    import Tag from './Tag';

    /** @module svgObjects.PolyLine */

    /**
     * SVG PolyLine (a path defined by sequence of points on plane)
     * @extends Tag
     */
    export default class PolyLine extends Tag {
        /**
         * @param {PolyLinePoints} points points describing this PolyLine
         * @param {number} [strokeWidth] width of the stroke for this PolyLine in SVG pixels
         * @param {string} [color] CSS color of this PolyLine
         */
        constructor(points, strokeWidth, color) {
            super('PolyLine');

            let attributes = {
                points: points.string,
                fill: 'none',
                'stroke-width': strokeWidth
            };

            if (color !== undefined) {
                attributes.stroke = color;
            }

            this.addAttr(attributes);
        }

        /**
         * update points of this PolyLine
         * @param {PolyLinePoints} points new set of points describing this PolyLine
         */
        updatePoints(points) {
            this.addAttr({
                points: points.string
            });
        }
    }