Re: [Gnuplot-info] Gnuplot doesnot give output if file exist

[gnuuser4165 <s4...@ya...>]

Thanks for reply.
As you said It might appending same file .
I will certainy try your solution but.....

I have restarted program few times.
File size , date & time doesn't change after these restarts.
thse wrote
> gnuuser4165 
> <s416504 <at>
>  yahoo.com> writes:
> 
>> 
>> set term png 
>> set output MainPlot.png 
>> plot "ABC.dat" 
>> plot "XYZ.dat" 
>> Set output 
>> set term pop 
>> 
>> I see this generate plot MainPlot.png using ABC.dat but does not
>> overwrite
>> by XYZ.dat.
>> 
>> I have loop where I wanted to overwrite output on same file. 
>> 
>> can Anyone help on this? 
> 
> if you would have a look into the file "MainPlot.png" with
> a binary editor or viewer you would see that there are two
> png-images written into this file one after the other.
> 
> because the png-format is a single image format (no animation)
> an image display program stops after the first image (it reads
> the "IEND" chunk), neglecting the second image.
> 
> if you want to overwrite the image, you have to close
> ("set output") and reopen the output file.
> 
> 
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