Struct GizmoDrag 

pub struct GizmoDrag {
    pub axis: GizmoAxis,
    pub mode: GizmoMode,
    pub direction: Vec3,
    pub pivot: Vec3,
    /* private fields */
}

A manipulation in progress: one grabbed handle, tracked across frames.

Fields

axis: GizmoAxis

The grabbed handle.

mode: GizmoMode

The tool the drag was started with.

direction: Vec3

World-space direction of the grabbed handle, captured at grab time so a rotating object cannot move the axis out from under the cursor.

pivot: Vec3

World-space centre of the manipulator.

Implementations

impl GizmoDrag

pub fn begin( mode: GizmoMode, axis: GizmoAxis, pivot: Vec3, basis: &[Vec3; 3], size: f32, ray: &Ray, ) -> Option<GizmoDrag>

Grabs axis at the cursor ray, if the ray yields a usable parameter.

pub fn update(&mut self, ray: &Ray) -> Option<GizmoDelta>

Advances the drag to a new cursor ray.

Returns None when the ray no longer yields a usable parameter — the cursor is edge-on to the rotation plane, or parallel to the axis. The caller should hold the last delta rather than snapping the entity.

Trait Implementations

impl Clone for GizmoDrag

fn clone(&self) -> GizmoDrag

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GizmoDrag

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

Formats the value using the given formatter.

impl Copy for GizmoDrag