按照本指南我可以正确运行项目，现在我想为绘制的点添加一个事件。这是我的代码:
<!doctype html>
<html>
<head>
<title>PolymerVizCodelab</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
<meta name="mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-capable" content="yes">
<script src="bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
<link rel="import" href="bower_components/google-map/google-map.html">
<link rel="import" href="bower_components/point-overlay/point-overlay.html">
<link rel="import" href="bower_components/paper-card/paper-card.html">
<link rel="import" href="bower_components/paper-slider/paper-slider.html">
<link rel="import" href="bower_components/iron-ajax/iron-ajax.html">
<link rel="stylesheet" href="styles.css">
</head>
<body unresolved>
<template is="dom-bind" id="t">
<google-map map="{{map}}" latitude="38.6" longitude="-95.8" zoom="5"
styles='[{"stylers":[{"saturation":-85}]},{"featureType":"water","stylers":[{"lightness":-20}]}]'
on-google-map-ready="setPointSize"
on-zoom-changed="setPointSize">
</google-map>
<point-overlay on-click="clickHandler" map="[[map]]" uniforms="{{uniforms}}" data="{{data}}" id="p">
</point-overlay>
<iron-ajax auto handle-as="json"
url="bower_components/point-overlay/tornadoes-1950-2014.json"
last-response="{{data}}">
</iron-ajax>
<!-- <paper-card elevation="2">
<paper-slider min="5" max="100" value="30"></paper-slider>
</paper-card> -->
</template>
<script>
var t = document.querySelector('#t');
t.setPointSize = function(e) {
this.uniforms.pointSize = Math.exp(0.3 * this.map.getZoom());
this.notifyPath('uniforms.pointSize', this.uniforms.pointSize);
};
function clickHandler(e) {
console.log("click");
}
</script>
</body>
</html>
但是 clickHandler 从未被触发。
如何为 map 上的每个点绑定(bind)和事件？
最佳答案
clickHandler 需要成为 dom-bind 模板的一部分(就像您使用 setPointSize 所做的那样)。更改此:
function clickHandler(e) {
console.log("click");
}
对此:
t.clickHandler = function(e) {
console.log("click");
};
关于javascript - polymer 点覆盖点击，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40226660/