关于Vue可视化大屏适配

尺寸：1920x1080 3084x2160 现有方案： 采用lib-flexible和px2rem-loader rem适配 假若屏幕宽度为1920 把屏幕宽度分为100等分，1rem=19.2px px2rem-loader这个插件可以直接将项目中写的样式单位px转换成rem

` (function(win, lib) { var doc = win.document; var docEl = doc.documentElement; var metaEl = doc.querySelector('meta[name="viewport"]'); var flexibleEl = doc.querySelector('meta[name="flexible"]'); var dpr = 0; var scale = 0; var tid; var flexible = lib.flexible || (lib.flexible = {});

if (metaEl) {
    console.warn('将根据已有的meta标签来设置缩放比例');
    var match = metaEl.getAttribute('content').match(/initial\-scale=([\d\.]+)/);
    if (match) {
        scale = parseFloat(match[1]);
        dpr = parseInt(1 / scale);
    }
} else if (flexibleEl) {
    var content = flexibleEl.getAttribute('content');
    if (content) {
        var initialDpr = content.match(/initial\-dpr=([\d\.]+)/);
        var maximumDpr = content.match(/maximum\-dpr=([\d\.]+)/);
        if (initialDpr) {
            dpr = parseFloat(initialDpr[1]);
            scale = parseFloat((1 / dpr).toFixed(2));
        }
        if (maximumDpr) {
            dpr = parseFloat(maximumDpr[1]);
            scale = parseFloat((1 / dpr).toFixed(2));
        }
    }
}

if (!dpr && !scale) {
    var isAndroid = win.navigator.appVersion.match(/android/gi);
    var isIPhone = win.navigator.appVersion.match(/iphone/gi);
    var devicePixelRatio = win.devicePixelRatio;
    if (isIPhone) {
        // iOS下，对于2和3的屏，用2倍的方案，其余的用1倍方案
        if (devicePixelRatio >= 3 && (!dpr || dpr >= 3)) {
            dpr = 3;
        } else if (devicePixelRatio >= 2 && (!dpr || dpr >= 2)){
            dpr = 2;
        } else {
            dpr = 1;
        }
    } else {
        // 其他设备下，仍旧使用1倍的方案
        dpr = 1;
    }
    scale = 1 / dpr;
}

docEl.setAttribute('data-dpr', dpr);
if (!metaEl) {
    metaEl = doc.createElement('meta');
    metaEl.setAttribute('name', 'viewport');
    metaEl.setAttribute('content', 'initial-scale=' + scale + ', maximum-scale=' + scale + ', minimum-scale=' + scale + ', user-scalable=no');
    if (docEl.firstElementChild) {
        docEl.firstElementChild.appendChild(metaEl);
    } else {
        var wrap = doc.createElement('div');
        wrap.appendChild(metaEl);
        doc.write(wrap.innerHTML);
    }
}

**function refreshRem(){
    var width = docEl.getBoundingClientRect().width;
    // if (width / dpr < 1980) {
    //     width = 1980 * dpr;
    // } else if (width / dpr > 5760) {
    //     width = 5760 * dpr;
    // }
    var rem = width / 100;
    docEl.style.fontSize = rem + 'px';
    flexible.rem = win.rem = rem;
    console.log(rem,width);
}**

win.addEventListener('resize', function() {
    clearTimeout(tid);
    tid = setTimeout(refreshRem, 300);
}, false);
win.addEventListener('pageshow', function(e) {
    if (e.persisted) {
        clearTimeout(tid);
        tid = setTimeout(refreshRem, 300);
    }
}, false);

if (doc.readyState === 'complete') {
    doc.body.style.fontSize = 12 * dpr + 'px';
} else {
    doc.addEventListener('DOMContentLoaded', function(e) {
        doc.body.style.fontSize = 12 * dpr + 'px';
    }, false);
}


refreshRem();

flexible.dpr = win.dpr = dpr;
flexible.refreshRem = refreshRem;
flexible.rem2px = function(d) {
    var val = parseFloat(d) * this.rem;
    if (typeof d === 'string' && d.match(/rem$/)) {
        val += 'px';
    }
    return val;
}
flexible.px2rem = function(d) {
    var val = parseFloat(d) / this.rem;
    if (typeof d === 'string' && d.match(/px$/)) {
        val += 'rem';
    }
    return val;
}

})(window, window['lib'] || (window['lib'] = {}));

以上代码为1920的写法，但现在需求是适配3840的屏幕分辨率，应该怎么做呢？如果有用vue做过大屏适配的大佬 还请指教一下。