rsl_plotrhi

This procedure plots an RHI radar image.

Note: rsl_plotsweep_from_radar handles RHI as well as PPI, so there is no need to call this procedure directly.

Syntax

rsl_plotrhi, radar [, field] [, FIELD=string] [, MAXRANGE=value] [, MAXHEIGHT=value] [, /NEW_WINDOW] [, SWEEP_INDEX=value] [, VOLUME_INDEX=value] [, TITLE=string] [, WINDOWSIZE=value] [, LIKE_FIELD=string] [, ABOUT_FIELD=string] [, CHARSIZE=value] [, /BGWHITE]

Arguments

radar A radar structure.
field String specifying the radar data field to be plotted, for example, 'DZ'. If omitted, the first stored field is used.

Keywords

FIELD Same as field argument. This keyword is provided for consistency with other routines.
ABOUT_FIELD Information about the field which will appear in TITLE. This replaces the default field information, which is simply the field type, such as 'DZ' or 'VR'.
LIKE_FIELD Names a field type whose color table and value scaling is to be used to plot this data. This keyword is necessary only if the field type for this sweep is not one of the commonly used fields, namely DZ, CZ, ZT, VR, SW, DR, ZD, KD, PH, and RH.
MAXRANGE Maximum range to be plotted, in kilometers. Default is 250.
MAXHEIGHT Maximum height to be plotted, in kilometers. Default is 15.
NEW_WINDOW If set, a new window is created for plot.
SWEEP_INDEX Index of RHI sweep to be plotted, where zero is first RHI in volume.
TITLE Title to appear above plot. Default is the site name followed by date and time data was recorded, followed by "RHI", the field type, and the azimuth in degrees.
VOLUME_INDEX The index number of volume (0 to nvols-1) to select. Default is 0. If FIELD has a value, VOLUME_INDEX is ignored.
WINDOWSIZE Window size in pixels. WINDOWSIZE may be scalar or a 2 element array. If scalar, this value is used for the x and y lengths. If an array, the first element is the x length, the second the y length. If not given, IDL sets the window size.
CHARSIZE IDL graphics keyword used to set the character size for axes titles and annotations. Normal size is 1.0, which is the default.
BGWHITE Set this for white background. Default is black.

Example 1

Plot the DZ field of an RHI scan.

rsl_plotrhi, radar, 'dz'

Example 2

Plot the second RHI sweep for DZ field.

rsl_plotrhi, radar, 'dz', sweep_index=1