ArcGIS Pro

The following instructions are based on ArcGIS Pro version 2.8.1 and assume that you have access to and knowledge of the UK Data Loader and the Data Interoperability Extension to convert the supplied GML into a suitable ArcGIS Pro format.

Loading and displaying the GML supply using UK Data Loader

The UK Data Loader is an ArcGIS toolbox. It contains a set of tools that primarily allow loading of Ordnance Survey data into an ArcGIS workspace.

If the UK Data Loader is not already installed, we recommend you add the folder containing the toolbox into your documents. More information on installing the UK Data Loader is available in ESRI’s UK Data Loader User Guide. This guide also provides instructions for processing Change Only Updates (COU) for OSMM Topography Layer.

Using the UK Data Loader involves two steps: Converting the GML supply and loading the converted file geodatabase into ArcGIS Pro.

Converting the GML supply to file geodatabase

To load the GML data into ArcGIS Pro using the UK Data Loader:

1. Open an existing project or create a new one.

You may want to select a basemap for backdrop context.

1. From the View tab, select Catalog View.

1. In the Catalog view, navigate to the location in which your UK Data Loader toolbox is saved.

You may need to connect to the relevant folder using the Add Folder option in the Insert tab.

1. Open the toolbox, navigate to OS MasterMap Topography Layer > Load OSMM Topography Data, right- click on the script, and click Open in the context menu.

1. This will open the Geoprocessing panel in which you can set the parameters for running the script:

   • Source Data Folder: Navigate to and select the GML file(s) required.

   • Existing Destination Workspace: Navigate to and select the pre-existing file geodatabase (.gdb) folder to load the data into.

   • Logging File Folder: Navigate to and select a folder into which to save the log that will be created during data processing. This is important because any error messages will be captured here. These may help identify issues.

   • Feature Class / Table Prefix: Enter a prefix for your tables (for example, Topo_).

   • Create Annotation Line Features: Check this option if it is available and required. This checkbox option is only available in older versions of ArcGIS Pro/UK Data Loader.

1. Click (Run button) at the bottom of the panel to process the data.

This may take some time, depending on the number of 5km OSMM Topography Layer tiles being processed.

On completion, the OSMM Topography Layer data will be saved to the destination file geodatabase, which can then be loaded into the workspace by following the instructions in the next section.

Loading and displaying data from the file geodatabase

Having converted your GML data to file geodatabase using the UK Data Loader (or other tools listed in this guide), you can now load the OSMM Topography Layer GDB into your ArcGIS Pro workspace.

To load and display the file geodatabase in an ArcGIS Pro workspace:

1. Open an existing project or create a new one.

You may want to select a basemap for backdrop context.

1. From the Map tab, select Add Data.

1. In the Add Data dialog, navigate to and select the file geodatabase (.gdb) containing the OSMM Topography Layer data, and then click OK.

1. In the selected file geodatabase (.gdb) select the feature classes that you want to load and then click OK.

You can select multiple feature classes at once to save repeating these steps for all the OSMM Topographic Layer features.

Your OSMM Topography Layer feature classes will now appear in both the Contents panel and map area.

You may need to reorder the layers to see the data correctly. You can reorder layers using drag and drop. We recommend the following layer order: CartographicText, CartographicSymbol, TopographicPoint, BoundaryLine, TopographicLine and TopographicArea.

Loading and displaying shapefiles

As an alternative to using the UK Data Loader, you can load OSMM Topography Layer shapefiles directly into your ArcGIS Pro workspace. You need to first convert your GML data to shapefile.

Translation tools available in FME and QGIS to convert the GML data to shapefiles.

To load and display shapefiles in an ArcGIS Pro workspace:

1. Open an existing project or create a new one.

You may want to select a basemap for backdrop context.

1. From the Map tab, select Add Data.

1. In the Add Data window, navigate to and select the shapefiles (.shp) containing the OSMM Topography Layer data, and then click OK.

You can select multiple shapefiles at once to save repeating these steps for all the OSMM Topographic Layer features.

Your OSMM Topography Layer shapefiles will now display in both the Contents panel and map area.

You may need to reorder the layers to see the data correctly. You can reorder layers using drag and drop. We recommend the following layer order: CartographicText, CartographicSymbol, TopographicPoint, BoundaryLine, TopographicLine and TopographicArea.