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 # RARegionsOfInterestCollection

 Last update: 17.07.2025 

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### *class* RARegionsOfInterestCollection

Rocky PrePost Scripting wrapper for the collection of Regions of Interest in a project.

This wrapper corresponds to the “Regions Of Interest” item in the project’s data tree. To retrieve the [`RARegionsOfInterestCollection`](#generated.RARegionsOfInterestCollection) from a [`RAStudy`](RAStudy.md#generated.RAStudy), use:

&gt; roi\_collection = study.GetRegionsOfInterestCollection()

Instances of the [`RARegionsOfInterestCollection`](#generated.RARegionsOfInterestCollection) class act as regular Python lists, and can be iterated on, accessed via index, etc:

**Methods:**

NameDescription[`AddCube`](#generated.RARegionsOfInterestCollection.AddCube)(\[name\])Add a new Cube.[`AddCylinder`](#generated.RARegionsOfInterestCollection.AddCylinder)(\[name\])Add a new Cylinder.[`Clear`](#generated.RARegionsOfInterestCollection.Clear)()Remove all items from the list.[`New`](#generated.RARegionsOfInterestCollection.New)()Add a new item.[`Remove`](#generated.RARegionsOfInterestCollection.Remove)(item)Remove an item from the list.<a id="generated.RARegionsOfInterestCollection.AddCube"></a>

#### AddCube(name: str | None = None)

Add a new Cube. Returns the newly created item.

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#### AddCylinder(name: str | None = None)

Add a new Cylinder. Returns the newly created item.

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#### Clear()

Remove all items from the list.

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#### New()

Add a new item. Returns the newly created item.

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#### Remove(item: T)

Remove an item from the list.