Ismael Olea — web personal

«Producir y nutrir,
producir y no poseer,
obrar y no retener,
acrecentar y no regir,
son el misterio de la vida.»

Lao Tse hablando de procomunes en el siglo VI ac.

2018 / 11 / 14
Degree final work about ISO/IEC 29110

I want a lot to write more in this blog. There are matters I didn’t talk enough about SuperSEC or GUADEC conferences, some announce for 2019 and some some activities in Wikipedia (specially in the Wikiproyecto-Almería and my firsts step in the amazing world of SPARQL), less important but I really enjoy.

But now I want to keep record of significant advances in the university degree I’m finishing these months. I decided to finish a pending course with special interest in the required degree final work, to work in things I’ve been interested since 2003 but never had the oportunity to focus in deep enough to study, learn and write some useful, I hope, tools. And it’s being fun :-)

So now I can say the project blueprint has been approved by the university. It’s named «Creation of artifacts for adoption of ISO/IEC 29110 standards» (document in Spanish, sorry) and the goals are to produce a set of opensource artifacts for the adoption of the 29110 family of standards focused on a light software engineering methodology suitable to be adopted by very small entities (VSEs). At the moment my main target is to work in the «Part 5-4: Agile software development guidelines», currently on development by WG24, using the EPF Composer tool.

As a working tool I’m making a (half backed and maybe temporal) website to keep record of related materials at http://29110.olea.org.

Hope to announce related news in the next weeks.
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2018 / 11 / 2
Running EPF Composer in Fedora Linux, v3
Well, finally I succeed with native instalation of the EPF (Eclipse Process Framework) Composer in my Linux system thanks to Bruce MacIsaac and the development team help. I’m happy. This is not trivial since EPFC is a 32 bits application running in a modern 64 bits Linux system.

My working configuration:
- Fedora F28, x86_64
- java-1.8.0-oracle-1.8.0.181, 32 bits, from the non-free Russian Fedora repository:
  - java-1.8.0-oracle-1.8.0.181-3.fc28.i586.rpm
  - java-1.8.0-oracle-headless-1.8.0.181-3.fc28.i586.rpm
- EPF Composer Linux/GTK 1.5.2
- GTK+ v.2 integration dependencies:
  - adwaita-gtk2-theme-3.28-1.fc28.i686.rpm
  - libcanberra-gtk2-0.30-16.fc28.i686.rpm
- xulrunner 32 bits xulrunner-10.0.2.en-US.linux-i686.tar.bz2
In my system obviously I can install all rpm packages using DNF. For different distros look for the equivalent packages.

Maybe I’m missing some minor dependency, I didn’t checked in a clean instalation.

Download EPFC and xulrunner and extract each one in the path of your choice. I’m using xulrunner-10.0.2.en-US.linux-i686/ as directory name to be more meaninful.

The contents of epf.ini file:
```
-data
@user.home/EPF/workspace.152
-vmargs
-Xms64m
-Xmx512m
-Dorg.eclipse.swt.browser.XULRunnerPath=/PATHTOXULRUNNER/xulrunner-10.0.2.en-US.linux-i686/
```
I had to write the full system path for the -Dorg.eclipse.swt.browser.XULRunnerPath property to get Eclipse recognize it.

And to run EPF Composer:
```
cd $EPF_APP_DIR
$ epf -vm  /usr/lib/jvm/java-1.8.0-oracle-1.8.0.181/jre/bin/java  
```
If you want some non trivial work with Composer in Linux you’ll need xulrunner since it’s used extensively for editing contents.

I had success running the Windows EPF version using Wine and I can do some work with it, but at some point the program gets inestable and needs to reboot. Other very interesting advantage of running native is I can use the GTK+ filechooser which is really lot better than the simpler native Java one.

I plan to practice a lot modeling with EPF Composer in the coming weeks. Hopefully I’ll share some new artifacts authored by me.
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2018 / 10 / 19

How to cite bibliography ISO/IEC standards

For my final post-grade work I’m collecting bibliography and as the main work is around ISO/IEC documents I investigated how to to make a correct bibliography entry for these, which I realized is not very well known as you can check in this question in Tex.StackSchange.com.

I finally chose an style I show here as an example:

BibTeX:

@techreport{iso_central_secretary_systems_2016,
  address = {Geneva, CH},
  type = {Standard},
  title = {Systems and software engineering -- {Lifecycle} profiles for {Very} {Small} {Entities} ({VSEs}) -- {Part} 1: {Overview}},
  shorttitle = {{ISO}/{IEC} {TR} 29110-1:2016},
  url = {https://www.iso.org/standard/62711.html},
  language = {en},
  number = {ISO/IEC TR 29110-1:2016},
  institution = {International Organization for Standardization},
  author = {{ISO Central Secretary}},
  year = {2016}
}

RIS:

  TY  - RPRT
  TI  - Systems and software engineering -- Lifecycle profiles for Very Small Entities (VSEs) -- Part 1: Overview
  AU  - ISO Central Secretary
  T2  - ISO/IEC 29110
  CY  - Geneva, CH
  PY  - 2016
  LA  - en
  M3  - Standard
  PB  - International Organization for Standardization
  SN  - ISO/IEC TR 29110-1:2016
  ST  - ISO/IEC TR 29110-1:2016
  UR  - https://www.iso.org/standard/62711.html
  ER  - 

I’ve using this style extensively in a development website http://29110.olea.org/. You can compare details with the official info.

Both have been generated using Zotero.

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2018 / 10 / 8
Banksy Shredder

PD: After some reports about male nudity this post has been edited to remove the portrait of my back. If you have reservations with male nudity PLEASE DON'T FOLLOW THE LINK.

PPD: If you don't have problems with male nudity for your convenience here you'll find the Wiki Commons category «Nude men» of pictures.
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2018 / 10 / 8
«Software Quality Assurance, First Edition» PDF file

For your convenience I’ve compiled in just one file the book Software Quality Assurance by Claude Y. Laporte and Alain April. The book is provided for free download at the publisher website as separated files. Download the full book.

About the book: «This book introduces Software Quality Assurance (SQA) and provides an overview of standards used to implement SQA. It defines ways to assess the effectiveness of how one approaches software quality across key industry sectors such as telecommunications, transport, defense, and aerospace.»

It is licensed as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Claude Y. Laporte is the editor of the ISO/IEC 29110 standard of software engineering for very small entities (VSE).

PD: Added licencing details.
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2018 / 10 / 5

GUADEC 2018 by numbers

GUADEC 2018 badge

It took me a while but now I can gave you some stats from GUADEC 2018, following past year Sam’s example.

They are very rough but I hope informative.

Attendees: 207 (and about 215 registered), two less than 2017.
9 days: 2 days boards meetings, 3 for conferences and 4 for BoFs and workshops.
44 talks and videos.
35 BoFs and workshops.
3 great parties, including the flamenco show by «la Chinelita and group».
About economics just to say it was very successful. Thanks a lot to our sponsors and donnors. And special kudos to the sponsoring team for such impresive job.
The medium age was 32.7, from the 143 persons who provided their age. Minimum age was 15 and maxium 61.
The Spanish attendants were 43, 20.8% of the total. Significative presence from the UK with 20%.
The maximum of persons per day hosted at Civitas residence where 75. I would have expected a bigger number but some factors affected: GUADEC dates were in high season with a particular peak because some local events (at some point there were not a single room available in Almería city), other was a coincidence with a university summer course and finally many people tried to book at Civitas very late.

The attendees who filled they country of residence, by country:

country	number
Argentina	1
Australia	1
Austria	2
Belgium	1
Brazil	2
Canada	3
China	3
Czech Republic	10
Denmark	2
Finland	1
France	9
Germany	11
Greece	1
India	2
Israel	1
Italy	3
Japan	1
Latvia	1
Netherlands	2
New Zealand	1
Norway	2
Romania	3
Russian Federation	2
Spain	43
Sri Lanka	1
Sweden	2
Switzerland	1
United Kingdom	41
United States	25
Unspecified	18

The GUADEC occupancy at Civitas were:

date	number
02/07/2018	1
03/07/2018	7
04/07/2018	21
05/07/2018	66
06/07/2018	70
07/07/2018	71
08/07/2018	75
09/07/2018	70
10/07/2018	63
11/07/2018	40
12/07/2018	5
13/07/2018	1

Thanks Benjamin Berg for helping to collect the data.

Thank you all for visiting us in Almería. Don’t forget to come back :-)

PD: post edited at 2018/11/15 adding details of residence occupancy.

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2018 / 10 / 3

Wacom's graphic tablet sizes (2)

In a previous entry I put the data I’ve collected about Wacom digitizer tablets. Collecting the data took to me more time I really wished. But now I’m happy to publish an exhaustive list thanks to Carlos Garnacho:

model	active area size mm	active area size in
Wacom ISDv4 E2	356 ✕ 203 mm	14 ✕ 8 in
Wacom Intuos BT M	254 ✕ 203 mm	10 ✕ 8 in
Wacom ISDv4 104	229 ✕ 127 mm	9 ✕ 5 in
Wacom Intuos BT S	203 ✕ 152 mm	8 ✕ 6 in
Wacom Intuos M	254 ✕ 203 mm	10 ✕ 8 in
Wacom Intuos S	203 ✕ 152 mm	8 ✕ 6 in
Wacom ISDv4 5110	305 ✕ 178 mm	12 ✕ 7 in
Wacom Bamboo Pen medium	152 ✕ 102 mm	6 ✕ 4 in
Wacom Bamboo Fun medium (2+FG)	229 ✕ 127 mm	9 ✕ 5 in
Wacom DTU-2231	483 ✕ 279 mm	19 ✕ 11 in
Wacom Bamboo Pen small	152 ✕ 102 mm	6 ✕ 4 in
Wacom Cintiq 21UX2	432 ✕ 330 mm	17 ✕ 13 in
Wacom Graphire Wireless	203 ✕ 152 mm	8 ✕ 6 in
ELAN 2537	356 ✕ 203 mm	14 ✕ 8 in
Wacom ISDv4 5002	279 ✕ 152 mm	11 ✕ 6 in
Wacom ISDv4 5000	279 ✕ 152 mm	11 ✕ 6 in
Wacom ISDv4 485e	254 ✕ 178 mm	10 ✕ 7 in
Wacom Bamboo (2+FG)	127 ✕ 76 mm	5 ✕ 3 in
Wacom DTH1152	229 ✕ 127 mm	9 ✕ 5 in
Wacom Bamboo Fun small (2+FG)	152 ✕ 102 mm	6 ✕ 4 in
Wacom Bamboo Pen & Touch (2+FG)	152 ✕ 102 mm	6 ✕ 4 in
Wacom Cintiq 22HD touch	483 ✕ 279 mm	19 ✕ 11 in
Wacom DTI520UB/L	356 ✕ 305 mm	14 ✕ 12 in
Wacom Bamboo Fun medium (2FG)	229 ✕ 127 mm	9 ✕ 5 in
Wacom Bamboo Fun small (2FG)	152 ✕ 102 mm	6 ✕ 4 in
Wacom Bamboo (2FG)	152 ✕ 102 mm	6 ✕ 4 in
Wacom Bamboo Touch (2FG)	127 ✕ 76 mm	5 ✕ 3 in
Huion H610 Pro	254 ✕ 152 mm	10 ✕ 6 in
Bamboo One	127 ✕ 102 mm	5 ✕ 4 in
Wacom Bamboo Pen	152 ✕ 102 mm	6 ✕ 4 in
Wacom Intuos BT M	254 ✕ 203 mm	10 ✕ 8 in
Wacom ISDv4 12C	279 ✕ 152 mm	11 ✕ 6 in
Wacom Intuos BT S	203 ✕ 152 mm	8 ✕ 6 in
Wacom Intuos4 WL	203 ✕ 127 mm	8 ✕ 5 in
Wacom Intuos4 12x19	483 ✕ 305 mm	19 ✕ 12 in
Wacom Intuos4 8x13	330 ✕ 203 mm	13 ✕ 8 in
Wacom ISDv4 5146	305 ✕ 178 mm	12 ✕ 7 in
Wacom Cintiq Pro 13	305 ✕ 178 mm	12 ✕ 7 in
Wacom MobileStudio Pro 16	356 ✕ 203 mm	14 ✕ 8 in
Wacom MobileStudio Pro 13	305 ✕ 178 mm	12 ✕ 7 in
Wacom ISDv4 484c	254 ✕ 178 mm	10 ✕ 7 in
Wacom DTU-1931	381 ✕ 305 mm	15 ✕ 12 in
Wacom Cintiq 12WX	254 ✕ 178 mm	10 ✕ 7 in
Wacom Cintiq 20WSX	432 ✕ 279 mm	17 ✕ 11 in
Wacom Cintiq 21UX	432 ✕ 330 mm	17 ✕ 13 in
Wacom ISDv4 4004	279 ✕ 152 mm	11 ✕ 6 in
Wacom Cintiq Pro 16	356 ✕ 203 mm	14 ✕ 8 in
Wacom DTF-720	330 ✕ 279 mm	13 ✕ 11 in
Wacom Intuos Pro 2 L	305 ✕ 203 mm	12 ✕ 8 in
Wacom Intuos Pro 2 M	229 ✕ 152 mm	9 ✕ 6 in
Wacom DTH2242	483 ✕ 279 mm	19 ✕ 11 in
Wacom ISDv4 5099	254 ✕ 178 mm	10 ✕ 7 in
Wacom DTK2241	483 ✕ 279 mm	19 ✕ 11 in
Wacom Cintiq Pro 32	686 ✕ 381 mm	27 ✕ 15 in
Wacom Cintiq Pro 24 PT	508 ✕ 305 mm	20 ✕ 12 in
Wacom Intuos3 12x19	483 ✕ 305 mm	19 ✕ 12 in
Wacom Intuos4 6x9	229 ✕ 152 mm	9 ✕ 6 in
Wacom Intuos4 4x6	152 ✕ 102 mm	6 ✕ 4 in
Wacom Intuos Pro 2 L WL	305 ✕ 203 mm	12 ✕ 8 in
Wacom Intuos Pro 2 M WL	229 ✕ 152 mm	9 ✕ 6 in
Wacom Intuos3 4x6	152 ✕ 102 mm	6 ✕ 4 in
Wacom Intuos3 6x8	203 ✕ 152 mm	8 ✕ 6 in
Intuos Pen & Touch Medium	229 ✕ 127 mm	9 ✕ 5 in
Wacom ISDv4 5013	305 ✕ 178 mm	12 ✕ 7 in
Wacom ISDv4 5014	254 ✕ 152 mm	10 ✕ 6 in
Wacom Intuos4 WL	203 ✕ 127 mm	8 ✕ 5 in
Intuos Pen Medium	229 ✕ 127 mm	9 ✕ 5 in
Intuos Pen & Touch Small	152 ✕ 102 mm	6 ✕ 4 in
Intuos Pen Small	152 ✕ 102 mm	6 ✕ 4 in
Wacom ISDv4 50f8	356 ✕ 203 mm	14 ✕ 8 in
Huion H610 Pro	254 ✕ 152 mm	10 ✕ 6 in
Wacom ISDv4 504a	305 ✕ 178 mm	12 ✕ 7 in
Wacom Intuos3 6x11	279 ✕ 152 mm	11 ✕ 6 in
Wacom Intuos3 12x12	305 ✕ 305 mm	12 ✕ 12 in
Wacom Intuos3 9x12	305 ✕ 229 mm	12 ✕ 9 in
XP-Pen Star 03	254 ✕ 152 mm	10 ✕ 6 in
Wacom ISDv4 50f1	305 ✕ 178 mm	12 ✕ 7 in
Wacom Intuos3 4x5	127 ✕ 102 mm	5 ✕ 4 in
Wacom DTK1651	356 ✕ 203 mm	14 ✕ 8 in
Wacom ISDv4 10D	279 ✕ 152 mm	11 ✕ 6 in
Wacom ISDv4 10F	279 ✕ 152 mm	11 ✕ 6 in
Wacom ISDv4 10E	279 ✕ 152 mm	11 ✕ 6 in
Wacom Intuos2 12x18	457 ✕ 305 mm	18 ✕ 12 in
Wacom Intuos2 12x12	305 ✕ 305 mm	12 ✕ 12 in
Wacom Intuos2 9x12	305 ✕ 229 mm	12 ✕ 9 in
Wacom Intuos2 6x8	203 ✕ 152 mm	8 ✕ 6 in
Wacom Intuos2 4x5	127 ✕ 102 mm	5 ✕ 4 in
Wacom DTU1031X	229 ✕ 127 mm	9 ✕ 5 in
Wacom Cintiq 27QHD	610 ✕ 305 mm	24 ✕ 12 in
Wacom ISDv4 503E	305 ✕ 178 mm	12 ✕ 7 in
Wacom ISDv4 117	279 ✕ 152 mm	11 ✕ 6 in
Wacom ISDv4 116	203 ✕ 152 mm	8 ✕ 6 in
Wacom ISDv4 503F	305 ✕ 178 mm	12 ✕ 7 in
Wacom ISDv4 50b8	305 ✕ 178 mm	12 ✕ 7 in
Wacom Cintiq 27QHD touch	610 ✕ 305 mm	24 ✕ 12 in
Wacom ISDv4 50b6	305 ✕ 178 mm	12 ✕ 7 in
Wacom ISDv4 50b4	305 ✕ 178 mm	12 ✕ 7 in
Wacom Intuos5 M	229 ✕ 152 mm	9 ✕ 6 in
Wacom DTU1141	229 ✕ 127 mm	9 ✕ 5 in
Wacom ISDv4 5048	254 ✕ 152 mm	10 ✕ 6 in
Wacom Cintiq 13HD touch	305 ✕ 178 mm	12 ✕ 7 in
Wacom ISDv4 5044	254 ✕ 152 mm	10 ✕ 6 in
Wacom ISDv4 4831	305 ✕ 178 mm	12 ✕ 7 in
Wacom ISDv4 5040	305 ✕ 178 mm	12 ✕ 7 in
Huion H610 Pro	254 ✕ 152 mm	10 ✕ 6 in
Dell Canvas 27	584 ✕ 330 mm	23 ✕ 13 in
Wacom Cintiq Companion 2	305 ✕ 178 mm	12 ✕ 7 in
Wacom Cintiq 22HD	483 ✕ 279 mm	19 ✕ 11 in
Wacom ISDv4 101	279 ✕ 152 mm	11 ✕ 6 in
Wacom ISDv4 100	279 ✕ 152 mm	11 ✕ 6 in
Wacom ISDv4 481a	305 ✕ 178 mm	12 ✕ 7 in
Wacom ISDv4 93	254 ✕ 152 mm	10 ✕ 6 in
Wacom DTU1031	229 ✕ 127 mm	9 ✕ 5 in
Wacom Intuos5 touch L	330 ✕ 203 mm	13 ✕ 8 in
N-Trig Pen	254 ✕ 152 mm	10 ✕ 6 in
Wacom ISDv4 509D	305 ✕ 178 mm	12 ✕ 7 in
Wacom Intuos5 S	152 ✕ 102 mm	6 ✕ 4 in
Wacom Intuos5 touch S	152 ✕ 102 mm	6 ✕ 4 in
Wacom Intuos5 touch M	229 ✕ 152 mm	9 ✕ 6 in
Intuos Pen Medium	229 ✕ 127 mm	9 ✕ 5 in
Wacom ISDv4 4824	102 ✕ 178 mm	4 ✕ 7 in
Wacom Intuos 12x18	457 ✕ 305 mm	18 ✕ 12 in
Wacom ISDv4 4822	279 ✕ 152 mm	11 ✕ 6 in
Wacom Intuos 12x12	305 ✕ 305 mm	12 ✕ 12 in
Wacom Intuos 9x12	305 ✕ 229 mm	12 ✕ 9 in
Wacom Intuos 6x8	203 ✕ 152 mm	8 ✕ 6 in
Wacom Intuos 4x5	127 ✕ 102 mm	5 ✕ 4 in
Wacom ISDv4 90	305 ✕ 203 mm	12 ✕ 8 in
Wacom Cintiq 24HD touch	533 ✕ 330 mm	21 ✕ 13 in
Intuos Pen Small	152 ✕ 102 mm	6 ✕ 4 in
Wacom Bamboo Pad	102 ✕ 76 mm	4 ✕ 3 in
Wacom ISDv4 124	229 ✕ 127 mm	9 ✕ 5 in
Wacom Cintiq Companion	305 ✕ 178 mm	12 ✕ 7 in
Wacom Bamboo Pad Wireless	102 ✕ 76 mm	4 ✕ 3 in
Wacom DTH2452	508 ✕ 305 mm	20 ✕ 12 in
Wacom Cintiq Pro 24 P	508 ✕ 305 mm	20 ✕ 12 in
Wacom ISDv4 93	254 ✕ 152 mm	10 ✕ 6 in
Wacom Graphire	127 ✕ 102 mm	5 ✕ 4 in
Wacom ISDv4 90	305 ✕ 203 mm	12 ✕ 8 in
Wacom Intuos Pro L	330 ✕ 203 mm	13 ✕ 8 in
Wacom Intuos Pro M	229 ✕ 152 mm	9 ✕ 6 in
Wacom Intuos Pro S	152 ✕ 102 mm	6 ✕ 4 in
Wacom Graphire2 4x5	127 ✕ 102 mm	5 ✕ 4 in
Wacom ISDv4 4814	254 ✕ 178 mm	10 ✕ 7 in
Wacom Graphire4 4x5	127 ✕ 102 mm	5 ✕ 4 in
Wacom Graphire3 6x8	203 ✕ 152 mm	8 ✕ 6 in
Wacom Graphire3 4x5	127 ✕ 102 mm	5 ✕ 4 in
Wacom Graphire2 5x7	178 ✕ 127 mm	7 ✕ 5 in
One by Wacom (medium)	229 ✕ 127 mm	9 ✕ 5 in
One by Wacom (small)	152 ✕ 102 mm	6 ✕ 4 in
Wacom Cintiq 24HD	533 ✕ 330 mm	21 ✕ 13 in
Wacom DTU-1631	356 ✕ 203 mm	14 ✕ 8 in
Wacom Bamboo Special Edition Pen & Touch medium	229 ✕ 127 mm	9 ✕ 5 in
Wacom Bamboo Create	152 ✕ 102 mm	6 ✕ 4 in
Wacom ISDv4 114	229 ✕ 127 mm	9 ✕ 5 in
Wacom DTK2451	508 ✕ 305 mm	20 ✕ 12 in
Wacom Bamboo Capture	152 ✕ 102 mm	6 ✕ 4 in
Wacom Bamboo Connect	152 ✕ 102 mm	6 ✕ 4 in
Wacom Bamboo 16FG 4x5	152 ✕ 102 mm	6 ✕ 4 in
Wacom ISDv4 5090	279 ✕ 152 mm	11 ✕ 6 in
Wacom Bamboo Special Edition Pen & Touch small	152 ✕ 102 mm	6 ✕ 4 in
Wacom Cintiq Companion Hybrid	305 ✕ 178 mm	12 ✕ 7 in
Wacom ISDv4 4809	102 ✕ 178 mm	4 ✕ 7 in
XP-Pen Star 03	254 ✕ 152 mm	10 ✕ 6 in
Huion H610 Pro	254 ✕ 152 mm	10 ✕ 6 in
Wacom Cintiq 13HD	305 ✕ 178 mm	12 ✕ 7 in
Intuos Pen & Touch Medium	229 ✕ 127 mm	9 ✕ 5 in
Intuos Pen & Touch Small	152 ✕ 102 mm	6 ✕ 4 in
One by Wacom (medium)	229 ✕ 127 mm	9 ✕ 5 in
One by Wacom (small)	152 ✕ 102 mm	6 ✕ 4 in
Wacom ISDv4 5010	279 ✕ 152 mm	11 ✕ 6 in
Wacom ISDv4 E6	279 ✕ 152 mm	11 ✕ 6 in
Wacom ISDv4 E5	279 ✕ 152 mm	11 ✕ 6 in

As a reference these are the standards DIN sizes comparable with those models:

DIN type	size
A4	210 x 297 mm
A5	148 x 210 mm
A6	105 x 148 mm

The source of this data is directly from the Wacom driver and is extracted with this C program Carlos provided:

/* Build with:
 *   gcc -o wacomfoo `pkg-config --libs --cflags libwacom` wacomfoo.c
 */
 
#define IN_TO_MM 25.4
 
#include <libwacom/libwacom.h>
 
int
main (int argc, char *argv[])
{
  const WacomDeviceDatabase *db;
  WacomDevice **devices;
  int i;
 
  db = libwacom_database_new ();
  devices = libwacom_list_devices_from_database (db, NULL);
  printf ("| model | active area size mm | active area size in | \n");
  printf ("|:--------- |:--------- |:--------- | \n");

  for (i = 0; devices[i] != NULL; i++)
    {
      if (libwacom_get_width (devices[i]) == 0)
        continue;
      printf ("| %s | %.f ✕ %.f mm | %.f ✕ %.f in | \n",
              libwacom_get_name (devices[i]),
              (double) libwacom_get_width (devices[i]) * IN_TO_MM,
              (double) libwacom_get_height (devices[i]) * IN_TO_MM,
              (double) libwacom_get_width (devices[i]),
              (double) libwacom_get_height (devices[i]));
    }
  return 0;
}

PD: Fixed the correct value for milimeters per inch.

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2018 / 09 / 24

Wacom's graphic tablet sizes

For some reasons I’ve been looking for second hand Wacom graphic tablets. To me has been annoying to find out which size is for each model. So I’m writing here the list of the models I gathered.

The reason for looking only for Wacoms is because these days seem to be very well supported in Linux, at least the old models you can get second hand.

model	active area size
CTL460	147,2 x 92,0 mm
CTL 420	127.6 x 92.8 mm
CTE-430 Graphire 3	127 x 101 mm
CTF-430	127.6 x 92.8 mm
CTL 460	147,2 x 92,0 mm
CTH-460	147,2 x 92,0 mm
CTH-461	147,2 x 92,0 mm
CTH-470	147,2 x 92,0 mm
CTL-470	147,2 x 92,0 mm
CTL-480 Intuos	152 x 95 mm
CTE-640	208.8 x 150.8 mm
CTE-650	216.5 x 135.3 mm
CTH-661	215.9 x 137.16 mm
CTH-670	217 x 137 mm
ET-0405A-U	127 x 106 mm
Graphire 2	127.6 x 92.8 mm
Intuos 2	127.6 x 92.8 mm (probably)
Volito 2	127.6 x 92.8 mm

As a reference these are the standards DIN sizes comparable with those models:

DIN type	size
A4	210 x 297 mm
A5	148 x 210 mm
A6	105 x 148 mm

If you find any typo or want to add other models feel free to comment.

PD: This post has been obsoleted by a new entry.

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2018 / 07 / 27
Running EPF (Eclipse Process Framework) Composer in Linux, v2
From time to time I pretend to do practical work with EPF Composer and alwys my first handicap is to get it running natively in Linux but for one reason or another I always got stucked with the provided linux build.

This time I chose a different approach using the Windows build which it’s known it’s working using Wine as a compatibility layer. It worked. These are the installing instructions:

First we’ll create a separate Wine folder and, important, set to Win32 architecture, used in the EPF Composer build_:
```
export WINEPREFIX=~/.wine-epf-1.5.2
export WINEARCH=win32
```
Now we install Internet Explorer 8 using the nice winetricks tool since EPF Composer uses it for the HTML forms:
```
winetricks winxp ie8 corefonts
```
Install a Java runtime. I’ve only tried with te Oracle one:
```
wine jre-8u181-windows-i586.exe
```
In the Wine filesystem unzip the EPF Composer build:
```
cd $WINEPREFIX/drive_c/Program\ Files/
unzip ~/epf-composer-1.5.2-win32.zip 
chmod a+x cd $WINEPREFIX/drive_c/Program\ Files/epf-composer/epf.exe
```
And now you should be able to run EPF Composer:
```
$WINEPREFIX/drive_c/Program\ Files/epf-composer/epf.exe 
```
You can launch it from other terminal without declaring the Wine enviroment variables:
```
WINEPREFIX=~/.wine-epf-1.5.2 WINEARCH=win32 ~/.wine-epf-1.5.2//drive_c/Program\ Files/epf-composer/epf.exe 
```
And that’s it.

I didn’t started to do real work yet but it seems 100% operative.

As I’m using a 14” HD screen My only important concern are the font sizes. For some reasons changing resolution and font sizes with winecfg gaves some weird results.

Hope this helps.

PD: Added winxp and corefonts to the winetricks invocation
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2018 / 06 / 26
Abierto el registro para GUADEC 2018 en Almería
We are pleased to announce that registration for @guadec is now open! https://t.co/1yagN91Mci

Please see https://t.co/aL8rP6aVMU for more details! See you there! pic.twitter.com/cOARtORJSN
— GUADEC (@guadec) June 12, 2018

Tenemos el inmenso placer de anunciar que ya está abierto el registro para GUADEC 2018 que tendrá lugar los días 6-11 de julio en nuestra ciudad de Almería. El encuentro incluye tres días de conferencias, 3 días de talleres y encuentros técnicos y varias actividades sociales para los miembros de la comunidad de desarrollo GNOME.

Acerca de GUADEC

El Congreso de Usuarios y Desarrolladores de GNOME (GUADEC) es una reunión anual de desarrolladores y entusiastas de GNOME, así como de usuarios individuales, empresariales, educacionales y gubernamentales de todo el mundo. Proporciona un foro para miembros del proyecto GNOME para mostrar su trabajo y discutir acerca del futuro desarrollo de GNOME. GUADEC también es el hogar de iluminados del software libre, líderes de IT de alto nivel gubernamentales y empresariales que discuten estrategias, opciones de despliegue y el futuro del software libre. Cada año la GUADEC se aloja en un país europeo distinto.

¿Quién puede venir a GUADEC?

GUADEC es el mayor encuentro anual internacional de la comunidad GNOME, pero también es un punto de encuentro de entusiastas y tecnólogos apasionados por el desarrollo de software en comunidades abiertas, del software para usuarios finales y los interesados en la creación y mantenimiento de infraestructuras de la sociedad de la información ampliando los procomunes digitales.

No dejes de venir.

Más información en:
- Web: https://2018.guadec.org/
- Correo-e: guadec-list@gnome.org
- Grupo Telegram: @GUADEC
- Twitter: @GUADEC
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GNOME es un entorno de escritorio e infraestructura de desarrollo para sistemas operativos GNU/Linux, Unix y derivados Unix como BSD o Solaris; compuesto enteramente de software libre. Con una base de millones de usuarios en todo el mundo y adatpado a 166 idiomas y está disponible en las principales distribuciones GNU/Linux, incluyendo Fedora, Debian, Ubuntu, Red Hat Linux, CentOS, Oracle Linux, Arch Linux y Gentoo.
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