Blog

Here I post my thoughts, QGIS tips and tricks, updates on my QGIS-related work, etc.

QGIS hackfest 2014 (Essen) — day 2

03.10.2014 20:25 ·  Notes  ·  qgis, meetings

The second day of the QGIS hackfest is coming to an end.

The documentation team has continued to update the documentation and website, with over 30 commits today. The developers have not lagged behind — the number of commits is approaching 40. As always, Martin is a delight: thanks to his efforts, the rendering speed of a simple symbol renderer has increased significantly. Depending on the data, the speed increase ranges from 19 to 31%.

Also today we discussed:

Due to numerous requests from users, Tim has proposed changes to the QGIS release process (more details in QEP #3).

QGIS hackfest 2014 (Essen) — day 1

02.10.2014 20:36 ·  Notes  ·  qgis, meetings

The first day of the 12th QGIS Developer Meeting in Essen has passed. Actually, it’s not really correct to consider it a full-featured day of the meeting, because most of the attendees were just arriving today. Moreover, today Linuxhotel was hosting an event and we were not able to fully use its infrastructure.

But all this did not prevent us from getting to know each other, communicating and even (there were such maniacs) doing something. For example, Otto, Richard, and Yves started documentation update. The day ended with a joint dinner at Haus Großjung.

Boryspil

02.10.2014 05:19 ·  Notes  ·  travels, meetings

After a long break, I’m going to the QGIS developer meeting again. This time in Germany.

I’m in Boryspil now, almost two hours before boarding… Wi-Fi is not very good here: one 15-minute session, then you have to reconnect.

OSGeo-ICA Laboratory

26.09.2014 08:28 ·  Notes  ·  osgeo

The Open Source Geospatial Foundation (OSGeo), besides developing free GIS software, pays great attention to educational and scientific work. In particular, together with the ICA and ISPRS, OSGeo supports the formation of laboratories and research centers around the world (the so-called ICA-OSGeo Laboratory Network). The goal of this initiative is to promote and encourage educational, research, and other activities related to free GIS and open geodata.

The first (and so far the only) scientific and educational OSGeo laboratory in Ukraine and the former USSR was created on the basis of the Department of Physical Geography and Geoecology Department of the Faculty of Geography of Taras Shevchenko National University of Kyiv.

New role

09.08.2014 13:04 ·  Notes  ·  osgeo

From now on, I am an OSGeo Charter Member and an OSGeo Advocate. The first and, so far, the only one in Ukraine.

German visa

05.08.2014 10:02 ·  Notes  ·  visa

Last week I was in Kyiv applying for a German visa. It turned out that the process is not as complex and scary as it is said over the internet.

First, I checked the information published on the German embassy website and found out that:

What is important is that in the case of an application via the visa center, documents can be submitted either in person or with the help of an authorized representative, while applying via the embassy is only possible in person. I chose the second option — applying through the visa center. Firstly, I have to travel (to Kyiv or another city) anyway. Secondly, the number of available time slots at the embassy is much lower than at the visa center. Thirdly, application processing will be faster in the visa center. And lastly, when applying through the visa center, you can order delivery of the passport by courier service. So I checked train and bus schedules and chose the visa center in Kyiv: it should be more or less comfortable timing, and there is no need to stay overnight.

Next, determine the purpose of the trip and download a list of required documents, a visa application form, and, in the case of applying through the visa center, a consent for personal data processing. Then collect all the required certificates and other documents. Luckily, a notarized translation to German is not needed to be more precise:

Translation of Ukrainian documents is optional and not subject to notarization.

At least, this is the response I received to my question.

The sample of the visa application form is in German, but it can be filled out in Ukrainian, except for the name, surname, and place of birth. Although I filled it out in German. If you have to contact your bank to get a statement of account, make sure that the stamp is present not only on the certificate but also in the statement itself.

That’s pretty much all the preparation.

I arrived in Kyiv and spent some time finding the building of the visa center: formally, the visa center is located at Frunze street, 60. But to find it, one needs to turn to Zavodska street first and walk about 100 meters. Actually, under number 60, there is not only the German visa center but about 10 of them. There are Canada, Poland, France, Belgium, the Netherlands, all Scandinavian countries… Neat houses surrounded by a common fence.

The visa center’s website contains information about security measures: electronic devices (including mobile phones) are not allowed, bags and backpacks are not allowed, and so on. In fact, it’s not all that bad. You can bring your phone, but the security guard will ask you to turn it off. As for backpacks and bags, there are some luggage storage facilities. But I don’t know if it’s like that in all centers.

The documents were accepted quickly: I had an appointment for 9 a. m., but was already free at that time. This is despite the fact that I was 19th in line.

Actually, why am I talking about it. I just received a package with my passport, and there is a new visa in it.

PyQGIS Cookbook in Ukrainian

28.07.2014 11:09 ·  GIS  ·  qgis

I have finished translating the PyQGIS Developer Cookbook into Ukrainian. It will be available on the QGIS documentation portal soon.

Comments and constructive criticism are welcome. Or even better, create an account and edit directly in Transifex (although I personally don’t like it much and translate locally: git + Qt Linguist are the best).

QGIS hackfest 2014 (Vienna)

28.03.2014 18:35 ·  Notes  ·  qgis, meetings

The 11th QGIS developers meeting, held in Vienna (Austria), has finished. This time, the hackfest took place under the umbrella of a larger developer meeting — OSGeo Code Sprint 2014.

The activity of the participants was at a traditionally high level, and there is no sense or possibility to describe everything. Among the most notable things from an end-user prospective are:

There were also discussions about:

Hackfest:

Multithreaded rendering in QGIS

23.02.2014 17:49 ·  GIS  ·  qgis

At last! QGIS has finally got support for multithreaded rendering, the corresponding changes were merged into master by Martin Dobias just an hour ago. This is basically a revival of the 2010 GSoC project “QGIS on steroids” (successfully completed, but never merged into master), taking into account the latest changes to the QGIS codebase.

By default, multithreaded rendering is disabled, one can enable it in the QGIS settings “Settings → Options → Rendering → Render layers in parallel using all available CPU cores”. It is also possible to set canvas refresh interval during rendering (0 means real-time updates).

The work was done with the financial support from Lutra Consulting and Swiss QGIS User group.

QGIS 2.2 "Valmiera"

22.02.2014 12:37 ·  GIS  ·  qgis, release

As previously announced, QGIS has moved to a fixed 4-month release cycle. And now the first release on the new schedule has taken place.

This release focuses on bug fixes and performance improvements. Much effort has been put into developing and improving the Print Composer, making it even easier to create printed maps.

The full changelog can be found here. A visual changelog is also available. The most interesting and important changes are listed below: