import type { GPUVegaCanvasContext } from '../types/context.js';
import type { ItemGeometry, PathGeometry } from '../types/geometry.js';
import type { FillStyle, StrokeStyle } from '../types/scene.js';
export type GeometryItem = FillStyle & StrokeStyle & {
    opacity?: number;
};
/**
 * A path item's own transform, applied the way the canvas mark does it: the
 * path coordinates scale, then the whole thing rotates about the item origin.
 * Scaling before the stroke is extruded is what keeps the stroke width uniform,
 * which is the `non-scaling-stroke` the svg renderer asks for.
 */
export interface ItemTransform {
    angle: number;
    scaleX: number;
    scaleY: number;
}
/** An item's `angle` in radians, which vega gives in degrees. */
export declare function itemTurn(item: {
    angle?: number;
}): number;
/**
 * Converts triangulated path geometry into per-item fill and stroke
 * triangle buffers. `dx`/`dy` apply an item-local translation (e.g. the
 * x/y of a path mark item). Group translation is handled by the render
 * offset uniform and must NOT be baked in here.
 */
export default function geometryForItem(context: GPUVegaCanvasContext, item: GeometryItem, shapeGeom: PathGeometry, cache?: boolean, dx?: number, dy?: number, transform?: ItemTransform): ItemGeometry;