comp.lang.idl-pvwave archive: archive » Re: extracting bits from bytes

Home » Public Forums » archive » Re: extracting bits from bytes

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

Re: extracting bits from bytes [message #1527]

Tue, 30 November 1993 14:16

ryba
Messages: 33
Registered: October 1992

Member

|> mask = bytarr(8)
|> for i=0,7 do mask(i)=2^i

Getting closer....try

tmp = lindgen(32) ; For Bill's routine handling up to 4 bytes
mask = 2L^tmp
out = (in and mask) ne 0

For arrays of inputs, you can use rebin:
ninbytes = n_elements(in)
tmp = rebin(lindgen(32),32,ninbytes)

etc....

--
Dr. Marty Ryba | Generation X:
MIT Lincoln Laboratory | Too young to be cynical,
ryba@ll.mit.edu | too old to be optimistic.
Of course nothing I say here is official policy, and Laboratory affiliation is
for identification purposes only, blah, blah, blah....

Report message to a moderator

[Message index]

		Re: extracting bits from bytes By: ryba on Tue, 30 November 1993 14:16
		Re: extracting bits from bytes By: chase on Tue, 30 November 1993 10:16
		Re: extracting bits from bytes By: thompson on Mon, 29 November 1993 18:54

Previous Topic:	Colorado Demo PV-Wave
Next Topic:	IDL3.5.0: contour is still broken :-((((

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Oct 12 07:16:11 PDT 2025

Total time taken to generate the page: 1.04346 seconds