[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

20000308: Displaying area files

>From: Darren Gallant <address@hidden>
>Organization: UCAR/JOSS
>Keywords: 200003082159.OAA13649


>Our sysadmin just finished installing Mcidas 7.6 on a Lynux
>box. Unfortunately our LDM is not set up to generate any Mcidas products
>but this can be rectified by using another LDM via ADDE.

I am not sure that I follow this.  The LDM conveys data from
point-to-point.  ADDE can do the same, and it can be the conveyance
vehicle used to access data for display/analysis from remote machines
running remote ADDE servers.

>However, I do
>have some satellite imagery in area file format which I would like to
>display. How can I import these files into Mcidas and display them?

This is very easy.  If the McIDAS installation was done completely as
we recommend, then each user will have a dataset called MYDATA defined
for them.  You would determine this by running DSSERVE LIST from a
McIDAS session.  You would end up with a listing part of which looks

Group/Descriptor         Type  Format & Range     RT Comment
------------------------ ----- ------------------ -- --------------------
MYDATA/GRIDS             GRID  GRID 1-9999           All gridded data in GRID 
MYDATA/IMAGES            IMAGE AREA 1-9999           All images in AREA format
MYDATA/RTPTSRC           POINT MD   1-9999           All point source data 
files in MD file format
MYDATA/TOPO              IMAGE AREA 9000-9019        All topographic images in 
AREA format

If you do not get this, then do the following:


If DMAP does not find MYDATA.BAT, then the installation needs
attention.  If you do see this, then all you need are to make the
definitions in MYDATA.BAT active:


and add McIDAS file REDIRECTions that can locate the AREA files.  For
instance, let's assume that the AREA files that you have are located in
a directory called /data/mcidas (the name/location is not important,
the concept is).  You would setup AREA file REDIRECTions like:

REDIRECT ADD AREA* "/data/mcidas

If you already have REDIRECTions for AREA files that are more specific
than this (e.g., AREA71* "/var/data/images, or something similar), then
you will have to be more specific with your REDIRECTion(s).  For
instance, if the AREA files you have and want to look at are named
AREA2000 - AREA2099, then your REDIRECTion would look like:

REDIRECT ADD AREA20* "/data/mcidas

and so on.  To verify that you can find those AREA files, next run:


You should see your files in the list.  If you do, then you can access
the files using the MYDATA/IMAGES dataset name.  For instance, if you
have the AREA file AREA2015, you could look at it with:


>Thanks for any assistance

Please let me know if the above wasn't clear enough.

Tom Yoksas

NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.