Struct TextureTransform 

pub struct TextureTransform {
    pub offset: [f32; 2],
    pub scale: [f32; 2],
    pub rotation: f32,
    pub tile_mode: TileMode,
    pub flip_x: bool,
    pub flip_y: bool,
}

Affine transform applied to the texture sample before lookup.

Lets a single texture pan, scale, rotate, tile, and flip independently of the shape it fills. Use for scrolling marquees inside a shape, zooming detail, rotating an icon without rotating the shape, repeating tile art, and mirroring asymmetric assets.

The transform applies to the bounding-box UV in [0, 1] coordinates, centred at (0.5, 0.5) for scale and rotation. When NineSlice is also set on the same shape, the 9-slice remap wins and the texture transform is ignored.

Fields

offset: [f32; 2]

UV offset added after scale and rotation. [0.0, 0.0] keeps the sample centred. Drives panning / scrolling.

scale: [f32; 2]

UV scale multiplier applied around the centre. [1.0, 1.0] is 1:1. Larger values widen the sampled UV range (more tiles with TileMode::Tile, or a wider view of the source with Stretch or Mirror). Smaller values zoom in.

rotation: f32

Rotation around the UV centre (0.5, 0.5) in radians, CCW in math coordinates.

tile_mode: TileMode

Sampling mode for UV values outside [0, 1]. Stretch clamps to the edge (default), Tile wraps, Mirror ping-pongs.

flip_x: bool

Flip the sample horizontally before lookup.

flip_y: bool

Flip the sample vertically before lookup.

Implementations

impl TextureTransform

pub fn is_identity(&self) -> bool

Returns true when the transform is the identity (no offset, unit scale, no rotation, no flips, Stretch mode).

Trait Implementations

impl Clone for TextureTransform

fn clone(&self) -> TextureTransform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TextureTransform

impl Debug for TextureTransform

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

Formats the value using the given formatter.

impl Default for TextureTransform

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for TextureTransform

fn eq(&self, other: &TextureTransform) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TextureTransform