SoFieldSensor

java.lang.Object
- com.openinventor.inventor.Inventor
- - com.openinventor.inventor.sensors.SoSensor
  - - com.openinventor.inventor.sensors.SoDelayQueueSensor
    - - com.openinventor.inventor.sensors.SoDataSensor
      - com.openinventor.inventor.sensors.SoFieldSensor

```
public class SoFieldSensor
extends SoDataSensor
```
Sensor class that can be attached to Open Inventor fields. Field sensors detect changes to fields, calling a callback function whenever the field changes. The field may be part of a node, an input of an engine, or a global field.
See SoDataSensor for general information and code example.

See Also:

SoNodeSensor, SoPathSensor, SoDataSensor

Nested Class Summary
- Nested classes/interfaces inherited from class com.openinventor.inventor.sensors.SoDataSensor
  SoDataSensor.ChangeTypes
- Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor
  Inventor.ConstructorCommand

Field Summary
- Fields inherited from class com.openinventor.inventor.Inventor
  VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors
Constructor	Description
`SoFieldSensor()`	Constructor.
`SoFieldSensor(java.lang.Runnable task)`	Builds a new field sensor with the task to be executed when the sensor is triggered.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`attach(SoField field)`	The `attach()` method makes this sensor detect changes to the given field.
`void`	`detach()`	The `detach()` method unschedules this sensor (if it is scheduled) and makes it ignore changes to the scene graph.
`SoField`	`getAttachedField()`	The `getAttachedField()` method returns the field that this sensor is sensing, or NULL if it is not attached to any field.

Methods inherited from class com.openinventor.inventor.sensors.SoDataSensor
getTriggerChild, getTriggerChildIndex, getTriggerFastEditInfo, getTriggerFastEditInfoFlag, getTriggerField, getTriggerMFieldNumValues, getTriggerMFieldStartIndex, getTriggerNode, getTriggerPath, getTriggerPathFlag, getTriggerType, setFinalTask, setTriggerFastEditInfoFlag, setTriggerPathFlag

Methods inherited from class com.openinventor.inventor.sensors.SoDelayQueueSensor
getDefaultPriority, getPriority, isIdleOnly, setPriority

Methods inherited from class com.openinventor.inventor.sensors.SoSensor
isScheduled, schedule, setTask, unschedule

Methods inherited from class com.openinventor.inventor.Inventor
dispose, getNativeResourceHandle

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SoFieldSensor
```
public SoFieldSensor(java.lang.Runnable task)
```
    Builds a new field sensor with the task to be executed when the sensor is triggered.
  - SoFieldSensor
```
public SoFieldSensor()
```
    Constructor.
- Method Detail
  - detach
```
public void detach()
```
    The detach() method unschedules this sensor (if it is scheduled) and makes it ignore changes to the scene graph. See also attach(), getAttachedField()
  - getAttachedField
```
public SoField getAttachedField()
```
    The getAttachedField() method returns the field that this sensor is sensing, or NULL if it is not attached to any field. See also attach(), detach()
  - attach
```
public void attach(SoField field)
```
    The attach() method makes this sensor detect changes to the given field. See also detach(), getAttachedField()