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Reading ASCII [message #4706]

Fri, 21 July 1995 00:00

dean
Messages: 55
Registered: March 1993

Member

I am attempting to read a ASCII text file with topography data.
This file was created on a DOS machine and has a CR and NL character
after each line. In my attempts to read this file, I keep getting
the CR and NL characters which messes up my image. Is there a
way to read this file without picking up the CR and NL with IDL?

Below is the sample PRO I am working with. The ASCII file
is located on castor.cira.colostate.edu in Dean.

Kelly Dean
CSU/CIRA

============================================================ ====

PRO READ_TOP
imgname = 'elev.txt'
xsize = 961
ysize = 601

openr, unit, imgname, /get_lun
status = FStat(unit)
HELP, status, /STRUCT
image = INTarr(xsize, ysize)
scan = INTarr(xsize)
FOR j = 0, ysize-1 DO BEGIN
readU, unit, scan
image(0,(ysize-1)-j) = scan
ENDFOR
close, unit
free_lun, unit
nmax = MAX(image)
nmin = MIN(image)
print, ' MAX ',nmax,' Min ',nmin
WINDOW, 0, xsize=xsize,ysize=ysize,title='Elevation'
TVscl, image

end

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[Message index]

		Reading ASCII By: dean on Fri, 21 July 1995 00:00
		Re: Reading ASCII By: dean on Thu, 27 July 1995 00:00
		Re: Reading ASCII By: gennari on Sun, 23 July 1995 00:00
		Re: Reading ASCII By: Mark Hadfield on Sun, 23 July 1995 00:00

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