function initMap() {
var directionsDisplay = new google.maps.DirectionsRenderer;
var directionsService = new google.maps.DirectionsService;
directionsDisplay.setPanel(document.getElementById('right-panel'));
var onChangeHandler = function() {
calculateAndDisplayRoute(directionsService, directionsDisplay);
};
document.getElementById('start').addEventListener('change', onChangeHandler);
document.getElementById('end').addEventListener('change', onChangeHandler);
calculateAndDisplayRoute(directionsService, directionsDisplay);
}
function calculateAndDisplayRoute(directionsService, directionsDisplay) {
var start = document.getElementById('start').value;
var end = document.getElementById('end').value;
directionsService.route({
origin: start,
destination: end,
travelMode: google.maps.TravelMode.TRANSIT
}, function(response, status) {
if (status === google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
} else {
window.alert('Directions request failed due to ' + status);
}
});
}
google.maps.event.addDomListener(window, "load", initMap);
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
<script src="https://maps.googleapis.com/maps/api/js"></script>
<div id="floating-panel">
<strong>Start:</strong>
<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>
<br>
<strong>End:</strong>
<select id="end">
<option value="chicago, il">Chicago</option>
<option value="st louis, mo" selected="selected">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="right-panel"></div>
助けたおかげで、!私は特定の場所から行くすべてのバスを手に入れることができるかどうか知っていますか?例えば、特定のバスステーションから任意の方向に向かう次の10個のバスを得る。 –