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Saving file after editting [message #94357]

Tue, 18 April 2017 11:39

alghafisuct
Messages: 20
Registered: November 2014

Junior Member

Hi All

I have .dat file which is binary format unsigned integer 32. The file is 5000 by 5359 and I use the following to read the file in IDL as a complex numbers

array_HH = make_array(5000, 5359, /dcomplex, /nozero)

filename_HH = ('C:\Users\asus\Desktop\IDL_PROJECTS\20151021115853_11_SAR_C PLX_0_pres_8.dat')

OPENR, importUnit, filename_HH, /GET_LUN

READU, importUnit, array_HH

CLOSE, importUnit

FREE_LUN, importUnit

Absloute_Value_HH = ABS(array_HH)

Image_HH = Absloute_Value_HH^(0.7/2)

My question is I want to save the file after editing as .dat file with the same format and saving it in the same file not a new file. How can that be done so once I open it again, I open it the same way

Regards

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Re: Saving file after editting [message #94359 is a reply to message #94357]

Wed, 19 April 2017 06:05

Matthew Argall
Messages: 286
Registered: October 2011

Senior Member

If you open the file with OpenW instead of OpenR, it will erase the old file and open it for writing. See the documentation for writing in binary format.

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