google map api มอง marker และ infowindows เป็น overlay ประเภทหนึ่งที่สามารถลบได้โดยการเพิ่มใน array overlays และเปลี่ยนให้เป็น null เหมือนๆกัน
คลิกเพื่อดูตัวอย่าง google maps: สร้างและลบ marker / overlay หรือจะเขียนเองตามตัวอย่างก็ได้
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 | <!doctype html><html><head><meta charset="utf-8"><title>Google Maps APIs > Maps JavaScript API > Markers > delete overlay</title><link href="../../vendor/twbs/bootstrap/dist/css/bootstrap.min.css" rel="stylesheet" rel="stylesheet" type="text/css"><link href="styles.css" rel="stylesheet" type="text/css"></head><body><div class="map" id="mapA"></div><br><button class="btn" id="deleteBtn" type="button">Delete Marker</button><script src="../../vendor/components/jquery/jquery.min.js"></script><script>var map;var overlays = [];var places = [{ "latitude": 13.7485809, "longitude": 100.5832588, "name_en": "Bangkok Hospital", "name_th": "โรงพยาบาล กรุงเทพ ซอยศูนย์วิจัย" }, { "latitude": 13.746166, "longitude": 100.552348, "name_en": "Bumrungrad International Hospital", "name_th": "โรงพยาบาล บำรุงราษฎร์" }, { "latitude": 13.7679658, "longitude": 100.5345264, "name_en": "Phramongkutklao Hospital", "name_th": "โรงพยาบาลพระมงกุฎเกล้า" }, { "latitude": 13.7561676, "longitude": 100.5391023, "name_en": "Phyathai 1 Hospital", "name_th": "โรงพยาบาล พญาไท 1" }, { "latitude": 13.7698357, "longitude": 100.5404377, "name_en": "Phyathai 2 Hospital", "name_th": "โรงพยาบาล พญาไท 2 อินเตอร์เนชันแนล" }, { "latitude": 13.769295, "longitude": 100.527455, "name_en": "Prasat Neurological Hospital and Institute", "name_th": "สถาบันประสาทวิทยา" }, { "latitude": 13.76188, "longitude": 100.526455, "name_en": "Priest Hospital", "name_th": "โรงพยาบาลสงฆ์" }, { "latitude": 13.7659465, "longitude": 100.5353223, "name_en": "Queen Sirikit National Institute of Child Health", "name_th": "สถาบันสุขภาพเด็กแห่งชาติมหาราชินี" }, { "latitude": 13.7642952, "longitude": 100.5367674, "name_en": "Rajavithi Hospital", "name_th": "โรงพยาบาล ราชวิถี" }, { "latitude": 13.766015, "longitude": 100.5267864, "name_en": "Ramathibodi Hospital", "name_th": "โรงพยาบาลรามาธิบดี" }, { "latitude": 13.7657804, "longitude": 100.5333703, "name_en": "TropMed Hospital for Tropical Diseases - Faculty of Tropical Medicine, Mahidol University", "name_th": "โรงพยาบาล เวชศาสตร์เขตร้อน ม.มหิดล" }, { "latitude": 13.7719828, "longitude": 100.5515745, "name_en": "Veterans General Hospital", "name_th": "โรงพยาบาล ทหารผ่านศึก" }, { "latitude": 13.7831277, "longitude": 100.5336353, "name_en": "Vichaiyut Hospital (North Building)", "name_th": "โรงพยาบาล วิชัยยุทธ" }, { "latitude": 13.7804061, "longitude": 100.5330211, "name_en": "Vichaiyut Medical Center", "name_th": "ศูนย์การแพทย์วิชัยยุทธ" }, { "latitude": 13.7600024, "longitude": 100.534462, "name_en": "Bhumirajanakarindra Kidney Institute Hospital", "name_th": "โรงพยาบาล สถาบันโรคไตภูมิราชนครินทร์" }];/* function createMaps */function createMap(mapArea, position) { var latlng = new google.maps.LatLng(parseFloat(position.latitude), parseFloat(position.longitude)); map = new google.maps.Map(document.getElementById(mapArea), { "zoom": 18 }); map.setCenter(latlng); var marker = new google.maps.Marker({ "map": map, "position": latlng, }); var infowindow = new google.maps.InfoWindow({ "content": 'Latitude = ' + position.latitude + ', ' + ' longitude = ' + position.longitude, "position": latlng, }).open(map, marker);}function deleteOverlays() { var overlaysLength = overlays.length; if (overlaysLength > 1) { for (var a = 0; a <= overlays.length; a++) { if (typeof overlays[a] !== 'undefined') { overlays[a].setMap(null); } } } overlays = [];}function handleLocationError(browserHasGeolocation, infoWindow, pos) { infoWindow.setPosition(pos); infoWindow.setContent(browserHasGeolocation ? 'Error: The Geolocation service failed.' : 'Error: Your browser doesn\'t support geolocation.'); infoWindow.open(map);}function initMap(defaultLatitude = 13.7651991, defaultLongitude = 100.5368694) { position = { "latitude": defaultLatitude, "longitude": defaultLongitude, }; createMap('mapA', position); setMarkers(map)}function setMarkers(map) { for (var a = 0; a < places.length; a++) { var place = places[a]; var marker = new google.maps.Marker({ "map": map, "position": { "lat": parseFloat(place.latitude), "lng": parseFloat(place.longitude) }, "title": place.name_en + "\n" + place.name_th, "zIndex": a }); overlays.push(marker); }}$(function(){ $('#deleteBtn').click(function(){ deleteOverlays(); });});</script><script async defer src="https://maps.googleapis.com/maps/api/js?callback=initMap&key=AIzaSyDE5zb4r9sbN5S_GcD3NZRED1Ma3FzFqso"></script></body></html> |