How to display single data when using LineChartView

[linyuanteng]

What did you do?

Using LineChartView

What did you expect to happen?

Display a horizontal line like this

What happened instead?

Display nothing like this

Charts Environment

**Charts version/Branch/Commit Number:**3.2.2
Xcode version: 10.1
**Swift version:**4.2
Platform(s) running Charts:
macOS version running Xcode:

Demo Project

None

[zhangjianjun056]

I have the same problem. Have you solved it。（V3.2.2）

[friendshipzhang]

I have the same problem too.

[friendshipzhang]

use v3.2.0

[liuxuan30]

this is what I got with ChartsDemo. So I think it's fine. about the rendering, it has to be done by yourself.