CODEWITHSUNDEEP
htmlcss
evin
evin

Reputation: 125

Draw a line (path) with pure CSS from one point to another

I have an image animating in this path below and would like the path to be visible.

CSS:

div {
    width:10px;
    height:10px;
    background:red;
    position:relative;
    -webkit-animation-name:Player1;
    -webkit-animation-duration:100s;
    -webkit-animation-timing-function:cubic-bezier(0.1,0.1,0.1,0.1);
    -webkit-animation-delay:2s;
    -webkit-animation-iteration-count:5;
    -webkit-animation-direction:normal;
    -webkit-animation-play-state:running
}

@-webkit-keyframes Player1 {
0% {
    background:red;
    left:20px;
    top:20px
}

25% {
    background:#ff0;
    left:800px;
    top:200px
}

50% {
    background:blue;
    left:950px;
    top:500px
}

75% {
    background:green;
    left:0;
    top:800px
}

100% {
    background:red;
    left:0;
    top:0
}
}

HTML:

<div></div>

Here is a fiddle.

Is it possible to have a line linking them with only CSS code? And if not, would you please help me with the code?

Upvotes: 9

Views: 21222

Answers (3)

pasquale
pasquale

Reputation: 111

You can animate the start point of a line in svg (also reversed) "stroke-dashoffset" like this example in codepen

@keyframes dash {
  0% {
    stroke-dashoffset: 500;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

https://codepen.io/Yudo/full/OaEWXK

Upvotes: 2

Niels Keurentjes
Niels Keurentjes

Reputation: 41958

This is obviously what SVG (Structured Vector Graphics) are for. 

<svg>
    <polyline points="20,20 800,200 950,500 0,800 0,0"></polyline>    
</svg>

Working sample here.

Or at a usable speed here.

Upvotes: 12

ryanb
ryanb

Reputation: 1084

You can calculate the the angle and distance between points and use CSS Transforms to push the line where you want it. Here's a jsfiddle. It's a little crude, but I think you'll get the idea.

var startPoint=[200,200], 
    endPoint=[300,300],
    rise=endPoint[1]-startPoint[1],
    run=endPoint[0]-startPoint[0],
    slope=rise/run,
    DEGREES=57.2957795,
    width=Math.sqrt((rise*rise)+(run*run));
var line=document.getElementById('line');
line.style.top=startPoint[0]+'px';
line.style.left=startPoint[1]+'px';
line.style.width=width+"px";
line.style.transform= "rotate("+(Math.atan(slope)*DEGREES)+"deg)";
line.style.transformOrigin= "0 0";

Upvotes: 1

Related Questions