How do you create a guide layout with set inner dimensions that is centered on the image?

[gregd]

I want to define a 100x100 pixel square in the center of an images of arbitrary sizes using guides, and I'd like to do it through an action so I can use it with automate batch. How can I do this?

I feel like I should be able to do this with New Guide Layout, but for some reason it doesn't have an option to center rows.

[jane-e]

@gregd 

Can you show a screenshot of your new guides layout panel? What are you trying to do that it's not doing?

Jane

[gregd]

Here you go. The 100x100 area isn't centered vertically. How do I fix that?

[Stephen Marsh · Accepted solution]

Something like this?

Otherwise, a scripted option that can be recorded into the action for batching:

#target photoshop;
//activeDocument.guides.removeAll();
var savedRuler = app.preferences.rulerUnits;        
app.preferences.rulerUnits = Units.PIXELS;
var hCentre = activeDocument.width/2;
var vCentre = activeDocument.height/2;
activeDocument.guides.add(Direction.HORIZONTAL, vCentre + 50);
activeDocument.guides.add(Direction.HORIZONTAL, vCentre - 50);
activeDocument.guides.add(Direction.VERTICAL, hCentre + 50);
activeDocument.guides.add(Direction.VERTICAL, hCentre - 50);
app.preferences.rulerUnits = savedRuler;    

https://prepression.blogspot.com/2017/11/downloading-and-installing-adobe-scripts.html

[Semaphoric · Accepted solution]

How about this:

[Stephen Marsh]

@Semaphoric – Even better!

[Stephen Marsh]

@gregd – are you still out there?