Javascript 带Json的NVD3离散条形图
我试图将一个json文件放入NVD3条形图中,但我无法完成我想要的操作。我对JS了解不多,但我正在努力为学校的期末项目学习,所以请帮助=] 下面是我从一个例子中得到的代码:Javascript 带Json的NVD3离散条形图,javascript,json,d3.js,nvd3.js,Javascript,Json,D3.js,Nvd3.js,我试图将一个json文件放入NVD3条形图中,但我无法完成我想要的操作。我对JS了解不多,但我正在努力为学校的期末项目学习,所以请帮助=] 下面是我从一个例子中得到的代码: <!DOCTYPE html> <meta charset="utf-8"> <link href="../src/nv.d3.css" rel="stylesheet" type="text/css"> <style> body { overflow-y:scrol
<!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>
我想把我的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:[112121122131132141]}
Y轴:
{reprovados:[247164250147144,0]}
如果有人能尽可能完整地回答我,我将非常感谢=]我不确定您需要什么样的图形,因为您说您需要不同维度的值。我创建了一个图表,所有数据都在同一维度上。。。我想你可以用它来满足你的需求
periodos中的值应该是x上的描述,而reprovados中的值应该是条的大小,这很好,只是名称有误。如何将periodos值放置在x轴上?顺便说一句,谢谢你,伙计!你真是个天才哈哈哈我完全明白。。。更新了演示。。。thx对于恭维Thansk,现在已经很完美了哈哈,我怎么能从文件中传递json值,而不是在变量上写入呢?!更新。。。重要行:value:Numberjson1.periodos[i]
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
}
]
}
];
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)
...