我需要使用D3.JS直观显示JSON数据的帮助。我可以让图表显示,但我的问题是这些条形图堆叠起来而不是根据它们显示的类别转换成组。您可以在下面找到我的代码以及指向当前输出的screengrab以及即时使用的JSON文件的链接。
链接到screengrab: http://tinypic.com/view.php?pic=15x6anl&s=8#.VH3C5HWSw8o
这是我的代码:
$(document).ready(function(){
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x0 = d3.scale.ordinal()
.rangeRoundBands([0, width], .1);
var x1 = d3.scale.ordinal();
var y = d3.scale.linear()
.range([height, 0]);
var color = d3.scale.ordinal()
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var xAxis = d3.svg.axis()
.scale(x0)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.tickFormat(d3.format(".2s"));
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
d3.json("ronaldo.json", function(error, data) {
console.log(data);
var playerNames = []
data.forEach(function(d){playerNames.push(d.name)})
var attr = [];
data[0]['statistics']['2005'].forEach(function(d){return attr.push(d.attr)})
console.log(attr)
x0.domain(attr.map(function(d){return d}));
//x0.domain(data.map(function(d){return d['statistics']['2005']['attr']}));
x1.domain(playerNames).rangeRoundBands([0, x0.rangeBand()]);
y.domain([0, d3.max(data, function(d) { return d3.max(d["statistics"]["2005"], function(d) { return d.value; }); })]);
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.text("Units");
var state = svg.selectAll(".state")
.data(data)
.enter().append("g")
.attr("class", "g")
.attr("transform", function(d) { return "translate(" + x0(+d['statistics']['2005']['attr']) + ",0)"; });
state.selectAll("rect")
.data(function(d) { return d['statistics']['2005']; })
.enter().append("rect")
.attr("class","bars")
.attr("width", x1.rangeBand())
.attr("x", function(d) { return x1(d['attr']); })
.attr("y", function(d) { return y(d.value); })
.attr("height", function(d) { return height - y(d['value']); })
.style("fill", function(d) { return color(d.attr);});
var legend = svg.selectAll(".legend")
.data(playerNames.slice())
.enter().append("g")
.attr("class", "legend")
.attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });
legend.append("rect")
.attr("x", width - 18)
.attr("width", 18)
.attr("height", 18)
.style("fill", color);
legend.append("text")
.attr("x", width - 24)
.attr("y", 9)
.attr("dy", ".35em")
.style("text-anchor", "end")
.text(function(d) { return d; });
});
});
JSON数据:
[
{
"name": "Cristiano Ronaldo",
"age" : 28,
"team": "Real Madrid",
"statistics" : {
"2005" : [
{"attr" :"Appearances",
"value": 100},
{"attr" :"Goals",
"value": 92},
{"attr" :"Yellow Cards",
"value": 10},
{"attr" :"Red Cards",
"value": 1}
]
}
},
{
"name": "Lionel Messi",
"age" : 29,
"team": "Barcelona",
"statistics" : {
"2005" : [
{"attr" :"Appearances",
"value": 90},
{"attr" :"Goals",
"value": 87},
{"attr" :"Yellow Cards",
"value": 13},
{"attr" :"Red Cards",
"value": 43}
]
}
}
]
答案 0 :(得分:0)
我不明白为什么你有x0
和x1
尺度但你的问题就在这里。
您应该只使用一个比例尺:
x1
后小心覆盖xAxis的比例).attr("x", function(d) { return x1(d['attr']); })
我用我建议的解决方案制作了一个小jsFiddle,但由于我不知道你想要看到什么,我不确定它是完美的:http://jsfiddle.net/chrisJamesC/uzmur5kb/
我所做的只是:将.attr("x", ...)
行更改为:
.attr("x", function(d) { return x0(d['attr']); })