Struct ViewTransform 

pub struct ViewTransform {
    pub scale: f64,
    pub offset: DVec2,
}

Screen ↔ world mapping. Px tolerance in world units.

Fields

scale: f64

offset: DVec2

Implementations

impl ViewTransform

pub fn identity() -> Self

pub fn screen_to_world(&self, p: DVec2) -> DVec2

pub fn world_to_screen(&self, p: DVec2) -> DVec2

pub fn world_tolerance(&self, px: f64) -> f64

Tolerance in world units for a sub-pixel screen tolerance (0.25px).

pub fn zoom_at(&mut self, screen_pos: DVec2, factor: f64, min: f64, max: f64)

Zoom about screen_pos by factor, clamped to [min, max]. Shared by canvas viewport and machine graph to stay DRY.

pub fn pan_by(&mut self, delta: DVec2)

Trait Implementations

impl Clone for ViewTransform

fn clone(&self) -> ViewTransform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ViewTransform

impl Debug for ViewTransform

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ViewTransform

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ViewTransform

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ViewTransform

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ViewTransform