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Mr_Ridd

Degrees to Radian

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Hey How do I convert degress to radians and vica versa. I searched google but could find anything that worked. I tested it against this, http://www.hal-pc.org/~johnnie2/tutors/degToRadian.html Thanks

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Little bit of help. (it has a script. Find the script, and it will tell you what you need to do).


<html>
<head>
<title>MICROGOODIES - Javascript Degree to Radian Converter</title>

<script language="Javascript">
function convert() {
var radian = (document.makeRadian.degree.value / 180) * 3.142;
radian = radian.toString();
radian = radian.substring(0, radian.indexOf(".") + 4);

if (radian > 1) {
radian += " radians";
}
else {
radian += " radian";
}

document.makeRadian.radian.value = radian;
}
</script>

</head>
<body onLoad="document.makeRadian.degree.focus()">

<h2>Degree to Radian Converter</h2>

<form name="makeRadian">

<table>

<tr>
<td>

Enter your degree measure:<p>
The radian measure is:

</td>
<td>

<input type="text" name="degree" size="25" onkeyup="convert()" onkeydown="convert()"><p>
<input type="text" name="radian" size="25">

</td>
</tr>
</table>

</form>

<p align="center">Copyright &copy; 2000 <a href="mailto:johnnie2@hal-pc.org">Johnnie Rose, Jr.</a></p>

</body>
</html>



? (hint: Look at the script tags)

From,
Nice coder

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I use these two macros:


#define DegToRad(x) (x * (D3DX_PI / 180.0f))
#define RadToDeg(x) (x * (D3DX_PI * 180.0f))


Just replace D3DX_PI with your favourite version of Pi

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Guest Anonymous Poster
Quote:
Original post by Mr_Ridd
How do I convert degress to radians and vica versa.


You don't really have to search google in order to do that.

180 degrees = PI radians
x degrees = ? radians ==> (PI * x) / 180.0 radians
? degrees = y radians ==> (180 * y) / PI degrees

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