rotate x axis labels in ios-charts

Question

I know label rotation is not supported in ios-charts. Any issue asking for this is promptly closed however this is a very basic feature. I've seen people posts about how to do it in MPAndroidChart (which this is based on) but those solutions appear to be Android specific. Does anyone know of a way to get 45 or 90 degree labels rotations for a bar chart in iOS-charts?

take a look at http://stackoverflow.com/questions/10289898/drawing-rotated-text-with-nsstring-drawinrect and http://stackoverflow.com/questions/30089756/rotating-nsstring-in-swift — Wingzero, Oct 13 '15 at 01:56
thanks, while good for rotating text in general, it doesn't really help in this specific framework, which is what I'm trying to do. — rjb101, Oct 13 '15 at 19:11
They share the same strategy, why won't it work? All using CG — Wingzero, Oct 14 '15 at 01:36
the problem is I don't see individual labels exposed via the API, maybe if I start hacking the framework then yes I could use standard methods — rjb101, Oct 18 '15 at 09:14

score 8 · Answer 1 · edited May 09 '23 at 07:18

8

To rotate a label you need to do the following:

someChartView.xAxis.labelRotationAngle = CGFloat(rotationAngle) // -90.0 or -45.0

Examples:

barChartView.xAxis.labelRotationAngle = -45.0 
lineChartView.xAxis.labelRotationAngle = -90.0

edited May 09 '23 at 07:18

rptwsthi

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answered Jul 22 '18 at 19:11

DoesData

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daniel.gindi · Accepted Answer · 2015-10-28T20:42:26.140

4

First - let me emphasize that you are very wrong:

MPAndroidChart existed for a long time without any issue about rotating x-axis labels, so there wasn't a need for anyone.
In ios-Charts there was one issue about it, tagged as a feature request, and pending until yesterday (Oct 11). There was one other opened recently, marked as duplicate issue.

Secondly:
I've implemented this feature in the latest master. Please pull from master until there's a version release.

edited Oct 28 '15 at 20:42

answered Oct 28 '15 at 09:17

daniel.gindi

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awesome. I assume cocoapods will pick that up too? – rjb101 Oct 28 '15 at 13:11
Yes, the moment we make a release version :-) – daniel.gindi Oct 28 '15 at 16:42
I'm probably blind but I don't see it. Is it in ChartXAxis? – rjb101 Oct 28 '15 at 16:49
I see the method in ChartXAxis master but not in the 2.1.5 tag – rjb101 Oct 28 '15 at 16:59
As I've said: "Please pull from master until there's a version release." – daniel.gindi Oct 28 '15 at 20:42
Hello. Is there any possibility to make the label multiline? I really need to show really long texts as the description of the xAxis of the HorizontalBarChart and even worse is the fact that I need it to be located to the left from the chart itself. Adding a long text just shifts and compresses the chart – AOY Jul 13 '16 at 11:03
Use "\n", or set `wordWrapEnabled` to true – daniel.gindi Jul 13 '16 at 11:42
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Hi guys use it barChartView.xAxis.labelRotationAngle = -90 – Ravikant Jan 19 '17 at 17:04

rotate x axis labels in ios-charts

2 Answers2