Welcome to the most active Linux Forum on the web.
Go Back > Blogs > Michael Uplawski
User Name


Boundless Praise about something good

xpath / Nokogiri: Find all nodes in a SVG path.

Posted 06-09-2022 at 02:41 PM by Michael Uplawski
Updated 06-18-2022 at 09:49 AM by Michael Uplawski (Code examples updated, comments are better, too.)

Work in Progress.
EDIT 18.6.2022: Today, I have learned three things:
  • What I want is called a “Bounding Box Calculator”.
  • I hate JavaScript a little more, now
  • My own solution, so far, is crap.

I need all nodes of all paths of a linked graphical object in an SVG file. As I work with handwritten text, those objects are combinations of several paths, sometimes grouped.

The following xpath findes the node definitions from the attribute “d” of the first path...
Senior Member
Views 142 Comments 1 Michael Uplawski is offline

Works – Is Cool – Don't worry: WebP Image format for the Web

Posted 12-05-2021 at 05:31 PM by Michael Uplawski
Updated 02-07-2022 at 11:24 AM by Michael Uplawski (cosmetics & faults)

31/1/2022 Addition: SVG – last paragraphs added

Just when I decided to give up JPEG for storing photos on my hard-disk and upon converting some folders with Nikon raw photos (*.nef) to JPEG2000, I stumble upon a variety of new image formats which all claim to be successors of the old JPEG. But although the “Joint Photographich Expert Group” is behind most of the effort, their work has – for the time being – not met much response in mainstream software. Only JPEG-XL could be...
Senior Member
Views 1393 Comments 0 Michael Uplawski is offline

Email Filter With Procmail: Filter Received-Headers By IP-Range

Posted 07-12-2021 at 03:02 PM by Michael Uplawski
Updated 06-07-2022 at 12:15 AM by Michael Uplawski ( mail addresses exist.)

A styled version of this text in French:
EDIT (27/09/2021): write positive test results to the procmail log-file

I have not found much insight on the Web about the feasibility of an idea that I have had many years ago, but then had forgotten for a while:
Filter email by Received-header, if the IP-address in this header belongs to a specific range of IP-addresses.
Senior Member
Views 753 Comments 0 Michael Uplawski is offline

Handwritten Web-Pages

Posted 02-13-2021 at 05:28 AM by Michael Uplawski
Updated 04-04-2022 at 11:31 PM by Michael Uplawski (Link to a published document)

-----> Edit Sat Mar 12 08:30:02 CET 2022: <-------

In German language: a howto for the transformation of handwritten text to Hypertext in Inkscape.

<------ END EDIT ------>
I have a dream...

My hand-writing suffers from not doing any. For some years already I try to compensate by forcing me to use a fountain pen, whenever possible. I even try to find new occasions to use it. The fountain pen obliges me to concentrate and to...
Senior Member
Views 430 Comments 1 Michael Uplawski is offline

Validate OOXML

Posted 12-11-2020 at 10:27 AM by Michael Uplawski
Updated 12-15-2020 at 12:05 AM by Michael Uplawski (moved one paragraph, cosmetics, threads linked.)

Validate OOXML

Ensure the standard-conformance of OOXML-documents created from scratch.
See also the two Threads concerning this topic: A styled version of this document:
Senior Member
Views 448 Comments 0 Michael Uplawski is offline


All times are GMT -5. The time now is 03:01 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration