Line chart with LineChartView the line is lower than the minimum values

[frfuentes]

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

What did you do?

I'm working on a line graph using LineChartView, in CubicBezier mode

What did you expect to happen?

I try to obtain a graph allowing curves, but respecting the limits

What happened instead?

In many cases the line is lower than the minimum values generating confusion, as you can see in the image, the line seems to have values below 0

Charts Environment

Charts version/Branch/Commit Number: 3.3.1 Release
Xcode version: 8.2.1
Swift version: 2
Platform(s) running Charts: iOS
macOS version running Xcode: 10.13.4

[thierryH91200]

try to play... with Intensity for cubic lines

default: 0.2

dataset.cubicIntensity = (min = 0.05, max = 1)
I think 0.1 should be fine

[thierryH91200]

it's impossible to be Swift version: 2
please read readme

Xcode 9.3 / Swift 4.1
iOS >= 8.0 (Use as an Embedded Framework)
tvOS >= 9.0
macOS >= 10.11

[thierryH91200]

your issue is completely normal
see https://en.wikipedia.org/wiki/Bézier_curve

[frfuentes]

Thanks @thierryH91200, yes you are rigth is swift 3, but i tested whit 0.05 cubicIntensity but still having the same problem !

[thierryH91200]

stop it's not a problem it is a CubicBezier

[liuxuan30]

try horizontal bezier. the cubic one is a little buggy.