Up until now we've just looked at bar charts. A handy chart, no doubt, but D3 offers a variety of charts you can work with. In this lesson we'll convert the bar chart into a basic scatter (or bubble) chart.

<!DOCTYPE html>

<html>

<head lang="en">

    <meta charset="UTF-8">

    <title></title>

    <script src="../bower_components/underscore/underscore-min.js"></script>

    <script src="../ventor/d3.min.js"></script>

    <style type="text/css">

        body

        {

            padding-top: 50px;

            padding-left: 100px;

        }

        #chartArea {

            width: 400px;

            height: 300px;

            background-color: #CCC;

        }

        .bar

        {

            display: inline-block;

            width: 20px;

            height: 75px; /* Gets overriden by D3-assigned height below */

            margin-right: 2px;

           /* fill: teal; *//* SVG doesn't have background prop, use fill instead*/

            z-index:99;

        }

        .bubble {

            display: inline-block;

            fill: purple;

            fill-opacity: 0.5;

            stroke: black;

            stroke-weight: 1px;

        }

    </style>

</head>

<body>

<section id="chartArea"></section>

<script>

    var dataset = _.map(_.range(30), function(num) {

        return {

            x: Math.random() * 100,

            y: Math.random() * 100,

            r: Math.random() * 30

        }

    }), //reandom generate 15 data from 1 to 50

            margin = {top: 0, bottom: 0, left: 0, right: 0},

            w = 400 - margin.left - margin.right,

            h = 300 -margin.top - margin.bottom;

    var svg = d3.select('#chartArea').append('svg')

            .attr('width', w + margin.left + margin.right)

            .attr('height', h + margin.top + margin.bottom)

            .append('g') //The last step is to add a G element which is a graphics container in SBG.

            .attr('transform', 'translate(' + margin.left + ', ' + margin.top + ')'); //Then offset that graphic element by our left and top margins.

    var yScale = d3.scale.linear()

            .domain([0, d3.max(dataset, function(d) {

                return d.y; //tell the max function just need to care about y prop

            })])

            .range([h, 0]);

    var xScale = d3.scale.linear()

            .domain([0, 100])

            .range([0, w]);

    svg.selectAll('circle')

            .data(dataset)

            .enter()

            .append('circle')// svg doesn't have div, use rect instead

            .attr('class', "bubble")

            .attr('cx', function(each_data, index){

                return xScale(each_data.x);

            })

            .attr('cy', function(each_data){

                return yScale(each_data.y);

            })

            .attr('r', function(each_data, i){

                return each_data.r;

            });

</script>

</body>

</html>

[D3] 9. Scatter Plot的更多相关文章

  1. [D3] Build a Scatter Plot with D3 v4

    Scatter plots, sometimes also known as bubble charts, are another common type of visualization. They ...

  2. Matplotlib学习---用matplotlib画散点图，气泡图（scatter plot, bubble chart）

    Matplotlib里有两种画散点图的方法,一种是用ax.plot画,一种是用ax.scatter画. 一. 用ax.plot画 ax.plot(x,y,marker="o",co ...

  3. [Python] Scatter Plot for daily return

    Sploe = 2: means that SPY move up 1, ABC move up 2 Correlation: how close those dots close to the li ...

  4. use matplotlib to draw scatter plot

    There are many pionts in this kind of table. How to do it? We can use scatter() to draw it. Code: im ...

  5. D3 JS study notes

    如何使用d3来解析自定义格式的数据源? var psv = d3.dsvFormat("|"); // This parser can parse pipe-delimited t ...

  6. d3基础图形模板笔记

    散点图(scatter plot): http://bl.ocks.org/weiglemc/6185069 雷达图(radar): http://xgfe.github.io/uploads/che ...

  7. matplotlib多plot可视化

    代码: # -*- coding: utf-8 -*- """ Created on Thu Jul 12 16:37:47 2018 @author: zhen &qu ...

  8. Python基础-画图：matplotlib.pyplot.scatter

    转载自博客:https://blog.csdn.net/qiu931110/article/details/68130199 matplotlib.pyplot.scatter 1.scatter函数 ...

  9. Python中scatter函数参数用法详解

    1.scatter函数原型 2.其中散点的形状参数marker如下: 3.其中颜色参数c如下: 4.基本的使用方法如下: #导入必要的模块 import numpy as np import matp ...

随机推荐

  1. BZOJ3190[JLOI2013]赛车

    Description 这里有一辆赛车比赛正在进行,赛场上一共有N辆车,分别称为个g1,g2--gn.赛道是一条无限长的直线.最初,gi位于距离起跑线前进ki的位置.比赛开始后,车辆gi将会以vi单位 ...

  2. 微软CSS面试全记录

    先是会有一轮简单的电话技术面试,聊的比较随意,什么都会问,跟职位相关的都有.然后会发一些材料说是要学习,是windows内存管理相关的东西. 完了就是一轮oral test,和技术没有任何关系,问问为 ...

  3. bzoj 1902: Zju2116 Christopher lucas定理 && 数位DP

    1902: Zju2116 Christopher Time Limit: 1 Sec  Memory Limit: 64 MBSubmit: 172  Solved: 67[Submit][Stat ...

  4. JavaWeb学习总结(一)——JavaWeb开发入门（转载）

    转载自http://www.cnblogs.com/xdp-gacl/p/3729033.html感谢孤傲苍狼的分享. 一.基本概念 1.1.WEB开发的相关知识 WEB,在英语中web即表示网页的意 ...

  5. SDUT 2351 In Danger

    点我看题目 题意 : 有n个兵想要自杀,所以他们决定围成一个圈,从1开始一直环到n,然后每第2个开始自杀,但是有一个兵不想死,所以让你编程求出最后一个应该死的人的位置,这样的话就剩他自己他可以不自杀了 ...

  6. iOS设备下添加button的按下效果

    在触屏上, button的按下效果用:active触发, 但是我发现iOS设备上:active效果并没有生效. :active pseudo-class doesn't work in mobile ...

  7. logstash date插件

    [elk@dr-mysql01 api-access]$ date Wed Nov 30 19:21:35 CST 2016 [elk@dr-mysql01 api-access]$ [elk@dr- ...

  8. asp.net EasyUI DataGrid 实现增删改查

    转自:http://www.cnblogs.com/create/p/3410314.html 前台代码: <!DOCTYPE html> <html xmlns="htt ...

  9. Tree HDOJ--2682

    Tree Time Limit: 6000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submis ...

  10. HDU-1406 完数

    http://acm.hdu.edu.cn/showproblem.php?pid=1406 完数 Time Limit: 2000/1000 MS (Java/Others)    Memory L ...