我正在使用函数生成多个 C3 图。当我调用 Chart.destroy() 时，只有最近创建的图表被销毁。
另一种表达方式可能是:如何销毁所有图表并重置我的页面？
我正在使用通用函数来调用:
chart = c3.generate(...)
如果我调用函数 3 次并创建了 3 个图表，chart.destroy() 只会删除第 3 个图表，但会留下另外 2 个图表。
最佳答案
一种解决方案是使用唯一的变量名称生成图表，例如
var chart1 = c3.generate({...});
var chart2 = c3.generate({...});
然后您可以使用以下方法销毁图表:
chart = chart1.destroy();
chart = chart2.destroy();
我为您创建了一个示例 fiddle :http://jsfiddle.net/901jm783/ ，使用如下超时函数进行演示:
setTimeout(function () {
chart = chart1.destroy();
chart = chart2.destroy();
}, 5000);
编辑:下面是 fiddle 的完整代码，您可以将其作为可执行代码片段运行。请注意，我将每个图表绑定(bind)到不同的 div id。
var chart1 = c3.generate({
bindto: '#c3_chart_1',
padding: {
top: 10,
right: 70,
bottom: 50,
left: 75,
},
data: {
columns: [
['data1', 100, 200, 150, 300, 200],
['data2', 200, 150, 25, 250, 100],
],
},
});
var chart2 = c3.generate({
bindto: '#c3_chart_2',
padding: {
top: 10,
right: 70,
bottom: 50,
left: 75,
},
data: {
columns: [
['data1', 100, 200, 150, 300, 200],
['data2', 200, 150, 25, 250, 100],
],
},
});
// the following function will destroy both chart1 and chart2
setTimeout(function () {
chart = chart1.destroy();
chart = chart2.destroy();
}, 5000);
.c3 svg {
font: 10px sans-serif
}
.c3 line,
.c3 path {
fill: none;
stroke: #000;
}
.c3 text {
-webkit-user-select: none;
-moz-user-select: none;
user-select: none
}
.c3-bars path,
.c3-event-rect,
.c3-legend-item-tile,
.c3-xgrid-focus,
.c3-ygrid {
shape-rendering: crispEdges
}
.c3-chart-arc path {
stroke: #fff
}
.c3-chart-arc text {
fill: #fff;
font-size: 13px
}
.c3-grid line {
stroke: #aaa
}
.c3-grid text {
fill: #aaa
}
.c3-xgrid,
.c3-ygrid {
stroke-dasharray: 3 3
}
.c3-text.c3-empty {
fill: gray;
font-size: 2em
}
.c3-line {
stroke-width: 1px
}
.c3-circle._expanded_ {
stroke-width: 1px;
stroke: #fff
}
.c3-selected-circle {
fill: #fff;
stroke-width: 2px
}
.c3-bar {
stroke-width: 0
}
.c3-bar._expanded_ {
fill-opacity: .75
}
.c3-target.c3-focused {
opacity: 1
}
.c3-target.c3-focused path.c3-line,
.c3-target.c3-focused path.c3-step {
stroke-width: 2px
}
.c3-target.c3-defocused {
opacity: .3!important
}
.c3-region {
fill: #4682b4;
fill-opacity: .1
}
.c3-brush .extent {
fill-opacity: .1
}
.c3-legend-item {
font-size: 12px
}
.c3-legend-item-hidden {
opacity: .15
}
.c3-legend-background {
opacity: .75;
fill: #fff;
stroke: #d3d3d3;
stroke-width: 1
}
.c3-tooltip-container {
z-index: 10
}
.c3-tooltip {
border-collapse: collapse;
border-spacing: 0;
background-color: #fff;
empty-cells: show;
-webkit-box-shadow: 7px 7px 12px -9px #777;
-moz-box-shadow: 7px 7px 12px -9px #777;
box-shadow: 7px 7px 12px -9px #777;
opacity: .9
}
.c3-tooltip tr {
border: 1px solid #CCC
}
.c3-tooltip th {
background-color: #aaa;
font-size: 14px;
padding: 2px 5px;
text-align: left;
color: #FFF
}
.c3-tooltip td {
font-size: 13px;
padding: 3px 6px;
background-color: #fff;
border-left: 1px dotted #999
}
.c3-tooltip td>span {
display: inline-block;
width: 10px;
height: 10px;
margin-right: 6px
}
.c3-tooltip td.value {
text-align: right
}
.c3-area {
stroke-width: 0;
opacity: .2
}
.c3-chart-arcs-title {
dominant-baseline: middle;
font-size: 1.3em
}
.c3-chart-arcs .c3-chart-arcs-background {
fill: #e0e0e0;
stroke: none
}
.c3-chart-arcs .c3-chart-arcs-gauge-unit {
fill: #000;
font-size: 16px
}
.c3-chart-arcs .c3-chart-arcs-gauge-max,
.c3-chart-arcs .c3-chart-arcs-gauge-min {
fill: #777
}
.c3-chart-arc .c3-gauge-value {
fill: #000
}<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js">
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/c3/0.4.10/c3.min.js">
</script>
<body>
<br><br>
<div id="c3_chart_1" style="width: 95%; height: 200px"></div>
<div id="c3_chart_2" style="width: 95%; height: 200px"></div>关于javascript - 如何销毁由同一原始函数构建的多个 C3 图，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57009842/