Function _calc

test/jasmine/tests/histogram_test.js:557–594

(opts, extraTraces, layout, prependExtras)

    describe('calc', function() {
        function _calc(opts, extraTraces, layout, prependExtras) {
            var base = { type: 'histogram' };
            var trace = Lib.extendFlat({}, base, opts);
            var gd = { data: prependExtras ? [] : [trace] };

            if(layout) gd.layout = layout;

            if(Array.isArray(extraTraces)) {
                extraTraces.forEach(function(extraTrace) {
                    gd.data.push(Lib.extendFlat({}, base, extraTrace));
                });
            }

            if(prependExtras) gd.data.push(trace);

            supplyAllDefaults(gd);
            var fullTrace = gd._fullData[prependExtras ? gd._fullData.length - 1 : 0];

            if(prependExtras) {
                for(var i = 0; i < gd._fullData.length - 1; i++) {
                    calc(gd, gd._fullData[i]);
                }
            }

            var out = calc(gd, fullTrace);
            delete out[0].trace;

            // this is dumb - but some of the `ph0` values are `-0` which doesn't match `0`
            // even though -0 === 0
            out.forEach(function(cdi) {
                for(var key in cdi) {
                    if(typeof cdi[key] === 'function') cdi[key] = cdi[key]();
                    if(cdi[key] === 0) cdi[key] = 0;
                }
            });

            return out;
        }

        var oneDay = 24 * 3600000;