Re: [ferret_users] multi-stereographic plots

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hi Manfredi,
I have several suggestions.  The main one is to issue the SET VIEWPORT 
command just before starting the plotting commands. It turns out that 
when your run the the mp_aspect.jnl script, it issues a SET 
WINDOW/ASPECT= command, and this turns off the viewport setting that you 
made.  This is something I had not been aware of, and it only seems to 
happen with /ASPECT and not other SET WINDOW options. We'll have to see 
if this is a bug, or what. Try this sequence to see this:

  set viewport ul
  show viewport   ! shows "current viewport is UL"
  set window/asp=2
  show viewport   ! shows "current viewport is NONE"

Also, I notice that you are using a SHAKEY command to move the shade 
key.  This is a PPLUS setting, and so it only takes effect after a 
FILL/SET (or shade/set) command.

Last, the comments at the start of the "go margins" script suggest that 
it should be called after any calls to set the viewport.  You might want 
to experiment with the placement of the call to this script, or decide 
whether you want to call it at all.

Note that you could do the contour lines over the fill plot with a 
single command FILL/LINE  if you wish.

So, your script should work if you do things in this order (removing the 
/LEVELS and /PALETTE qualifiers from your example commands just for 
easier reading)

 go mp_stereographic_north.jnl

 set grid DALBEDO
 go mp_aspect
 set region/x=0:360/y=65:90

 set viewport ul
 fill /set /noaxis /nolabels DALBEDO[l=@ave], x_page, y_page
 ppl shaset,1,0
 ppl fill

 contour /over /noaxis /nolabels DALBEDO[l=@ave], x_page, y_page

 go mp_fland 120 gray
 go mp_graticule 0 360 30 65 90 10

 set viewport ur
(same commands as above)





Manfredi Manizza wrote:

> Dear Ferreters,
>
> I would like to
> have a multiple plot with stereographic
> plots of the polar oceans.
>
> I am testing a simple case here using Ferret predefined
> viewports (ul, ur, ll, lr) and repeting the same plot.
>
> With these commands below it plots the first figure as upper left
> and then it should plot the same in the upper right subwindow.
>
> What it does in practice is opening a window, plotting the first figure
> and then cancelling the same and plots the same figure in the same
> window but as before it takes the whole window.
>
> According to that it does not work as planned.
>
> Is there a way to fix it or it is basically impossible
> to have multiple stereographic plots with Ferret ?
>
> Thanks in advance for your help.
>
> Manfredi.
>
>
>
>
>
> set viewport ul
>
> go mp_stereographic_north.jnl
>
> go margins .2, .6, .2, .2
>
> set grid DALBEDO
>
> go mp_aspect
>
> set region/x=0:360/y=65:90
>
> ppl shakey 1,0,
> fill  /noaxis /nolabels  /pal=light_centered
> /lev=(-10,10,1)(-20)(20)(-30)(30)(-40)(40)(-50)(50)(-60)(60)
> DALBEDO[l=@ave]*100, x_page, y_page
> contour /over   /noaxis /nolabels  /pal=light_centered
> /lev=(-10,10,0.5)(-20)(20)(-30)(30)(-40)(40)(-50)(50)(-60)(60)
> DALBEDO[l=@ave], x_page, y_page
> go mp_fland 120 gray
>
> go mp_graticule 0 360 30 65 90 10
>
> set viewport ur
>
>
>
>
> Manfredi Manizza
> PhD Student
> School of Environmental Sciences
> University of East Anglia
> NR4 7TJ, Norwich
> United Kingdom
> Telephone : +44-(0)1603-591315
> FAX       : +44-(0)1603-591327
> Email     : m.manizza@uea.ac.uk
>
>