Script to find the area of shapes in Adobe Illustrator

GetShapeArea.jsx

/* Save this file with a jsx extension and place in your
Illustrator/Presets/en_US/Scripts folder. You can then
access it from the File > Scripts menu */

var decimalPlaces = 3;

if (app.documents.length > 0) {

	if (app.activeDocument.selection.length < 1) {
		alert('Select a path');
	} else if (app.activeDocument.selection[0].area) {
		// Individual Items
		var objects =  app.activeDocument.selection;
	} else if (app.activeDocument.selection[0].pathItems) {
		// Group/Compound Shape
		var objects = app.activeDocument.selection[0].pathItems;
	} else {
		alert('Please select a path or group.');
	}

	// Collect info
	var totalArea = 0;
	for (var i=0; i<objects.length; i++) {
		if (objects[i].area) {
			var totalArea = totalArea + objects[i].area;
		}
	}

	// Conversions
	var ppi = 72;
	var areaIn = totalArea / ppi / ppi;
	if (areaIn < 0) var areaIn = -areaIn;
	var areaCm = areaIn * 6.4516;

	// Display
	alert('Shape Area\
	' + areaIn.toFixed(decimalPlaces) + ' in² \
	' + areaCm.toFixed(decimalPlaces) + ' cm² \n\
	' + i + ' shapes');

}

@whitehorn799
Im still working on some other issues inbumpedninto. I noticed when a selection consists of multiple compoundpathitems, it would return the shape count as 1. Currently working on that. I believe the calculations are now fixed. As far as I can do that. I've noticed that still sometimes it returns a none round number even when the length and with are round numbers.. the pixel area is now as close as I can get it

Cool, thanks for updating this and helping out! I appreciate all the work you've done. Will you update the code when you iron out those bumps you were talking about?

@whitehorn799

Of course I will

For some reasons, it got negative area for some paths, so for multiple paths it substracted them. not added. Fixed with adding math.abs:
var totalArea = totalArea + Math.abs(objects[i].area);

But unfortunately, now compound shape calculation doesn't work correctly ¯_(ツ)_/¯

Love this! I think it would fit into a project I'm working on.

Does anyone think it would be possible to give the total area of every spot colour in a document? I am limited by having to select the shapes.

@draugmot

now compound shape

Yeah, this original version is great but is minimal. You can also have a look at my altered version. There is still a minor issue now, it has some issues sometimes with a combination of pathItems and compoundPathItems mixed together.
https://github.com/schroef/Illustrator-Scripts/blob/master/GetShapeArea-dialog.jsx

@floodwayprintco

Im not sure adding this to the script will help. Its kinda of a specific workflow

Have a look at my version. It has been updated with more functionality
https://github.com/schroef/Illustrator-Scripts/blob/master/GetShapeArea-dialog.jsx

You can easily use magic wand to iterate over colors and than run the script each time