d3.js画折线图
下载d3.zip,并解压到网页文件所在的文件夹
windows下,在命令行进入网页文件夹,输入
python -m http.server
在浏览器中输入127.0.0.1:8000/xxx.html
示例如下,html文件和data存在同一个目录下
https://bl.ocks.org/mbostock/3884955
<!DOCTYPE html>
<meta charset="utf-8">
<style>
path {
stroke-width: 1;
fill: none;
} .axis--x {
shape-rendering: crispEdges;
} .axis--x line {
stroke: lightgrey;
}
.axis--x .minor {
stroke-opacity: .5;
} .axis--x path {
display: none; //draw a transparent line
}
.axis--y path {
fill: none;
stroke: #000;
}
.axis text {
font-family: sans-serif;
font-size: 8px;
} </style>
<body>
<svg width="600" height="225"></svg>
<script src="//d3js.org/d3.v4.min.js"></script>
<script> // basic svg setting
var svg = d3.select("svg"),
margin = {top: 20, right: 300, bottom: 50, left: 50},
width = svg.attr("width") - margin.left - margin.right,
height = svg.attr("height") - margin.top - margin.bottom;
g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")"); // set the x-axis as time axis. Do NOT use in this case.
// If you want to use this function, you can search it on-line.
//var parseTime = d3.timeParse("%Y%m%d"); //set x,y,z axis. Z axis means the twenty different color.
var x = d3.scaleLinear().range([0, width]),
y = d3.scaleLinear().range([height, 0]),
z = d3.scaleOrdinal(d3.schemeCategory20); //set the outlook of x and y axis //define a convenience function to create a line on the chart
var line = d3.line().curve(d3.curveBasis)
.x(function(d) { return x(d.step); })
.y(function(d) { return y(d.temperature); }); //read the data from tsv and draw line chart
d3.tsv("data.tsv", type, function(error, data) {
if (error) throw error; var cities = data.columns.slice(1).map(function(id) { //id means the name of city
return {
id: id,
values : data.map(function(d) {
return {step: d.step, temperature: d[id]};
})
};
}); //further set x-axis and y-axis
x.domain(d3.extent(data, function(d) { return d.step; }));
y.domain([0,300]);
z.domain(cities.map(function(c) { return c.id; })); var xAxis = d3.axisBottom(x).scale(x).tickSize(-height);
var yAxis = d3.axisLeft(y).scale(y).ticks(10); // X-AXIS LABEL
g.append("g")
.attr("class", "axis axis--x")
.attr("transform", "translate(0," + height + ")")
.call(xAxis)
.append("text")
.attr("x", width/2)
.attr("y", 18)
.style("text-anchor", "middle")
.style("fill", "#000")
.style("font-weight", "bold")
.text("x-axis label"); // Y-AXIS LABEL
g.append("g")
.attr("class", "axis axis--y")
.attr("transform", "translate(-15,0)")
.call(d3.axisLeft(y).ticks(4))
.append("text")
.attr("x", -(height/2))
.attr("y", -29)
.attr("dy", "0.32em")
.attr("transform", "rotate(-90)")
.style("text-anchor", "middle")
.style("fill", "#000")
.style("font-weight", "bold")
.text("y-axis label"); // ADD TITLE
g.append("text")
.attr("class", "title")
.attr("x", width/2)
.attr("y", 5 - (margin.top/2))
.attr("text-anchor", "middle")
.style("fill", "#000")
.style("font", "8px sans-serif")
.style("font-weight", "bold")
.text("TITLE"); var city = g.selectAll(".city")
.data(cities)
.enter().append("g")
.attr("class", "city"); //Draw the line and set the legend on the right of the chart ONE BY ONE
for (var i=0;i<cities.length-1;i++){ // DRAW THE LINE
city.append("path")
.attr("class", "line")
.attr("d", function(d) { return line(cities[i].values); })
.style("stroke", z(cities[i].id)); //color //settting of legend
var w = 10, //the vertical distance between neighbouring legend
l = -20, //left-most distance of the legend
r = 0, //right-most distance of the legend
t = -10; // up-most distance of the legend // draw the legend on the right of the chart
city.append("text")
.datum(function(d) { return {id: d.id, value: d.values[d.values.length - 1]}; })
.attr("transform", "translate(" + (margin.left + width +r) + ","
+ (w*i + margin.top + height/2 - w*cities.length/2 + t)
+ ")")
.attr("x", 3)
.attr("dy", "0.35em")
.style("font", "8px sans-serif")
.text(cities[i].id); // draw the short line of legend to identify each line in the line chart
city.append("line")
.attr("class", "line dataset-" + 0)
.style("stroke", z(cities[i].id))
.attr("stroke-width", "2")
.attr("x1", margin.left + width + l)
.attr("x2", margin.left + width + r)
.attr("y1", w*i + margin.top + height/2 -
w*cities.length/2 + t)
.attr("y2", w*i + margin.top + height/2 -
w*cities.length/2 + t);
} //In this case, a unique line chart need to be underscored.
//So, I draw the unique line separately with black.
var i = 3; //the unique line is the 3rd coloum city.append("path")
.attr("class", "line")
.attr("d", function(d) { return line(cities[i].values); })
.style("stroke", "#000000"); city.append("text")
.datum(function(d) { return {id: d.id, value: d.values[d.values.length - 1]}; })
.attr("transform", "translate(" + (margin.left + width + r) + ","
+ (w*i + margin.top + height/2 - w*cities.length/2 + t)
+ ")")
.attr("x", 3)
.attr("dy", "0.35em")
.style("font", "8px sans-serif")
.text(cities[i].id); city.append("line")
.attr("class", "line dataset-" + 0)
.style("stroke","#000000")
.attr("stroke-width", "2")
.attr("x1", margin.left + width + l)
.attr("x2", margin.left + width + r)
.attr("y1", w*i + margin.top + height/2 -
w*cities.length/2 + t)
.attr("y2", w*i + margin.top + height/2 -
w*cities.length/2 + t); }); //get the tsv file data
function type(d, _, columns) {
d.step = +d.step;
for (var i = 1, n = columns.length, c; i < n; ++i) d[c = columns[i]] = +d[c];
return d;
} </script>
</body>
d3.js画折线图的更多相关文章
- echars画折线图的一种数据处理方式
echars画折线图的一种数据处理方式 <!DOCTYPE html> <html> <head> <meta charset="utf-8&quo ...
- python中matplotlib画折线图实例(坐标轴数字、字符串混搭及标题中文显示)
最近在用python中的matplotlib画折线图,遇到了坐标轴 "数字+刻度" 混合显示.标题中文显示.批量处理等诸多问题.通过学习解决了,来记录下.如有错误或不足之处,望请指 ...
- SAS 画折线图PROC GPLOT
虽然最后做成PPT里的图表会被要求用EXCEL画,但当我们只是在分析的过程中,想看看数据的走势,直接在SAS里画会比EXCEL画便捷的多. 修改起来也会更加的简单,,不用不断的修改程序然后刷新EXCE ...
- Matplotlib学习---用matplotlib画折线图(line chart)
这里利用Jake Vanderplas所著的<Python数据科学手册>一书中的数据,学习画图. 数据地址:https://raw.githubusercontent.com/jakevd ...
- 使用OpenCV画折线图
使用OpenCV画直方图是一件轻松的事情,画折线图就没有那么Easy了,还是使用一个库吧: GraphUtils 源代码添加入工程 原文链接:http://www.360doc.com/content ...
- D3.js力导向图(适用于其他类型图)中后添加元素遮盖已有元素的问题解决
上一篇说了在D3.js中动态增加节点及连线的一种实现方式,但是有后添加元素遮盖原节点的现象,这一篇说一下出现这个现象的解决办法. 在D3.js中后添加的元素是会遮盖先添加的元素的,同时还有一个设定:后 ...
- D3.js 力导向图的显示优化
D3.js 作为一个前端,说到可视化除了听过 D3.js 的大名,常见的可视化库还有 ECharts.Chart.js,这两个库功能也很强大,但是有一个共同特点是封装层次高,留给开发者可设计和控制的部 ...
- D3.js画思维导图(转)
思维导图的节点具有层级关系和隶属关系,很像枝叶从树干伸展开来的形状.在前面讲解布局的时候,提到有五个布局是由层级布局扩展来的,其中的树状图(tree layout)和集群图(cluster layou ...
- 用D3.js画树状图
做项目遇到一个需求,将具有层级关系的词语用树状图的形式展示它们之间的关系,像这样: 或者是这样: 上面的图片只是样例,跟我下面的代码里面用的数据不同 网上有很多这种数据可视化展示的js控件,我这里选择 ...
随机推荐
- Mysql将查询结果合并为一列
利用函数:group_concat(),实现一个ID对应多个名称时,原本为多行数据,把名称合并成一行. 完整的语法如下: group_concat([DISTINCT] 要连接的字段 [Order B ...
- Java爬虫——常用的maven依赖
java实现爬虫常用的第三方包: httpclient,for http jsoup,for dom rhino,for js jackson,for json pom.xml摘录 <depen ...
- windown 下最简单的安装mysql方式
最近自己的mysql要升级,需要重新安装mysql,官网有提供傻瓜式的安装方式.. 记得下载.msi的格式.这个安装最简单.
- fair scheduler配置
<property> <name>yarn.resourcemanager.scheduler.class</name> <value>or ...
- MFC列表控件更改一行的字体颜色
参考自(http://blog.csdn.net/ribut9225/article/details/6720639) 1.首先从CListCtrl 继承一个类,命名为CListCtrlCl 在头文件 ...
- 《转》完美解决微信video视频隐藏控件和内联播放问题
地址:https://blog.csdn.net/xiao190128/article/details/81025378 var u = navigator.userAgent; var isAndr ...
- ERROR: 9-patch image C:\...\res\drawable\appwidget.9.png malformed. Frame pixels must be either solid or transparent (not intermediate alphas).
this is the problem with latest adt that is 20.0.3. you can instead rename the *.9.png to *.png and ...
- JDK、CGlib动态代理详解
Java动态代理之JDK实现和CGlib实现(简单易懂) 一 JDK和CGLIB动态代理原理 1.JDK动态代理 利用拦截器(拦截器必须实现InvocationHanlder)加上反射机制生 ...
- 生成器函数yield
先看一个栗子: # -*- coding:UTF-8 -*- __autor__ = 'zhouli' __date__ = '2018/12/6 21:08' # 生成器函数,函数里只要有yield ...
- 机器学习入门:Linear Regression与Normal Equation -2017年8月23日22:11:50
本文会讲到: (1)另一种线性回归方法:Normal Equation: (2)Gradient Descent与Normal Equation的优缺点: 前面我们通过Gradient Desce ...