CSS转换矩阵是左还是顶？

Question

计算左侧还是顶部？

 <div style="width:100px;height:50px;"></div>
 div.style.transform = `rotateZ(45deg)`
 // 获取矩阵
 let transform = window.getComputedStyle(div)['transform'],
     matrix = transform.slice(7, -1).split(',')

Answer 1

要使用javascript获取div的矩阵，您可以尝试这些

let style = window.getComputedStyle(div);
let transform = style.transform;
let matrix = transform.replace('matrix(', '').replace(')','').split(',')