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Re: [TeXmacs] Reproduce "raw-data" sequence number from an image


Chronological Thread 
  • From: Massimiliano Gubinelli <address@hidden>
  • To: Michele Cirillo <address@hidden>
  • Cc: address@hidden
  • Subject: Re: [TeXmacs] Reproduce "raw-data" sequence number from an image
  • Date: Tue, 27 Mar 2018 09:37:36 +0200

I just mention for completeness that you are not obliged to embed the images like that, you can simply instruct TeXmacs to link at the external png files. It would work fine to produce PDF for example.

Best
mg


On 27. Mar 2018, at 02:59, Michele Cirillo <address@hidden> wrote:

I solved with the command "xxd -p /path/to/image.png"

Thank you!
Michele

2018-03-26 20:08 GMT+02:00 Michele Cirillo <address@hidden>:
Hi everybody!

I noticed that if I open a .tm file with gedit, nano, ecc., the generic image
is represented by a text line like:

<image|<tuple|<#89504E470D0A1A0A0000000D49484452000000..............>|png>|
25px|25px||>

namely:
(a) there is a prefix "#89504E470D0A1A0A0000000D49484452000000"
(b) and the a number sequence ".............." that depends on the image.

I need to reproduce a such text line automatically from the image file!

My difficulty is to get the number "#89504.............." from the .png file.

The command "hexdump /path/to/image.png" does not reproduce the same number
sequence.

How have I convert the binary .png file in the exact way?

Thank you!
Michele





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