How to put a text in the center of a renderview?

ParaView Support
1

Dear All,

I am trying to put a text in the center of the renderview on the specific height Oy, not center bottom. How to do it?
I am using pvpython. setting position is not suitable, because I don’t know the length

BR,
Evgenii

2
  • Source -> Text, Apply
  • check “Lower left corner” and position the text
3

Dear Mathieu,

Yes indeed, I will able to specify position, but the position corresponds to the lower-left corner. I need to specify the position according to the center of the text.
I want to automate the generation of pictures with some data on them.

BR,
Evgenii

4

You will need to recover the 2D bounds of your text actor, may be doable in Python.

5

I tryed this to get bounds info: but it does not work:

        text1 = Text()
        text1.Text = 'x=' + str(round(sl,2)) + " l/l_b=" + str(round((sl-bounds[0])/len_bub,2))

        text1Display = Show(text1, renderView2, 'TextSourceRepresentation')

        # trace defaults for the display properties.
        text1Display.WindowLocation = 'AnyLocation'
        text1Display.Position = [0.3, 0.2]
        textBounds = text1.GetDataInformation().GetBounds()
        print("textBounds=",textBounds)

It shows
('textBounds=', (1e+299, -1e+299, 1e+299, -1e+299, 1e+299, -1e+299))

BR,
Evgenii

6 
Text()
rep=Show()
Render()
rep.Position2
7

Dear Mathieu,

I have tried this but it shows the same number for any text.

then I tried another to find out the width of a text:

text1=Text()
text1.Text="my text"
text1Display = Show(text1)
text1Display.WindowLocation = 'UpperCenter';
Render()
print text1Display.Position2, text1Display.Position

the output is

<paraview.servermanager.RenderView object at 0x12689b650>

[0.1, 0.1] [0.05, 0.05]

The outout is not correct.

BR,
Evgenii

8

It looks like this is not updated properly, this is a bug.

9

Replicated. Reported here: https://gitlab.kitware.com/paraview/paraview/-/issues/20226