Defining a Calculated Signal (Bitmask)

In the Define Calculated Signals dialog box, you have activated the Bit field.

To define a calculated signal:

  1. To make a bitmask, select a signal:

    Opens the Variable Selection dialog box in which you select a measured signal for the definition of the calculated signal.

    Opens the Available Calculated Signals dialog box in which you select an already calculated signal as input value for the definition of the newly calculated signal.

  2. Define whether the calculated signal applies to a single bit or to several bits:

    Defines that precisely one calculated signal is defined for each selected bit of the selected signal.

    Defines that a single calculated signal of one or more bits of the selected signal is defined.

  3. Enter a name for the calculated signal or change the preset name. For single-bit signals, this name is augmented during generation by the index of the selected bit as a two-digit number.
  4. Optionally, you can enter a brief description of the calculated signal.
  5. Select the required bits. The number of bits depends on the selected signal, but it does not exceed 32 bits.

  6. Define a calculation rate:

    Specifies the duration of the calculation period.

    Specifies the signal used as calculation rate.

    1. Select All from the list to use a calculation rate that results from the combination of all rasters of all input signals.

      or

    2. From the list, select the entry for the input signal whose calculation rate you want to use.

  7. Click Check to check the syntax of the formula.

    The newly defined calculated signal is checked and, if the check is successful, it is accepted. If the formula contains any errors, the check result is displayed.

  8. Click OK.

See also

Define Calculated Signals - User Interface

Analyzing a Calculated Signal Graphically