javascript - 方向正常，但数据大小不适合屏幕。粘贴代码是定位功能

Question

方向正常，但数据大小不适合屏幕。

function doOnOrientationChange()
    {
    var hhei= 0;
    switch(window.orientation)
    {
    case -90:
    hhei= ($(document).height())*2.0/4;


     alert("-90:"+hhei);
    chartcreator(ticks,s1,s2,legendEquipments,hhei);
    break;
    case 90:
    hhei= ($(document).height())*2.0/4;
     alert("90:"+hhei);
    chartcreator(ticks,s1,s2,legendEquipments,hhei);
    break;
    case 0:
    hhei= ($(document).height())*2.0/4;
     alert("0:"+hhei);
    chartcreator(ticks,s1,s2,legendEquipments,hhei);
    break;
    case 180:
    hhei= ($(document).height())*2.0/4;
    alert("180:"+hhei);
    chartcreator(ticks,s1,s2,legendEquipments,hhei);
    break;
    }
    }

90' 显示垂直布局，180' 显示水平布局。我不知道如何解决它