From drawing to code...

Hi @Paul_St_George, sure... have a look at this:

(function () {

    var doc = app.activeDocument;
    var pathItem = doc.selection[0];

    if ('PathItem' !== pathItem.constructor.name)
        return alert('Please select a path item and try again.');

    for (var i = 0, p; i < pathItem.pathPoints.length; i++) {

        p = pathItem.pathPoints[i];

        alert(
            'PathPoint ' + i
            + '\nanchor: ' + p.anchor
            + '\nleftDirection: ' + p.leftDirection
            + '\nrightDirection: ' + p.rightDirection
        );

    }

})();

You can directly set those properties too, eg.

p.anchor = [10,20];

See PathPoint docs. 

- Mark