Defining and creating regions

Regions can either be defined from single beam echograms (2D regions), cruise track windows (2D regions) or created from multibeam echograms (3D regions). This page covers:

Note: There is no functional difference between defining and creating regions. Historically regions were defined in Echoview and 3D objects were created. The introduction of 3D regions as a 3D object in Echoview has introduced a conflict of terminology. This will be resolved in a future version.

Defining 2D regions

To define a region from a selection:

  1. Make a selection, on an echogram use any selection tool, on a CruiseTrack use a Vertical band tool.

  2. On the Shortcut menu (right-click), click Define region.

  3. Enter required values on the Region Browser dialog box.

  4. Click Close.

Notes:

On echograms, you can also define a region relative to a line or lines. To define a line-relative region:

  1. Make a selection using the Vertical band tool Vertical selection tool or Horizontal band tool horizontal selection tool.
    Note:
    These tools select a band that spans the entire vertical (depth/range) or horizontal (time/distance) dimension of the echogram.

  2. On the Shortcut menu (right-click), click Define Line-Relative Region.

  3. Enter required values on the Define Line-Relative Region dialog box.

  4. Click Define.

Note: A line-relative region is not dynamically linked to a line. If you edit the line(s) relative to which the region was defined you may need to redefine the region.

See Echogram Keyboard shortcuts for shortcuts you can use to define regions.

Creating 3D regions

To create a 3D region you can either:

See also

Region tools
About region type

About region class

Deleting regions

About regions
Joining regions