Hi!

We just purchased a couple of licenses for jqChart MVC in version 3.9.1.0 and there seems to be an issue with the DateTimeAxis under certain circumstances:

When there is only one datapoint in the series, the axis goes from 2012 to 2018 and the single bar spans a lot more ticks than it should do.
Also, because of the big range, when selecting "hours" for interval-type the browser hangs (probably because it is busy generating ticks).

Setting a manual min/max-Value on the DateTimeAxis fixes that, but it seems to me that jqChart should be able to do that automatically.

I created a jsFiddle demonstrating the issue: http://jsfiddle.net/201vausp/3/

Thank you!
Regards,
Michael

Hi!

Without any interval options, the ticks are still not correct, there are just fewer of them.
But the bar still sits in the middle of the 5-year-range and looks like it spans 2 years, instead of sitting at a specific tick (like in the second chart I provided with explicit min/max values).


In our application the user can choose how they want to group their data (hour, day, week, month, year) and we map that to the intervalType.
Now if a user has only data for a single month, we show them one bar and want a single tick for that bar.
jqChart behaves like that for more than one datapoint and it seems like it should do that for one point as well.
In my tests it was sufficient to set min/max-range 60 seconds before/after the single datapoint, regardless of intervalType.

I have that workaround in place now, but please look into this for the next release.

Thanks!