[PD] Manual conversion of a Pure Data file in Max/MSP

[marius schebella]

hey,
in many cases it is not relevant, which of two messages are sent first, 
when they are not are not connected to hot inlets.

if you look at a patch and know what it does, you should be able to tell 
which connection has to go first.

to really see which object connection was created first you can also 
copy the related objects including their connections into a new empty 
patch and open it then with a texteditor. the file will give you 
something like
#N canvas 0 22 454 304 10;
#X obj 165 101 +;
#X floatatom 165 56 5 0 0 0 - - -;
#X connect 1 0 0 1;
#X connect 1 0 0 0;
ignore the first line. the second line is a [- ] ("minus") object, the 
third a numberbox. then you have the connections: connect object #1, 
outlet #0 to object #0, outlet #1. object 1 (the counting is 0-based) is 
the numberbox, which was created after the [- ], so it appears after the 
[- ] in the textfile. the last line then makes the other connection 
(from the numberbox to the left inlet of [-])
of course this works for every number of objects and connection, but if 
you have too many objects, counting can be difficult.
hans christoph also wrote a patch, that creates itself in another window 
step by step, by reading its own pd-file. there you can watch the 
creation and also look at the order in which the objects are connected.
that said, I only can repeat what posters said before, you _have_ to use 
trigger, because this behaviour of first creation is not garantueed to 
work in every situation, it might change with future versions of pd, or 
when you convert to another fileformat (like max...), or whatever.
marius.


Andy Farnell wrote:
> 
> I think the question here is "how can I tell which order they were connected
> in the Pd patch" (in order to rebuild it in Max). I am unsure about this, but
> as I said on the forum - read the Pd file because the order of the connection
> matrix is the order of creation. But since the *evaluation order* is undefined
> I don't really think this will help.
> 
> On Tue, 25 Sep 2007 09:47:49 +0200
> Frank Barknecht <fbar at footils.org> wrote:
> 
>> Hallo,
>> CUNHA Claudio hat gesagt: // CUNHA Claudio wrote:
>>
>>> I must to convert manually a Pure Data patch in Max/MSP but I have a problem...
>>>
>>> In Max/MSP, if an object's outlet is connected to several destinations, corresponding messages are always sent in right-to-left screen order. But in Pure Data, the messages are sent in the order you made the connections in. 
>>>
>>> How then I do to know the order in which objects were placed?
>> You just don't! 
>>
>> That's why the correct way to patch is to always use
>> [trigger]-objects. (Never believe a patch unless it has a [t] object
>> inside!)
>>
>>> A person said me that I must to put some "triggers" in the PD file and that it should be checked that it functions correctly... And then I put "triggers" in a Max/MSP file for working in the same order... But is there no other solutions???
>> No other solution: you have to use triggers!
>>
>> Ciao
>> -- 
>>  Frank Barknecht                 _ ______footils.org_ __goto10.org__
>>
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>