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/*
* FusionCharts Free v2
* http://www.fusioncharts.com/free
*
* Copyright (c) 2009 InfoSoft Global (P) Ltd.
* Dual licensed under the MIT (X11) and GNU GPL licenses.
* http://www.fusioncharts.com/free/license
*
* MIT License: http://www.opensource.org/licenses/mit-license.php
* GPL License: http://www.gnu.org/copyleft/gpl.html
*
* Date: 2009-08-21
*/
//--------------------------------------------------------------------------------
/*
Utility function definitions
This file contains extensions to the base Math Object.
All the functions contained in this file can be used with any other Flash MX/+ movie for common procedures
*/
Math.formatDecimals = function(num, decimalPrecision) {
//An extension of the Math object
//This function formats a number into specified number of decimal places
//If no decimal places needed, we're done
if (decimalPrecision<=0) {
return Math.round(num);
}
//Round the number to specified decimal places
//e.g. 12.3456 to 3 digits (12.346) -> mult. by 10^decimalPrecision, round, div. by 10^decimalPrecision
var tenToPower = Math.pow(10, decimalPrecision);
var cropped = String(Math.round(num*tenToPower)/tenToPower);
//Add decimal point if missing
if (cropped.indexOf(".") == -1) {
cropped += ".0";
//e.g. 5 -> 5.0 (at least one zero is needed)
}
//Finally, force correct number of zeroes; add some if necessary
var halves = cropped.split(".");
//Grab numbers to the right of the decimal
//Compare digits in right half of string to digits wanted
var zerosNeeded = decimalPrecision-halves[1].length;
//Number of zeros to add
for (var i = 1; i<=zerosNeeded; i++) {
//Add them
cropped += "0";
}
return (cropped);
};
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