OSGeo Planet

QGIS Blog: QGIS User Conference 2018

OSGeo Planet - Sun, 2018-06-03 19:18

This year’s QGIS User Conference will be embedded within the FOSS4G conference. That means that you should refer to the FOSS4G web site for all registration and event details with the exception of the QGIS Hackfest (22-26 August) which follows our normal organisation procedure on the QGIS Wiki.

There are five main activities for QGIS Users to enjoy at the conference:

  1. The QGIS Hackfest: This is our twice-yearly meet up to work on and improve the QGIS code base. Come along to this event if you want contribute documentation, bug fixes, bug reports, features and other ideas for improvements to the QGIS project. The hackfest is a side event to be held on the island of Zanzibar and will happen before the main conference. Again refer to the QGIS Hackfest wiki page for details and to register.
  2. The Workshops: FOSS4G is always popular for the wide range of workshops presented. The workshop presentations are very often by the developers of the software being explained, which gives you a unique opportunity to talk face to face with the people using the software you are using. There will be a number of QGIS specific workshops at FOSS4G – you will be able to identify them easily on the mobile app that provides the conference programme by filtering on ‘QGIS’ in the workshops section. For a current list of all the workshops at the event please refer to: https://2018.foss4g.org/workshop-schedule/ 
  3. The Presentations: There will be a wide range of QGIS related presentations during the main conference. 17 QGIS related presentations have been registered. See https://2018.foss4g.org/programme/list-of-presentations/ for a full list of the conference presentations.
  4. The Academic Track: This year a large number of academic papers have been submitted, a good number of which relate to QGIS. Watch the conference web site for more details to be published soon!
  5. The QGIS Plenary / Panel Discussion: During the conference we will have an ‘Ask Me Anything’ session with QGIS developers and community members forming a panel to field any questions you might want to ask! This is a unique opportunity to find out more about the project, its roadmap or just come along to say ‘thank you’ to the dedicated team of community members who put so much work into making QGIS!

If you have not already registered for FOSS4G2018, do so now to enjoy early bird rates! Visit the Registration Page for more details! We are looking forward to meeting you in Dar es Salaam and Zanzibar!

About the FOSS4G2018 Conference

The annual Free and Open Source Software 4 Geospatial. (FOSS4G) conference is the largest community gathering focused on open source geospatial software. FOSS4G brings together developers, users, decision-makers and observers from a broad spectrum of organizations and fields of operation. Through six days of workshops, presentations, discussions, and code sprints, FOSS4G participants, learn, exchange, and create new collaborations, geospatial products, standards.

FOSS4G is a global conference, with attendees from around the world! Last year, Boston, USA was the host city, before that in 2016 it Bonn, Germany. Now is the time for Dar es Salaam, Tanzania! FOSS4G 2018 will host numerous workshops over 27 – 28 August with exciting keynotes and presentations at the Julius Nyerere International Convention Centre 29 – 31 August, and finally Code Sprints and community building events September 1 & 2. In addition to bringing together the FOSS4G community in Dar, the 21st QGIS Developer meeting will take place in Zanzibar (a short 60min ferry trip away!) the 22 – 26 of August – the Geospatial Savanna is on the rise in East Africa!

The vision for the conference is to make it as accessible and inclusive as possible, bridging the gaps between the various communities that make us so strong, to make us stronger. This will be achieved through a Travel Grant Program that will enable economically disadvantaged participants the opportunity to attend, covering travel, lodging and conference costs. This will be bolstered by an exciting conference program, taking the very best that the open source geospatial community can offer. This ranges from locating schools to the instrumentation of communities with cheap, open source, 3D printed weather stations that improve community resilience to climate change.

The theme for FOSS4G 2018 is “Leave No-One Behind”. We live in a world where our users and developers have the opportunity to make a difference to the lives of everyone, whether it’s those in extreme poverty looking for access to clean water, to those using routing algorithms to calculate the fastest route to work. Location and geography are at the heart of these challenges and a FOSS4G 2018 in Dar es Salaam will invigorate our existing projects, bringing them to new users and developers while supporting and nurturing the existing community.

Categories: OSGeo Planet

MapTiler: Customize your map in MapTiler Cloud

OSGeo Planet - Thu, 2018-05-31 10:00

Since the launch, MapTiler Cloud featured seven beautiful base maps for various occasions like background map for presenting own data, car navigation or outdoor activities. But for those who want a specific design to match the company’s brand, we prepared a simple, but powerful tool to design own map style, which is available to all users now.

Entirely different map design in a few mouse clicks

Creating brand new map design is a simple task with Customize tool: you pick about six colors and all map elements will change accordingly.

The customize tool is available if you create a free account, sign in and click on any map. The Customize a copy button will bring you directly to the tool, where you can see group of layers and color which currently presents this group. By clicking on the color palette, you will get a color selection dialog, where you can define a new color for a selected group. The color selection tool capabilities are operating system dependent and range from a simple window with color selection and its representation in hex format to the complex tools with color-picking options. You can also turn off the layer completely.

Experimenting is a safe activity, the basic styles stay untouched and available in the administration. Each change can be easily reverted with a reset button.

Languages, fonts and 3D buildings

From the Customize tool menu, you can access the Language and Mics tab. There are currently more than 50 languages supported with an option to include alternative names for non-latin alphabets. The language selection is also possible for raster tiles. Mics tab offers font selection and a button for switching off 3D buildings.

All changes based on our basic maps done using Customize tool will stay compatible with future versions of software used on our hosting and data, which are updated weekly. 

Built from scratch

Advanced users have also other options how to change the map appearance. Hidden under three dots behind the map in the administration, there is an option to Edit style and Import style, as well as an option to Export style.

Edit style offers robust map design editor, which gives an option to work on every small map detail. Apart from changing colors, you can also add or remove map elements like buildings, selected landcover or specific POIs.

MapTiler Cloud also offers importing styles done in an external tool or text editor. Currently, there is a built-in support for GL JSON styling language. 

All customization methods are available in MapTiler Cloud, which you can start using with a free account.

With Edit tool, you can either customize a map visually or by writing source code With Edit tool, you can either customize a map visually or by writing source code

Categories: OSGeo Planet

Gis-Lab: Гуляем по пересеченной местности в открытых ГИС: о базовых возможностях моделирования пеших перемещений на основе QGIS, GRASS и SAGA

OSGeo Planet - Thu, 2018-05-31 08:03

В статье рассмотрены решения некоторых отдельных, наиболее популярных задач, связанных с моделированием пеших перемещений (людей или животных) по пересечённой местности. Потребность в такого рода моделировании часто возникает при необходимости проложить маршрут в пешем походе, определить области перемещений пределах заданных временных интервалов, а также в задачах археологии, зоологии и других дисциплин.

Рассмотрено решения для трёх базовых проблем:

– Построение изохрон перемещений по пересеченной местности относительно одной или множества исходных точек
– Построение оптимального (с точки зрения временных затрат) маршрута по пересеченной местности между двумя точками
– Построение коридора оптимальных временных затрат между двумя точками

Для подготовки данных и моделирования используется открытый пакет QGIS 3.0.2 с модулями GRASS и SAGA, вызов которых доступен из панели анализа.

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Categories: OSGeo Planet

GIS for Thought: History of OpenStreetMap in Ireland

OSGeo Planet - Wed, 2018-05-30 11:00

Last week I was invited to give a workshop at the Second Irish OSGeo Conference in Portlaoise. The event was a great success with a attendees from across the OSGeo space, from academics to startups.

I also volunteered to give a talk on OpenStreetMap (OSM) in Ireland. Since we are currently in the process of setting up an official chapter of OSM in Ireland. Check out OpenStreetmaMap.ie if you want to help.

Check out my full talk: here

But some of the visuals are more interesting than the talk as a whole.

To start out, the first edits in Ireland.

The first line:

Located in Banbridge, in Northern Ireland between Newry and Belfast:

First polygon:

Clearly St. Stephens Green, a great park in Dublin:

Then a look at the full history of roads in Ireland on OpenStreetMap:

A large part of the history of OpenStreetMap in Ireland is the townlands project. Townlands in Ireland are small divisions of land, often used in addressing for example. Your address could be: Mr. O’Brien, Blue house, Tawny (the townland), Donegal. The postman knows where you are.

There are over 61,000 townlands in Ireland. Traced manually from 650+ out of copyright OSi maps from Trinity College. Check out Townlands.ie for more info.

The project ran from 2012 to 2017 and the progress is clear when charting the history of boundaries in OpenStreetMap in Ireland:

And since the conference was held in Portlaoise, here is how it looks over time in OSM:

For the script to generate these histories see: Creating OpenStreetMap History Visualisations

Categories: OSGeo Planet
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