Re: [ferret_users] Wrong time axes, and strange interaction with viewports

To: ferret_users@xxxxxxxx

Subject: Re: [ferret_users] Wrong time axes, and strange interaction with viewports

From: "Ansley C. Manke" <ansley.b.manke@xxxxxxxx>

Date: Wed, 20 Dec 2017 15:59:34 -0800

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Hello Olivier,

Thank you for the example.

Ferret is deciding which time-axis style to use, based both on the length of time requested and on the actual length of the axis on the page. Then, for each style of time axis labeling, it makes the axis with an integer number of the time increments on the page, so the axis labeled with days makes a plot in 1-day increments. It seems that the SHADE plots are drawing in 1-day increments even on the time-axis plots which have finer divisions within one day.

Both of these behaviors seem to me to be bugs. Ferret should draw the same time-axis style for a given time range, regardless of the length of the axis line on the page; and it should be filling in the shade plots back to the start of the time axis. We will look into all of this.

Ansley

On 12/20/2017 2:17 AM, Olivier Marti wrote:

Hi everybody

The following has been tested on Ferret 7.1 on Mac OSX 10.12, Ferret 6.9.3 on RedHat 2.6.32 and PyFerret 7.1 on RedHat 2.6.32

Several questions :

- Why PLOT and SHADE do not show the same time axes ?

- Why is there a empty part on the right of the PLOT ?

- Why is there a empty part on the left on the SHADE ?

- Why the SHADE is cropped on the right part ?

- Why this behavior is depending on the viewport definition ?

But the real question is : can I find a workaround to have matching time axes between SHADE and PLOT ?

Thank you for any kind of help !

Olivier

USE "https://vesg.ipsl.upmc.fr/thredds/dodsC/work_thredds/p86mart/FERRET_DEBUG/PL01_1ts_thetao_point.nc"

CANCEL WINDOW/ALL

SET WINDOW 1

DEFINE VIEWPORT/X=0.0,0.5/Y=0.5,1.0 v1

DEFINE VIEWPORT/X=0.0,0.5/Y=0.0,0.5 v2

SET VIEW v1 ; PLOT/K=1:20/LINE thetao[K=1], thetao[K=@MIN], thetao[K=@MAX]

SET VIEW v2 ; SHADE/K=1:20 thetao

SET WINDOW 2

DEFINE VIEWPORT/X=0.0,1.0/Y=0.5,1.0 v1

DEFINE VIEWPORT/X=0.0,1.0/Y=0.0,0.5 v2

SET VIEW v1 ; PLOT/K=1:20/LINE thetao[K=1], thetao[K=@MIN], thetao[K=@MAX]

SET VIEW v2 ; SHADE/K=1:20 thetao

--

Dr. Olivier Marti - mailto:olivier.marti@xxxxxxxxxxxx

Laboratoire des Sciences du Climat et de l'Environnement

Institut Pierre Simon Laplace

Laboratoire CEA-CNRS-UVSQ - UMR 8212

Tel : +33 1 69 08 77 27 - Mob : +33 6 45 36 43 74

Fax : +33 1 69 08 30 73

<http://www.lsce.ipsl.fr/Pisp/olivier.marti>