我有一个简单的饼图，它从 chart.js 开箱即可加载动画 - 我试图允许动画通过长垂直网页中的某个滚动点进行排队 - 想法是让下面的代码执行，只有一次新用户滚动或点击页面位置 - 动画会一次排队，就是这样。这导致了很多麻烦 - 因为我已经能够使用断点和窗口滚动执行和显示/隐藏页面位置的元素，但是这个动画不会与内联执行，而是我试图实现这一点的每一种方式;每当浏览器滚动条调整最轻微时，动画会刷新并重放。它只是刷新，滚动＆gt;动画刷新＆gt;滚动＆gt;动画刷新。那里有任何指针; chart.js文档在这方面不是很有帮助，因为大部分演示都是onDomready。我已经发现了使用断点执行jQuery的方法，您可以在下面的注释代码中看到，但实际的动画只是忽略并在每次滚动调整时触发。
这里还有主要的外部chart.js文件，它支持以下内容。
Chart.JS外部JS
var breakpoint = false;
$(window).scroll(function() {
if ($(this).scrollTop() > 1300 && !breakpoint ) {
// do stuff
// $(window).scroll(function() {
// if ($(this).scrollTop() > 1100) {
// $(function () {
// $(document).ready(function () {
var chart = null;
var colors = Highcharts.getOptions().colors,
categories = ['Shop', 'Buy', 'Own'],
name = 'Browser brands',
data = [{
// y: 55.11,
// color: colors[0],
// drilldown: {
// name: 'MSIE versions',
// categories: ['MSIE 6.0', 'MSIE 7.0', 'MSIE 8.0', 'MSIE 9.0'],
// data: [10.85, 7.35, 33.06, 2.81],
// color: colors[0]
// }
// }, {
y: 3,
color: colors[8],
drilldown: {
name: 'Buy',
// categories: ['Firefox 2.0', 'Firefox 3.0', 'Firefox 3.5', 'Firefox 3.6', 'Firefox 4.0'],
data: [10.20, 10.83, 11.58, 13.12, 5.43],
color: colors[8]
}
}, {
y: 7,
color: colors[8],
drilldown: {
name: 'Own',
// categories: ['Chrome 5.0', 'Chrome 6.0', 'Chrome 7.0', 'Chrome 8.0', 'Chrome 9.0',
// 'Chrome 10.0', 'Chrome 11.0', 'Chrome 12.0'],
data: [0.12, 0.19, 0.12, 0.36, 0.32, 9.91, 0.50, 0.22],
color: colors[8]
}
}, {
y: 10,
color: colors[8],
drilldown: {
name: 'Own',
// categories: ['Safari 5.0', 'Safari 4.0', 'Safari Win 5.0', 'Safari 4.1', 'Safari/Maxthon',
// 'Safari 3.1', 'Safari 4.1'],
data: [4.55, 5.42, 6.23, 0.21, 0.20, 0.19, 0.14],
color: colors[8],
}
// }, {
// y: 2.14,
// color: colors[8],
// drilldown: {
// name: 'Home',
// // categories: ['Opera 9.x', 'Opera 10.x', 'Opera 11.x'],
// data: [20.1, 0.37, 1.65],
// color: colors[8]
// }
}];
// Build the data array
var browserData = [];
for (var i = 0; i < data.length; i++) {
// add browser data
browserData.push({
name: categories[i],
y: data[i].y,
color: data[i].color
});
}
// Create the chart
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'pie'
},
title: {
text: null
},
series: [{
name: '',
data: browserData,
innerSize: '20%'
}],
tooltip: {
valueSuffix: '%',
positioner: function () {
return {
x: this.chart.series[0].center[0] - (this.label.width / 2) + 8,
y: this.chart.series[0].center[1] - (this.label.height / 2) + 8
};
}
},
plotOptions: {
pie: {
cursor: 'pointer',
dataLabels: {
connectorColor: 'white'
},
point: {
events: {
mouseOver: function () {
if (!this.connector.dynamicConnector) {
var width = 16,
height = 24;
// Extract the connector start position
var dArr = this.connector.d.split(' ');
var startY = dArr.pop(),
startX = dArr.pop();
var start = [parseFloat(startX), parseFloat(startY)];
// Construct the triangle
var path = 'M ' + start[0] + ' ' + start[1] + 'L ' + (start[0] + height) + ' ' + (start[1] - (width / 2)) + ' L ' + (start[0] + height) + ' ' + (start[1] + (width / 2)) + ' L ' + start[0] + ' ' + start[1];
// Convert the section angle from radian to degree and apply to the trangle
// Setup rotation, x, y required by the updateTransform method
this.connector.rotation = (this.angle * 180) / Math.PI;
this.connector.x = startX;
this.connector.y = startY;
this.connector.updateTransform();
this.connector.attr('stroke', this.color);
this.connector.attr('fill', Highcharts.Color(this.color).brighten(0.2).get());
this.connector.attr('d', path);
this.connector.dynamicConnector = true;
}
this.connector.show();
},
mouseOut: function () {
this.connector.hide();
}
}
}
}
}
});
}
});
答案 0 :(得分：0)
如果有人有兴趣 - 我用这个插件实现了我的目标。的 Appear.js
<script src="http://rawgit.com/morr/jquery.appear/master/jquery.appear.js"></script>
__
/**
* Highcharts plugin to defer initial series animation until the element has appeared. Requieres
* jQuery.appear.
*/
(function (H) {
function deferAnimate (proceed, init) {
var series = this,
$renderTo = $(this.chart.container.parentNode);
// Prevent pre-rendering without animation
if (init) {
series.group.hide();
}
// Prepare for animation
if (init) {
$renderTo.appear(); // initialize appear plugin
proceed.call(this, init);
// It is appeared, run animation
} else if ($renderTo.is(':appeared')) {
proceed.call(series);
series.group.show();
// It is not appeared, halt animation until appear
} else {
$renderTo.on('appear', function () {
if (!series.animated) {
proceed.call(series);
series.group.show();
series.animated = true;
}
});
}
};
H.wrap(H.Series.prototype, 'animate', deferAnimate);
H.wrap(H.seriesTypes.column.prototype, 'animate', deferAnimate);
H.wrap(H.seriesTypes.pie.prototype, 'animate', deferAnimate);
}(Highcharts));