garageCube

Posted: **Sun Apr 15, 2007 5:34 pm**

Hi guys,

A couple of months ago I started working on the WiiM8 (http://www.ramdac.be - forum thread). I finally found some time to improve it and add more options like controlling color, scale, ... with the Wii-remote, another big improvement is the addition of value smoothing as the original version was very "twitchy".

At the moment I'm looking into the back-end of the module in Xcode and optimization of my python code in the module as I believe this could be achieved with much less code.

Here's a part of my PeriodicalEvent code

Code: Select all

      x = txt[0]
      x = float(x)
      
      #x signal smoothing
      listx.append(x)
      if len(listx) == 4:
         del listx[0]
      x = (listx[0]+2*listx[1] + listx[2])/4

      #visualize value
      module.setValue ('accX',0,x)
      
      #mode selection
      if mode == 'rotate':
         x -= x0
         x = x/xdiv
         x = asin(x)
         x = degrees(x)
         module.setValue ('degX',0,x)
         modul8.setValue ('direct_layer_rotation_z',x,0)
      elif mode == 'colorize':
         x -= x0
         x = x/xdiv
         x = asin(x)
         modul8.setValue ('direct_layer_color_additiveR',x,0)
      elif mode == 'scale':
         x -= x0
         x = x/xdiv
         x = asin(x)
         modul8.setValue ('direct_layer_scale_x',x,0)

I think this part is actually quite OK, the matter is that I've copied this part 3 times, for the X, Y and Z values of the 3-axis accelerometers. I believe this could be achieved much easier using 'def' so I can define 1 function to use for the X, Y, Z values but this is where it usually goes wrong.

Any help on defining this function would be greatly appreciated.

Here's the full PeriodicalEvent code:

Code: Select all

count += elapsed

if calc == 'done'   :
   if count >= 0.04 : #25fps
      count = 0.0
      resetvalues()
            
      x = txt[0]
      x = float(x)
      
      #x signal smoothing
      listx.append(x)
      if len(listx) == 4:
         del listx[0]
      x = (listx[0]+2*listx[1] + listx[2])/4

      #visualize value
      module.setValue ('accX',0,x)
      
      #mode selection
      if mode == 'rotate':
         x -= x0
         x = x/xdiv
         x = asin(x)
         x = degrees(x)
         module.setValue ('degX',0,x)
         modul8.setValue ('direct_layer_rotation_z',x,0)
      elif mode == 'colorize':
         x -= x0
         x = x/xdiv
         x = asin(x)
         modul8.setValue ('direct_layer_color_additiveR',x,0)
      elif mode == 'scale':
         x -= x0
         x = x/xdiv
         x = asin(x)
         modul8.setValue ('direct_layer_scale_x',x,0)
         
      y = txt[1]
      y = float(y)
      
      #y signal smoothing
      listy.append(y)
      if len(listy) == 4:
         del listy[0]
      y = (listy[0]+2*listy[1] + listy[2])/4
      
      #visualize value
      module.setValue ('accY',0,y)

      #mode selection
      if mode == 'rotate':
         y -= y0
         y = y/ydiv
         y = asin(y)
         y = degrees(y)
         module.setValue ('degY',0,y)
         modul8.setValue ('direct_layer_rotation_x',y,0)
      elif mode == 'colorize':
         y -= y0
         y = y/ydiv
         y = asin(y)
         modul8.setValue ('direct_layer_color_additiveG',y,0)
      elif mode == 'scale':
         y -= y0
         y = y/ydiv
         y = asin(y)
         modul8.setValue ('direct_layer_scale_y',y,0)

      
      z = txt[2]
      z = float(z)
      
      #z signal smoothing
      listz.append(z)      
      if len(listz) == 4:
         del listz[0]
      z = (listz[0]+2*listz[1] + listz[2])/4
      
      #visualize value
      module.setValue ('accZ',0,z)
      
      #mode selection
      if mode == 'rotate':
         z -= z0
         z = z/zdiv
         z = asin(z)
         z = degrees(z)
         module.setValue ('degZ',0,z)
         modul8.setValue ('direct_layer_rotation_z',z,0)
      elif mode == 'colorize':
         z -= z0
         z = z/zdiv
         z = asin(z)
         modul8.setValue ('direct_layer_color_additiveB',z,0)
      elif mode == 'scale':
         z -= z0
         z = z/zdiv
         z = asin(z)
         modul8.setValue ('direct_layer_scale_z',z,0)

Thanks in advance,

Kevin

Posted: **Mon Apr 16, 2007 7:34 pm**

tu peux utiliser un script qui va evaluer x y et z au sein d'une fonction: voici le principe de base

Code: Select all

# considérons 3 modules de barre , 'barx', 'bary', 'barz' avec comme valeurs assignables un float allant de 0.0 à 5.0

x0 = 5
y0 = 3
z0 = 1.5

paramlist=['x','y','z'] # listes des paramètres à optimiser

#definition de la fonction qui évalue les objets selon la liste de paramètres
def test ():
   for i in paramlist:
      tempval=  eval(i+'0') # évaluation de respectivement x0,y0 et z0
      moduletemp = 'bar'+i # création d'un pointeur vers un module
      module.setValue(moduletemp,0,tempval) #application des valeurs dynamiques
      


test() #exécution de la fonction

Posted: **Mon Apr 16, 2007 10:22 pm**

Did that solve it for you? If not, I'd take a stab at it. Are you going to post that module soon? I'd love to try it out soon.

Posted: **Tue Apr 17, 2007 4:04 pm**

The above sollution didn't solve it but after f*cking around with it for some hours I got finally got it

.

Code: Select all

def wiictrl(b, c, a0, adiv, accvis = '', degvis = '', rot = '', col = '', sca = ''):
   a = txt[b]
   a = float(a)
   
   #x signal smoothing
   c.append(a)
   if len(c) == 4:
      del c[0]
   a = (c[0]+2*c[1] + c[2])/4
   
   
   #visualize value
   module.setValue (accvis,0,a)
   
   #mode selection
   if mode == 'rotate':
      a -= a0
      a = a/adiv
      a = asin(a)
      a = degrees(a)
      print a
      module.setValue (degvis,0,a)
      modul8.setValue (rot,a,0)
   
   elif mode == 'colorize':
      a -= a0
      a = a/adiv
      modul8.setValue (col,a,0)
   
   elif mode == 'scale':
      a -= a0
      a = a/adiv
      a = asin(a)
      modul8.setValue (sca,a,0)

and the triggering lines for x, y and z:

Code: Select all

wiictrl(0,listx,x0,xdiv,accvis = 'accX', degvis = 'degX', rot = 'direct_layer_rotation_z', col = 'direct_layer_color_additiveR', sca = 'direct_layer_scale_x')

wiictrl(1,listy,y0,ydiv,accvis = 'accY', degvis = 'degY', rot = 'direct_layer_rotation_y', col = 'direct_layer_color_additiveG', sca = 'direct_layer_scale_y')
      
wiictrl(2,listz,z0,zdiv,accvis = 'accZ', degvis = 'degZ', rot = 'direct_layer_rotation_x', col = 'direct_layer_color_additiveB', sca = 'direct_layer_scale_z')

Way cleaner I'd say

Thanks for the input guys!

I'll be uploading the new module to the project blog (http://www.ramdac.be) when ready, I'll keep you guys updated!

Posted: **Tue Apr 17, 2007 4:50 pm**

oh yeah taht's smart i totally forgot that we cold add expresisons inside arguements

i eager to test your module.
hehe i already have a wiimote and tried with wii to midi but the signal is so jerky. i saw you used a mean over 4 values to smooth it, did you think about adding a tweaking pot to change the smoothing amount?

Posted: **Tue Apr 17, 2007 9:31 pm**

Posted the updated version on my blog, all necessary files included, be sure to check te readme file

right after the jump!

Feel free to comment on it on my project blog and have fun with it!

Posted: **Thu Apr 19, 2007 11:00 am**

Nice Work! I fiddled around with it for a short while and after a while I seemed to get most things working propperly. I never got the color option to work however. Now off to work, no time for play.

Posted: **Mon Jun 02, 2008 9:07 pm**

Hey guys,

do you think this module is gonna be shared for us non coding lunatics.
Only im driving myself up the wall checking ramdac and attempting to email a pop3 account that gets returned nonetheless.

I need this module should I be able to compile it using just this script for I have no idea unfortunately, I am at your mercy.

Ramdac wwhats happenin dude?

garageCube

Code optimization

Code optimization

WII MODULE ELUSIVE! :(