// 创建SVG元素
export function svgCreate(name) {
  return document.createElementNS("http://www.w3.org/2000/svg", name);
}

// 将坐标数据转为d属性的字符串值
export function pointsToPath(rings, closed) {
	var str = '',
	i, j, len, len2, points, p;

	for (i = 0, len = rings.length; i < len; i++) {
		points = rings[i];

		for (j = 0, len2 = points.length; j < len2; j++) {
			p = points[j];
			str += (j ? 'L' : 'M') + p.x + ' ' + p.y;
		}

		str += closed ? (Browser.svg ? 'z' : 'x') : '';
	}

	return str || 'M0 0';
}