thanks, cart2pol in zexy works great for me
James
Quoth Patrice Colet, on 06/01/2013 22:02:
hello,
what about converting cartesian to polar coordinates instead?
with something like
angle = atan(y/x)
you can even get the distance from the center with
R = Sqrt(x2 + y2)
that should be a lot easier
----- Mail original -----
De: "James Dunn" <[email protected]>
À: "pd-list" <[email protected]>
Envoyé: Dimanche 6 Janvier 2013 22:28:30
Objet: [PD] Circular scrolling in pd
Hi,
I'm trying to implement circular scrolling with the trackpad in pd
and
am approaching it by dividing a circle into segments and trying to
detect when the mouses moves from one segment to the other. At the
moment I can only detect 4 segments (basically just the zero
crossings)
which is not really accurate enough.
How would I go about detecting the boundaries of the 12 segments in
the
attached patch (circscroll.pd)?
Eventually I want to detect speed and direction too - but perhaps
there
is a better approach?
any advice welcome.
thanks,
james
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