Second to last value in stacked BarChart not drawn when the last value is zero

[igorkulman]

• I've read, understood, and done my best to follow the *CONTRIBUTING guidelines.

What did you do?

I have created a stacked BarChart with 3 values, just like in the StackedBarChartViewController sample.

The values are in form of [val1, val2, val3]. Sometimes val3 is 0

What did you expect to happen?

I expected the BarChart to be drawn properly, every non-zero value to be shown

What happened instead?

Anytime val3 is 0 then val2 does not get drawn. Only its label is visible:

Charts Environment

Charts version/Branch/Commit Number:
Xcode version: 10.2.1
Swift version: 5
Platform(s) running Charts: iOS
macOS version running Xcode: 10.14.4

Demo Project

In the sample project open StackedBarChartViewController and change the setChartData method to sometimes or always set val3 = 0.

[igorkulman]

Actually it is a bug in #3754 not in the library itself