动画对角线查询 [英] Animate diagonal line query

问题描述

我想知道如果有人知道如何使用jquery创建一条对角线，并对其进行动画处理，这样当它出现时，它的绘制而不是仅仅出现。

I was wondering if anyone knows how to create a diagonal line using jquery and animate it so that when it appears its drawn on rather than just appears?

Muchos对于帮助!!

A simple jsfiddle would be awesome.

一个简单的jsfiddle将是真棒。 / p>

Muchos for the help!!

推荐答案

你可以用纯CSS实现：

You could actually do it with pure CSS:

HTML ：

<div class='box'></div>

CSS ：

.box {
  overflow: hidden;
  outline: dotted 1px;
  width: 8.09em; height: 5.88em;
  background: linear-gradient(36deg, 
                transparent 49.5%, black 49.5%, black 50.5%, transparent 50.5%) 
               no-repeat -8.09em -5.88em;
  background-size: 100% 100%;
  animation: drawDiag 2s linear forwards;
}

@keyframes drawDiag {
  to { background-position: 0 0; }
}

---

Circle

HTML ：

<div class='circle'>
  <div class='cover'></div>
</div>

CSS ：

.circle {
  overflow: hidden;
  position: relative;
  width: 10em; height: 10em;
}
.circle:before {
  position: absolute;
  width: inherit; height: inherit;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px black;
  content: '';
}
.cover {
  position: absolute;
  margin: 0 -50%;
  width: 200%; height: inherit;
  transform-origin: 50% 0;
  background: white;
  animation: revealCircle 5s linear forwards;
}

@keyframes revealCircle {
  to { transform: rotate(180deg); }
}

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