Normalizing size of multiple paths while maintaining their aspect ratio in Illustrator

Question

I have quite a few irregular paths (approx. 200), each with a different bounding box. I want scale all of these to a similar size while maintaining their aspect ratio.

Before:

After:

Is it possible?

Answer 1

Select objects you want to fit by height and run:

#target illustrator

// ScaleToFitVerticalAxis.jsx
//
// Copyright (c) 2017 Janne Ojala
//
// Licence: https://opensource.org/licenses/MIT

visitObjects(app.activeDocument.selection, scaleByHeight, 100)

function scaleByHeight(item, targetHeight){
    var factor = targetHeight / item.height;
    item.height *= factor;
    item.width  *= factor;
}

function visitObjects(sel, func, opts) {
    for(var i = 0; i < sel.length; i++){
        func(sel[i], opts);
    }
}

Example:

Image 1: Objects on first row are scaled to fit by height on second row.