Exporting an S-57 product (Maritime Charting)

You can export content in your production database to the S-57 format after you have compiled the data for your new S-57 product or have made changes to the S-57 cell you imported. This can be accomplished using the Export Nautical Product command. The Export Nautical Product command builds and packages an S-57 file based on the geographic data content stored in your production database.

The export package is a versioned ZIP file that is stored and managed by the product library. It can be accessed in the Product Library window using the Manage Files command. The export package cannot be checked out by any user, including administrators. To access the export package, a user must copy the file onto their local machine using the Get Local Copy command. Each package is given an edition and update number based on the export type. Users can access previous versions from this dialog box.

Astuce:

If you want to export a product without creating an export package, check the Sample Export check box. This option allows you to modify the metadata and perform an export that will only get written to the file location you select. For example, you can export a product that has already been exported but that references different units of measurement in the HUNI, DUNI, and/or PUNI DSPM fields.

Defining the export type and attaching files

You can export the standard S-57 New Edition, Update, ReIssue, New Dataset, and Cancel files. In addition to packaging the S-57 file, the Export Nautical Product command allows you to attach files.

Choosing the export type

When numerous modifications or updates have been applied to a product, a hydrographic agency usually issues a New Edition.

An Update contains minor changes to a published product, such as the removal of a buoy symbol or moving a sounding depth from one place to another.

A ReIssue is a regenerated New Edition file that contains updates to a certain point in time. For example, a New Edition cell could have twenty updates applied to it since its creation. Instead of loading all twenty updates into an ECDIS or WECDIS, a ReIssue will be created that is a New Edition file that contains all twenty updates. The ReIssue file preserves the update number so subsequent updates can be applied to it.

The New Dataset option is available only after you use the New Nautical Product wizard to create your product by importing an existing S-57 cell. This option creates a New Edition .000 file but allows you to assign a different edition number to the cell you are going to export.

When an S-57 cell is no longer in use, a Cancel dataset type is generated. The cancel file changes the Edition number back to 0. The Update number increments by 1 and only consists of the DSID meta header information.

Remarque :

After a product is created using the Import Existing Cell option in the New Nautical Product wizard, only the New Dataset and New Edition export options are available.

Etapes :

1. Start ArcMap.
2. If necessary, open the Product Library window by clicking Customize > Production > Product Library on the main menu.

   A tree view of the product library appears.
3. Navigate to and check out the product you want to export with the Open check box checked on the Check Out Product dialog box.
4. Right-click the product and click Export Nautical Product.

   The ENC Export dialog box Export Information area appears.

5. Click the Dataset Record Type drop-down arrow and choose the export type you want based on the descriptions from the S-57 Appendix B Product Specifications IHO document.
   • New Edition—A new edition of a dataset, including new information that has not been previously distributed by updates.
   • Update—Changes some information in a dataset.
   • Reissue—A reissue of a dataset, including all the updates applied to the original dataset up to the date of the reissue. A reissue does not contain any new information that has not been previously issued by updates.
   • New Dataset—A new dataset where no ENC data has previously been produced for this area and for the same navigational purpose (available only for the first export after you use the New Nautical Product wizard to create your product by importing an existing S-57 cell).
   • Cancel—In order to delete a dataset, an update cell file is created, containing only the Data Set General Information record with the Data Set Identifier (DSID) field. The Edition Number (EDTN) subfield must be set to 0.
   Remarque :

   If you want to export an S-57 file without creating an export package, check the Sample Export check box instead of choosing an option from the drop-down menu.

6. Click the ellipsis button (...) in the Export Location area and browse to the location where you want to store your package.
   Astuce:

   If you previously exported from the product library, the output location you chose appears in the Export Location area.

7. Optionally, skip the next section and click Next if you don't want to attach files.

Attaching files

You have the option to attach files to your package, such as a supporting text or image file.

Etapes :

1. Click Add in the Attach Files area.

   The Insert File dialog box appears.

2. Navigate to the location where the files you want to attach are stored.
3. Choose the files you want to add.
   Astuce:

   Use the SHIFT or CTRL keys to select multiple files if necessary.

4. Cliquez sur Ouvrir.
Astuce:

If you previously exported from the product library, the output location you chose appears in the Export Location area.

5. Cliquez sur Suivant.

Adding metadata

You can view and modify your product's metadata values. The metadata is divided into two sections you can modify:

• Product level—Contains the DSID (Dataset Identification) and DSSI (Dataset Structure Information) fields found in an S-57 file. DSID provides information regarding the dataset's source and product description information. DSSI provides information concerning the structure of the dataset.
• Instance level—Contains the DSPM (Data Set Parameters) fields that allow you to define the types of measurement units and data used with the S-57 cell.

There are two nodes in the Metadata Viewer for product- and instance-level metadata. The Product-level metadata contains the DSID and DSSI metadata fields. The Instance-level metadata contains the DSPM metadata fields. The left side of the view shows the metadata fields and the right side shows the values. You can input new values in the fields that are not disabled.

The metadata options are different depending on the task you are performing. For example, if you are exporting a New Edition file, you can set the Vertical Datum; however, if you are exporting an Update file, you cannot change this value.

Product metadata (DSID and DSSI)

You can add a comment, edit the Issue Date for new editions, and edit the Update Application date for DSID. You can edit the ATTF and NATF lexical levels for DSSI.

Etapes :

1. If necessary, click the cell next to Comment and type a comment for the Data Set Identification.
2. If necessary, click the ellipsis button (...) next to Update Application Date and select your product's S-57 update application date.
3. If necessary, click the ellipsis button (...) next to Issue Date and select your product's S-57 issue date.
4. Click the cell next to ATTF lexical level and click the ellipsis button (...) that appears.
5. Specify the appropriate information.

   Lexical levels 0 and 1 are supported per the S-57 IHO Transfer Standard Edition 3.1, part 3, section 2.4.

6. Click the cell next to NATF lexical level and click the ellipsis button (...) that appears.
7. Specify the appropriate information.

   Lexical levels 0, 1, and 2 are supported.

8. Click Next if you are finished updating the metadata information or continue to update the instance metadata.

Instance metadata (DSPM)

You can define the types of measurement units and data used with the S-57 cell.

Etapes :

1. If necessary, click the cell next to Comment and type a comment for the Data Set Structure Information.
2. If necessary, click the cell next to Coordinate Multiplication factor and type the multiplication factor.
3. If necessary, click the cell next to Compilation scale of data and add your S-57 product's compilation scale value.
   Remarque :

   The SCAMIN tool references the compilation scale of data value to autopopulate the SCAMIN attribute field on the applicable feature records.

4. If necessary, click the cell next to the Sounding Datum and choose the appropriate sounding datum.
5. If necessary, click the cell next to the Units of depth measurement to choose the appropriate unit for depth fields.
   Remarque :

   The corresponding DEPTH value of the specified units (that is, DEPTH_M field value for meters) is exported instead of the value in the source field in the geodatabase (that is, DEPTH).

6. If necessary, click the cell next to the Units in height measurement field and choose the appropriate unit for height fields.
   Remarque :

   The corresponding DEPTH value of the specified units (that is, DEPTH_M field value for meters) is exported instead of the value in the source field in the geodatabase (that is, DEPTH).

7. If necessary, click the cell next to the Unit in positional accuracy field and choose the appropriate unit for positional accuracy fields.
   Remarque :

   The corresponding DEPTH value of the specified units (that is, DEPTH_M field value for meters) is exported instead of the value in the source field in the geodatabase (that is, DEPTH).

8. If necessary, click the cell next to the Vertical Datum field and choose the appropriate vertical datum.

Viewing the S-57 export summary

You can review your export type and metadata entries before exporting your package.

Etapes :

1. Scroll through the export summary and verify that your export type, export location, export version, and any attached files are correct.
2. Review the metadata summary.
3. If any errors are found, click Back to go back and make any necessary changes.
4. Once you have reviewed and made any necessary changes, click Finish.

   A progress dialog box appears showing the export process. When the process completes, a path to your export package is listed.

5. Click OK to close the progress dialog box.
   Remarque :

   You can navigate to the location of the export and open the export package. The package is also stored in the product library at the product level. You can view the export package through the file manager.

You have now created an S-57 export package.