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how can I make a smooth theremin?
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ventalator



Joined: 05 Apr 2007
Posts: 2

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PostPosted: Thu Apr 05, 2007 2:34 pm    Post subject:
I was wondering if anyone has any idea of the algorithm/equation used in GlovePIE's MapRange function?

It's driving me nuts cause i'm trying to use it to replicate the SoundAngle script in C# (which i've got working) but i've realised that my crapy algorithm only works when i'm mapping an angle between -90 and 90 to a range of 13-100... So obviously i'd like my function to be as robust as Carl's :p

Any help would be much appreciated.
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TiagoTiago



Joined: 20 Jan 2007
Posts: 710
Location: Brasil
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PostPosted: Thu Apr 05, 2007 6:59 pm    Post subject:
I believe maprange does just some simple math, somthign like


Code:
var.newvalue = maprange(wiimote1.pitch, -90,90,13, 100)


would be more or less like

Code:
var.orimin = -90
var.orimax = 90
var.newmin = 13
var.newmax = 100

var.newvalue = (((wiimote1.pitch + (0 - var.orimin)) / (var.orimax-var.orimin)) * (var.newmax-var.newmin)) + var.newmin

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Last edited by TiagoTiago on Sat Apr 07, 2007 2:38 pm; edited 2 times in total
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ventalator



Joined: 05 Apr 2007
Posts: 2

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PostPosted: Sat Apr 07, 2007 6:22 am    Post subject:
Really appreciate that TiagoTiago, that works perfectly.
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