import type { Matrix, Scene } from "./scene.types.ts";
/** A scale as a function of a number, which is all of d3's and Plot's `scaleLinear` that is used here. */
export type ScaleFunction = (value: number) => number;
/** The least and the greatest of x and of y in the drawing's own numbers (feet), the domains to give two scales. */
export interface SurfaceDomain {
    x: [number, number];
    y: [number, number];
}
/** The extent of a scene: its `viewBox`, the margin round the surface included. */
export declare function domainOf(scene: Scene): SurfaceDomain;
/** The matrix that takes the drawing's numbers to pixels through two scales. Only a scale that is a straight line (linear) will do; any other is an error. */
export declare function affineOf(x: ScaleFunction, y: ScaleFunction): Matrix;