Trait MatrixHelpers

pub trait MatrixHelpers<Src, Dst> {
    // Required methods
    fn preserves_2d_axis_alignment(&self) -> bool;
    fn has_perspective_component(&self) -> bool;
    fn has_2d_inverse(&self) -> bool;
    fn exceeds_2d_scale(&self, limit: f64) -> bool;
    fn inverse_project(
        &self,
        target: &Point2D<f32, Dst>,
    ) -> Option<Point2D<f32, Src>>;
    fn inverse_rect_footprint(
        &self,
        rect: &Box2D<f32, Dst>,
    ) -> Option<Box2D<f32, Src>>;
    fn transform_kind(&self) -> TransformedRectKind;
    fn is_simple_translation(&self) -> bool;
    fn is_simple_2d_translation(&self) -> bool;
    fn is_2d_scale_translation(&self) -> bool;
    fn determinant_2d(&self) -> f32;
    fn flatten_z_output(&mut self);
    fn cast_unit<NewSrc, NewDst>(&self) -> Transform3D<f32, NewSrc, NewDst>;
}

Required Methods

fn preserves_2d_axis_alignment(&self) -> bool

A port of the preserves2dAxisAlignment function in Skia. Defined in the SkMatrix44 class.

fn has_perspective_component(&self) -> bool

fn has_2d_inverse(&self) -> bool

fn exceeds_2d_scale(&self, limit: f64) -> bool

Check if the matrix post-scaling on either the X or Y axes could cause geometry transformed by this matrix to have scaling exceeding the supplied limit.

fn inverse_project( &self, target: &Point2D<f32, Dst>, ) -> Option<Point2D<f32, Src>>

fn inverse_rect_footprint( &self, rect: &Box2D<f32, Dst>, ) -> Option<Box2D<f32, Src>>

fn transform_kind(&self) -> TransformedRectKind

fn is_simple_translation(&self) -> bool

fn is_simple_2d_translation(&self) -> bool

fn is_2d_scale_translation(&self) -> bool

fn determinant_2d(&self) -> f32

Return the determinant of the 2D part of the matrix.

fn flatten_z_output(&mut self)

Turn Z transformation into identity. This is useful when crossing “flat” transform styled stacking contexts upon traversing the coordinate systems.

fn cast_unit<NewSrc, NewDst>(&self) -> Transform3D<f32, NewSrc, NewDst>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<Src, Dst> MatrixHelpers<Src, Dst> for Transform3D<f32, Src, Dst>

fn inverse_project( &self, target: &Point2D<f32, Dst>, ) -> Option<Point2D<f32, Src>>

Find out a point in Src that would be projected into the target.

fn preserves_2d_axis_alignment(&self) -> bool

fn has_perspective_component(&self) -> bool

fn has_2d_inverse(&self) -> bool

fn exceeds_2d_scale(&self, limit: f64) -> bool

fn inverse_rect_footprint( &self, rect: &Box2D<f32, Dst>, ) -> Option<Box2D<f32, Src>>

fn transform_kind(&self) -> TransformedRectKind

fn is_simple_translation(&self) -> bool

fn is_simple_2d_translation(&self) -> bool

fn is_2d_scale_translation(&self) -> bool

fn determinant_2d(&self) -> f32

fn flatten_z_output(&mut self)

fn cast_unit<NewSrc, NewDst>(&self) -> Transform3D<f32, NewSrc, NewDst>

Implementors