我是谷歌地图API的新手,所以请指导我。当我把这段代码放在HTML地图中时,我的页面中没有出现。我无法看到任何东西。
如何解决此问题。
我有这个javascript代码:
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>
<script type="text/javascript">
var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
var map;
function initialize() {
directionsDisplay = new google.maps.DirectionsRenderer();
var chicago = new google.maps.LatLng(41.850033, -87.6500523);
var mapOptions = {
zoom: 7,
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: chicago
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
directionsDisplay.setMap(map);
}
function calcRoute() {
var start = document.getElementById('start').value;
var end = document.getElementById('end').value;
var request = {
origin: start,
destination: end,
travelMode: google.maps.DirectionsTravelMode.DRIVING
};
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
}
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
我的HTML + CSS代码:
<style type="text/css">
#map-canvas {
width: 80%;
height: 80%;
margin: 0px;
padding: 0px
}
#panel {
position: absolute;
z-index: 5;
background-color: #fff;
padding: 5px;
border: 1px solid #999;
}
</style>
<div id="panel"> <b>Start: </b>
<input type="text" name="start" id="start" onchange="calcRoute();">
<b>End: </b>
<input type="text" name="end" id="end" onchange="calcRoute();">
</div>
<div id="map-canvas"></div>
答案 0 :(得分:1)
您还必须为完整页面添加样式。类似的东西:
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map-canvas {
...
</style>
不知怎的,它不知道你的地图放在哪里。
答案 1 :(得分:0)