Omero iviewer zoom limits

Usage & Issues
#1

Hi,
A pure perhaps naive interface question for Omero Iviewer . Working with rather large stitched images. Seems that for smaller images I can zoom to 4000% while for larger one I cant go beyond “161%”.

I am using ivewer 0.9.1 and we are running our own server.

It seems to be the same here: https://idr.openmicroscopy.org/webclien … ataset=373

Any input would be appriciated.

Best, Staffan

#2

Hi Staffan,

I started to look into this and opened a PR at https://github.com/ome/omero-iviewer/pull/325.

What do you think would be good maximum zoom for ‘Big’ images?
4000% seems a bit too much?

Regards,
Will.

1 Like
#3

Hi all,

I’m reviving this topic because I have a similar request for OMERO.figures:
For most images (except big images like slide scanner .vsi files), the maximum zoom in OMERO.figure seems to be set to 1000%, like in this example:

ZoomCheat2
ZoomCheat2848×751 142 KB

Would it be possible to increase this maximum zoom factor in OMERO.figures?
I was able to “cheat” with this limitation by creating a small rectangular ROI and by cropping the panel accordingly like shown in the print below, but it is not really convenient and not well editable.
Zoomcheat
Zoomcheat901×752 105 KB

Still, it suggests me that the maximum zoom factor could be increased somehow?

Best,
Claire

#4

Hi Clair,

Thanks for the feedback.
I created an issue at Zoom over 1000% · Issue #428 · ome/omero-figure · GitHub

In the meantime, you could also zoom above 1000% by using the Crop button and drawing a tiny crop region. Once the Zoom slider has been expanded to a higher range, you can still use it to choose an intermediate Zoom level.

Regards,

Will

1 Like
#5

Hi Will,

thank you for your answer. Being able to edit the Zoom value as a text field would be a great solution indeed!

Best,
Claire