# Unigine::Plugins::UltraleapBone Class (CPP)

**Header:** #include <plugins/Unigine/Ultraleap/UnigineUltraleap.h>


This class represents a [bone](../../../../code/plugins/ultraleap/index_cpp.md#bones) of a [finger](../../../../api/library/plugins/ultraleap/class.ultraleapfinger_cpp.md).


> **Notice:** [Ultraleap](../../../../code/plugins/ultraleap/index_cpp.md) plugin must be loaded.


## UltraleapBone Class

### Enums

## TYPE

| Name | Description |
|---|---|
| **TYPE_METACARPAL** = 0 | Metacarpal [bone](../../../../code/plugins/ultraleap/index_cpp.md#bones). |
| **TYPE_PROXIMAL** = 1 | Proximal phalange [bone](../../../../code/plugins/ultraleap/index_cpp.md#bones). |
| **TYPE_INTERMEDIATE** = 2 | Intermediate phalange [bone](../../../../code/plugins/ultraleap/index_cpp.md#bones). |
| **TYPE_DISTAL** = 3 | Distal phalange [bone](../../../../code/plugins/ultraleap/index_cpp.md#bones). A bone at the tip of the finger. |
| **NUM_TYPES** = 4 | Total number of bone types. |

### Members

## UltraleapFinger * getFinger () const

Returns the current object for the finger.
### Return value

Current object for the finger
## UltraleapBone::TYPE getType () const

Returns the current type of the bone. One of the [TYPE_*](#TYPE_METACARPAL) values.
### Return value

Current type of the bone
## double getLength () const

Returns the current length of the bone, in meters.
### Return value

Current length of the bone, in meters
## double getWidth () const

Returns the current width of the bone, in meters.
### Return value

Current width of the bone, in meters
## Math:: Vec3 getJointBeginPosition () const

Returns the current coordinates of the end of the bone closest to the wrist (proximal).
### Return value

Current coordinates of the end of the bone closest to the wrist (proximal)
## Math:: Vec3 getJointEndPosition () const

Returns the current coordinates of the end of the bone closest to the finger tip (distal).
### Return value

Current coordinates of the end of the bone closest to the finger tip (distal)
## Math:: Vec3 getCenter () const

Returns the current coordinates of the center of the bone.
### Return value

Current coordinates of the center of the bone
## Math:: vec3 getDirection () const

Returns the current normalized direction of the bone from wrist to tip.
### Return value

Current normalized direction of the bone from wrist to tip