Nathaniel Virgo wrote:
>
> Hi Uri
>
> From solving your formulae as simultaneous equations it looks like
> deviation = lo - hi;
> center = lo/(1 - lo + hi);
>
> hth
> Nathaniel
>
>
> 2009/7/23 Uri Sala <
urisala@xxxxxxxxx>
>
>> Hey
>>
>> I am controlling 2 variables, the center pitch and the deviation, through
>> 2
>> knobs. I am visualizing what this in a range slider through the following
>> formula:
>>
>> lo = center - (center * deviation);
>> hi = center + ((1 - center) * deviation);
>> This means I visualize center and dev as a sort of rrand(lo,hi).
>>
>> Now, I would also like to control these variables through the slider,
>> but
>> I cannot seem to find the formula that gives me the center and the
>> deviation
>> knowing upper and lower limits. Any clues?
>>
>> Thanks
>> Uri
>>
>
>