[sdiy] Silly vector synth question

[Tom Wiltshire]

On 6 Feb 2011, at 13:54, Colin f wrote:

> 
>> I'm going to have to think about what they did to the simple 
>> X and Y position to get those numbers. It means the two axes 
>> are not independent, since the amount of E and W is affected 
>> by the position on the N-S axis.
> 
> Took 5 minutes to work it out in Excel...
> http://www.colinfraser.com/vector-pan.gif
> For each osc, the % level is the entry in the table found using the x and y
> distance of the stick from that osc's corner position.
> If you add up the 4 values reflected around the centre values (in grey),
> they'll always add up to 100.
> 
> Cheers,
> Colin f

Nice.
This is using the method Magnus suggested, isn't it?

There's one quirk though. If you push the stick fully NE (say), the X and Y positions is *not* 100, 100, since the joystick can only move out the the edge of a circle. From what the Sequential manual says and the examples, it looks like they dealt with that too.

T.