[PD] Re: namecanvas - why deprecated?

[Frank Barknecht]

Hallo,
Matteo Sisti Sette hat gesagt: // Matteo Sisti Sette wrote:

> Frank Barknecht wrote
> 
> > Try:
> >
> >  [clear(
> >  |
> >  [s $0something]
> >
> > That's why [namecanvas] is not the final word on the functionality it
> > provides.
> 
> I don't understand what you mean. If you mean because it makes PD crash,
> then try this:
> 
> [clear(
> |
> [s pd-whateverthisfileiscalled.pd]
> 
> with no use of [namecanvas]. This crashes too.

Well, that's an error of the patch-author. But clearing a patch
containing a [namecanvas] doesn't crash Pd, it just makes the named
canvas unavailable for further processing. Attached patch illustrates
this behaviour.

> The workaround of creating a subpatch (which you may call $0- or 
> $1-something) is ok if all the dynamically generated stuff is "processing 
> stuff", but what if we are dinamically generating interface elements? It is 
> not irrelevant to have to go one level deeper in the patch tree to get a 
> piece of interface visible. I can think of real-life scenarios... 

Well, as I mentioned, this is one usecase for namecanvas, that's not
possible with subpatches. But it's a usecase, that not necessarily
requires a namepatch-object, it is probably better realized with
canvas-Properties similar to graph-on-parent etc.

Ciao
-- 
 Frank Barknecht                 _ ______footils.org_ __goto10.org__
-------------- next part --------------
#N canvas 0 0 450 300 10;
#X obj 125 113 nc;
#X msg 74 59 bang;
#X obj 74 140 pack s s;
#X msg 74 164 \; \$2 \$1;
#X obj 74 84 t b b;
#X msg 74 112 clear;
#X msg 210 58 bang;
#X obj 210 139 pack s s;
#X msg 210 163 \; \$2 \$1;
#X obj 210 83 t b b;
#X msg 210 111 clear;
#X obj 261 112 nc;
#X connect 0 0 2 1;
#X connect 1 0 4 0;
#X connect 2 0 3 0;
#X connect 4 0 5 0;
#X connect 4 1 0 0;
#X connect 5 0 2 0;
#X connect 6 0 9 0;
#X connect 7 0 8 0;
#X connect 9 0 10 0;
#X connect 9 1 11 0;
#X connect 10 0 7 0;
#X connect 11 0 7 1;
-------------- next part --------------
#N canvas 0 0 450 300 10;
#X obj 95 72 inlet;
#X obj 95 176 outlet;
#X obj 158 71 namecanvas \$0-this;
#X obj 95 149 symbol \$0-this;
#X connect 0 0 3 0;
#X connect 3 0 1 0;