import type { GPUVegaCanvasContext } from '../types/context.js';
import type { PathGeometry } from '../types/geometry.js';
import type { SceneArcItem, SceneAreaItem, SceneShapeItem } from '../types/scene.js';
type AreaPoint = SceneAreaItem;
export declare function arc(context: GPUVegaCanvasContext, item: SceneArcItem, scale?: number): PathGeometry;
export declare function area(context: GPUVegaCanvasContext, items: AreaPoint[], scale?: number): PathGeometry;
/**
 * Path geometry for a trail mark: one filled ribbon whose width follows each
 * point's `size`, which is what vega's own trail mark draws.
 */
export declare function trail(context: GPUVegaCanvasContext, items: AreaPoint[], scale?: number): PathGeometry;
/**
 * Path geometry for a line mark, honouring `interpolate`, `tension` and the
 * `defined` gaps. Used when the line is not a plain polyline.
 */
export declare function line(context: GPUVegaCanvasContext, items: AreaPoint[]): PathGeometry;
/** The path calls d3's generators make, for a consumer that is not a canvas. */
export interface PathSink {
    moveTo(x: number, y: number): void;
    lineTo(x: number, y: number): void;
    bezierCurveTo(x1: number, y1: number, x2: number, y2: number, x: number, y: number): void;
    closePath(): void;
}
/**
 * Runs the line generator straight into `sink`, so a caller that wants the
 * curve's own control points gets them without a path string in between.
 */
export declare function lineSpans(items: AreaPoint[], sink: PathSink): void;
export declare function shape(context: GPUVegaCanvasContext, item: SceneShapeItem, scale?: number): PathGeometry;
/**
 * Triangulated geometry for a vega symbol shape (square, cross, diamond,
 * triangle-*, arrow, wedge, stroke, or a custom SVG path) at the given size,
 * centered on the origin. `size` is the symbol area, matching the canvas
 * renderer's `pathSymbols` sizing.
 */
export declare function symbol(context: GPUVegaCanvasContext, shapeName: string, size: number, scale?: number): PathGeometry;
export {};