Transform

zng::layout

Struct Transform 

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pub struct Transform { /* private fields */ }
Expand description

A transform builder type.

§Builder

The transform can be started by one of Transform::new_* associated functions or Transform::identity. More transforms can be chained by calling the methods for each.

§Examples

Create a transform that

let rotate_then_move = Transform::new_rotate(10.deg()).translate(50, 30);

Implementations§

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impl Transform

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pub fn identity() -> Transform

No transform.

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pub fn new_rotate<A>(angle: A) -> Transform
where A: Into<AngleRadian>,

Create a 2d rotation transform.

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pub fn new_rotate_x<A>(angle: A) -> Transform
where A: Into<AngleRadian>,

Create a 3d rotation transform around the x axis.

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pub fn new_rotate_y<A>(angle: A) -> Transform
where A: Into<AngleRadian>,

Create a 3d rotation transform around the y axis.

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pub fn new_rotate_z<A>(angle: A) -> Transform
where A: Into<AngleRadian>,

Same as new_rotate.

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pub fn new_rotate_3d<A>(x: f32, y: f32, z: f32, angle: A) -> Transform
where A: Into<AngleRadian>,

Create a 3d rotation transform.

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pub fn new_translate<X, Y>(x: X, y: Y) -> Transform
where X: Into<Length>, Y: Into<Length>,

Create a 2d translation transform.

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pub fn new_translate_3d<X, Y, Z>(x: X, y: Y, z: Z) -> Transform
where X: Into<Length>, Y: Into<Length>, Z: Into<Length>,

Create a 3d translation transform.

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pub fn new_translate_x<X>(x: X) -> Transform
where X: Into<Length>,

Create a 2d translation transform in the X dimension.

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pub fn new_translate_y<Y>(y: Y) -> Transform
where Y: Into<Length>,

Create a 2d translation transform in the Y dimension.

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pub fn new_translate_z<Z>(z: Z) -> Transform
where Z: Into<Length>,

Create a 3d translation transform in the z dimension.

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pub fn new_perspective<D>(d: D) -> Transform
where D: Into<Length>,

Create a 3d perspective transform.

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pub fn new_skew<X, Y>(x: X, y: Y) -> Transform
where X: Into<AngleRadian>, Y: Into<AngleRadian>,

Create a 2d skew transform.

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pub fn new_skew_x<X>(x: X) -> Transform
where X: Into<AngleRadian>,

Create a 2d skew transform in the X dimension.

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pub fn new_skew_y<Y>(y: Y) -> Transform
where Y: Into<AngleRadian>,

Create a 2d skew transform in the Y dimension.

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pub fn new_scale<S>(scale: S) -> Transform
where S: Into<Factor>,

Create a 2d scale transform.

The same scale is applied to both dimensions.

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pub fn new_scale_x<X>(x: X) -> Transform
where X: Into<Factor>,

Create a 2d scale transform on the X dimension.

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pub fn new_scale_y<Y>(y: Y) -> Transform
where Y: Into<Factor>,

Create a 2d scale transform on the Y dimension.

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pub fn new_scale_xy<X, Y>(x: X, y: Y) -> Transform
where X: Into<Factor>, Y: Into<Factor>,

Create a 2d scale transform.

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impl Transform

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pub fn then(self, other: Transform) -> Transform

Change self to apply other after its transformation.

§Examples
Transform::new_rotate(10.deg()).then(Transform::new_translate(50, 30));

Is the equivalent of:

Transform::new_rotate(10.deg()).translate(50, 30);
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pub fn rotate<A>(self, angle: A) -> Transform
where A: Into<AngleRadian>,

Change self to apply a 2d rotation after its transformation.

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pub fn rotate_x<A>(self, angle: A) -> Transform
where A: Into<AngleRadian>,

Change self to apply a 3d rotation around the x axis.

Note that the composition of 3D rotations is usually not commutative, so the order this is applied will affect the result.

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pub fn rotate_y<A>(self, angle: A) -> Transform
where A: Into<AngleRadian>,

Change self to apply a 3d rotation around the y axis.

Note that the composition of 3D rotations is usually not commutative, so the order this is applied will affect the result.

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pub fn rotate_z<A>(self, angle: A) -> Transform
where A: Into<AngleRadian>,

Same as rotate.

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pub fn rotate_3d<A>(self, x: f32, y: f32, z: f32, angle: A) -> Transform
where A: Into<AngleRadian>,

Change self to apply a 3d rotation.

Note that the composition of 3D rotations is usually not commutative, so the order this is applied will affect the result.

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pub fn translate<X, Y>(self, x: X, y: Y) -> Transform
where X: Into<Length>, Y: Into<Length>,

Change self to apply a 2d translation after its transformation.

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pub fn translate_x<X>(self, x: X) -> Transform
where X: Into<Length>,

Change self to apply a x translation after its transformation.

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pub fn translate_y<Y>(self, y: Y) -> Transform
where Y: Into<Length>,

Change self to apply a y translation after its transformation.

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pub fn translate_z<Z>(self, z: Z) -> Transform
where Z: Into<Length>,

Change self to apply a z translation after its transformation.

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pub fn translate_3d<X, Y, Z>(self, x: X, y: Y, z: Z) -> Transform
where X: Into<Length>, Y: Into<Length>, Z: Into<Length>,

Change self to apply a 3d translation after its transformation.

Note that the composition of 3D rotations is usually not commutative, so the order this is applied will affect the result.

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pub fn skew<X, Y>(self, x: X, y: Y) -> Transform
where X: Into<AngleRadian>, Y: Into<AngleRadian>,

Change self to apply a 2d skew after its transformation.

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pub fn skew_x<X>(self, x: X) -> Transform
where X: Into<AngleRadian>,

Change self to apply a x skew after its transformation.

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pub fn skew_y<Y>(self, y: Y) -> Transform
where Y: Into<AngleRadian>,

Change self to apply a y skew after its transformation.

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pub fn scale_xy<X, Y>(self, x: X, y: Y) -> Transform
where X: Into<Factor>, Y: Into<Factor>,

Change self to apply a 2d scale after its transformation.

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pub fn scale_x<X>(self, x: X) -> Transform
where X: Into<Factor>,

Change self to apply a x scale after its transformation.

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pub fn scale_y<Y>(self, y: Y) -> Transform
where Y: Into<Factor>,

Change self to apply a y scale after its transformation.

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pub fn scale<S>(self, scale: S) -> Transform
where S: Into<Factor>,

Change self to apply a uniform 2d scale after its transformation.

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pub fn perspective<D>(self, d: D) -> Transform
where D: Into<Length>,

Change self 3d perspective distance.

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impl Transform

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pub fn layout(&self) -> PxTransform

Compute a PxTransform in the current LAYOUT context.

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pub fn try_layout(&self) -> Option<PxTransform>

Compute a PxTransform if it is not affected by the layout context.

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pub fn needs_layout(&self) -> bool

Returns true if this transform is affected by the layout context where it is evaluated.

Trait Implementations§

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impl Clone for Transform

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fn clone(&self) -> Transform

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Transform

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

Formats the value using the given formatter. Read more
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impl Default for Transform

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fn default() -> Transform

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for Transform

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fn deserialize<__D>( __deserializer: __D, ) -> Result<Transform, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl From<PxTransform> for Transform

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fn from(t: PxTransform) -> Transform

Converts to this type from the input type.
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impl IntoVar<Transform> for PxTransform

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fn into_var(self) -> Var<Transform>

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impl Layout2d for Transform

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type Px = PxTransform

Pixel type.
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fn layout_dft( &self, _: <Transform as Layout2d>::Px, ) -> <Transform as Layout2d>::Px

Compute the pixel value in the current LAYOUT context with default.
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fn affect_mask(&self) -> LayoutMask

Compute a LayoutMask that flags all contextual values that affect the result of layout.
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fn layout(&self) -> Self::Px

Compute the pixel value in the current LAYOUT context.
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impl PartialEq for Transform

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl Transitionable for Transform

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fn lerp(self, to: &Transform, step: Factor) -> Transform

Sample the linear interpolation from self -> to by step.
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impl IntoValue<Transform> for PxTransform

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impl StructuralPartialEq for Transform

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