Selection : List Boxes
List selection boxes allow to select one or several items among a list, return and use it/them in downstream computations.
There exist two list selection boxes :
-
single-item-list
-
** multi-item-list **
Features
Inputs and Outputs
List selection boxes have one input and one output :
-
the “items” input is a list of atoms or strings to be displayed in the list
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the output returns the selected item(s).
—|—
To set the content of a box :
-
click or
SHIFTclick on the box’s input, -
enter a list of items in the argument’s data box.
When evaluated, the box returns the selected item.
—|—
Default Item
By default, the first item is selected and reset when the box is initialized.
Lock the Box to Preserve Its Items
If the box is not locked, the selected item as well as the list of items will be reinitialized when the box is evaluated.
Boxes
Single-Item-List
The single-item-list allows to select only one item at a time.
To select an item,
-
press
bto lock the box, -
click on an item.
Multi-Item-List
This box allows to select one or more items, which are returned as a list.
The multi-item-list is edited and used as as single-item-list .
-
To select consecutive items or all the items of the box,
SHIFTclick on the items or click and drag them. -
To select independent items,
Cmdclick on them.
A Musical Application : an Extended Example
Building a Triad with an Item-List-Box, a Button-Box, and a Check Box
References :
Contents :
- OpenMusic Documentation
- OM User Manual
- OpenMusic QuickStart