How to access the object of a list

[alessandra]

Hello,

i have this program

load_file("nrngui.hoc")

create soma[5]
objref listsoma
forall insert pas

listsoma = new SectionList()

forall {
listsoma.append()
}

access listsoma.object(0)
print secname()

The problem is access listsoma.object(0). In particular the error is the following

NEURON -- Release 7.4 (1370:16a7055d4a86) 2015-11-09
Duke, Yale, and the BlueBrain Project -- Copyright 1984-2015
See http://www.neuron.yale.edu/neuron/credits

1
object not a public member of SectionList
c:\nrn\bin\nrniv.exe: SectionList object
in C:/Users/alessandra/Desktop/test-nc.hoc near line 13
access listsoma.object(0)
^

How can i solve the problem?

Than you

Alessandra

[ted]

The SectionList class doesn't have an object method; if it did, the method would be documented in the Programmer's Reference entry about SectionList.

The most useful answer to your question depends on why you want to access a particular element in a SectionList.

[alessandra]

I'd like to build an array of sections that i can pass as an argument of a proc.

[ted]

Presumably you have a collection of sections that have some shared property. You could append them to a SectionList, then pass that SectionList as an argument. In the proc you can then iterate over all the sections like so:

Code: Select all

// $o1 is a SectionList
proc foo() {
  forsec $o1 {
    . . . statements . . .
  }
}

FYI the CellBuilder's Subsets page actually creates SectionLists.