// 다각형 객체를 저장할 변수를 생성합니다.
var polygon;

// 다각형 객체를 생성합니다. 
function polygonDraw() {
	if(!polygon){
		polygon = L.polygon([
			   [37.53593403923172, 126.91071510314943],
			   [37.53375604645877, 126.90959930419923],
			   [37.52660906090025, 126.9115734100342],
			   [37.52075482925703, 126.91577911376955],
			   [37.518236006868754, 126.9188690185547],
			   [37.51544478004621, 126.92788124084474],
			   [37.51748715138366, 126.94152832031251],
			   [37.51775946333865, 126.94659233093263],
			   [37.52048252823317, 126.94418907165529],
			   [37.52477115392614, 126.9393825531006],
			   [37.53035280541094, 126.93217277526857],
			   [37.532871218725354, 126.92710876464845],
			   [37.53423248781317, 126.92281723022462],
			   [37.53634240579513, 126.91123008728029]
			   ]).addTo(mymap);
	}
}

// 다각형 객체를 삭제합니다.
function polygonDel() {
	mymap.removeLayer(polygon);
	polygon=null;
}