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Re: Is there any way to change the dimension of a field in a structure? [message #58148]

Tue, 22 January 2008 06:45

Hongkai
Messages: 6
Registered: September 2006

Junior Member

Thanks, David and Maarten! Really nice solutions! While i was waiting
for your answers, I wrote a dirtier code to solve this problem using
the EXECUTE function :)

;Modify a single tag in a structure when we need to change the data
type or dimension of this tag
pro Structure_Modify, Structure, TagName, newValue

NAMES = TAG_NAMES(Structure)

cmdline = 'S1={'

for i_tag = 0,N_TAGS(Structure)-1,1 do begin

if strcmp( STRUPCASE(TagName), NAMES(i_tag) ) ne 1 then begin
cmdline = cmdline + NAMES(i_tag) + ': Structure.
('+strtrim(string(i_tag),2)+')'
endif else begin
cmdline = cmdline + NAMES(i_tag) + ': newValue'
endelse

if i_tag lt N_TAGS(Structure)-1 then begin
cmdline = cmdline + ', '
endif else begin
cmdline = cmdline + ' }'
endelse

endfor

result = EXECUTE(cmdline);

Structure = S1

end

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[Message index]

		Re: Is there any way to change the dimension of a field in a structure? By: Hongkai on Tue, 22 January 2008 06:45
		Re: Is there any way to change the dimension of a field in a structure? By: Maarten[1] on Tue, 22 January 2008 05:47

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