import { ShapePrimitive } from './shape-primitive';
/**
 * The `Rectangle` object is an area defined by its position, as indicated by its top-left corner
 * point (`x`, `y`) and by its `width` and its `height`, including a `roundness` property that
 * defines the roundness of the rounded corners.
 * @memberof maths
 */
export declare class Rectangle extends ShapePrimitive {
    /**
     * The X coordinate of the upper-left corner of the rectangle
     */
    x: number;
    /**
     * The Y coordinate of the upper-left corner of the rectangle
     */
    y: number;
    /**
     * The overall width of this rectangle
     */
    width: number;
    /**
     * The overall height of this rectangle
     */
    height: number;
    /**
     * Controls the roundness of the rounded corners
     */
    roundness: number;
    /**
     * @param x - The X coordinate of the upper-left corner of the rectangle
     * @param y - The Y coordinate of the upper-left corner of the rectangle
     * @param width - The overall width of this rectangle
     * @param height - The overall height of this rectangle
     * @param roundness - Controls the roundness of the rounded corners
     */
    constructor(x?: number, y?: number, width?: number, height?: number, roundness?: number);
    /**
     * Returns the framing rectangle of the rectangle as a Rectangle object
     * @param out - optional rectangle to store the result
     * @returns The framing rectangle
     */
    getBounds(out?: Rectangle): Rectangle;
    /**
     * Creates a clone of this rectangle.
     * @returns - A copy of the rectangle.
     */
    clone(): Rectangle;
    /**
     * Copies another rectangle to this one.
     * @param rectangle - The rectangle to copy from.
     * @returns Returns itself.
     */
    copyFrom(rectangle: Rectangle): this;
    /**
     * Copies this rectangle to another one.
     * @param rectangle - The rectangle to copy to.
     * @returns Returns given parameter.
     */
    copyTo(rectangle: Rectangle): Rectangle;
    build(points: number[]): void;
    triangulate(points: number[], vertices: number[], verticesOffset: number, indices: number[], indicesOffset: number): void;
}