Struct View 

pub struct View {
    pub center: LonLat,
    pub zoom: f64,
    pub bearing: f64,
    pub pitch: f64,
}

Map camera state.

Fields

center: LonLat

zoom: f64

Zoom level, fractional allowed.

bearing: f64

Bearing in degrees clockwise from north.

pitch: f64

Pitch (tilt) in degrees, 0 = top-down.

Implementations

impl View

pub fn new(center: LonLat, zoom: f64) -> Self

pub fn set_pitch(&mut self, pitch: f64)

Set pitch in degrees, clamped to [0, 60] like the TS engine.

pub fn set_bearing(&mut self, bearing: f64)

Set bearing, normalized to [0, 360).

pub fn scale(&self) -> f64

Pixel scale factor: world pixels per screen pixel at this zoom.

pub fn project(&self, p: LonLat, viewport_w: f64, viewport_h: f64) -> (f64, f64)

Convert a lon/lat to screen pixels relative to the view center, given the viewport size. Bearing rotation is applied.

pub fn unproject( &self, sx: f64, sy: f64, viewport_w: f64, viewport_h: f64, ) -> LonLat

Inverse of View::project (ignores pitch foreshortening).

pub fn visible_tiles( &self, viewport_w: f64, viewport_h: f64, ) -> (u32, u32, u32, u32)

Visible tile range for a viewport: (x0, y0, x1, y1) inclusive at floored zoom.

Trait Implementations

impl Clone for View

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for View

impl Debug for View

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

Formats the value using the given formatter.

impl Default for View

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for View

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for View