Surface Properties dialog box

The Surface Properties dialog box is used to change the properties of virtual surfaces.

To display the Surface Properties dialog box:

On the Dataflow window, select a virtual surface object.
On the Shortcut menu select Surface Properties.

Note: A Shortcut menu is also available of virtual surfaces displayed in the Objects List.

The following pages can appear on the Surface Properties dialog box:

Operands
Fixed Depth
Fixed Range
Linear Offset
Visibility
Name and Notes

Operands page

The Operands page displays the Operator, its description and input operands.

Fixed Depth page

The Fixed Depth page is where the Depth (m) is specified.

Fixed Range page

The Fixed Range page is where the Range (m) is specified.

Linear Offset page

The Linear Offset operator displays a Linear Offset page that specifies an Offset distance (m) from an existing surface (Operand 1) to create a new virtual surface. The Offset is applied in the range space or depth space of the Operand.

Note: The linear offset of a surface-ping intersection is not displayed on H-mode echograms and is not used when used as an exclusion surface during multibeam school detection or 3D region analysis.

Visibility page

The Visibility page of the Surface Properties dialog box is used to select (or clear) the visibility of the surface for an acoustic variable. The settings on the Surfaces page of the Variable Properties dialog box, for an acoustic variable, can change surface visibility as well.

Name and Notes page

The Name and Notes page of the Surface Properties dialog box is used to change the Name of a surface, display the Surface type and add Notes.

Virtual surfaces display these name settings:

Setting	Description
Name	Default assigned name or enter text to specify a name. See also: Supported characters for names.
Dynamic name	Select Dynamic to use a name that updates when a virtual surface property updates. Virtual surfaces have a default Dynamic name - indicated by text with a property name inside braces. The Properties Information window displays supported Command interface property names. Suitable property names are those that have numeric or text value. A Dynamic name may be specified through the Console with the Properties option DynamicName. When Dynamic is selected, the Name property becomes read-only under the Command interface and the dataflow object. Example: A Fixed depth surface has a default Dynamic name of Fixed depth surface [{Depth} m] that is displayed on the object in Figure 1 - the Depth value is 0.0 m. When the value for Depth changes, the Dynamic name updates automatically. Figure 1. Notes: Refer to Console Property option DynamicName.
Reset	Use Reset to reassign a default Name.