Function makePadAccessor

src/plots/cartesian/autorange.js:465–473

(item)

    var i, v, di, dmin, dmax, ppadiplus, ppadiminus, vmin, vmax;

    function makePadAccessor(item) {
        if(Array.isArray(item)) {
            hasArrayOption = true;
            return function(i) { return Math.max(Number(item[i]||0), 0); };
        } else {
            var v = Math.max(Number(item||0), 0);
            return function() { return v; };
        }
    }

    var ppadplus = makePadAccessor((ax._m > 0 ?
        opts.ppadplus : opts.ppadminus) || opts.ppad || 0);