Adding custom labels to X and Y axis

[Deepak]

Hi,

I want to ask two questions :

1) Please can you help as how I can add labels to x axis value with my own duration defined in labels as interval.

 2) How to show data points in Line series graph and add click listener to Line series.

 Thanks

[Victor]

Hi Deepak,

Can you please explain in more detail your first point?

As to your second point, you have to set a SphericalDataPointIndicator on your line series.
For example:

lineSeries.setDataPointIndicatorRenderer(new SphericalDataPointIndicatorRenderer(lineSeries));

To react to click events on your series, you have to use ChartSelectionBehavior.

Regards,
Victor
Telerik

 

 

[Deepak]

Thanks Victor, my first point is : I want to show labels on x-axis exactly where I can put put like I want to show for eg. {3,5,9,15 etc} but as of now I have perceived that it takes it automatically like it shows 0 an then it showed directly 5 on x-axis. It does not show 0 then 1,2,3,4 and then 5 like this.

 

Basically what I needed is simplest mechanism to just add all the labels what ever I want to show on X-axis or Y-axis and it should get display on the graph irrespective of Bar or Line chart.

 

So for example, I have a, b, c which I want to show on x-axis. And apple, ball and couch to show on Y-axis. Please suggest. I did some R&D and found there is something ChartLabelRenderer but I am not clear on this, Can you please illustrate with simple example which I can use as reference showing the above scenario happening.

 

Also one request I have that when I try to look for some documentation, I always face problem that the docs does not show properly. I am attaching screenshots for the same. Please advise on this as well.

 

Thanks,

[Victor]

Hello Deepak,

Thanks for the details. If I understood correctly you just need to show arbitrary labels on the linear axis. You can easily do this with a label value to string converter. For example:

chart.getVerticalAxis().setLabelValueToStringConverter(new Function<Object, String>() {
 @Override
 public String apply(Object argument) {
 MajorTickModel tick = (MajorTickModel)argument;
 if(tick.value() == 1) {
 return "duck";
 }
 if(tick.value() == 2) {
 return "goose";
 }
 // etc.
 // For the unimportant values return an empty string.
 return "";
 }
});

I will forward to code example issue in the help to our help team. Thanks for reporting that. I don't think you can do something to browser to fix that. I suggest copy/pasting the whole code block into Android Studio/Eclipse and inspecting the example there.

Regards,
Victor
Telerik