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gps.php
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<html>
<head>
<title>Directions Service</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<style>
/*
* Always set the map height explicitly to define the size of the div element
* that contains the map.
*/
#map {
height: 100%;
}
/*
* Optional: Makes the sample page fill the window.
*/
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#floating-panel {
position: absolute;
top: 10px;
left: 25%;
z-index: 5;
background-color: #fff;
padding: 5px;
border: 1px solid #999;
text-align: center;
font-family: "Roboto", "sans-serif";
line-height: 30px;
padding-left: 10px;
}
</style>
<script>
function initMap() {
const directionsService = new google.maps.DirectionsService();
const directionsRenderer = new google.maps.DirectionsRenderer();
const map = new google.maps.Map(document.getElementById("map"), {
zoom: 7,
center: { lat: 41.85, lng: -87.65 },
});
directionsRenderer.setMap(map);
const onChangeHandler = function () {
calculateAndDisplayRoute(directionsService, directionsRenderer);
};
document.getElementById("start").addEventListener("change", onChangeHandler);
document.getElementById("end").addEventListener("change", onChangeHandler);
}
function calculateAndDisplayRoute(directionsService, directionsRenderer) {
directionsService
.route({
origin: {
query: document.getElementById("start").value,
},
destination: {
query: document.getElementById("end").value,
},
travelMode: google.maps.TravelMode.DRIVING,
})
.then((response) => {
directionsRenderer.setDirections(response);
})
.catch((e) => window.alert("Directions request failed due to " + status));
}
window.initMap = initMap;
</script>
</head>
<body>
<div id="floating-panel">
<b>Start: </b>
<select id="start">
<option value="chicago, il">Chicago</option>
<option value="st louis, mo">St Louis</option>
<option value="joplin, mo">Joplin, MO</option>
<option value="oklahoma city, ok">Oklahoma City</option>
<option value="amarillo, tx">Amarillo</option>
<option value="gallup, nm">Gallup, NM</option>
<option value="flagstaff, az">Flagstaff, AZ</option>
<option value="winona, az">Winona</option>
<option value="kingman, az">Kingman</option>
<option value="barstow, ca">Barstow</option>
<option value="san bernardino, ca">San Bernardino</option>
<option value="los angeles, ca">Los Angeles</option>
</select>
<b>End: </b>
<select id="end">
<option value="chicago, il">Chicago</option>
<option value="st louis, mo">St Louis</option>
<option value="joplin, mo">Joplin, MO</option>
<option value="oklahoma city, ok">Oklahoma City</option>
<option value="amarillo, tx">Amarillo</option>
<option value="gallup, nm">Gallup, NM</option>
<option value="flagstaff, az">Flagstaff, AZ</option>
<option value="winona, az">Winona</option>
<option value="kingman, az">Kingman</option>
<option value="barstow, ca">Barstow</option>
<option value="san bernardino, ca">San Bernardino</option>
<option value="los angeles, ca">Los Angeles</option>
</select>
</div>
<div id="map"></div>
<!--
The `defer` attribute causes the callback to execute after the full HTML
document has been parsed. For non-blocking uses, avoiding race conditions,
and consistent behavior across browsers, consider loading using Promises.
See https://developers.google.com/maps/documentation/javascript/load-maps-js-api
for more information.
-->
<script
src="https://maps.googleapis.com/maps/api/js?key=&callback=initMap&v=weekly"
defer
></script>
</body>
</html>