Wumpus.Basic.Graphic.Drawing

A Drawing object.

This is the corresponding type to Picture in the Wumpus-Core.

Drawing is a function from the DrawingContext to a Picture. Internally the result is actually a (Maybe Picture) and not a Picture, this is a trick to promote the extraction from possibly empty drawings (created by TraceDrawing) to the top-level of the type hierarchy where client code can deal with empty drawings explicitly (empty Pictures cannot be rendered by Wumpus-Core).

Documentation

data Drawing u

Instances

(Real u, Floating u) => Rotate (Drawing u)

(Real u, Floating u) => RotateAbout (Drawing u)

(Num u, Ord u) => Scale (Drawing u)

(Num u, Ord u) => Translate (Drawing u)

type DDrawing = Drawing Double

runDrawing :: DrawingContext -> Drawing u -> Maybe (Picture u)

runDrawingU :: DrawingContext -> Drawing u -> Picture u

drawTracing :: (Real u, Floating u, FromPtSize u) => TraceDrawing u a -> Drawing u

clipDrawing :: (Num u, Ord u) => PrimPath u -> Drawing u -> Drawing u

modifyDrawing :: (Picture u -> Picture u) -> Drawing u -> Drawing u

drawingConcat :: (Picture u -> Picture u -> Picture u) -> Drawing u -> Drawing u -> Drawing u