VL

Overview

The most important components of VL are Nodes and Links.

Nodes and links live on a canvas called Patch.

One or multiple patches are contained in a VL Document. VL Documents are stored as files on disk.

Every patch can define one or more Operations. Operations can be created as nodes in other patches.

There are two kinds of patches, one is merely a container for independent operations the other is a data type. If a patch is a data type its operations can store and/or share data via Properties. Properties can be accessed and/or modified in operations via Pads.

One VL Document A can reference another VL Document B to use its data types and operations as nodes. File B is then called a Dependency of A.

Patches can also contain Regions. A region defines a new computational context. There are different kinds of regions.

Nodes and regions can have inputs and outputs called Pins.

Static data can be entered into an operation using IOBoxes. IOBoxes are little editors for basic types like numbers, text, color… They can also be used to display the current value of anything connected upstream.

Links transport data from outputs to inputs. Therefore they define the data flow and execution order of the nodes in an operation.

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