<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>ray() angle interpolation with css math functions</title>
<link rel="author" title="Daniil Sakhapov" href="mailto:[email protected]">
<link rel="help" href="https://drafts.fxtf.org/motion/#offset-path-property">
<link rel="help" href="https://drafts.csswg.org/css-values/#sign-funcs">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
</head>
<style>
:root {
font-size: 10px;
}
</style>
<body>
<script>
test_interpolation({
property: 'offset-path',
from: 'ray(100deg)',
to: 'ray(calc(sign(20rem - 20px) * 180deg))',
}, [
{at: -1, expect: 'ray(20deg)'},
{at: 0, expect: 'ray(100deg)'},
{at: 0.125, expect: 'ray(110deg)'},
{at: 0.875, expect: 'ray(170deg)'},
{at: 1, expect: 'ray(180deg)'},
{at: 2, expect: 'ray(260deg)'}
]);
test_interpolation({
property: 'offset-path',
from: 'ray(calc(sign(20rem - 20px) * 100deg))',
to: 'ray(calc(sign(20rem - 20px) * 180deg))',
}, [
{at: -1, expect: 'ray(20deg)'},
{at: 0, expect: 'ray(100deg)'},
{at: 0.125, expect: 'ray(110deg)'},
{at: 0.875, expect: 'ray(170deg)'},
{at: 1, expect: 'ray(180deg)'},
{at: 2, expect: 'ray(260deg)'}
]);
</script>
</body>
</html>