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Re: Invert Y axis
Hi Peter,
There is a simple solution for your problem. You can use the
qualifier VLIMITS with the fill or countour command to orient the Y axis
in the increasing or decreasing order of depth. You will get the
details in the ferret manual commands reference section.
use /VLIMITS=y_top value:y_bottom value:increment with fill or
countour command
example: (here y axis is in the reverse way)
set data levitus_climatology
set reg/y=-80:80/x=230
fill temp ! now Y-axis is positive downward
fill /VLIMITS=5000:0:500 temp ! now Y-axis is negative
! downward
in your case you have to give
fill /VLIMITS=0:5000:500 salinity
There is one more way to solve your problem....it is rather a permanent
solution
If you can edit the netcdf file, you can change the attribute for
depth indicating the positive direction of depth as
DEPTH : positive = "down" as positive down.
you can use either ncdump & ncgen or fortran/C programs to do this
Best Regards
Jaison Kurian
set the On Wed, 13 Aug 2003, Peter Haster wrote:
> Dear Ferreters,
> I have a simple problem. My salinity file has a irregular grid in the Z
> axis. The axis is define as: Depth - start at 0 meters to 5000 meters. When
> I make a contour or fill plot of a meridional section the depth axis is
> invert. The top o the axis are 5000 and the bottom are 0 meters. If any one
> have an idea to invert the axis (y) ?
>
> Thanks
> Peter
>
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