Command

Button

Description

Set manually

Type the coordinates in the Spatial Extent fields using one of the following formats:

• Degrees-Minutes-Seconds with N, S, E, and W. For example, 25-35-03W.

• Degrees-Minutes using decimal minutes with N and W. For example, 25-35.25W.

• Decimal Degrees with a minus sign (-) for west or south. For example, -25.35.

Use current cover

Use the current extent of the Display window. Make sure that the Display window shows only the area required for the product.

Digitize boundary

Digitize a box to represent the extent. A cross hair cursor is displayed. Press and hold the mouse button and drag across the area where you want to create the product.

Select correct longitude extents

[Create New Product From Dataset or Create New Product from Multiple Datasets commands only]

The S-57 standard does not allow products that straddle or cross the 180° meridian. If data crosses the meridian in any of the input datasets, this button is displayed.

1. Click to open the Longitude Extent dialog box.

If the coordinate reference system of the input dataset includes a central meridian definition, this version of the dialog box is displayed:

If the coordinate reference system of the input dataset does not include a central meridian definition, this version of the dialog box is displayed:

2. Select the appropriate option:

• Eastern part of source data: Clip the data so that the 180° longitude line is the eastern extent of the product area. Data on the other side of the 180° line is excluded from the product.

• Western part of source data: Clip the data so that the 180° longitude line is the western extent of the product area. Data on the other side of the 180° line is excluded from the product.

• All source data: Create a product cover that extends around the Earth from 180° W to 180° E.

3. Click OK.

• You are returned to the main wizard dialog box.