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javascript - 如何在折线地理图中增加鼠标悬停 “hit area”

转载 作者:数据小太阳 更新时间:2023-10-29 03:57:49 25 4
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我想在多段线路径上鼠标悬停/鼠标移出时显示和隐藏工具提示,问题是我的多段线路径只有笔画宽度2,所以不容易命中鼠标悬停事件中的区域,这肯定不方便用户体验。

我想知道是否有一种方法可以使用任意宽度使点击区域变宽,但对用户不可见?

下面是我的代码片段

path = new google.maps.Polyline(plotOptions);

path.setMap(that.map);

this.polyPathArray.push(path);

google.maps.event.addListener(path, 'mouseover', (function(index) {

return function(polyMouseevent) {
$(".table>tbody>tr>td").removeClass('highlight');
$(".table>tbody>tr").eq(index).find("td").addClass('highlight');

var latlngVal = '';
if(polyMouseevent) {
latlngVal = polyMouseevent.latLng;
} else {
//calculate a random position on a polyline

}

that.infowindows[index].setPosition(latlngVal);
that.infowindows[index].open(that.map);
};
})(i));

任何帮助将不胜感激:)

最佳答案

您可以使用不透明度为 0 的多段线,并在多段线上使用更宽的描边,然后会出现信息窗口。我认为 user3513687 有不同的问题,闪烁是由于光标在 InfoWindow 的顶部和离线。像素偏移似乎可以解决该问题。以下是使用该 fiddle 中的代码作为起点的片段:

var map;

function initialize() {

var mapOptions = {
center: new google.maps.LatLng(-3, 23),
zoom: 5,
mapTypeId: google.maps.MapTypeId.ROADMAP
};

map = new google.maps.Map(document.getElementById('mapcanvas'), mapOptions);

var links = [];
var link2 = [new google.maps.LatLng(-3.5999999999999996, 23.4), new google.maps.LatLng(-4.5, 23.4)],
link1 = [new google.maps.LatLng(-3.5999999999999996, 23.4), new google.maps.LatLng(-3.5999999999999996, 18)];
links.push(link1);
links.push(link2);

for (var i = 0; i < links.length; i++) {
doJob(links[i]);
}
}

function doJob(polyline_bounds) {
var polyline;
polyline = new google.maps.Polyline({
path: polyline_bounds,
strokeColor: "#0000FF",
strokeOpacity: 0.5,
strokeWeight: 2
});

invisiblePolyline = new google.maps.Polyline({
path: polyline_bounds,
strokeColor: "#0000FF",
strokeOpacity: 0.0,
strokeWeight: 20
});

polyline.setMap(map);
invisiblePolyline.setMap(map);
var info = new google.maps.InfoWindow({
content: "Position",
pixelOffset : new google.maps.Size(0, -10)
});

google.maps.event.addListener(invisiblePolyline, 'mouseover', function (event) {
polyline.setOptions({
strokeOpacity: 1
});
info.setPosition(event.latLng);
info.open(map);
});

google.maps.event.addListener(invisiblePolyline, 'mouseout', function (event) {
polyline.setOptions({
strokeOpacity:.5
});
info.close(map);
});
}
google.maps.event.addDomListener(window, 'load', initialize);
html, body, #mapcanvas { margin: 0; padding: 0; height: 100% }
<head lang="en">
<meta charset="UTF-8">
<title></title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
</head>

<body>

<div id="mapcanvas"></div>

</body>

关于javascript - 如何在折线地理图中增加鼠标悬停 “hit area”,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29115278/

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