[ferret_users] Lat/long to openDAP indices conversion

To: ferret_users@xxxxxxxx
Subject: [ferret_users] Lat/long to openDAP indices conversion
From: Tiho.Beretovac@xxxxxxxx
Date: Thu, 22 Jul 2010 12:19:25 +0800
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Thread-topic: Lat/long to openDAP indices conversion

Hi there, 

New to ferret, but have tried for a while and have been unable to find an answer to this question:

How does ferret convert the lat long bounding box constraints it uses into indices of individual OpenDAP requests when it fetches the data from an OpenDAP source.

For instance, if you point ferret to an OpenDAP source and ask for a FILL\x=130e:140e (ie. lat long based request), this is translated into an OpenDAP fetch with something like ?mydata[0][32:85][0:499] (ie. the indices that represent the data within the eastings and northings specified in the ferret request). 

Are the specifics of this conversion explained anywhere?
Any insight appreciated.

Cheers,

Tiho

Follow-Ups:
- Re: [ferret_users] Lat/long to openDAP indices conversion
  - From: Ansley Manke

References:
- [ferret_users] fill nearest ??
  - From: Brockmann Patrick
- [ferret_users] Re: fill nearest ??
  - From: Brockmann Patrick

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