我正在尝试从 id 为“ csvdata ”的元素导入条形图中的数据,而不是从外部.csv文件以传统方式加载它,这一次只是为了测试......
我已经制作了一个“ pre ”元素,如上所述给了他 id,更改了脚本的一部分,我在其中加载了看起来像这样的外部 csv 数据
d3.csv("data.csv", function(error, data).....
进入这个
d3.csv("#csvdata", function(error, data).....
并且 d3 成功加载了 d3 文档,但没有以正确的方式显示数据......在我看来,我需要对数据进行某种排序转换或解析,我不太确定,所以我需要你的帮助......
你可以在这里看到我目前的情况:http: //jsfiddle.net/dzorz/r26b9/
这是html代码:
<pre id="csvdata" style="display:none">
Year,Outcome,Income,+5%
2013,52083,85640,42153
2014,60000,90000,50000
2015,7000,100000,260000
2016,8000,110000,270000
2017,9000,120000,280000
2018,10000,130000,290000
2019,11000,140000,300000
2020,12000,150000,310000
2021,13000,160000,320000
2022,310504,552339,259034
2023,310504,552339,259034
</pre>
脚本:
var margin = {top: 20, right: 20, bottom: 30, left: 40},
width = 700 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var x = d3.scale.ordinal()
.rangeRoundBands([0, 500], .3);
var y = d3.scale.linear()
.rangeRound([height, 0]);
var color = d3.scale.ordinal()
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var xAxis = d3.svg.axis()
.scale(x)
.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.csv("#csvdata", function(error, data) {
color.domain(d3.keys(data[0]).filter(function(key) { return key !== "Year"; }));
data.forEach(function(d) {
var y0 = 0;
d.ages = color.domain().map(function(name) { return {name: name, y0: y0, y1: y0 += +d[name]}; });
d.total = d.ages[d.ages.length - 1].y1;
});
data.sort(function(a, b) { return a.total - b.total; });
x.domain(data.map(function(d) { return d.Year; }));
y.domain([0, d3.max(data, function(d) { return d.total; })]);
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("Total");
var year = svg.selectAll(".year")
.data(data)
.enter().append("g")
.attr("class", "g")
.attr("transform", function(d) { return "translate(" + x(d.Year) + ",0)"; });
year.selectAll("rect")
.data(function(d) { return d.ages; })
.enter().append("rect")
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.y1); })
.attr("height", 0)
.transition()
.duration(1000)
.attr("height", function(d) { return y(d.y0) - y(d.y1); })
.style("fill", function(d) { return color(d.name); });
var legend = svg.selectAll(".legend")
.data(color.domain().slice().reverse())
.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; });
});
和CSS样式:
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.bar {
fill: steelblue;
}
.x.axis path {
display: none;
}
您可以自由编辑我上面链接的 jsfiddle,欢迎提供任何帮助或建议