Generating depth areas

Depth areas are S-57 objects used to depict depth ranges between contours in Electronic Navigation Charts (ENC). The Generate Depth Areas (Selected Feature) tool is used to create these depth areas. It updates depth areas that exist, creates depth areas as needed, and deletes areas that are no longer relevant based on a given extent and compilation scale. Boundaries of the extent are defined by selecting a polygon feature.

注：

Depth contours, closing lines, and group 1 features must exist prior to using the Generate Depth Area (Selected Feature) tool.

1. 启动 ArcMap。
2. 如有必要，可在地图中加载数据。

The following layers are required:

• SoundingP
• DepthsL
• PortsAndServicesA
• NaturalFeaturesA
• DepthsA

ClosingLinesL is optional and can be used to close boundaries.

提示：

When editing the NIS database, consider setting definition queries on the layers in the table of contents to match the scale band you want to edit.

3. On the main menu, click Customize > Toolbars > Nautical.
4. Type the compilation scale in the Compilation Scale text box and press Enter.

   You cannot use 0 (zero), negative values, or nonnumeric characters.

5. 在主菜单上，单击自定义 > 工具条 > 生产编辑。
6. 单击生产编辑工具条上的启动生产编辑按钮 。

   注：

   使用启动生产编辑工具开始编辑会话时，系统将自动显示管理要素和创建属性、更新属性或元数据属性窗口。

   提示：

   如果开始编辑会话时未显示创建属性、更新属性或元数据属性窗口，请单击管理要素窗口上的显示/隐藏属性按钮 。

7. If necessary, select the workspace you want to edit and click OK.
8. Click the Select Features button on the Tools toolbar.
9. Select the polygon you want to define as the extent you want to edit.

   For example, select the boundary of a hydrographic survey or create a new polygon.

   注：

   It is recommended that when defining the extent, you do not go outside the area that contains data. If you go beyond the area containing data, the tool may interpret the depth contours as open. The extent of the area of interest contributes to the forming of closed areas so depth information is available to attribute the depth area (DEPARE_DepthArea) feature output.

10. On the Nautical toolbar, click Nautical > Generate Depth Areas (Selected Feature).

    The Generate Depth Areas dialog box appears and is prepopulated with values from your data.

11. Accept the default value or type a value that is the highest contour in the Shallowest Depth Band or Drying Height text box.
12. Accept the default value or type a value that is the deepest contour in the Deepest Depth Band text box.
13. Leave the Merge Depth Areas check box checked if you want to merge the newly created depth areas with those that preexisted.

    For this to occur, the values for DRVAL1 and DRVAL2 attributes must match.

14. 单击确定。

New depth areas are created and existing depth areas are updated or deleted as needed.

注：

Log files are written to <Installation location>\Users\<UserLogin>\AppData\Roaming\ESRI\Production<version>\Desktop\Maritime Charting\LogFiles\<Name of Process>.