使用nvd3库,我试图在条形图(如两个倒置的条形图)中显示相同的“ x”值的正和负“ y”值。这些值会显示出来,但负值也会在y轴的正比例上绘制。
如果我只显示负值,则它可以正常工作,但在两种情况下,它都无法按预期工作。
下面是我当前在代码中所显示的内容:
var chart;
nv.addGraph(function() {
chart = nv.models.historicalBarChart();
chart.useInteractiveGuideline(true);
chart.xAxis.axisLabel("Time (s)");
chart.yAxis.axisLabel('Voltage (v)');
d3.select('#chart svg')
.datum(sinAndCos())
.call(chart);
nv.utils.windowResize(chart.update);
return chart;
});
function sinAndCos() {
var sin = [], cos = [];
for (var i = 0; i < 100; i++) {
sin.push({
x: i,
y: i
});
cos.push({
x: i,
y: -(i)
});
}
return [
{
values: sin,
key: "Sine Wave",
color: "#ff7f0e"
},
{
values: cos,
key: "Cosine Wave",
color: "#2ca02c"
}
];
}
text {
font: 12px sans-serif;
}
svg {
display: block;
}
html, body, #chart, svg {
margin: 0px;
padding: 0px;
height: 100%;
width: 100%;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.6/nv.d3.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.6/nv.d3.min.css" rel="stylesheet"/>
<div id="chart">
<svg></svg>
</div>
以下是JSFiddle的链接,其中再现了该问题:https://jsfiddle.net/prerak6962/a1zh9o4e/14/
我有什么需要补充的吗?
答案 0 :(得分:1)
使用其他条形图可获得更好的结果
chart = nv.models.discreteBarChart();
chart = nv.models.multiBarChart();
var chart;
nv.addGraph(function() {
//chart = nv.models.historicalBarChart();
chart = nv.models.multiBarChart();
//chart.useInteractiveGuideline(true);
chart.xAxis.axisLabel("Time (s)");
chart.yAxis.axisLabel('Voltage (v)');
d3.select('#chart svg')
.datum(sinAndCos())
.call(chart);
nv.utils.windowResize(chart.update);
return chart;
});
function sinAndCos() {
var sin = [], cos = [];
for (var i = 0; i < 100; i++) {
sin.push({
x: i,
y: i
});
cos.push({
x: i,
y: -(i)
});
}
return [
{
values: sin,
key: "Sine Wave",
color: "#ff7f0e"
},
{
values: cos,
key: "Cosine Wave",
color: "#2ca02c"
}
];
}
text {
font: 12px sans-serif;
}
svg {
display: block;
}
html, body, #chart, svg {
margin: 0px;
padding: 0px;
height: 100%;
width: 100%;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.6/nv.d3.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.6/nv.d3.min.css" rel="stylesheet"/>
<div id="chart">
<svg></svg>
</div>