Line Range Bitmap

This operator creates a bitmap using the ping geometry of operand 1. Every data point in each output ping will be true if the range (from operand 2) at the time of that ping was within the limits specified, and false otherwise.

See also: The Effect of No data samples on the Wideband Frequency Response graph page.

Echoview accepts a single operand of the following data types as input:

Operand 1

Operand 2

  • Angular position
  • Boolean
  • Color
  • Complex angular position
  • Complex power dB
  • Complex Sv
  • Complex TS
  • Current velocity
  • Linear

  • Multibeam angular position
  • Multibeam boolean
  • Multibeam color
  • Multibeam magnitude
  • Multibeam phase
  • Multibeam SV
  • Multibeam TS
  • Multibeam unspecified dB
  • Power dB
  • Pulse compressed complex angular position
  • Pulse compressed complex power dB
  • Pulse compressed complex Sv
  • Pulse compressed complex TS
  • SV
  • TS
  • Unspecified dB
  • Line


The Line Range Bitmap Variable Properties dialog box pages include (common) Variable Properties pages and these operator pages:

Operands page

Line Range Bitmap page



Minimum in-range depth (meters)

Specify the minimum and maximum depth for the bitmap.

Data values in the operand variable for which the line is in the specified range (inclusive) are given a value of 'true', and otherwise 'false'. If a line is in the specified range, the ping is included. If the line is not in the specified range, the ping is excluded.

Maximum in-range depth (meters)

See also

About virtual variables
Operator licensing in Echoview