# [−][src]Struct footile::Transform

`pub struct Transform { /* fields omitted */ }`

An affine transform can translate, scale, rotate and skew 2D points.

A series of transforms can be combined into a single Transform struct. This can be used by a Plotter to alter subsequent points.

# Example

```use footile::Transform;
const PI: f32 = std::f32::consts::PI;
let t = Transform::new_translate(-50.0, -50.0)
.rotate(PI)
.translate(50.0, 50.0)
.scale(2.0, 2.0);```

## Methods

### `impl Transform`[src]

#### `pub fn new() -> Self`[src]

Create a new identity transform.

#### `pub fn new_translate(tx: f32, ty: f32) -> Self`[src]

Create a new translation transform.

• `tx` Amount to translate X.
• `ty` Amount to translate Y.

#### `pub fn new_scale(sx: f32, sy: f32) -> Self`[src]

Create a new scale transform.

• `sx` Scale factor for X dimension.
• `sy` Scale factor for Y dimension.

#### `pub fn new_rotate(th: f32) -> Self`[src]

Create a new rotation transform.

• `th` Angle to rotate coordinates (radians).

#### `pub fn new_skew(ax: f32, ay: f32) -> Self`[src]

Create a new skew transform.

• `ax` Angle to skew X-axis (radians).
• `ay` Angle to skew Y-axis (radians).

#### `pub fn translate(self, tx: f32, ty: f32) -> Self`[src]

Apply translation to a transform.

• `tx` Amount to translate X.
• `ty` Amount to translate Y.

#### `pub fn scale(self, sx: f32, sy: f32) -> Self`[src]

Apply scaling to a transform.

• `sx` Scale factor for X dimension.
• `sy` Scale factor for Y dimension.

#### `pub fn rotate(self, th: f32) -> Self`[src]

Apply rotation to a transform.

• `th` Angle to rotate coordinates (radians).

#### `pub fn skew(self, ax: f32, ay: f32) -> Self`[src]

Apply skew to a transform.

• `ax` Angle to skew X-axis (radians).
• `ay` Angle to skew Y-axis (radians).

## Trait Implementations

### `impl Clone for Transform`[src]

#### `fn clone_from(&mut self, source: &Self)`1.0.0[src]

Performs copy-assignment from `source`. Read more

### `impl Mul<Transform> for Transform`[src]

#### `type Output = Self`

The resulting type after applying the `*` operator.

## Blanket Implementations

### `impl<T, U> TryFrom for T where    U: Into<T>, `[src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

### `impl<T, U> TryInto for T where    U: TryFrom<T>, `[src]

#### `type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.