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# StructureBuilder

An object that combines multiple scan sessions into a single captured result.

```
class StructureBuilder
```

## Overview

This class in conjunction with [`CapturedStructure`](/documentation/RoomPlan/CapturedStructure) enables an app to export a 3D model that consists of multiple [`CapturedRoom`](/documentation/RoomPlan/CapturedRoom) instances. First, combine the rooms into a single captured result by calling [`capturedStructure(from:)`](/documentation/RoomPlan/StructureBuilder/capturedStructure(from:)). Then, generate a 3D model of the whole structure by calling [`export(to:metadataURL:modelProvider:exportOptions:)`](/documentation/RoomPlan/CapturedStructure/export(to:metadataURL:modelProvider:exportOptions:)).

## Topics

### Creating a structure builder

[`init(options:)`](/documentation/RoomPlan/StructureBuilder/init(options:))

Creates a structure builder using the specified options.

[`ConfigurationOptions`](/documentation/RoomPlan/StructureBuilder/ConfigurationOptions)

Options that configure a structure builder.

### Building a captured structure

[`capturedStructure(from:)`](/documentation/RoomPlan/StructureBuilder/capturedStructure(from:))

Combines the argument captured rooms into a single unit.

### Interpreting build errors

[`BuildError`](/documentation/RoomPlan/StructureBuilder/BuildError)

Errors that can occur during the multiple-scan merging process.


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