QtCharts sucks

sufuk

QtCharts sucks, it is extremly slow and there isn't any proper way to implement error bars.
I draw error bars with Box and whiskers but there isn't any way to place them on respective (x) points,
Alternative is using QCustomplot which is very expensive for non-GPL license.

So why QtCharts has many types of Charts or serries but not error bars, a lot of scientist doesn't use QtCharts because of that?

mrjj

Hi
Yes the API could be better. it's hard to customize or make new graph types.

So why QtCharts has many types of Charts or serries but not error bars, a lot of scientists doesn't use QtCharts because of that?

Well if there ever was a reason, it been lost in the times. They didn't add new charts for years so
not sure it's still on the radar.

Alternative is using QCustomplot which is very expensive for non-GPL license.
It is ? I as under the impression it was around 100 euros, pr developer.

JKSH

Or Qwt, which is LGPL-ish: https://qwt.sourceforge.io/

JoeCFD

https://vtk.org/Wiki/VTK/Charts can be useful as well.

VRonin

KDChart is another alternative but once again it's GPL or Commercial

Charting is a hard task with so many possible customisations. In the past I cheated my way out of this problem using QWebEngineView and Google Charts (Box and whiskers example).