I have to make map with gadgets that gets voltage each of them from previous point. I have records in my database with lat and lng. I store gadgets with markers on the map with custom icons and windowInfo, but i want to get previous point`s lat and lng and make polyline between previous point and the new one. How can i do this ?
This is my code of index
var customIcons = {
контрагент: {
icon: 'img/contragent.png'
},
switch_16p: {
icon: 'img/switch_16p.png'
},
switch_8p: {
icon: 'img/switch_8p.png'
},
switch_6p:{
icon: 'img/switch_6p.png'
}
};
function load(select) {
var map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(43.8496, 25.9552),
zoom: 14,
mapTypeId: 'roadmap'
});
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP file
downloadUrl("settings_map.php", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var opis_id = markers[i].getAttribute("opis_id");
var address = markers[i].getAttribute("address");
var type = markers[i].getAttribute("type");
var kvartal = markers[i].getAttribute("kvartal");
var gadget = markers[i].getAttribute("gadget");
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
var html = "<b>Опис ID</b> - " + opis_id + "<br/> <br/><b>Адрес:</b> " + address + "<br/><b>Квартал:</b> " + kvartal + "<br><b>У-во: </b>" + gadget;
var icon = customIcons[type] || {};
var marker = new google.maps.Marker({
map: map,
position: point,
icon: icon.icon
});
bindInfoWindow(marker, map, infoWindow, html);
}
});
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {
}
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 3,
center: {lat: 0, lng: -180},
mapTypeId: 'terrain'
});