Could not record video on MFiX 22.4.2

MFiX
#1

Dear developers,
I am unable to record the video via default build in function of ‘‘create video’’ and giving this error.
sphere2d_2023-03-06T084613.852185.zip (271.4 KB)

#2

Hi @majidkhalil

My guess is that this error is coming from the space in the directory name:

C:\Users\Majid Khalil\.conda

In a perfect world, all software would handle spaces in file/directory names. But sadly, we do not live in such a world - you may encounter similar errors with other programs. Best to avoid spaces and other unusual characters in pathnames. Can you rename your home dir to Majid_Khalil?

Having said that - we will fix this for the next release. Thanks for the bug report and sorry for the trouble.

– Charles

#3

Hello,
I just find that if the video end time <0.001s, then I can’t create a video, just need to increase the end time.
In 22.4.3, I still meet this problem :hamburger:

#4

Hi @orange. I’m not sure I understand your question.
shot-2023-03-13_11-33-52

The controls in the GUI don’t allow setting the stop and end time at less than 1ms resolution. Is this causing a problem for you? What are you trying to do? What framerate are you using?

#5

Yes, that’s my problem, I just start to study the MFIX and run it in my laptop, So the simulate time is shorter than 1ms. I try to simulate one single particle impact on the particle layer, the framerate usually use default values 25, sometimes I set it 10.

#6

hi!!! i am also a Chinese student who is learning MFiX recently, do you wanna add we on wechat etc so that we can share our problems and experience? (sorry for the disturbance, it’s just i have no one to learn this together)

#7

We are happy when users help each other. For what it’s worth, you can send direct messages through this forum software.

#8

Hi dear!
Welcome, I am not expert, well we both can learn manything. You may contact over mail address. mspe2108@pieas.edu.pk

#9

This problem solved as I changed my user name to ''Majid".
thanks for support.

#10

This may save you trouble with other apps as well. Like I said, space in filename SHOULD be supported but not all software handles this correctly!

#11

@orange - if you want to try something - with the mfix environment activated, go to

$CONDA_PREFIX/lib/python3.10/site-packages/mfixgui/uifiles/

or on Windows

%CONDA_PREFIX%\lib\python3.10\site-packages\mfixgui\uifiles\

make a backup of the file create_movie.ui and then carefully edit the file
changing the sections around line 128 and 160.

    <widget class="QDoubleSpinBox" name="doubleSpinBox_end">
     <property name="decimals">
      <number>3</number>
     </property>
     <property name="singleStep">
      <double>0.100000000000000</double>
     </property>
...
    <widget class="QDoubleSpinBox" name="doubleSpinBox_start">
     <property name="decimals">
      <number>3</number>
     </property>
     <property name="singleStep">
      <double>0.100000000000000</double>
     </property>

if you change the 3 in the line after "decimals" you can get more digits of precision. And you can edit the step size too.

Restart MFiX to apply changes.