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Gast · Verfasst am: 19 Feb 2010 14:54 Titel:

habe schon was gefunden

/***********************************************
*
* Function : getColor
*
* Parameters : start - the start color (in the form "RRGGBB" e.g. "FF00AC")
* end - the end color (in the form "RRGGBB" e.g. "FF00AC")
* percent - the percent (0-100) of the fade between start & end
*
* returns : color in the form "#RRGGBB" e.g. "#FA13CE"
*
* Description : This is a utility function. Given a start and end color and
* a percentage fade it returns a color in between the 2 colors
*
* Author : www.JavaScript-FX.com
*
*************************************************/
function getColor(start, end, percent)
{
var r1=hex2dec(start.slice(0,2));
var g1=hex2dec(start.slice(2,4));
var b1=hex2dec(start.slice(4,6));

var r2=hex2dec(end.slice(0,2));
var g2=hex2dec(end.slice(2,4));
var b2=hex2dec(end.slice(4,6));

var pc = percent/100;

r= Math.floor(r1+(pc*(r2-r1)) + .5);
g= Math.floor(g1+(pc*(g2-g1)) + .5);
b= Math.floor(b1+(pc*(b2-b1)) + .5);

return("#" + dec2hex(r) + dec2hex(g) + dec2hex(b));
}
/*** These are the simplest HEX/DEC conversion routines I could come up with ***/
/*** I have seen a lot of fade routines that seem to make this a ***/
/*** very complex task. I am sure somene else must've had this idea ***/
var hexDigit=new Array("0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F");
function dec2hex(dec){return(hexDigit[dec>>4]+hexDigit[dec&15]);}
function hex2dec(hex){return(parseInt(hex,16))}
/************************************************/