Hi everybody,

I just passed a night on this and i going to get mad with this problem...

I would like to generate a white square that move everytime i send a bang. this is going to happen a lot of time so i'd like to do it dinamicly...

So I have my patch :

[gemhead]
l
[translateXYZ]
l
[rectangle]

I realy don't understand how i can "call" this patch dinamicaly so that every bang send add a new rectangle and do not erase the first one...

Thx for your answers!

Not sure if I understand what you mean exactly, but I've attached a patch that generates the patch you drew. You can display up to eight rectangles in [gemwin] for now (at least so that they are visible), and delete them all at once so you can start over.
Let me know if it's of any help.

Cheers

http://www.pdpatchrepo.info/hurleur/dynamic_square.pd

I do not have the time to analyse your patch for the moment but it's something like this i was looking for!
Thx
I still havec a question... Is it possible to 'kill' some square after a moment to save memory cause i could have a flow of 100 gem object in the same time...

You can always send a zero to [gemhead] and it will stop rendering the respective shape...
If you want to delete the patch you'll have to send [delete $1( to [s pd-nameofyoursubpatch] where $1 is the index of your subpatch that contains the gem objects...
You will actually have to build an algorithm that does what you want. I guess that [trigger] and [delay] will be your friends for that..

Yes it's exactly what I needed, i'll try it this weekend and tell you if it's work..
Huge thanks alexandros

I guess you can do the same using [repeat] instead of creating the same subpatch every time, but haven't dealt with that myself..

Hey Alexandros, it works fine, thanks a lot !

I just still have a proble with the delete beacause I don't have the canvasdelete patch...

could you tell me more about this? thanks again!

[canvasdelete] is part of the iemguts library. Make sure you have installed it and it's in a place Pd knows (like the extra directory, that's where I have it) and then you can use it by importing the library with [import iemguts]. Once you have a [canvasdelete] object in the parent patch you can send a [delete $1( message to your subpatch, where $1 is the index of the object you want to delete, and it should work fine.

I have some trouble to instal this library... Is there any other way to simply delete a subpatch?

find and cut seems to crash pd... I could use edit mode to cut but i don't know how it works...

Check help->help browser->Pure Data->manuals->pd-msg and you'll get quite some examples covering how Pd reacts to messages (creating objects, moving them around and stuff). I think specifically 1.msg_and_patch->3.1.motion.pd will be of interest to you. Still this is a bit too much work for what you want.
Some structure like this would help more:

[gemhead]
|
[t a a]______
| [square]
[repeat]
|
[separator]
|
[translateXYZ]

you need to connect a number to the right inlet of [repeat] and whenever you increase it, you'll get a new square (mind changing the XY coords every time). Haven't tried it much, but that's what it's supposed to do, repeat whatever comes in as many times as you tell it to.