Implementing a range slider

Hi,

I was wondering if anyone knows the logic of implementing a range slider.

So the parameters are:
minimum value
maximum value
current value


I guess what I'm confused about is if I want to keep the display size the same for all values then how do I figure out the current display value of the current value?

Using basic algebra; the display value is directly related to the current value:

(current value - min value) / (max value - min value) == (current display value - min display value) / (max display value - min display value)

Normally min display value is 0 and max display value is the width of your slider; thus current display value is the left-offset of the position of the slider.

Thanks that seems to work.