Re: Fine scale time plot labeling

[Ansley Manke <ansley@xxxxxxxxxxxxx>]

Hi Ned,
Actually there is not an hour,minute option for formatting the time axes in Ferret's
PPLUS txtype command.  You might use CANCEL MODE CALENDAR,
after defining the axis as you did, or define from the start a purely numerical time
axis.

DEFINE AXIS/t=0:600:0.25/units=secs  tax1

Ansley Manke

"E.D. (Ned) Cokelet" wrote:

> Can anyone tell me why the following script does not produce a plot with 1 hour
> as the major time axis interval and 10 minutes as the minor one?
> *********************************************************************************
>
> ! Define an axis and grid
>
> define
> axis/t="23-aug-2001:20:30:00":"23-aug-2001:20:40:00":`1/4`/units=sec/t0="23-aug-2001:20:30:00"
> tax1
>
> define grid/t=tax1 tgrd1
>
> ! Invent a variable and plot it
>
> let tm1 = t[gt=tgrd1]
> let v1 = 4*tm1
>
> plot v1
>
> ! Plot looks OK, but let's zoom in on the time axis
>
> pause
>
> ! Plot on an axis with hour/minutes as major/minor time interval
>
> plot/set v1
> ppl txtype,hr,min
> ppl txlint,10,1
>
> ppl plot
>
> ******************************************************************
> --
> Edward D. (Ned) Cokelet, Ph.D.      cokelet@pmel.noaa.gov
> NOAA/PMEL                                   ph: (206) 526-6820
> 7600 Sand Point Way NE                   fax: (206) 526-6485
> Seattle, WA 98115-6439

--
Ansley Manke  Pacific Marine Environmental Laboratory  Seattle WA  (206)526-6246