rsl_get_sweep

This function returns a structure containing the requested sweep. The base scan (lowest elevation) is returned by default.

Syntax

sweep = rsl_get_sweep(volume [, elevation] [, SWEEP_NUMBER=sweepnumber] [, SWEEP_INDEX=sweepindex])

Inputs

volume A volume structure.
elevation Optional argument to select the sweep by elevation angle (in degrees). The sweep closest to this elevation is returned.

Keyword parameters

SWEEP_INDEX Select the sweep by index number, where 0 is the base scan. If the elevation argument and SWEEP_INDEX are both given, elevation is used.
SWEEP_NUMBER Sweep number, where 1 is the base scan. If the elevation argument and SWEEP_NUMBER are both given, elevation is used.

Example 1

Get the base scan sweep.
    volume = rsl_get_volume(radar)
    sweep = rsl_get_sweep(volume)

Example 2

Get the sweep closest to elevation 1.5 degrees. 
    sweep = rsl_get_sweep(volume, 1.5)

Example 3

To get the sweep at the second tilt, use either of the following: 
    sweep = rsl_get_sweep(volume, sweep_num=2)
or
    sweep = rsl_get_sweep(volume, sweep_index=1)