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Alternative to EXECUTE? [message #37191]

Tue, 02 December 2003 06:40

anne.martel
Messages: 6
Registered: April 2002

Junior Member

I've just realised that the IDL Virtual Machine won't work with
EXECUTE. Does anyone have an alternative for the sort of use described
below?

I'm using EXECUTE to initialise an object with a set of fields defined
by the structure info. The number of fields defined in info will vary
depending on the type of image I'm reading in so I only want to set a
subset of the fields. I could explicitity test for each tag name but
that makes it harder to add new fields later and I would end up with a
very long CASE statement.

pro QmcImage::set_info,info
tmp_class = {QmcImage}
object_fields = Tag_Names(tmp_class)
info_fields = Tag_Names(info)
num=n_elements(info_fields)
for i = 0,num-1 do begin
index = where(strcmp( info_fields[i], object_fields,/F),count)
if(count eq 1) then begin
str='self.' + info_fields[i] + '= info.' + info_fields[i]
ok = execute(str)
endif
endfor
end

Thanks,

Anne Martel
Imaging Research,
Sunnybrook and Women's CHSC

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[Message index]

		Alternative to EXECUTE? By: anne.martel on Tue, 02 December 2003 06:40
		Re: alternative to execute By: marc schellens[1] on Wed, 01 February 2006 00:09
		Re: alternative to execute By: Ken Mankoff on Tue, 31 January 2006 18:22
		Re: alternative to execute By: greg michael on Wed, 01 February 2006 03:04
		Re: alternative to execute By: Robert Barnett on Tue, 31 January 2006 14:02
		Re: alternative to execute By: greg michael on Wed, 01 February 2006 03:01

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