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[IDV #QKF-832777]: Change Display Units

Hi Patrick-

> >>>> Full Name: Patrick Brockmann
> >>>> Email Address: address@hidden
> >>>> Organization: CEA / LSCE
> >>>> Package Version: 2.5 build date:2008-05-08 07:05 UTC
> >>>> Operating System: Linux
> >>>> Hardware: Java: home: /opt/IDV_2.5/jre version: 1.5.0_11 j3d:1.3.1

> Here is a link to a netcdf file with the precip variable.
> http://dods.ipsl.jussieu.fr/brocksce/idv/test06/test_precip.nc
> 
> Once I have change units, I need to
> 1) Change Range from All Data
> 2) Change Contours properties manually

But when you change the display unit, do the values that where
there get scaled accordingly?

When I look at this, there is a parameter default defined for
Precip which gets used.  That has a default range of 0 to 50
kg.m-2 with a contour interval of 2.5.  This is beyond the
range of your data.  When I scale them by 1E-4, then
I end up with values well beyond the data range.

You can override this system parameter default by selecting
the Tools->Parameter Defaults Editor.  In the "System defaults"
tab, scroll down to find the ^precip.* field (regular
expression to get all fields that start with precip).
Right click on that row in the table and select
the Copy Row to Users Default menu.  That will pop-up
a dialog which allows you to set new values or ignore
some.  I unchecked the Defined checkbox for Range and Contour
and set the units to kg/(s*m2)*1E-4.  Since the Range and
Contours settings are not predefined, it will calculate these
based on the data.  Alternatively, you can set the values
for these settings according to your data.

Don Murray

Ticket Details
===================
Ticket ID: QKF-832777
Department: Support IDV
Priority: Normal
Status: Open