Tips for aligning ticks to the left on a d3 bar chart

i recently finished creating a stacked bar graph with varying tick lengths on the y-axis side. my goal is to align the text within the ticks to the left, similar to this example: http://jsfiddle.net/2khbceut/2/

here is the HTML:

<title>Diverging Stacked Bar Chart with D3.js</title>
<body>
    <div id="figure" align="center" style="margin-bottom: 50px;"></div>
</body>

Javascript:

$(document).ready(getTopolegy());

function getTopolegy(){
      var data = null;
        var links = parseTopology(data);
        createChart(links);
}

function parseTopology(data){
  var links=[{1:5,2:5,3:10,N:20,link_name: "Link CHGIL21CRS-SFXCA21CRS"},
            {1:5,2:5,3:10,N:20,link_name: "Link NYCNY21CRS-NYCNY22CRS"}];

  return links;  
}
...

I attempted to adjust the text alignment using the following code snippet:

 svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
  .selectAll("text")
    .style("text-anchor", "start");

however, this did not achieve the desired outcome of left-aligning the tick text. Any suggestions or ideas?

Answer №1

To adjust the Y axis to be right-oriented, causing all labels to align to the right of the axis while still left-aligning them:

var yAxis = d3.svg.axis()
  .scale(y)
  .orient("right")// <- First step

Initially, the labels will disappear as they will be hidden by the bars on the graph.

To counter this, you can shift the left-aligned labels a certain distance in the negative X direction, bringing them back to the left side of the Y axis while maintaining the desired left alignment. Use tickPadding() to achieve this:

var yAxis = d3.svg.axis()
  .scale(y)
  .orient("right")
  .tickPadding(-180)

Take a look at your updated example here: http://jsfiddle.net/2khbceut/3/

If hardcoding the -180 works for you, that's great. For dynamic adjustment, consider using getBBox() on each text element of the axis to calculate the required offset based on maximum width.

Answer №2

To align the text-anchor to "start" and move the x position using translate, you can insert the following lines of code within the chart model "boxPlotChart.js":

 g.select('.nv-y.nv-axis').selectAll('.tick').selectAll('text')
                .style('text-anchor','start')
                .attr('transform', function(d,i,j) { return 'translate(-14,0)' });

 g.select('.nv-y.nv-axis').selectAll('.nv-axisMaxMin').selectAll('text')
                .style('text-anchor','start')
                .attr('transform', function(d,i,j) { return 'translate(-16,0)' });

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