Best way to achieve dynamic image

2023-06-08T09:53:43.833000Z

Maybe this option helps...
https://content.helpme-codesys.com/en/CODESYS%20Visualization/_visu_dlg_project_settings.html

"Visualization Directories"

Best way to achieve dynamic image

2023-06-08T00:49:27.721000Z

Thanks to you I got my project working, too!:+1

But I have a question.
As I realized the image to be dynamically refreshed has to be in the folder ../visu.
Is there a way to put it into any other folder?
Reason: we use a compute module 4 with its internal eMMC which isn't that fast.
The image is an image of a barcode-reader that should be shown in the Visu and then, in a background task, be copied to somewhere else.
So - it is in process and copying the image from the BC-CAM to the ../visu-folder takes ~150ms, whereas copying it to a ramdisk is done in less than 50ms.
We use, e.g., tmpfs /var/opt/codesys/PlcLogic/cmexchange tmpfs mode=1777 0 0 in the fstab.
No problem to create another ramdisk below ../visu.

BUT: is it somehow possible to have the POOL-Image in that sub-folder on the PLC - or any other folder at all?

Kind regards,
Horst

Best way to achieve dynamic image

2021-07-09T11:47:21.391000Z

It's working!
Thank you Marcel!

Best way to achieve dynamic image

2021-07-09T05:21:14.300000Z

You still have to increase the bitmap version,without changing the value the image will not be cleared and redrawn from file.

Best way to achieve dynamic image

2021-07-08T15:34:24.710000Z

You should not increment your bitmap version that much.
I know, It was just for making it easy so I don't have to change it manually every time.

And the issue seems to be caused by the bitmap ID variable.
Just remove this from the configuration as you dont need it.*
I removed the variable (and the timer) and it still require refresh both on Firefox and Chrome.

Best way to achieve dynamic image

2021-07-08T14:29:22.211000Z

Hey,
A few things.
You should not increment your bitmap version that much.
And the issue seems to be caused by the bitmap ID variable.
Just remove this from the configuration as you dont need it.

Best regards,
Marcel

Best way to achieve dynamic image

2021-07-08T12:44:41.737000Z

Sure, I attached the files.
The example is in the second Visualization and I have a timer to change the bitmap so it will change the image immediately .

Right now I'm using Firefox 89.0.2 and Chrome 91.0.4472.124
On the real PLC we will use Chrome.

Best way to achieve dynamic image

2021-07-08T12:31:04.642000Z

Hey,
could you attach a example project for me to reproduce the issue?
Which browser and which version are you using?

Best regards,
Marcel

Best way to achieve dynamic image

2021-07-08T12:17:44.297000Z

Thanks Marcel!
Currently, I need to refresh the browser or use chrome with the Developers Tools open on the network tab and Disable Cache option ticked.
When closing the developer tools window it doesn't work again.
@sedoerr had the same issue here:
https://forge.codesys.com/forge/talk/Visualization/thread/79526ea338/#1435

Stuck in a dead end with it.

Best way to achieve dynamic image

2021-07-07T13:38:48.625000Z

Hey,
I found where the image is placed in the PLC folder and when I replace it It change but only if I refresh the browser.
So I need to find a way around that.

Thats the way to go.
This folder is your $PlcLogic$/$visu$ folder.
If you replace the image in this folder and change the Bitmap Version of the image, it will be reloaded (without the need to refresh the browser).

Best regards,
Marcel

Recent posts to Best way to achieve dynamic image

Best way to achieve dynamic image

Best way to achieve dynamic image

Best way to achieve dynamic image

Best way to achieve dynamic image

Best way to achieve dynamic image

Best way to achieve dynamic image

Best way to achieve dynamic image

Best way to achieve dynamic image

Best way to achieve dynamic image

Best way to achieve dynamic image