本文介绍了堆叠条形图标签 - D3的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在向d3中的堆叠条形图添加数据标签。
我想将数据标签放在栏的中间。到目前为止,我只是想出了如何在每个栏的顶部添加数据标签。
这是我的代码:
var width = 750,
pre>
height = 500;
var x = d3.scale.ordinal()
.rangeRoundBands([0,width],.1);
var y = d3.scale.linear()
.rangeRound([height,0]);
var color = d3.scale.ordinal()
.range([#D70B16,#154CEF,#1A8A55]);
var xAxis = d3.svg.axis()
.scale(x)
.orient(bottom);
var yAxis = d3.svg.axis()
.scale(y)
.orienta(left)
.tickFormat(d3.format .2s));
var tip = d3.tip()
.attr('class','d3-tip')
.offset([ - 10,0])
.html(function(d){
returnValue:+(d.y1 - d.y0)+;
})
var svgContainer = d3 .select(body)
.append(svg)
.attr(width,width)
.attr(height,height)
.append (g)
.attr(transform,translate(+ 30 +,+ 30 +));
d3.csv(data.csv,function(error,data){
color.domain(d3.keys(data [0])。filter (key){
return key!==circle;
}));
data.forEach(function(d){
var y0 = 0 ;
d.hours = color.domain()。map(function(name){
return {name:name,y0:y0,y1:y0 + = + d [name]};
});
d3.select('body')。append('pre')
.text(JSON.stringify(d.hours,null,''));
d.total = d.hours [d.hours.length - 1] .y1;
});
x.domain(data.map function(d){return d.circle;}));
y.domain([0,d3.max(data,function(d){return d.total;})]
svgContainer.append(g)
.attr(class,x axis)
.attr(transform,translate(0,+ height +) )
.call(xAxis);
svgContainer.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
var circle = svgContainer.selectAll(。circle)
.data(data)
.enter()。append(g)
.attr (class,g)
.attr(transform,function(d){
returntranslate(+ x(d.circle)+,0);
});
circle.selectAll(rect)
.data(function(d){return d.hours;})
.enter()
.append rect)
.attr(width,x.rangeBand())
.attr(y,function(d){return y(d.y1);})
.attr(height,function(d){return y(d.y0)-y(d.y1);})
.on(mouseover,tip.show)
。 on(mouseout,tip.hide)
.style(fill,function(d){return color(d.name);});
circle.selectAll(text)
.data(function(d){return d.hours;})
.enter b .append(text)
.attr(x,75)
.attr(y,function(d,i){return y(d.y1);})
.style(text-anchor,middle)
.text(test)
})
数据:
,value1,value2,value3
state1,80,10,20
state2,90,5,10
state3,70,15,35
state4,90,3,27
state5,50,25,55
state6,85,8,27
我实际上不知道如何获得X&
帮助我安排每个栏中间的标签。 >解决方案
您只需要调整
text
元素的y
circle.selectAll(text)
.data(function(d){return d.hours;} )
.enter()
.append(text)
.attr(x,75)
.attr(y,function(d,i) {return y(d.y1)+(y(d.y0)-y(d.y1))/ 2;})
.style(text-anchor,middle)
.text(test)
I'm trying to add data labels to stacked bar chart in d3.
I wanted the data labels to be in the middle of the bar. So far i just figured out how to add data labels on top of each bar. But actually i wanted those labels to be in the middle of each bar.
Here's my code :
var width = 750, height = 500; var x = d3.scale.ordinal() .rangeRoundBands([0, width], .1); var y = d3.scale.linear() .rangeRound([height, 0]); var color = d3.scale.ordinal() .range(["#D70B16", "#154CEF", "#1A8A55"]); var xAxis = d3.svg.axis() .scale(x) .orient("bottom"); var yAxis = d3.svg.axis() .scale(y) .orienta("left") .tickFormat(d3.format(".2s")); var tip = d3.tip() .attr('class', 'd3-tip') .offset([-10, 0]) .html(function(d) { return "Value: " + (d.y1 - d.y0) + ""; }) var svgContainer = d3.select("body") .append("svg") .attr("width", width) .attr("height", height) .append("g") .attr("transform", "translate(" + 30 + "," + 30 + ")"); d3.csv("data.csv", function(error, data) { color.domain(d3.keys(data[0]).filter(function(key) { return key !== "circle"; })); data.forEach(function(d) { var y0 = 0; d.hours = color.domain().map(function(name) { return {name: name, y0: y0, y1: y0 += +d[name]}; }); d3.select('body').append('pre') .text(JSON.stringify(d.hours, null, ' ')); d.total = d.hours[d.hours.length - 1].y1; }); x.domain(data.map(function(d) {return d.circle;})); y.domain([0, d3.max(data, function(d) {return d.total;})]) svgContainer.append("g") .attr("class", "x axis") .attr("transform", "translate(0," + height + ")") .call(xAxis); svgContainer.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("Login Hours"); var circle = svgContainer.selectAll(".circle") .data(data) .enter().append("g") .attr("class", "g") .attr("transform", function(d) { return "translate(" + x(d.circle) + ",0)"; }); circle.selectAll("rect") .data(function(d) { return d.hours; }) .enter() .append("rect") .attr("width", x.rangeBand()) .attr("y", function(d) { return y(d.y1); }) .attr("height", function(d) { return y(d.y0) - y(d.y1); }) .on("mouseover", tip.show) .on("mouseout", tip.hide) .style("fill", function(d) { return color(d.name); }); circle.selectAll("text") .data(function(d) { return d.hours; }) .enter() .append("text") .attr("x", 75) .attr("y", function(d, i) { return y(d.y1) ; }) .style("text-anchor", "middle") .text("test") })
Data :
state,value1, value2, value3 state1, 80, 10, 20 state2, 90, 5, 10 state3, 70, 15, 35 state4, 90, 3, 27 state5, 50, 25, 55 state6, 85, 8, 27
I actually couldn't figure out how to get the mid point of X & Y co-ordinates of each bar.
Help me in arranging the labels in the middle of each bar.
解决方案You just need to adjust the
y
coordinate of thetext
elements:circle.selectAll("text") .data(function(d) { return d.hours; }) .enter() .append("text") .attr("x", 75) .attr("y", function(d, i) { return y(d.y1) + (y(d.y0) - y(d.y1))/2; }) .style("text-anchor", "middle") .text("test")
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