Re: map projections

All-
I followed Dennis's advice but without luck.
I got closer by specifying the additional arguements:
mpLambertParallel1F = 30
mpLambertParallel2F = 60
mpLambertMeridianF = 260

AND
tfDoNDCOverlay = true

but the data still doesnt match up with the map background. Now they both
have the same orientation but there is an offset which has eluded me.

Any ideas will be most welcome.
jimmyc

On Fri, 14 Dec 2007, Dennis Shea wrote:

>
> Remove:
> tfDoNDCOverlay = True
>
> Also .... did you unpack the precip data?
> It is of type short?
>
> prc = short2flt( f->precip )
> printVarSummary(prc)
>
>
>
>
> jimmyc_at_iastate.edu wrote:
>> All-
>> I am trying to plot the Unified precipitation dataset from CDC. It is a
>> netcdf file but has no information on the map projection. The data is on a
>> lat lon grid:
>> netcdf precip.1993 {
>> dimensions:
>> lon = 321 ;
>> lat = 161 ;
>> time = UNLIMITED ; // (365 currently)
>> variables:
>> float lat(lat) ;
>> lat:units = "degrees_north" ;
>> lat:long_name = "Latitude" ;
>> lat:actual_range = 20.f, 60.f ;
>> float lon(lon) ;
>> lon:units = "degrees_east" ;
>> lon:long_name = "Longitude" ;
>> lon:actual_range = 220.f, 300.f ;
>> double time(time) ;
>> time:units = "hours since 1700-1-1 00:00:0.0" ;
>> time:long_name = "Time" ;
>> time:actual_range = 2568384., 2577120. ;
>> time:delta_t = "0000-00-01 00:00:00" ;
>> time:avg_period = "0000-00-01 00:00:00" ;
>> short precip(time, lat, lon) ;
>> precip:long_name = "Daily Accumulated Precipitation" ;
>>
>>
>> When I attempt to plot it using the
>> mpProjection = "LambertConformal"
>> mpLimitMode = "Corners"
>> mpLeftCornerLatF = lat(0)
>> mpLeftCornerLonF = lon(0)
>> mpRightCornerLatF = lat(160)
>> mpRightCornerLonF = lon(320)
>>
>> The image that is produced has the map background rotated 90 degrees but the
>> displayed data is in the correct orientation.
>>
>> I do have this:
>> tfDoNDCOverlay = True
>>
>> I have no idea if this is a Lambert grid but other projection types didnt
>> seem to work either.
>>
>> Any ideas?
>>
>
>
>

-- 
James Correia, Jr. PhD.
Email: jimmyc @ iastate.edu
Email: jimmyc42 @ gmail.com
Web: http://bruce.agron.iastate.edu/jimmyc/
*********************************************
"Wisdom. Strength. Courage. Generosity. Each of us are born with one of
these. We must find the other three inside of us."
from "Into the West"
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