SoSelectOne.3iv man page

SoSelectOne — selects one value from a multiple-value field.

Inherits from

SoBase > SoFieldContainer > SoEngine > SoSelectOne


#include <Inventor/engines/SoSelectOne.h>

Inputs from class SoSelectOne:

SoSFInt32 index

<inputType> input

Outputs from class SoSelectOne:

(<outputType>) output

Methods from class SoSelectOne:

SoSelectOne(SoType inputType)

Methods from class SoEngine:

static SoType getClassTypeId()

virtual int getOutputs(SoEngineOutputList &list) const

SoEngineOutput * getOutput(const SbName &outputName) const

SbBool getOutputName(const SoEngineOutput *output, SbName &outputName) const

SoEngine * copy() const

static SoEngine * getByName(const SbName &name)

static int getByName(const SbName &name, SoEngineList &list)

Methods from class SoFieldContainer:

void setToDefaults()

SbBool hasDefaultValues() const

SbBool fieldsAreEqual(const SoFieldContainer *fc) const

void copyFieldValues(const SoFieldContainer *fc, SbBool copyConnections = FALSE)

SbBool set(const char *fieldDataString)

void get(SbString &fieldDataString)

virtual int getFields(SoFieldList &resultList) const

virtual SoField * getField(const SbName &fieldName) const

SbBool getFieldName(const SoField *field, SbName &fieldName) const

SbBool isNotifyEnabled() const

SbBool enableNotify(SbBool flag)

Methods from class SoBase:

void ref()

void unref() const

void unrefNoDelete() const

void touch()

virtual SoType getTypeId() const

SbBool isOfType(SoType type) const

virtual void setName(const SbName &name)

virtual SbName getName() const


This engine selects a single value from a multiple-value field, based on the input field index. The type of the input field can be any subclass of SoMField, and the type of the output is the corresponding subclass of SoSField. For example, if the input type is SoMFVec3f, the output type will be SoSFVec3f. The type is specified when an instance of the class is created. For example, SoSelectOne(SoMFFloat::getClassTypeId()) creates an engine that selects one floating-point value.

Note that unlike most other engine fields, the input field and output are pointers. Note also that by default input does not contain any values, and no value is output from the engine.


SoSFInt32 index
Index of the value to select from the multiple-value field.

<inputType> input
The multiple-value field from which the value will be selected.


(<outputType>) output
The single value selected.


SoSelectOne(SoType inputType)
Constructor. The argument specifies the type of the multiple-value input field.

File Format/Defaults

SelectOne {
type	<inputType>
input	[]
index	0

See Also

SoEngineOutput, SoConcatenate, SoGate