Static Canvas

[adamjarling]

Static Canvas

[adamjarling]

Correct, not yet implemented. Since we're limiting how a user can move a Work around the OpenSeadragon viewer, I was running into problems getting the initial top margins consistent, per Work. I'll revisit this.

[adamjarling]

@jessvu So I have this now working where the image and canvas will render zoomed out 100%, and are static.

OSD offers a configuration option visibilityRatio (https://openseadragon.github.io/docs/OpenSeadragon.html#.Options) which essentially tells OSD how much of the image needs to stay inside the bounds of OSD's canvas. By default the value is 0.5, allowing a user to pan to the greatest level, only see half the image in the OSD canvas.

I updated this setting to 1, which tells OSD to keep the entire image constrained within the canvas. Along with some other default zoom settings, I was able to get the image to display with some perceived margins around all edges of the image.

However, because we're looking at this from a laptop viewport (I assume....desktop may be different), the viewport is wider than tall, and there are no issues showing extra horizontal padding until a very zoomed-in level. This means that horizontal padding is disabled, until a zoom level is reached where the image zoom level is wider than current canvas. Maybe this is fine...to me it seems a little odd that I can pan vertically but not horizontally until a certain point, but my bias is I'm used to looking at deep zoom image viewers more than the average person.

So...I'll push up the changes and let me know yea/nea?

[adamjarling]

Actually still working on this. I'll ping you when it's pushed live @jessvu

[adamjarling]

Ok, just pushed the changes.

[adamjarling]

Just noticed the original size of the image on the canvas (for tall items), doesn't have top/bottom margin. Need to figure out a better way to display the initial image size with margins all around, and (I think) set a dynamic minimum Zoom level in OpenSeadragon each time a new image is loaded into the Viewer.

[jaimemears]

The top/bottom margin has not been implemented, correct? (Doing backlog cleanup)

[jaimemears]

@adamjarling I noticed with the return to a more "moveable" item in open sea dragon the margins have gone away. Is this an either/or situation? Meaning you cant have top and bottom margins and a moveable item simultaneously?

[jaimemears]

@adamjarling nvm! the items look centered in this newest push. Closing this ticket.