[sdiy] Silly vector synth question

[Colin f]

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

Possibly... I only just saw Magnus' post.
Here's the formula I used:
http://www.colinfraser.com/vector-pan-formula.gif
I filled in the purely linear values for x distance = 0 and y distance = 0
The formula shown for D4 can be auto-filled to the rest of the table.
Two divides and a subtract is probably easy enough to not bother with the
LUT.
 
> 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.

Is that true ? I've never seen a VS in the flesh.
In that case, you could just map the diamond within the 4 closest points to
each corner you can reach with the stick.
If the distance for any osc is > 100, its value remains zero.
I suppose that gives you a bit of a dead-zone where you can be sure you only
get a fade between two oscs.
Does the VS do something smarter ?

Cheers,
Colin f