Qibla direction

Developer
Khalid Munir
Size
2,208 Kb
Views
2,024
  1. Qibla direction Previews
  2. Qibla direction HTML Codes
  3. Qibla direction JS Codes

How do I make an qibla direction?

What is a qibla direction? How do you make a qibla direction? This script and codes were developed by Khalid Munir on 11 January 2023, Wednesday.

Qibla direction Previews
IQ Test

Qibla direction - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>qibla direction</title>
</head>
<body> <form> <table class="hel12" width="610"> <tbody> <tr> <td>Latitude (Decimal Deg)</td> <td><input type="text" name="Latitude">e.g., 39.4 ["+" North, "-" South)</td> </tr> <tr> <td>Longitude (Decimal Deg)</td> <td><input type="text" name="Longitude">e.g., -107.9 ["+" East, "-" West)</td> </tr> <tr> <td>Qibla from True North =</td> <td><span id="Qibla"></span></td> </tr> <tr> <td colspan="2" align="center"> <input type="button" value="Calculate" onclick="a=calculate(this.form.Latitude.value,this.form.Longitude.value);displayDirection(a);return false;"> &nbsp; <input type="button" value="Clear" onclick="this.form.reset();clearResult();return false"> </td> </tr> </tbody> </table>
</form> <script src="js/index.js"></script>
</body>
</html>

Qibla direction - Script Codes JS Codes

var PI = Math.PI;
var win = null;
function calculate(lat, lon) {	if (isNaN(lat+0.0) || isNaN(lon+0.0)) {	alert("Non-numeric entry/entries");	return "???";	}	if ((lat-0.0)>(90.0-0.0) || (lat-0.0)<(-90.0-0.0)) {	alert("Latitude must be between -90 and 90 degrees");	return "???";	}	if ((lon-0.0)>(180.0-0.0) || (lon-0.0)<(-180.0-0.0)) {	alert("Longitude must be between -180 and 180 degrees");	return "???";	}	if ((lat+0.0==21.4) && (lon+0.0==39.8)) return "Any Direction";	latk = 21.4225*PI/180.0;	longk = 39.8264*PI/180.0;	phi = lat*PI/180.0;	lambda = lon*PI/180.0;	qiblad = 180.0/PI*Math.atan2(Math.sin(longk-lambda), Math.cos(phi)*Math.tan(latk)-Math.sin(phi)*Math.cos(longk-lambda)); console.log(qiblad);	return (qiblad);
}
function clearResult()
{	if (document.getElementById) document.getElementById('Qibla').innerHTML='';	else if(document.all) document.all['Qibla'].innerText='';	else if (win) {	win.close();	win = null;	}
}
function displayDirection(a)
{	d = (a>=0? a+" degrees East of North" : -a+" degrees West of North");	if (document.getElementById) document.getElementById('Qibla').innerHTML = d;	else if (document.all) document.all['Qibla'].innerText = d;	else {	win = open('','Result','width=200,height=75'); win.document.close(); win.document.write('Qibla direction is <br>'+d);	}
}
Qibla direction - Script Codes
Qibla direction - Script Codes
Home Page Home
Developer Khalid Munir
Username khalidmunir
Uploaded January 11, 2023
Rating 3
Size 2,208 Kb
Views 2,024
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