'nice' does not work as expected when set to a desired tick count

[arjuns-db]

Bug Description

I'm running into a couple of scenarios where setting nice to a desired tick count renders ticks abruptly:

1. When a chart has padding applied, setting nice to an explicit number renders the axis ticks in a way that does not follow the data domain.

   Here's a working example of this issue. The data domain does not have any negative values so I'd expect that providing a desired tick count value to nice should show more ticks with positive values and not negative.

2. I tried removing the padding in this other example and set nice to a number (e.g., 3) but the rendered chart has a different number of ticks (e.g., 6 excluding 0). I tried different numbers for the desired tick count but the output number of ticks is generally unpredictable.

Checklist

• I checked for duplicate issues.