How to get Highcharts X-Axis Categories starting a

问题:

I have a Highcharts area chart, with string categories on the X-Axis. I want the chart to start at the left most edge of the x-axis and end at the rightmost edge, without any padding. In the image below, the red arrows show the spacing that I want to get rid of. Without text categories this is easily achievable, but with I just can't seem to figure it out. Any help appreciated, thanks.

回答1:

You can achieve the desired result by redefining labels.formatter on axis. jsFiddle is here.

But if you want to keep it simple and pass axis.categories in traditional way (I think that this is a way more better), I suggest you to use a tiny hack and redefine an Axis.init function. Try it on jsFiddle.

UPD: I've updated my previous fiddle a little. Check it out. I think that you can combine all my solution to get a nicer one.

回答2:

You can use spacingLeft and spacingRight to set the spacing:

chart: {
         renderTo: 'chart1',
         type: 'area',
         spacingLeft: -21,      
         spacingRight: -21,      
         spacingBottom: 1
},

回答3:

A cleaner solution is to use the pointPlacement reference provided in the Highchart API.

Add pointPlacement: 'on' and you should be in business. (For reference, here is their example JSFiddle)

回答4:

Just add:

...
xAxis: {
  startOnTick: true,
  ...
},
...

回答5:

You need the following settings.

xAxis: {           
  plotLines: [{
    value: 0, 
    color: '#color'
  }],
  tickmarkPlacement: 'on'
},
yAxis: {           
  lineWidth: 0,
}