The SoSField class is the base class for fields which contains only a single value.

SYNOPSIS

#include <Inventor/fields/SoSField.h>

Inherits SoField.

Inherited by SoSFBool, SoSFBox2d, SoSFBox2f, SoSFBox2i32, SoSFBox2s, SoSFBox3d, SoSFBox3f, SoSFBox3i32, SoSFBox3s, SoSFColor, SoSFColorRGBA, SoSFDouble, SoSFEngine, SoSFEnum, SoSFFloat, SoSFImage, SoSFImage3, SoSFInt32, SoSFMatrix, SoSFName, SoSFNode, SoSFPath, SoSFPlane, SoSFRotation, SoSFShort, SoSFString, SoSFTime, SoSFTrigger, SoSFUInt32, SoSFUShort, SoSFVec2b, SoSFVec2d, SoSFVec2f, SoSFVec2i32, SoSFVec2s, SoSFVec3b, SoSFVec3d, SoSFVec3f, SoSFVec3i32, SoSFVec3s, SoSFVec4b, SoSFVec4d, SoSFVec4f, SoSFVec4i32, SoSFVec4s, SoSFVec4ub, SoSFVec4ui32, and SoSFVec4us.

Public Member Functions


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
virtual SoType getTypeId (void) const =0
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 SbBool isSame (const SoField &f) const =0
virtual void copyFrom (const SoField &f)=0
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 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)

Protected Member Functions


SoSField (void)

Protected Member Functions inherited from SoField
SoField (void)
void valueChanged (SbBool resetdefault=TRUE)
virtual void evaluateConnection (void) const
virtual SbBool readValue (SoInput *in)=0
virtual void writeValue (SoOutput *out) const =0
virtual SbBool readConnection (SoInput *in)
virtual void writeConnection (SoOutput *out) const
SbBool isDestructing (void) const

Additional Inherited Members

Public Types inherited from SoField
enum FieldType { NORMAL_FIELD = 0, EVENTIN_FIELD, EVENTOUT_FIELD, EXPOSED_FIELD }

Detailed Description

The SoSField class is the base class for fields which contains only a single value.

All field types which should always contain only a single member value inherits this class. SoSField is an abstract class.

You use methods setValue() and getValue() to store or fetch the value of single-value fields. Example:

SoSpotLight * lightnode = new SoSpotLight;
lightnode->on.setValue(TRUE); // The "on" field of SoSpotLight is


                              // a single value field of type SoSFBool.
...
...
// Change lightswitch.
if (lightnode->on.getValue() == FALSE)


  lightnode->on = TRUE; // We can use operator = instead of setValue().
else


  lightnode->on = FALSE;
...

When nodes, engines or other types of field containers are written to file, their single-value fields are written to file in this format:

containerclass {


  fieldname value


  fieldname value


  ...
}

..like this, for instance, a SpotLight node from a scene graph which will be default off when read back from file:

SpotLight {


  on FALSE
}

See also

SoMField

Constructor & Destructor Documentation

SoSField::~SoSField () [virtual]

The SoSField destructor is empty, and is only defined so we could make it virtual.

SoSField::SoSField (void) [protected]

The SoSField constructor is protected, as this is an abstract class.

Author

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Version 3.1.3 Coin