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@TiagoRocha – Further to my previous reply, I have created an "offshoot" of the previously mentioned script to report on the active selection ratio:
/*
Photoshop Selection Info - Aspect Ratio.jsx
Stephen Marsh - v1.0, 3rd June 2022
*/
#target photoshop
var savedRuler = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS;
var selectionBounds = activeDocument.selection.bounds;
/*
var selectionLeft = selectionBounds[0].value;
var selectionTop = selectionBounds[1].value;
var s
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@TiagoRocha – Further to my previous reply, I have created an "offshoot" of the previously mentioned script to report on the active selection ratio:
/*
Photoshop Selection Info - Aspect Ratio.jsx
Stephen Marsh - v1.0, 3rd June 2022
*/
#target photoshop
var savedRuler = app.preferences.rulerUnits;
app.preferences.rulerUnits = Units.PIXELS;
var selectionBounds = activeDocument.selection.bounds;
/*
var selectionLeft = selectionBounds[0].value;
var selectionTop = selectionBounds[1].value;
var selectionRight = selectionBounds[2].value;
var selectionBottom = selectionBounds[3].value;
var selectionXCenter = (selectionBounds[0].value + selectionWidth) / 2;
var selectionYCenter = (selectionBounds[1].value + selectionHeight) / 2;
*/
var selectionWidth = selectionBounds[2].value - selectionBounds[0].value;
var selectionHeight = selectionBounds[3].value - selectionBounds[1].value;
var r = gcd(selectionWidth, selectionHeight);
var ratio = selectionWidth / selectionHeight;
alert(
'Selection Info' + '\n' +
'Selection Width: ' + selectionWidth + ' px' + '\n' +
'Selection Height: ' + selectionHeight + ' px' + '\n' +
'Aspect Ratio:' + '\n' + ratio.toFixed(2) + ':1' + ' / ' + ratio.toFixed(2) * 2 + ':2 / ' + ratio.toFixed(2) * 4 + ':4' + ' (Basic)' + '\n' +
selectionWidth / r + ':' + selectionHeight / r + ' (GCD)' + '\n' +
aspect_ratio(selectionWidth / selectionHeight, 50).toString().replace(',', ':') + ' (Farey)'
);
app.preferences.rulerUnits = savedRuler;
function gcd(a, b) {
/* https://stackoverflow.com/questions/1186414/whats-the-algorithm-to-calculate-aspect-ratio-i-need-an-output-like-43-169 */
return (b == 0) ? a : gcd(b, a % b);
}
function aspect_ratio(val, lim) {
var lower = [0, 1];
var upper = [1, 0];
while (true) {
var mediant = [lower[0] + upper[0], lower[1] + upper[1]];
if (val * mediant[1] > mediant[0]) {
if (lim < mediant[1]) {
return upper;
}
lower = mediant;
} else if (val * mediant[1] == mediant[0]) {
if (lim >= mediant[1]) {
return mediant;
}
if (lower[1] < upper[1]) {
return lower;
}
return upper;
} else {
if (lim < mediant[1]) {
return lower;
}
upper = mediant;
}
}
}
- Copy the code text to the clipboard
- Open a new blank file in a plain-text editor (not in a word processor)
- Paste the code in
- Save the text file as .txt
- Rename the file extension from .txt to .jsx
- Install or browse to the .jsx file to run:
https://prepression.blogspot.com/2017/11/downloading-and-installing-adobe-scripts.html#Photoshop
Thank you again for your time and help!
This last code isn't as valuable to me as the other ones, because when I'm using this feature, it's more of a way for me to know the ratio of a particular section, not to really crop it. If I had the ability to press a button and make it automatically create the preset, that would be an improvement, but cropping it right away is not the intention...
I know that on my request I wrongfully mentioned the Apply Crop button, but now looking back, it doesn't make sense that I mentioned that (at least not for my original intention for this feature). Maybe other users will find it useful though, knowing the ratio before cropping something? 🙂
Anyway, when I tried it, I got an error, after it was able to crop it successfully:
Again, thanks for your help. I totally understand that something as complex as this would require a lot of extra work and to me, the first 2 scripts are already a HUGE help, because I was struggling with this on a regular basis and this will save me a lot of time, so THANKS!
 
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