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Re: unpacking HRPT in IDL/ENVI [message #6481]

Fri, 28 June 1996 00:00

Liam Gumley
Messages: 473
Registered: November 1994

Senior Member

Paul Tildesley wrote:
[stuff deleted]
> unpacking of the raw bit stream with IDL (we use a C program for that). From
> the little I have used IDL for bit manipulation, I believe it is quite slow
> at that.

I would have to disagree. If you code your bit manipulation algorithm the same
ways as you would in FORTRAN, then it *will* be slow in IDL. But like any other
programming task, you can speed it up by using IDL array processing.
You just have to think in IDL, *not* FORTRAN.

Cheers,
Liam.

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