访问简单形状的位置

Question

I have a Rect assigned to a variable myrect: 我有一个Rect分配给变量myrect：

var myrect = new Rect (250,0,20,200);

I thought that writing: 我以为这样写：

console.log(myrect.x);

would output 250 but, it says " undefined ". 将输出250，但显示“ 未定义 ”。

I would like to know how I can redraw this rectangle by performing arithmetic on its x and y coordinates. 我想知道如何通过对x和y坐标进行算术来重绘此矩形。

Answer 1

The way to access the x and y properties is through the attr() method. 访问x和y属性的方法是通过attr()方法。

console.log(myrect.attr('x'));

See it in the documentation . 在文档中看到它。 But I have to admit, the documentation isn't that beginner-friendly yet. 但是我不得不承认，文档还不适合初学者。