Overlay Types - Miscellaneous

Internal Dataset

Use this option to create a new internal dataset.

Internal datasets are user datasets are stored within the SWD; they do not exist as separate files and cannot be used in other SWDs or accessed by other users. They are often used for data of a temporary or personal nature.

Note: Click here for the full description of the Internal Dataset option.

Copy Overlay

This provides a copy of an existing overlay.

Click here for the full description of the Copy Overlay option.

Backdrop

This provides a raster outline of the UK, Ireland and the world in different projections. Backdrops are used for reference and are often useful as the initial overlay in a SIS Workspace Definition (SWD).

Note: Click here for the full description of the Backdrop option.

Digital Chart of the World

Use place-name gazetteer, and load coverage from Digital Chart of the World in (Undefined variable: Primary.ProdVersion) as a read-only dataset.

Digital Chart of the World was a series of CDs produced by the USA Defence Mapping Agency.

Note: Click here for the full description of the Digital Chart of the World option.

Exchangeable Image File Format (EXIF)

Indexes any EXtensible Image Format (EXIF) files in a folder.

Note: Click here for the full description of the Exchangeable Image File Format (EXIF) option.

Geospatial Data Abstraction Library (GDAL)

Loads data via the Geospatial Data Abstraction Library (GDAL).

GDAL is a translator library for raster geospatial data formats that is released under an Open Source licence. As a library, it presents a single abstract data model to the calling application for all supported formats.

Note: Click here for the full description of the Geospatial Data Abstraction Library (GDAL) option.

NGA Digital Nautical Chart (DNC)

Loads Digital Nautical Chart (DNC) data.

The Digital Nautical Chart® is produced by the National Geospatial-Intelligence Agency (NGA) and is an unclassified, vector-based, digital database containing maritime significant features essential for safe marine navigation.

Note: Click here for the full description of the NGA Digital Nautical Chart (DNC) option.

NGA Vector Map Level 0/1

Loads Vector Map (VMAP) Level 0 or Level 1 data.

The VMap Level 0 database provides worldwide coverage of vector-based geospatial data which can be viewed at 1:1,000,000 scale.

Note: Click here for the full description of the NGA Vector Map Level 0/1 option.

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