[Gdal-dev] Re: [MI-L] constructing a .tab file for an ecw file

[nicholas.g.lawrence at mainroads.qld.gov.au]

> > Nick Lawrence

> > I am writing a mapbasic program that, amongst other things, would
> > construct
> > a .tab file for an ecw image file.
> >
> > Is there any way, using mapbasic, to interrogate an ecw file to extract
> > such information as datum/projection and bounding co-ordinates?


> "Tony Pilkington"

> This may help. As you can see it is very rough and ready code.

Thanks, it does seem to work.

I would like to clarify the ByteOrder clauses. The first time
the file is read the byteorder is HIGHLOW, the next time it
is LOWHIGH.

(in the code you sent me, the second byteorder statement is
commented out, but I've tested it explictly both ways).

Now, I always thought that a file had to be of one byteorder
all the way through. Am I wrong? Is it possible for byteorder
to change within a file?

Regards,
Nick Lawrence


***********************************************************************
WARNING: This e-mail (including any attachments) may contain legally
privileged, confidential or private information and may be protected by
copyright. You may only use it if you are the person(s) it was intended
to be sent to and if you use it in an authorised way.  No one is 
allowed to use, review, alter, transmit, disclose, distribute, print 
or copy this e-mail without appropriate authority.

If this e-mail was not intended for you and was sent to you by mistake,
please telephone or e-mail me immediately, destroy any hardcopies of
this e-mail and delete it and any copies of it from your computer
system. Any right which the sender may have under copyright law, and 
any legal privilege and confidentiality attached to this e-mail is not 
waived or destroyed by that mistake.

It is your responsibility to ensure that this e-mail does not contain
and is not affected by computer viruses, defects or interference by
third parties or replication problems (including incompatibility with
your computer system).

Opinions contained in this e-mail do not necessarily reflect the
opinions of the Queensland Department of Main Roads, Queensland
Transport or Maritime Safety Queensland, or endorsed organisations
utilising the same infrastructure.
***********************************************************************