Control the number of Decimal points of a random number with a slider control

[Nawaz Alamgir]

I managed to figure it out.

2 sliders one called value which generates the number with this in the source

seedRandom(index, true)
random(0,100)

and another slider with the code

places = effect("Number of Decimals")("Slider");
val = effect("Value")("Slider"); //sub in the name of your slider here
factor = Math.pow(0.1, places) ;
sign = "";
if (val < 0) sign = "-";
val = Math.abs(val);
whole = Math.floor(val);
fraction = "" + Math.round((val - whole)/factor)*factor;
for (fraction; fraction.length < places+2; fraction+="0");

sign + whole + "." + fraction.substring(2, places+2)

[Nawaz Alamgir]

But, if you have a better way of doing this please let me know

[Andrei Popa]

Your code is rather complicated. If you have a random number and want to round it to x decimals, just go

var myNumber = someRandomNumber;
var multiplicator = Math.pow(10,x);
Math.round(myNumber*multiplicator)/multiplicator;


To simple things up, multiplicator is 10 if you want a decimat, 100 if you want 2 etc.

Andrei
My Envato portfolio.

[Kalleheikki Kannisto]

Or
parseFloat(random(100)).toFixed(Math.round(*pick-whip slider value here*));

Kalleheikki Kannisto
Senior Graphic Designer