[CM] problem with doubles and SC

[Joshua Parmenter]

It seems like if this is a problem, perhaps the code that generates  
the .osc scores should check for doubles?

Josh

******************************************
Joshua Parmenter
joshp@u.washington.edu
Post-Doctoral Research Associate - Center for Digital Arts and  
Experimental Media
Raitt Hall - University of Washington
Seattle, Washington 98195

http://www.dxarts.washington.edu
http://homepage.mac.com/joshpar



On Dec 12, 2005, at 2:02 PM, Rick Taube wrote:

> yes using (coerce  pi 'single-float)  works:
>
> ? (coerce  pi 'single-float)
> 3.1415927
> ? (events (new test :pi (coerce  pi 'single-float)  :time 0)  
> "test.osc" :play nil)
> "test.osc"
> (dumposc "test.osc")
> [
> [0.0, ["/g_new", 1, 0, 0]],
> [0.0, ["/s_new", "test", -1, 0, 1, "pi", 3.1415927]],
> [5.0, ["/none"]],
> [5.0, ["/none"]]
> ]
> T
> ?
>
>
>
>
> On Dec 12, 2005, at 12:50 PM, nik gaffney wrote:
>
>> hi,
>>
>> you might want to check the typetag sent with the message, since  
>> doubles are not  'standard' osc datatypes, this might be a problem.
>>
>> if you dont need 64bits, coerce to a single first. if you do  
>> really need 64bit precision in supercollider, then its probably  
>> acceptable to output correctly encoded 64bit floats, with the  
>> typetag 'd'.
>>
>> see >> http://www.opensoundcontrol.org/spec-1_0
>>
>>> There seems to be a problem with OSC and doubles... what follows  
>>> is a short example using pi. Notice that when the object is  
>>> created, it prints in the listener correctly, but once it is  
>>> written out to the .osc file (and then read back with dumposc),  
>>> the values is definitely wrong (5.7094773E-9)
>>> Any ideas?
>>> Thanks,
>>> Josh
>>> ? (defobject test (scsynth) (pi) (:parameters pi time))
>>> ? (new test :pi pi :time 0.0)
>>> #i(test time 0.0 node -1 add-action 0 target 1 pi  
>>> 3.141592653589793D0)
>>> ? (events (new test :pi pi :time 0) "test.osc" :play nil)
>>> "test.osc"
>>> ? (dumposc "test.osc")
>>> [
>>> [0.0, ["/g_new", 1, 0, 0]],
>>> [0.0, ["/s_new", "test", -1, 0, 1, "pi", 5.7094773E-9]],
>>> [5.0, ["/none"]],
>>> [5.0, ["/none"]]
>>> ]
>>> T
>>> ?
>>> ******************************************
>>> Joshua Parmenter
>>> joshp@u.washington.edu
>>> Post-Doctoral Research Associate - Center for Digital Arts and  
>>> Experimental Media
>>> Raitt Hall - University of Washington
>>> Seattle, Washington 98195
>>> http://www.dxarts.washington.edu
>>> http://homepage.mac.com/joshpar
>>> _______________________________________________
>>> Cmdist mailing list
>>> Cmdist@ccrma.stanford.edu
>>> http://ccrma-mail.stanford.edu/mailman/listinfo/cmdist
>>
>> _______________________________________________
>> Cmdist mailing list
>> Cmdist@ccrma.stanford.edu
>> http://ccrma-mail.stanford.edu/mailman/listinfo/cmdist
>