comp.lang.idl-pvwave archive: archive » ASSOC and structures

Home » Public Forums » archive » ASSOC and structures - structure size problem

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: ASSOC and structures - structure size problem [message #8898 is a reply to message #8807]

Tue, 29 April 1997 00:00

Joseph M Zawodny
Messages: 24
Registered: March 1996

Junior Member

Steve Phillips wrote:
>
> I'm trying to use ASSOC to link a structure with a large file.
>
> The structure consists of lonarr(48) followed by intarr(14423). This pattern
> being repeated 16036 times in the file.
>
> I ASSOC the structure with the file (including 16252 byte offset for a file
> header)
>
> The structure size should be 29038 bytes , but HELP,/STRUCT gives it as 29040.
>
> I would accept the 2 byte difference as a structure ID or something. But the
> data values I'm getting are all wrong - suggesting that ASSOC is not mapping
> the structure onto the file correctly, or it's using the wrong structure size
> ?
>
> Can anyone explain this anomaly.

Chances are that the problem is related to the odd number of 2-byte
integers in the second vector of your structure. Make a test file
with an even number (like 14424) of elements and I bet it will work.

Sorry, I do not have a fix for this though.

Good Luck.

JMZ

Report message to a moderator

[Message index]

		ASSOC and structures - structure size problem By: sdpp on Mon, 28 April 1997 00:00
		Re: ASSOC and structures - structure size problem By: thompson on Fri, 02 May 1997 00:00
		Re: ASSOC and structures - structure size problem By: Joseph M Zawodny on Tue, 29 April 1997 00:00

Previous Topic:	Windows selection in PV-Wave
Next Topic:	Re: PRINTING IN IDL4.0

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Nov 30 07:14:27 PST 2025

Total time taken to generate the page: 0.39855 seconds