<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Radical parameters</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#radicals-msqrt-mroot">
<meta name="assert" content="Elements msqrt and mroot correctly use the radical parameters from the MATH table.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/mathml/support/feature-detection.js"></script>
<script src="/mathml/support/fonts.js"></script>
<style>
math, mspace {
font-size: 10px;
}
@font-face {
font-family: degreebottomraisepercent25-rulethickness1000;
src: url("/fonts/math/radical-degreebottomraisepercent25-rulethickness1000.woff");
}
@font-face {
font-family: displaystyleverticalgap7000-rulethickness1000;
src: url("/fonts/math/radical-displaystyleverticalgap7000-rulethickness1000.woff");
}
@font-face {
font-family: extraascender3000-rulethickness1000;
src: url("/fonts/math/radical-extraascender3000-rulethickness1000.woff");
}
@font-face {
font-family: kernafterdegreeminus5000-rulethickness1000;
src: url("/fonts/math/radical-kernafterdegreeminus5000-rulethickness1000.woff");
}
@font-face {
font-family: kernbeforedegree4000-rulethickness1000;
src: url("/fonts/math/radical-kernbeforedegree4000-rulethickness1000.woff");
}
@font-face {
font-family: verticalgap6000-rulethickness1000;
src: url("/fonts/math/radical-verticalgap6000-rulethickness1000.woff");
}
@font-face {
font-family: rulethickness8000;
src: url("/fonts/math/radical-rulethickness8000.woff");
}
</style>
<script>
var emToPx = 10 / 1000; // font-size: 10px, font.em = 1000
var epsilon = 1;
function getBox(aId) {
return document.getElementById(aId).getBoundingClientRect();
}
setup({ explicit_done: true });
window.addEventListener("load", () => { loadAllFonts().then(runTests); });
function runTests() {
test(function() {
assert_true(MathMLFeatureDetection.has_mspace());
var v1 = 25;
var v2 = 1000 * emToPx;
var radicalHeight = getBox("base001").height + v2;
assert_approx_equals(getBox("ref001").top - getBox("index001").bottom,
v1 * radicalHeight / 100, epsilon,
"mroot: vertical position of index");
}, "RadicalDegreeBottomRaisePercent");
test(function() {
assert_true(MathMLFeatureDetection.has_mspace());
var v1 = 7000 * emToPx;
var v2 = 1000 * emToPx;
assert_approx_equals(getBox("base0021").top - getBox("radical0021").top,
v1 + v2, epsilon,
"msqrt: vertical gap");
assert_approx_equals(getBox("base0022").top - getBox("radical0022").top,
v1 + v2, epsilon,
"mroot: vertical gap");
}, "RadicalDisplayStyleVerticalGap");
test(function() {
assert_true(MathMLFeatureDetection.has_mspace());
var v1 = 3000 * emToPx;
var v2 = 1000 * emToPx;
assert_approx_equals(getBox("base0031").top - getBox("radical0031").top,
v1 + v2, epsilon,
"msqrt: vertical gap");
assert_approx_equals(getBox("base0032").top - getBox("radical0032").top,
v1 + v2, epsilon,
"mroot: vertical gap");
}, "RadicalExtraAscender");
test(function() {
assert_true(MathMLFeatureDetection.has_mspace());
// Note: the size variants of U+221A in this font have width 1000.
var v1 = 5000 * emToPx;
var radicalSymbolWidth = 1000 * emToPx;
var radicalLeft = getBox("base004").left - radicalSymbolWidth;
assert_approx_equals(getBox("index004").right - radicalLeft,
v1, epsilon,
"mroot: kern after degree");
}, "RadicalKernAfterDegree");
test(function() {
assert_true(MathMLFeatureDetection.has_mspace());
var v1 = 4000 * emToPx;
assert_approx_equals(getBox("index005").left - getBox("radical005").left,
v1, epsilon,
"mroot: kern before degree");
}, "RadicalKernBeforeDegree");
test(function() {
assert_true(MathMLFeatureDetection.has_mspace());
var v = 8000 * emToPx;
assert_approx_equals(getBox("base0061").top - getBox("radical0061").top,
v, epsilon,
"msqrt: vertical gap");
assert_approx_equals(getBox("base0062").top - getBox("radical0062").top,
v, epsilon,
"msqrt: vertical gap");
}, "RadicalRuleThickness");
test(function() {
assert_true(MathMLFeatureDetection.has_mspace());
var v1 = 6000 * emToPx;
var v2 = 1000 * emToPx;
assert_approx_equals(getBox("base0071").top - getBox("radical0071").top,
v1 + v2, epsilon,
"msqrt: vertical gap");
assert_approx_equals(getBox("base0072").top - getBox("radical0072").top,
v1 + v2, epsilon,
"msqrt: vertical gap");
}, "RadicalVerticalGap");
done();
}
</script>
</head>
<body>
<div id="log"></div>
<p>
<math style="font-family: degreebottomraisepercent25-rulethickness1000;">
<mspace id="ref001" width="3em" depth="1em" style="background: green"/>
<mroot>
<mspace id="base001" width="3em" height="10em" style="background: green"/>
<mspace id="index001" width="3em" height="1em" style="background: blue"/>
</mroot>
</math>
</p>
<hr/>
<p>
<math display="block"
style="font-family: displaystyleverticalgap7000-rulethickness1000;">
<msqrt style="background: green" id="radical0021">
<mspace id="base0021" width="3em" height="1em" style="background: blue"/>
</msqrt>
<mroot style="background: green" id="radical0022">
<mspace id="base0022" width="3em" height="1em" style="background: blue"/>
<mspace width="3em" height="1em" style="background: black"/>
</mroot>
</math>
</p>
<hr/>
<p>
<math style="font-family: extraascender3000-rulethickness1000;">
<msqrt style="background: green" id="radical0031">
<mspace id="base0031" width="3em" height="1em" style="background: blue"/>
</msqrt>
<mroot style="background: green" id="radical0032">
<mspace id="base0032" width="3em" height="1em" style="background: blue"/>
<mspace width="3em" height="1em" style="background: black"/>
</mroot>
</math>
</p>
<hr/>
<p>
<math style="font-family: kernafterdegreeminus5000-rulethickness1000;">
<mroot>
<mspace id="base004" width="3em" height="2em" style="background: blue"/>
<mspace id="index004" width="7em" height="1em" style="background: green"/>
</mroot>
</math>
</p>
<hr/>
<p>
<math style="font-family: kernbeforedegree4000-rulethickness1000;">
<mroot id="radical005" style="background: blue">
<mspace width="3em" height="1em"/>
<mspace id="index005" width="3em" height="1em" style="background: green"/>
</mroot>
</math>
</p>
<hr/>
<p>
<math style="font-family: rulethickness8000;">
<msqrt style="background: green" id="radical0061">
<mspace id="base0061" width="3em" height="1em" style="background: blue"/>
</msqrt>
<mroot style="background: green" id="radical0062">
<mspace id="base0062" width="3em" height="1em" style="background: blue"/>
<mspace width="3em" height="1em" style="background: black"/>
</mroot>
</math>
</p>
<p>
<math style="font-family: verticalgap6000-rulethickness1000;">
<msqrt style="background: green" id="radical0071">
<mspace id="base0071" width="3em" height="1em" style="background: blue"/>
</msqrt>
<mroot style="background: green" id="radical0072">
<mspace id="base0072" width="3em" height="1em" style="background: blue"/>
<mspace width="3em" height="1em" style="background: black"/>
</mroot>
</math>
</p>
</body>
</html>
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