[PD] deleting instances of data structures

Hans-Christoph Steiner hans at eds.org
Tue Nov 2 15:39:30 CET 2004

On Nov 2, 2004, at 2:56 AM, Frank Barknecht wrote:

> Hallo,
> Florian Hollerweger hat gesagt: // Florian Hollerweger wrote:
>> I wonder if there is a possibility to delete an instance of a  
>> structure
>> created without having to switch to edit-mode (to delete it  
>> "manually").
>> I imagine something like pointing to the desired instance, and then
>> sending it a [clear< message or something similar.
> I'm not sure, but I don't think, this is possible yet. Maybe you could
> hack and use Pd's internal messages with "cut" here. It might be
> helpful, that you can read out the (x,y) coordinates of data
> structures.
>> I also wonder if it's possible to delete single elements from an array
>> in a similar way.
> I'm quite sure, this isn't possible. You can "resize" an array, but
> this will always delete elements from the end of the array.

You can do this manually in the Properties panel of a "scalar", the  
graphical display of a data structure.  The array data is just a list  
of ; terminated lines.  Add or Remove the lines you don't want.  But I  
don't think its currently possible to do this programmatically.  Unless  
you want to edit the textfile and [read( it in.  But that process has  
bugs in it.



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