我正在尝试将 json 文件放入 NVD3 条形图中，但我无法执行我想要的操作。我对 JS 不太了解，但正在为学校的期末项目学习，所以请帮忙 =]
这是我从示例中获得的代码:
<!DOCTYPE html> <meta charset="utf-8">
<link href="../src/nv.d3.css" rel="stylesheet" type="text/css">
<style>
body { overflow-y:scroll; }
text { font: 12px sans-serif; }
svg { display: block; }
#chart1 svg{ height: 500px; min-width: 100px; min-height: 100px; /* margin: 10px; Minimum height and width is a good idea to prevent negative SVG dimensions... For example width should be =< margin.left + margin.right + 1, of course 1 pixel for the entire chart would not be very useful, BUT should not have errors
*/ }
</style> <body>
<div id="chart1">
<svg></svg> </div>
<script src="../lib/d3.v3.js"></script> <script src="../nv.d3.js"></script> <!-- including all the components so I don't have to minify every time I test in development --> <script src="../src/tooltip.js"></script> <script src="../src/utils.js"></script> <script src="../src/models/axis.js"></script> <script src="../src/models/discreteBar.js"></script> <script src="../src/models/discreteBarChart.js"></script> <script>
historicalBarChart = [ {
key: "Cumulative Return",
values: [
{
"label" : "A" ,
"value" : 29.765957771107
} ,
{
"label" : "B" ,
"value" : 0
} ,
{
"label" : "C" ,
"value" : 32.807804682612
} ,
{
"label" : "D" ,
"value" : 196.45946739256
} ,
{
"label" : "E" ,
"value" : 0.19434030906893
} ,
{
"label" : "F" ,
"value" : 98.079782601442
} ,
{
"label" : "G" ,
"value" : 13.925743130903
} ,
{
"label" : "H" ,
"value" : 5.1387322875705
}
] } ];
nv.addGraph(function() { var chart = nv.models.discreteBarChart()
.x(function(d) { return d.label })
.y(function(d) { return d.value })
.staggerLabels(true)
//.staggerLabels(historicalBarChart[0].values.length > 8)
.tooltips(false)
.showValues(true)
.transitionDuration(250)
;
d3.select('#chart1 svg')
.datum(historicalBarChart)
.call(chart);
nv.utils.windowResize(chart.update);
return chart; });
</script>
我的问题在这里:
historicalBarChart = [
{
key: "Cumulative Return",
values: [
{
"label" : "A" ,
"value" : 29.765957771107
} ,
{
"label" : "B" ,
"value" : 0
} ,
{
"label" : "C" ,
"value" : 32.807804682612
} ,
{
"label" : "D" ,
"value" : 196.45946739256
} ,
{
"label" : "E" ,
"value" : 0.19434030906893
} ,
{
"label" : "F" ,
"value" : 98.079782601442
} ,
{
"label" : "G" ,
"value" : 13.925743130903
} ,
{
"label" : "H" ,
"value" : 5.1387322875705
}
]
}
];
我想将我的 Json 值放在那里，我该怎么做？
这是我的 Json 文件，一个用于 X 轴，另一个用于 Y 轴:
X 轴:
{"periodos":["112","121","122","131","132","141"]}
Y 轴:
{"reprovados":["247","164","250","147","144","0"]}
如果有人可以尽可能完整地回答我，我将非常感激 =]
最佳答案
我不确定您需要哪种图表，因为您说您想要不同维度的值。我创建了一个图表，其中所有数据都处于同一维度......我想您将能够用它满足您的需求。
var json1 = {"periodos":["A","B","C","D","E","F","G","H","I"]};
var json2 = {"reprovados":["20","0","32.81","396.46","0.19","98.08","13.93","5.14","15.14"]};
var data = [{values: []}];
for(var i = 0; i < json1.periodos.length; i++){
data[0].values.push({
label: json1.periodos[i],
value: Number(json2.reprovados[i])
});
};
...
d3.select('#chart1 svg').datum(data)
...
关于javascript - 带 Json 的 NVD3 离散条形图，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23786628/