Struct widgetry::mapspace::DrawCustomUnzoomedShapes

pub struct DrawCustomUnzoomedShapes {
    shapes: Vec<Box<dyn Fn(&mut GeomBatch, f64)>>,
    per_zoom: RefCell<PerZoom>,
}

Draw custom objects that scale their size as the canvas is zoomed.

In all honesty I’m completely lost on the math here. By trial and error, I got something that works reasonably for the one use case. Of course I’d love to properly understand how to do this pattern, unify with the above, etc.

Fields

shapes: Vec<Box<dyn Fn(&mut GeomBatch, f64)>>

per_zoom: RefCell<PerZoom>

Implementations

impl DrawCustomUnzoomedShapes

pub fn empty() -> Self

pub fn builder() -> DrawCustomUnzoomedShapesBuilder

pub fn maybe_draw(&self, g: &mut GfxCtx<'_>) -> bool