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SoRotor(3IV)() SoRotor(3IV)()


SoRotor — animated rotation node


SoBase > SoFieldContainer > SoNode > SoTransformation > SoRotation > SoRotor


#include <Inventor/nodes/SoRotor.h>

Fields from class SoRotor:

SoSFFloat speed

SoSFBool on

Fields from class SoRotation:

SoSFRotation rotation

Methods from class SoRotor:


static SoType getClassTypeId()

Methods from class SoNode:

void setOverride(SbBool state)

SbBool isOverride() const

SoNode * copy(SbBool copyConnections = FALSE) const

virtual SbBool affectsState() const

static SoNode * getByName(const SbName &name)

static int getByName(const SbName &name, SoNodeList &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


The SoRotor class is derived from SoRotation, so it applies a rotation to the current transformation. Using engines connected to the realTime global field, the rotation value is animated over time, achieving a spinning effect. The period of the rotation can be adjusted by changing the speed field.

The current rotation at any time is available in the rotation field, inherited from SoRotation. This field can also be set to specify the axis of rotation. Note that unless a non-zero rotation is specified for the rotation, the node will not know which axis to use. For example, to set a rotor to spin about the y-axis, use the following:

rotor->rotation.setValue(axis, 0.1);

where axis is a vector containing (0,1,0). Any non-zero angle can be used in this code.


SoSFFloat speed

Defines the speed of the rotor, in revolutions per second.

SoSFBool on

Allows applications to enable or disable the motion easily.



Creates a rotor node with default settings.

static SoType getClassTypeId()

Returns type identifier for this class.


SoGLRenderAction, SoCallbackAction, SoGetBoundingBoxAction, SoRayPickAction

Concatenates current rotation value with the current transformation matrix.


Returns transformation matrix specified by the rotation.


Rotor {

rotation 0 0 1 0 speed 1 on TRUE


SoPendulum, SoShuttle