Javascript d3.js - 在堆叠图上移动 y 轴

d3.js - shifting y-axis on stacked graph chart

提问by Apollo

I also posted this question on the Google Group https://groups.google.com/forum/?fromgroups#!topic/d3-js/DYiVeC544ws, but saw that it prefers that help questions are asked here. I'm just having trouble shifting the y-axis to the left of my graph to so that it does not get in the way of the first column. I provided an image on the google group so you can see what I'm talking about.

我也在 Google Group https://groups.google.com/forum/?fromgroups#!topic/d3-js/DYiVeC544ws上发布了这个问题，但看到它更喜欢在此处提出帮助问题。我只是在将 y 轴移动到我的图表左侧时遇到了麻烦，这样它就不会妨碍第一列。我在 google group 上提供了一张图片，所以你可以看到我在说什么。

The code to create the axis is as follows:

创建轴的代码如下：

   var MARGINS = {top: 20, right: 20, bottom: 20, left: 60}; // margins around the graph
var xRange = d3.scale.linear().range([MARGINS.left, width - MARGINS.right]), // x range function
    yRange = d3.scale.linear().range([height - MARGINS.top, MARGINS.bottom]), // y range function

    xAxis = d3.svg.axis().scale(xRange).tickSize(16).tickSubdivide(true), // x axis function
    yAxis = d3.svg.axis().scale(yRange).tickSize(10).orient("right").tickSubdivide(true); // y axis function


// create the visualization chart
var vis = d3.select("#chart")
   .append("svg")
    .attr("width", width)
    .attr("height", height + margin);


    // add in the x axis
  vis.append("svg:g") // container element
    .attr("class", "x axis") // so we can style it with CSS
    .attr("transform", "translate(0," + height + ")") // move into position
   // .call(xAxis); // add to the visualisation

  // add in the y axis
  vis.append("svg:g") // container element
    .attr("class", "y axis") // so we can style it with CSS
    .call(yAxis); // add to the visualisation

回答by mbostock

Use the transform attributeto shift the y-axis, just as you did for the x-axis. For example:

使用transform 属性移动 y 轴，就像您对 x 轴所做的一样。例如：

svg.append("g")
    .attr("class", "y axis")
    .attr("transform", "translate(" + width + ",0)")
    .call(yAxis);

This is only necessary when using right orientation. When the axis is oriented to the left, the default positioning is typically fine.

这仅在使用正确方向时才需要。当轴指向左侧时，默认定位通常很好。

Also, I recommend using the following convention for margins:

另外，我建议对边距使用以下约定：

• Set the origin of the SVG element to the top-left corner of the inner chart area.
• Define widthand heightas the inner width and height.

• 将 SVG 元素的原点设置为内部图表区域的左上角。
• 定义width和height作为内部宽度和高度。

For example:

例如：

var margin = {top: 20, right: 10, bottom: 20, left: 10},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var x = d3.scale.linear()
    .range([0, width]);

var y = d3.scale.linear()
    .range([height, 0]);

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 + ")");

If you prefer, you could also store the inner and outer dimensions, e.g.,

如果您愿意，您还可以存储内部和外部尺寸，例如，

var outerWidth = 960,
    outerHeight = 500,
    innerWidth = outerWidth - margin.left - margin.right,
    innerHeight = outerHeight - margin.top - margin.bottom;

Here's a visual explanation of the convention:

这是公约的视觉解释：

• http://bl.ocks.org/3019563

• http://bl.ocks.org/3019563