# OS MasterMap Imagery Layer Downloads

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### Product download

This page provides downloadable files to support the product in use. To download the product, visit the [OS Data Hub](https://osdatahub.os.uk/data).
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## World files ECW

The ECW world file states the X and Y coordinates of the centre of the north-west pixel. This file is available as a downloadable zip archive below.

{% file src="<https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FZ1S9WwlwDqj3GKoLYlik%2Fosim-worldfiles-ecw.zip?alt=media&token=5f323bfd-4e11-47c4-a371-fccadb285f1a>" %}

## World files JPEG

The JPEG world file states the X and Y coordinates of the centre of the north-west pixel. This file is available as a downloadable zip archive below.

{% file src="<https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FrZMvWLzHlU7qDEs6ri0O%2Fosim-worldfiles-jpeg.zip?alt=media&token=27a7cad2-1290-46fc-bb7d-359e5460a00a>" %}

## World files TIFF

The TIFF world file states the X and Y coordinates of the centre of the north-west pixel. This file is available as a downloadable zip archive below.

{% file src="<https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FPwiMlFUizNPlrDZs0toc%2Fosim-worldfiles-tif.zip?alt=media&token=2f814b26-6c55-4ae1-a29a-96666ec96a86>" %}

## OS MasterMap XML schema

The OS MasterMap XML schema is available from the [application schemas page on the Ordnance Survey website](https://www.ordnancesurvey.co.uk/xml/schema/v9/index.html). Previous versions of this schema are available to download from the website, the most recent version is included below:

### OS MasterMap XML schema, version 9

* [OSAerialMetadata.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSAerialMetadata.xsd)
* [OSComplexTypes.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSComplexTypes.xsd)
* [OSDNFFeatures.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSDNFFeatures.xsd)
* [OSGeometryTopology.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSGeometryTopology.xsd)
* [OSImageMetadata.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSImageMetadata.xsd)
* [OSMeasures.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSMeasures.xsd)
* [OSOrthoMetadata.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSOrthoMetadata.xsd)
* [OSQueryResult.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSQueryResult.xsd)
* [OSSimpleTypes.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSSimpleTypes.xsd)
* [OSIMIngestionMetadata.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSIMIngestionMetadata.xsd)
* [OSIMProductMetadata.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSIMProductMetadata.xsd)
* [OSIMSupplierMetadata.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/OSIMSupplierMetadata.xsd)

### OpenGIS Consortium schemas

* [feature.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/feature.xsd)
* [geometry.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/geometry.xsd)
* [gml.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/gml.xsd)
* [GML 2.1.2 implementation specification](http://www.opengeospatial.org/docs/02-069.pdf)

### W3C schemas

* [xml.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/xml.xsd)
* [xlink.xsd](https://www.ordnancesurvey.co.uk/xml/schema/v9/xlink.xsd)

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The XML File Repository License, covering the terms and conditions for the use of all Ordnance Survey XML schemas, is made available through the [Terms and Conditions page](https://docs.os.uk/os-downloads/resources/site-resources/terms-and-conditions) in the Resources section.
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