Struct KeyframeAnimation 

pub struct KeyframeAnimation { /* private fields */ }

Holds keyframe animation data as a PointCloud.

The first attribute is always the timestamp track. Each additional attribute is one keyframe track with the same number of frames.

Implementations

impl KeyframeAnimation

pub fn new() -> Self

Creates an empty keyframe animation.

pub fn from_point_cloud(point_cloud: PointCloud) -> Self

Wraps an existing point cloud (e.g. a freshly decoded one).

pub fn num_frames(&self) -> i32

Returns the number of animation frames (equal to the point count).

pub fn set_num_frames(&mut self, num_frames: i32)

Sets the number of animation frames (equal to the point count).

pub fn num_animations(&self) -> i32

Returns the number of keyframe tracks (attributes minus the timestamp).

pub fn set_timestamps(&mut self, timestamps: &[f32]) -> bool

Sets the per-frame timestamps. Must be called only once, before any keyframe data is added unless a track was added first.

Returns false if a timestamp track already holds data or if the frame count is inconsistent with previously added keyframes. Mirrors C++ KeyframeAnimation::SetTimestamps.

pub fn add_keyframes<T: NoUninit>( &mut self, data_type: DataType, num_components: u32, data: &[T], ) -> i32

Adds one keyframe track and returns its animation id, or -1 on error.

num_components is the number of scalar components per frame, and data holds num_components * num_frames values laid out frame-major. Mirrors C++ KeyframeAnimation::AddKeyframes.

pub fn timestamps(&self) -> Option<&PointAttribute>

Returns the timestamp track, if present.

pub fn keyframes(&self, animation_id: i32) -> Option<&PointAttribute>

Returns the keyframe track identified by animation_id, if present.

pub fn point_cloud(&self) -> &PointCloud

Returns the underlying point cloud.

pub fn into_point_cloud(self) -> PointCloud

Consumes the animation, returning the underlying point cloud.

Trait Implementations

impl Clone for KeyframeAnimation

fn clone(&self) -> KeyframeAnimation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for KeyframeAnimation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for KeyframeAnimation

fn default() -> KeyframeAnimation

Returns the “default value” for a type.