The application must allocate the memory for the output array jointVelocities that can contain at least jointCount of XrHandJointVelocityEXT.
The application must input jointCount as described by the XrHandJointSetEXT when creating the XrHandTrackerEXT. Otherwise, the runtime must return ERROR_VALIDATION_FAILURE.
The runtime must update the jointVelocities array in the order so that the application can index elements using the corresponding hand joint enum (e.g. XrHandJointEXT) as described by the XrHandJointSetEXT when creating the XrHandTrackerEXT. For example, when the XrHandTrackerEXT is created with HAND_JOINT_SET_DEFAULT_EXT, the application must set the jointCount to HAND_JOINT_COUNT_EXT, and the returned jointVelocities array must be ordered to be indexed by enum XrHandJointEXT enum.
If the returned XrHandJointLocationsEXT::isActive is false, it indicates the hand tracker did not detect a hand input or the application lost input focus. In this case, the runtime must return all jointVelocities with neither SPACE_VELOCITY_LINEAR_VALID_BIT nor SPACE_VELOCITY_ANGULAR_VALID_BIT set.
If an XrHandJointVelocitiesEXT structure is chained to XrHandJointLocationsEXT::next, the returned XrHandJointLocationsEXT::isActive is true, and the velocity is observed or can be calculated by the runtime, the runtime must fill in the linear velocity of each hand joint within the reference frame of baseSpace and set the SPACE_VELOCITY_LINEAR_VALID_BIT. Similarly, if an XrHandJointVelocitiesEXT structure is chained to XrHandJointLocationsEXT::next, the returned XrHandJointLocationsEXT::isActive is true, and the angular velocity is observed or can be calculated by the runtime, the runtime must fill in the angular velocity of each joint within the reference frame of baseSpace and set the SPACE_VELOCITY_ANGULAR_VALID_BIT.
XR_EXT_hand_tracking extension must be enabled prior to using XrHandJointVelocitiesEXTtype must be TYPE_HAND_JOINT_VELOCITIES_EXTnext must be NULL or a valid pointer to the next structure in a structure chainjointVelocities must be a pointer to an array of jointCount XrHandJointVelocityEXT structuresjointCount parameter must be greater than 0XrHandJointLocationsEXT, XrHandJointVelocityEXT
struct XrHandJointVelocitiesEXT {
XrStructureType type;
void * next;
uint32_t jointCount;
XrHandJointVelocityEXT * jointVelocities;
}
| Modifier and Type | Class and Description |
|---|---|
| public static class | XrHandJointVelocitiesEXT.
An array of |
| Modifier and Type | Field and Description |
|---|---|
| public static final int | ALIGNOF
The struct alignment in bytes. |
| public static final int | JOINTCOUNT
The struct member offsets. |
| public static final int | JOINTVELOCITIES
The struct member offsets. |
| public static final int | NEXT
The struct member offsets. |
| public static final int | SIZEOF
The struct size in bytes. |
| public static final int | TYPE
The struct member offsets. |
| Access | Constructor and Description |
|---|---|
| protected | |
| public | XrHandJointVelocitiesEXT(ByteBuffer container)
Creates a |
| Modifier and Type | Method and Description |
|---|---|
| public static XrHandJointVelocitiesEXT | |
| public static XrHandJointVelocitiesEXT. | calloc(int
the buffer capacity capacity)Returns a new |
| public static XrHandJointVelocitiesEXT | calloc(MemoryStack
the stack from which to allocate stack)Returns a new |
| public static XrHandJointVelocitiesEXT. | calloc(int
the buffer capacity capacity, MemoryStack the stack from which to allocate stack)Returns a new |
| protected XrHandJointVelocitiesEXT | create(long
the struct memory address address, ByteBuffer an optional container buffer, to be referenced strongly by the struct instance. container)Implements abstract org. the constructor, but returns the exact type of the Struct subclass.
|
| public static XrHandJointVelocitiesEXT | |
| public static XrHandJointVelocitiesEXT | create(long address)
Returns a new |
| public static XrHandJointVelocitiesEXT. | create(int
the buffer capacity capacity)Returns a new |
| public static XrHandJointVelocitiesEXT. | create(long
the memory address address, int the buffer capacity capacity)Create a |
| public static XrHandJointVelocitiesEXT | |
| public static XrHandJointVelocitiesEXT. | |
| public int | |
| public XrHandJointVelocityEXT. | |
| public XrHandJointVelocitiesEXT | jointVelocities(XrHandJointVelocityEXT.
Sets the address of the specified |
| public static XrHandJointVelocitiesEXT | |
| public static XrHandJointVelocitiesEXT. | malloc(int
the buffer capacity capacity)Returns a new |
| public static XrHandJointVelocitiesEXT | malloc(MemoryStack
the stack from which to allocate stack)Returns a new |
| public static XrHandJointVelocitiesEXT. | malloc(int
the buffer capacity capacity, MemoryStack the stack from which to allocate stack)Returns a new |
| public long | |
| public XrHandJointVelocitiesEXT | |
| public static int | |
| public static void | njointCount(long struct, int value)
Sets the specified value to the |
| public static XrHandJointVelocityEXT. | |
| public static void | njointVelocities(long struct, XrHandJointVelocityEXT.
Unsafe version of |
| public static long | |
| public static void | |
| public static int | |
| public static void | |
| public XrHandJointVelocitiesEXT | set(int type, long next, XrHandJointVelocityEXT.
Initializes this struct with the specified values. |
| public XrHandJointVelocitiesEXT | Returns: this structthe source struct src)Copies the specified struct data to this struct. |
| public int | |
| public int | |
| public XrHandJointVelocitiesEXT | |
| public XrHandJointVelocitiesEXT | |
| public static void |
| ALIGNOF | back to summary |
|---|---|
| public static final int ALIGNOF The struct alignment in bytes. | |
| JOINTCOUNT | back to summary |
|---|---|
| public static final int JOINTCOUNT The struct member offsets. | |
| JOINTVELOCITIES | back to summary |
|---|---|
| public static final int JOINTVELOCITIES The struct member offsets. | |
| NEXT | back to summary |
|---|---|
| public static final int NEXT The struct member offsets. | |
| SIZEOF | back to summary |
|---|---|
| public static final int SIZEOF The struct size in bytes. | |
| TYPE | back to summary |
|---|---|
| public static final int TYPE The struct member offsets. | |
| XrHandJointVelocitiesEXT | back to summary |
|---|---|
| protected XrHandJointVelocitiesEXT(long address, ByteBuffer container) | |
| XrHandJointVelocitiesEXT | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT(ByteBuffer container) Creates a The created instance holds a strong reference to the container object. | |
| calloc | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT calloc() Returns a new | |
| calloc | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT. Returns a new
| |
| calloc | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT calloc(MemoryStack stack) Returns a new
| |
| calloc | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT. Returns a new
| |
| create | back to summary |
|---|---|
| protected XrHandJointVelocitiesEXT create(long address, ByteBuffer container) Implements abstract org. Doc from org. Similar to Effectively, every
| |
| create | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT create() Returns a new | |
| create | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT create(long address) Returns a new | |
| create | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT. Returns a new
| |
| create | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT. Create a
| |
| createSafe | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT createSafe(long address) Like
| |
| createSafe | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT. Like
| |
| jointCount | back to summary |
|---|---|
| public int jointCount() a
| |
| jointVelocities | back to summary |
|---|---|
| public XrHandJointVelocityEXT. an array of
| |
| jointVelocities | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT jointVelocities(XrHandJointVelocityEXT. Sets the address of the specified | |
| malloc | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT malloc() Returns a new | |
| malloc | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT. Returns a new
| |
| malloc | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT malloc(MemoryStack stack) Returns a new
| |
| malloc | back to summary |
|---|---|
| public static XrHandJointVelocitiesEXT. Returns a new
| |
| next | back to summary |
|---|---|
| public long next()
| |
| next | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT next(long value) Sets the specified value to the | |
| njointCount | back to summary |
|---|---|
| public static int njointCount(long struct) Unsafe version of | |
| njointCount | back to summary |
|---|---|
| public static void njointCount(long struct, int value) Sets the specified value to the | |
| njointVelocities | back to summary |
|---|---|
| public static XrHandJointVelocityEXT. Unsafe version of | |
| njointVelocities | back to summary |
|---|---|
| public static void njointVelocities(long struct, XrHandJointVelocityEXT. Unsafe version of | |
| nnext | back to summary |
|---|---|
| public static long nnext(long struct) Unsafe version of | |
| nnext | back to summary |
|---|---|
| public static void nnext(long struct, long value) Unsafe version of | |
| ntype | back to summary |
|---|---|
| public static int ntype(long struct) Unsafe version of | |
| ntype | back to summary |
|---|---|
| public static void ntype(long struct, int value) Unsafe version of | |
| set | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT set(int type, long next, XrHandJointVelocityEXT. Initializes this struct with the specified values. | |
| set | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT set(XrHandJointVelocitiesEXT src) Copies the specified struct data to this struct.
| |
| sizeof | back to summary |
|---|---|
| public int sizeof() Implements abstract org. Doc from org. Returns
| |
| type | back to summary |
|---|---|
| public int type() the
| |
| type | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT type(int value) Sets the specified value to the | |
| type$Default | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT type$Default() Sets the | |
| validate | back to summary |
|---|---|
| public static void validate(long struct) Validates pointer members that should not be
| |
XrHandJointVelocitiesEXT structs.
| Modifier and Type | Field and Description |
|---|---|
| private static final XrHandJointVelocitiesEXT |
| Access | Constructor and Description |
|---|---|
| public | Buffer(ByteBuffer container)
Creates a new |
| public | |
| pack-priv |
| Modifier and Type | Method and Description |
|---|---|
| protected XrHandJointVelocitiesEXT | |
| public int | |
| public XrHandJointVelocityEXT. | Returns: aXrHandJointVelocityEXT. view of the struct array pointed to by the XrHandJointVelocitiesEXT#jointVelocities field.
|
| public XrHandJointVelocitiesEXT. | jointVelocities(XrHandJointVelocityEXT.
Sets the address of the specified |
| public long | |
| public XrHandJointVelocitiesEXT. | |
| protected XrHandJointVelocitiesEXT. | |
| public int | |
| public XrHandJointVelocitiesEXT. | |
| public XrHandJointVelocitiesEXT. | type$Default()
Sets the |
| ELEMENT_FACTORY | back to summary |
|---|---|
| private static final XrHandJointVelocitiesEXT ELEMENT_FACTORY | |
| Buffer | back to summary |
|---|---|
| public Buffer(ByteBuffer container) Creates a new Changes to the container's content will be visible to the struct buffer instance and vice versa. The two buffers' position, limit, and mark values
will be independent. The new buffer's position will be zero, its capacity and its limit will be the number of bytes remaining in this buffer divided
by The created buffer instance holds a strong reference to the container object. | |
| Buffer | back to summary |
|---|---|
| public Buffer(long address, int cap) | |
| Buffer | back to summary |
|---|---|
| pack-priv Buffer(long address, ByteBuffer container, int mark, int pos, int lim, int cap) | |
| getElementFactory | back to summary |
|---|---|
| protected XrHandJointVelocitiesEXT getElementFactory() Implements abstract org.
| |
| jointCount | back to summary |
|---|---|
public int jointCount()
| |
| jointVelocities | back to summary |
|---|---|
public XrHandJointVelocityEXT.
| |
| jointVelocities | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT. Sets the address of the specified | |
| next | back to summary |
|---|---|
public long next()
| |
| next | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT. Sets the specified value to the | |
| self | back to summary |
|---|---|
| protected XrHandJointVelocitiesEXT. Implements abstract org.
| |
| type | back to summary |
|---|---|
public int type()
| |
| type | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT. Sets the specified value to the | |
| type$Default | back to summary |
|---|---|
| public XrHandJointVelocitiesEXT. Sets the | |