Re: [pyqtgraph] I would like to show more number of yTick values. But could not find any solution so far.

[Jerzy Karczmarczuk]

Le 06/05/2020 à 14:11, Syed Imtiaz Ali Shah a écrit :

As can be seen in this picture, the current value of the plot seems to be 30 but even this value is not shown. I have set Y limit to (0,100). I would like to show at least every thrid value on Y-Axis. 

For example [0,3,6,9,12............100]

I will appreciate your help.

I would appreciate if you could show your program, instead of just a plot without any details.
You say: "could not find any solution so far". Did you really try? I suspect that you  prefer to ask for help instead of reading the manual, and all kind of tutorial-like examples on the Web.

You would find AxisItems, setTicks, and other useful goodies. OK, try this, somewhat senseless:

import numpy as np
import pyqtgraph as pg

dta=np.linspace(0,1,200)
gr=pg.plot(dta,pen='r')
gr.setYRange(-1.2,1.2)

axy = gr.getAxis('left')
yticks = [-1,0,0.3,0.8,1.2] # or more dense if you wish
axy.setTicks([[(p, str(p)) for p in yticks ]])

Adapt this to your needs. Good bye.

Jerzy Karczmarczuk
/Caen, France/

[Syed Imtiaz Ali Shah]

I have tried this already, but lets try it again with different approach.

Anyway thank you 😊