Virtual variables pages

Several context-sensitive pages in the Variable Properties dialog box are displayed for virtual variables. The pages that are displayed depend on the operator that was used to create the virtual variable.

Operands page

The Operands page is displayed on the Variable Properties dialog box when any virtual variable is selected.

Settings

Description

Operator

The operator that is being applied to create the virtual variable.

Operand(s)

The virtual or raw variable(s) that are being operated on to create the selected virtual variable. Select a specific operand using the Operand list.

When available click Add New Operand to add an operand or click Remove Last Operand to remove an operand.

The large text box contains a description of the selected operator.

A description of the behavior of each operator can be found in the Operators section.

The operand(s) for a virtual variable can be changed, but the operator cannot be changed.

Virtual Variables pages

The following virtual variable pages may be present (depending upon the operator used):

Arithmetic operators

Constant divide page
Constant multiply page
Formula page

Bitmap operators

Data Range bitmap page
Line bitmap page
Mask page
Region bitmap page
Roll range page
Target samples bitmap page

Conversion operators

Type conversion page

Convolution operators

3x3 Convolution page
5x5 Convolution page
7x7 Convolution page
XxY Convolution page

Data manipulation operators

Background noise removal page
Cell statistic page
Deadzone estimation page
Generator page
Match ping times page
Motion correction page
Ping subset page
Ping time shift page
Region statistic page
Resample page
Threshold page
Towed body page

Imaging operators

3 Color maximum page
GLCM texture page

Movement operators

Distance correction page
GPS filter page
Scan position page
Smoothing page

Multibeam operators

Angle select page
Beam scan page
Beam select page
Beam subset page
Bottom echo bitmap page
Bottom echo bitmap H-mode - Furuno page
Double threshold page
FIR filter page
IIR filter page
Mean of N previous pings page
Median of N pings page
Minimum of N ping page
Multibeam target detection page
Sample statistic subtract page
Target page
Target conversion page

Single target detection operators

Single target detection page
Filter Single Targets page

Single target manipulation operators

Single target length page
ST Union page
ST Difference page
ST Intersection page
Filter Single Targets page

See also

About virtual variables
Operators

Variable Properties dialog box