Trying to test if a image/document is greater than 2 x the height

Question

I'm creating a script that exports pdf's of selected pages or spreads to the desktop opens them in photoshop and checks if its portrait or landscape scales them based on that and exports jpgs. See code below: if (app.activeDocument.width.value > app.activeDocument.height.value) {
            //Landscape
            app.activeDocument.resizeImage(
                new UnitValue(2000, "px"),
                currentHeight,
                currentResolution,
                ResampleMethod.BILINEAR
            );
        } else {
            //Portrait
            app.activeDocument.resizeImage(
                new UnitValue(1325, "px"),
                currentHeight,
                currentResolution,
                ResampleMethod.BILINEAR
            );
        } This works well until I run into a book that is in a landscape format. So I was thinking instead I could check if the width > 2x height. I think that should work to test if its a landscape book. Like the code below but it doesn't work. if (app.activeDocument.width.value > (app.activeDocument.height.value * 2)) {
        //Landscape
         app.activeDocument.resizeImage(
        new UnitValue(2650, "px"),
        currentHeight,
        currentResolution,
        ResampleMethod.BILINEAR
    );
} else{
        //Portrait
        app.activeDocument.resizeImage(
        new UnitValue(1325, "px"),
        currentHeight,
        currentResolution,
        ResampleMethod.BILINEAR
    );
        }  Any ideas of how to make this work or make it better?

rob day · Accepted Answer

Hi @davidn5918184 , You should be able to get it from the page object. This would test the document’s active page:

//the page to check
var ap =  app.activeWindow.activePage;
var b = ap.bounds;
var pw = b[3]-b[1]
var ph = b[2]-b[0]

if (ph>pw) {
	$.writeln("Page is Portrait")
} else if (ph == pw){
    $.writeln("Page is Square")
}else{
    $.writeln("Page is Landscape")
}

m1b · Answer

Hi @davidn5918184, as a side question, did you know you can export pages as jpegs directly from Indesign? It would make for a simpler workflow (and script). See Document.exportFile, and App.JPEGExportPreference. You can set the final pixel dimensions using page size and export resolution (with no need for extra scaling step). As for calculating the scaling, I usually think in terms of fitting the page into an N pixel square, eg. a landscape page might be 5000px wide and a portrait page would be 5000px high. Of course, there may be other reasons for the way you are approaching this.

- Mark

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