import { GeometryType, Curve, GeometryCollection } from "./internal";
/**
 * A restricted form of GeometryCollection where each Geometry in the collection
 * must be of type Curve.
 * @param <T> curve type
 */
export declare abstract class MultiCurve<T extends Curve> extends GeometryCollection<T> {
    /**
     * Constructor
     * @param type geometry type
     * @param hasZ has z
     * @param hasM has m
     */
    protected constructor(type: GeometryType, hasZ: boolean, hasM: boolean);
    /**
     * Get the curves
     * @return curves
     */
    getCurves(): Array<T>;
    /**
     * Set the curves
     * @param curves curves
     */
    setCurves(curves: Array<T>): void;
    /**
     * Add a curve
     * @param curve curve
     */
    addCurve(curve: T): void;
    /**
     * Add curves
     * @param curves curves
     */
    addCurves(curves: Array<T>): void;
    /**
     * Get the number of curves
     * @return number of curves
     */
    numCurves(): number;
    /**
     * Returns the Nth curve
     * @param n nth line curve to return
     * @return curve
     */
    getCurve(n: number): T;
    /**
     * Determine if this Multi Curve is closed for each Curve (start point = end
     * point)
     *
     * @return true if closed
     */
    isClosed(): boolean;
}