码迷,mamicode.com
首页 > 其他好文 > 详细

[D3] Create Chart Axes with D3 v4

时间:2017-08-07 19:31:20      阅读:135      评论:0      收藏:0      [点我收藏+]

标签:append   margin   create   values   transform   value   har   form   color   

Most charts aren’t complete without axes to provide context and labeling for the graphical elements being displayed. This lesson introduces D3’s APIs for creating, customizing, and displaying axes while building on topics from previous lessons.

 

var margin = { top: 10, right: 20, bottom: 60, left: 25 };
var width = 425 - margin.left - margin.right;
var height = 625 - margin.top - margin.bottom;

var svg = d3.select(‘.chart‘)
  .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})`);

svg.append(‘rect‘)
  .attr(‘width‘, width)
  .attr(‘height‘, height)
  .style(‘fill‘, ‘lightblue‘)
  .style(‘stroke‘, ‘green‘);

  /**
   * Create Y axis
   */
  // Set scale
  const yScale = d3.scaleLinear()
                    .domain([0, 100])
                    .range([height, 0]);
  // add y-axis  
  const yAxis = d3.axisLeft(yScale);
  // const yAxis = d3.axisLeft(yScale).ticks(10, ‘.1s‘);
  // If you want to add fine control about the ticks:
  // const yAxis = d3.axisLeft(yScale).tickValues([5,10,30,50,80,100]);
  // add to the svg
  svg.call(yAxis);    


  /**
   * Create X axis
   */
  const xScale = d3.scaleTime()
    .domain([new Date(2017, 6, 1),  new Date(2017, 7, 1)])
    .range([0, width]);

    //https://github.com/d3/d3-time
  const xAxis = d3.axisBottom(xScale)
    .ticks(d3.timeDay.every(4))
    .tickSize(10)
    .tickPadding(15);

  svg.append(‘g‘)
        .attr(‘transform‘, `translate(0, ${height})`)
     .call(xAxis);   
  

  

 

 

[D3] Create Chart Axes with D3 v4

标签:append   margin   create   values   transform   value   har   form   color   

原文地址:http://www.cnblogs.com/Answer1215/p/7300735.html

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!