OSGeo Planet

PostGIS Development: PostGIS 2.4.0 Released

OSGeo Planet - Sat, 2017-09-30 00:00

The PostGIS development team is pleased to announce the release of PostGIS 2.4.0. Best served with PostgreSQL 10rc1 and pgRouting 2.5.0. See the full list of changes in the news file.

IMPORTANT NOTES

If you are upgrading from an existing PostGIS install, make sure after installing PostGIS binaries to do.

ALTER EXTENSION postgis UPDATE;

— if you have additional postgishy extensions below upgrade them too

ALTER EXTENSION postgis_sfcgal UPDATE; ALTER EXTENSION postgis_topology UPDATE; ALTER EXTENSION postgis_tiger_geocoder UPDATE; ALTER EXTENSION pgrouting UPDATE;

In order to have Map Box Vector Tiles support enabled, you’ll need to compile with protobuf support and pkg-config to verify the correct minimum version of protobuf-c see protobuf for details. ST_FrechetDistance function will not be enabled if PostGIS is compiled with lower than GEOS 3.7.0. GEOS 3.7.0 is not released yet but is expected sometime next month.

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Categories: OSGeo Planet

GeoServer Team: GeoServer 2.12-RC1 Released

OSGeo Planet - Fri, 2017-09-29 21:10

We are happy to announce the release of GeoServer 2.12-RC1. Downloads are available (zipwardmg and exe) along with docs and extensions.

This is a release candidate release of GeoServer made in conjunction with GeoTools 18-RC1.

We want to encourage people to test the release thoroughly and report back any issue found. With no further delay, let’s see what’s new, that is, what is there to test!

Rest API now using Spring MVC

In March, we upgraded the framework used by the GeoServer REST API from Restlet to Spring MVC. All the endpoints should remain unchanged, but they do need testing to ensure there weren’t any unintended side effects.

As part of this upgrade, we also have new REST documentation, providing detailed information about each endpoint.

Thanks again to the code sprint sponsors:

  • Boundless
  • GeoSolutions
  • Astun Technology
  • Gaia3D
  • Insurance Australia Group (IAG)
  • How 2 Map
  • FOSSGIS
  • Atol Conseils et Développements
  • Geodan
WMTS Cascading

Adds the ability to create WMS layers backed by remote WMTS layers, similar to the pre-existing WMS cascading functionality.

See GSIP-162 for more details.

Style Based Layer Groups

Adds the ability to define a listing of layers and styles using a single SLD file, in accordance with the original vision of the SLD specification. This includes a new entry type in the Layer Group layers list, and a new preview mode for the style editor.

See GSIP-161 for more details.

Options for KML Placemark placement

New options for KML encoding have been added, to control the placement of placemark icons, mostly for polygons. The syntax of the new options introduces three new top level format options keys:

&format_options=kmcentroid_contain:true;kmcentroid_samples:10;kmcentroid_clip:true

See GSIP-160 for more details.

GeoWebCache data security API

Add an extension point to GeoWebCache allowing for a security check based on the layer and extent of the tile. Adds an implementation of this extension point to GeoServer’s GWC integration.

This change mostly only affects developers, but will lead to improved security for users in the future.

See GSIP 159 for more details.

NetCDF output support for variable attributes and extra variables

Adds the following to the NetCDF output extension:

  1. An option to allow all attributes to be copied from the source NetCDF/GRIB variable to the target variable.
  2. Support for manual configuration of variable attributes, much like the current support for setting global attributes.
  3. Support for configuration of extra variables which are copied from the NetCDF/GRIB source to the output; initially only scalar variables will be supported. Extra variables can be expanded over “higher” dimensions, that is, values copied from one scalar per ImageMosaic granule are assembled into a multidimensional variable over, for example, time and elevation.

See GSIP 158 for more details.

New labeling features and QGIS compatibility

A number of small new features have been added to labeling to match some of QGIS features, in particular:

  • Kerning is on by default
  • New vendor option to strikethrough text
  • New vendor options to control char and word spacing

../../../_images/charSpacing.png

  • Perpendicular offset now works also for curved labels (previously only supported for straight labels):
  • Labeling the border of polygons as opposed to their centroid when using a LinePlacement (here with repetition and offset):

Along with this work some SLD 1.1 text symbolizer fixes were added in order to better support the new QGIS 3.0 label export, here is an example of a map labeling with background image, as shown in QGIS, and then again in GeoServer using the same data and the exported SLD 1.1 style (click to enlarge):

   

CSS improvements

The CSS styling language and editing UI have seen various improvements. The editor now supports some primitive code completion:

At the language level:

  • Scale dependencies can now also be expressed using the “@sd” variable (scale denominator) and the values can use common suffixes such as k and M to get more readable values, compare for example “[@scale < 1000000]” with “[@sd < 1M]”
  • Color functions have been introduced to match LessCSS functionality, like “Darken”, “Lighten, “Saturate” and so on. The same functions have been made available in all other styling languages.
  • Calling a “env” variable has been made easier, from “env(‘varName’)” to “@varName” (or “@varName(defaultValue)” if you want to provide a default value).

As you probably already know, internally CSS is translated to an equivalent SLD for map rendering purposes. This translation process became 50 times faster over large stylesheets (such as OSM roads, a particularly long and complicated style).

Image mosaic improvements and protocol control

Image mosaic saw several improvements in 2.12.

First, the support for mosaicking images in different coordinate reference systems improved greatly, with several tweaks and correctness fixes. As a noteworthy change, the code can now handle source data crossing the dateline. The following images show the footprints of images before and after the dateline (expressed in two different UTM zones, 60 and 1 respectively) and the result of mosaicking them as rasters (click to get a larger picture of each):

There are more good news for those that handle mosaicks with a lot of super-imposing images taken at different times. If you added interesting information into the mosaic index, such as cloud cover, off-nadir, snow cover and the like, you can now filter and sort over them, in both WMS (viewing) and WCS (downloading) by adding the cql_filter and sortBy KVP parameters.

Here is an example of the same mosaic, the first composite favoring smallest cloud cover, the second one favoring recency instead (click to enlarge):

    

GeoPackage graduation

The GeoPackage store jumped straight from community to core package, in light of its increasing importance.

The WMS/WFS/WPS output formats are still part of community. Currently GeoPackage vector does not support spatial indexes, but stay tuned, it’s cooking!

New community modules

The 2.12 series comes with a few new community modules, in particular:

  • Looking into styling vector tiles and server side using a single language? Look no further than the MBStyle module
  • For those into Earth Observation, there is a new OpenSearch for EO module in the community section
  • Need to store full GeoTiff in Amazon S3? The “S3 support for GeoTiff” module might just be what you’re looking for
  • A new “status-monitoring” community module has been added, providing basic statistics system resource usage. Check out this pull request to follow its progress and merge.

Mind, community modules are not part of the release, but you can find them in the nightly builds instead.

Other assorted improvements

Highlights of this release featured below, for more information please see the release notes (2.12-RC12.12-beta):

  • Users REST uses default role service name as a user/group service name
  • imageio-ext-gdal-bindings-xxx.jar not available in geoserver-2.x.x-gdal-plugin.zip anymore since 2.10
  • REST GET resource metadata – file extension can override format parameter
  • GeoServer macOS picks up system extensions
  • SLD files not deleted when SLD is deleted in web admin
  • Reproject geometries in WMS GetFeatureInfo responses when info_format is GML
  • Include Marlin by default in bin/win/osx downloads, add to war instructions
  • Handle placemark placement when centroid of geometry not contained within
  • Enable usage of viewParams in WPS embedded WFS requests
  • Add GeoJson encoder for complex features
  • Allow image mosaic to refer a GeoServer configured store
  • Duplicate GeoPackage formats in layer preview page
  • ExternalGraphicFactory does not have a general way to reset caches
  • Generating a raster SLD style from template produced a functionally invalid style, now fixed
  • Style Editor Can Create Incorrect External Legend URLs
  • Namespace filtering on capabilities returns all layer groups (including the ones in other workspaces)
Test, test, test!

Now that you know about all the goodies, please go, download and test your favourite ones. Let us know how it went!

About GeoServer 2.12

GeoServer 2.12 is scheduled for October 2017 release.

Categories: OSGeo Planet

OSGeo.nl: Nieuw OSGeo.nl Logo

OSGeo Planet - Fri, 2017-09-29 15:38

Het OSGeo.org Marketing Committee,  voorgezeten door onze eigen Marc Vloemans, is afgelopen maanden druk bezig geweest met een algemene OSGeo.org “Rebranding”. Dit gaat verder dan veranderen van logo: het gaat om een complete vernieuwing van huisstijl, website en en veel meer. Het Nederlandse bedrijf Get Interactive heeft daarbij een groot deel van de uitvoering gedaan. Een en ander is al te zien op de OSGeo.org website.

Als OSGeo.org Lokale Afdeling (Chapter) willen we als OSGeo.nl natuurlijk graag volgen. Gelukkig heeft OSGeo.org zgn “SubBranding” gemakkelijk gemaakt door de design-bestanden te delen via GitHub en een stijlgids te leveren. Daardoor kon Winifred Broeder snel een toepasselijk nieuw logo voor OSGeo.nl maken, waarvoor dank! Zie hieronder en natuurlijk op onze website:

2017 logo OSGeo.nl

Er zal komende tijd nog meer moeten gebeuren, denk aan verdere website updates, banners, visite-kaartjes en andere OSGeo.nl marketing-uitingen. In ieder geval is ons nieuwe logo al op de OSGeo.nl website te zien. Dat doet mij denken dat we nog een vacature hebben in het bestuur voor Marketing en Communicatie. Heb je praktische ervaring met web, media, design en/of “MarCom”? Laat ons weten via bestuur@osgeo.nl.

Categories: OSGeo Planet

Fernando Quadro: Nova turma do Curso de PostGIS Básico

OSGeo Planet - Fri, 2017-09-29 14:55

Neste curso de PostGIS ministrado pela Geocursos você terá uma visão completa do PostGIS, e aprenderá como trabalhar com esta poderosa extensão espacial do banco de dados PostgreSQL.

O curso é voltado para profissionais da área de geoprocessamento, desenvolvimento de software e administradores de bancos de dados, com noções de SIG e linguagem SQL, que estejam em busca de aprender como gerir dados geográficos complexos seja pela necessidade de efetuar análises aprofundadas, seja para a visualização online em tempo real das análises realizadas, utilizando uma base de dados evoluída e de ótima estabilidade.

Veja abaixo a ementa:

1. Instalação do PostgreSQL
2. Instalação do PostGIS
3. Conversão de dados legado utilizando shp2pgsql
4. Construção de tabelas geoespaciais
5. Geometrias
6. “Geografias” (Geography Data Type)
7. Queries geoespaciais
8. Exemplos mundo real
9. Truques e dicas

Para saber mais informações, e realizar a sua inscrição basta acessar o site:

http://www.geocursos.com.br/postgis-basico/

A Geocursos informa que estão abertas as inscrições para o Curso Online de PostGIS Básico que acontecerá entre os dias 11 de Novembro e 02 de Dezembro, aos sábados das 14h00 as 18h00 (Horário de Brasília).

Categories: OSGeo Planet

gvSIG Team: gvSIG 2.4 RC2 is now available to download

OSGeo Planet - Fri, 2017-09-29 13:01

The second gvSIG 2.4 Release Candidate (gvSIG 2.4 RC2) is now available.

We encourage you to test it and send us any errors and suggestions in the users mailing list.

The main new features of this version have been published at the gvSIG blog during the last weeks. Some of them are the possibility to download data from Open Street Map or the access to H2 from gvSIG Desktop.

Thanks for your collaboration.


Filed under: community, english, gvSIG Desktop, testing Tagged: gvSIG 2.4
Categories: OSGeo Planet

gvSIG Team: Ya está disponible gvSIG 2.4 RC2 para descargar

OSGeo Planet - Fri, 2017-09-29 12:54

Ya está disponible gvSIG 2.4 RC2, la segunda distribución candidata a versión (Release Candidate) de gvSIG 2.4.

Os animamos a que la probéis y a que nos reportéis los posibles errores y sugerencias que encontréis a través de la lista de usuarios.

Las principales novedades de esta versión las podéis encontrar en los distintos post publicados en el blog de gvSIG, destacando, entre otras, la descarga de datos de OpenStreetMap o el acceso a las herramientas de administración de H2 desde gvSIG Desktop.

Gracias por vuestra colaboración.

 


Filed under: community, gvSIG Desktop, spanish, testing Tagged: gvSIG 2.4
Categories: OSGeo Planet

From GIS to Remote Sensing: SCP Questions of This Month: September

OSGeo Planet - Fri, 2017-09-29 08:46
This post is a collection of questions and answers about the Semi-Automatic Classification Plugin (SCP) and remote sensing which were discussed in the Facebook group and the Google+ Community this month.
These questions vary from supervised classification technique to software issues, and can be useful to the readers of this blog for solving issues about the use of SCP.

Categories: OSGeo Planet

gvSIG Team: Registration period for workshops at 13th International gvSIG Conference is now open

OSGeo Planet - Thu, 2017-09-28 11:12

Registrations for free workshops at 13th International gvSIG Conference can be done from now. Conference will be held from October 18th to 20th at School of Engineering in Geodesy, Cartography and Surveying (Universitat Politècnica de València, Spain).

The workshops available are:

– Workshop 1: Introducción a gvSIG
– Workshop 2: Geoestadística con gvSIG
– Workshop 3: gvSIG aplicado a criminología
– Workshop 4: Introducción al desarrollo en gvSIG con Scripting
– Workshop 5: Hydro-geomorphological Modelling in gvSIG with the JGrasstools plugins (in English)
– Workshop 6: gvSIG Online y gvSIG Mobile
– Workshop 7: Desarrollo avanzado en gvSIG con scripting

Apart from the registration at the workshop, the registration to the gvSIG Conference must be done from the website.

In addition, all the information about workshops can be consulted at the gvSIG blog, with the cartography, and what you have to install in case you have to take your own computer.


Filed under: english, events, training Tagged: 13th gvSIG Conference, workshops
Categories: OSGeo Planet

gvSIG Team: Abiertas las inscripciones a los talleres de las 13as Jornadas Internacionales de gvSIG

OSGeo Planet - Thu, 2017-09-28 10:25

Ya están abiertas las inscripciones a los talleres gratuitos que se van a realizar durante las 13as Jornadas Internacionales gvSIG. Las jornadas tendrán lugar del 18 al 20 de octubre en Valencia (España), en la Escuela Técnica Superior de Ingeniería Geodésica, Cartográfica y Topográfica (Universitat Politècnica de València).

Los talleres que se impartirán son los siguientes:

– Taller 1: Introducción a gvSIG
– Taller 2: Geoestadística con gvSIG
– Taller 3: gvSIG aplicado a criminología
– Taller 4: Introducción al desarrollo en gvSIG con Scripting
– Taller 5: Hydro-geomorphological Modelling in gvSIG with the JGrasstools plugins
– Taller 6: gvSIG Online y gvSIG Mobile
– Taller 7: Desarrollo avanzado en gvSIG con scripting

Para poder realizarlos, aparte de la inscripción al taller hay que inscribirse en las jornadas. Las inscripciones son gratuitas, con aforo limitado.

Así mismo, en el blog de gvSIG también está disponible toda la información de cada taller, con la cartografía necesaria y lo que hay que llevar instalado en caso de que en el taller se deba llevar ordenador propio.


Filed under: events, spanish, training Tagged: 13as Jornadas gvSIG, talleres
Categories: OSGeo Planet

GIScussions: Tales from Boston – the FOSS4G TGP

OSGeo Planet - Thu, 2017-09-28 10:17

This is my last post on the 2018 FOSS4G Travel Grant Programme (but you can look forward to several more about the 2019 TGP). I wanted to share some of the feedback that I have received from the TGP recipients.

In case you have forgotten, you can donate to the 2018 TGP now.

My name is Mayra Zurbarán, I am from Colombia (not Columbia!) and a PhD Student at Universidad del Norte in Barranquilla, Colombia in Computer Science. As a junior researcher in the area of location-based information systems, this conference is of great relevance.

In Colombia, however the Free and Open Source movement is present, but lacks strength. Thanks to the Sustain-T project by Erasmus Mundus I was privileged to do my doctoral internship at Politecnico di Milano with Prof. Maria Brovelli; member of OSGeo and a keen promoter of the Geo for All initiative. During this internship I was brainwashed of everything I thought were the right tools for my research and was introduced to the FOSS4G world, which I am proud to say I have contributed in a small part; developing the Hotspot Analysis Plugin for QGIS and now working on the second edition of the PostGIS Cookbook.Paul Ramsey’s talks definitely pushed some buttons on how the open-source economy works and why it is relevant to contribute!

My previous experiences with similar events goes back to attending the ISPRS conference 2016 in Prague thanks to the GeoLab, led by Prof. Brovelli. Since then, I was very interested of getting to attend a FOSS4G event and as this was my first! I was super enthusiastic to finally see what all the well founded fuss is about and if it were not for the awarded grant this would not have been possible. Thanks a lot to the organizing committee for taking the trouble to take on the immense task of pulling this awesome and necessary event through for the GIS community.

The possibility this conference brings for networking with people working on relevant and the most up-to-date developments was definitely the most valuable aspect of attending the conference; besides, the possibility of watching the contents online for the ones I wanted to be present, but were happening at the same time of the ones I did attend is a great plus; not just for me, but for everyone who was not able to physically attend.

Thanks again and rest assure you’ve set the bar high for upcoming FOSS4Gs. Mayra.

Anna Petrasova

I am a PhD student at North Carolina State University, where I am part of GeoForAll laboratory focusing on the design of dynamic geovisualizations and tangible interfaces for geospatial modeling. I participated in couple previous local FOSS4G conferences in the US and in Europe and always enjoyed them tremendously thanks to the relevant content and community.  FOSS4G 2017 in Boston was no different, it was a great experience from the start to the last day.

During the first two days of workshops at Harvard I delivered a workshop From GRASS GIS novice to power user and in the remaining time I helped attendees in two other workshops. I participated in couple workshops before and I know that there are times when you get confused, or something doesn’t work for you and without help it’s very difficult to catch up. So I was happy to help out in my colleagues’ workshops where they had over 40 people.

The first day of the main conference as a volunteer I helped direct people to the different presentation rooms. Additionally, at the OSGeo booth my colleagues and I setup an interactive demo of Tangible Landscape – a tangible user interface for geospatial modeling powered by GRASS GIS and Blender. It attracted a lot of folks to OSGeo booth and showed non-traditional and innovative ways to use OSGeo and other free and open source software in research and community outreach.

Later on that day I helped to record presentations, which is a great way to serve as a volunteer and at the same time get to see the talks. Since I work a lot with topography, I was glad to learn about new Arctic DEM and how it was created using open source tools, which I didn’t know before.

The following day I presented my work on Visualization and analysis of active transportation patterns derived from public webcams, where my colleagues and I used crowdsourced work to get information about pedestrians from crowdsourced webcams and visualize it with open source software. It was encouraging to see the room almost full and it made it easier for me to network with people later on. Networking was a big part of the conference for me, and there were many opportunities to make connections during the conference,  to ask about job situations, and to bring new people to my project’s community (GRASS GIS).

Since this semester I take class called Tools for Open Geospatial Science, I really looked forward to seeing Richard Stallman’s keynote, and I summarized it on the class dashboard and posted it for other students to help them understand the importance of user freedom and licenses.

Although Boston is a beautiful city, it is rather expensive and so this travel grant allowed me to stay during the entire conference. I was able to participate in the code sprint, and although this event is short, I was able to accomplish several small tasks on my GRASS GIS TODO list and at the same time get some new people involved in improving documentation and tutorials.

Back to Raleigh I am taking with me many nice memories, ideas, contacts, but also stickers and flyers, which I will distribute when there is opportunity.

Harison Andriambelo, University of Antananarivo-Madagascar The Open Source Geospatial Foundation kindly granted me a free registration for the FOSS4G 2017 meeting in Boston.  As a PhD student at the University of Antananarivo in Madagascar, this support was vital to allow me the oppportunity to participate in this conference. I regularly use free and open geospatial software in my work on wetland conservation.  It was great to learn about the latest developments in the tools I use such as spatial R packages and QGIS.  Across the parallel sessions I saw many inspiring talks on applications of geospatial technologies.  I was particularly interested in the new approaches for processing data collected from drones for environmental mapping, and in the diverse ways governments and NGOs are building environmental-related solutions using free software stacks.  Overall this was a great conference with some fascinating plenary speakers, very helpful exhibitors and a friendly atmosphere.  The gala event in the aquarium was a nice addition to the programme. Back in Madagascar, I am going to continue to explore using software that I learned about during the meeting, and I will share the potential of these tools with my colleagues.  I’m excited that FOSS4G 2018 wll be in Dar es Salaam.  Tanzania is much closer to Madagascar, so I hope to be able to attend again next year.

My name is Mohammed Zia.

I’m a PhD student and Geospatial Developer at one of the key GIS research and development centre at Istanbul Technical University, Turkey. I use FOSS4G and open-data for everything, whether it’s my research, a service developed for government and campus, or something else. Attending FOSS4G Boston 2017 was crucial for me, especially this year, for the following main reasons:

  1. It allowed me to connect, in-person, for the first time with like minded folks who believe in free-software and data movement. It was an overwhelming experience.
  2. It helped me to grow and learn as a team, since I was also in the Local Organising Committee.
  3. I met many potential employers where I had the opportunity to showcase and discuss my capabilities and skill-set.
  4. I met many great minds who helped me improve my understanding on many subjects.

All this would not have been possible without the financial support provided by the TGP. I was only able to cover a fraction of the whole expenditure, but TGP helped me cover the remaining part. I’m highly thankful to them and those sponsors who played crucial role behind the scene to help me, and many others like me, to attend this great event.

As I’m about to finish my PhD, with this newly built network, I’ll be able to move on to the next juncture of my career fairly easily. Meanwhile, being as the head of the GIS department of the lab, I’d encourage students to switch to the FOSS4G altogether and try to get involved with open-projects, not only in order to learn how to code better but also to make some solid contributions to a community that has always been so supportive and helpful in history. I believe that FOSS4G miss some educational part yet and there is a call for effort in that direction, although the current main focus is on software and data development and curation. I’m glad that being an academic person I was able to attend this event and now I’m thinking of connecting the dots in that direction.

I’ve attended many conferences in the past, but by far, this was the most successful and satisfying one. I’d love to get more involved with OSGeo activities in future with this new vigour and try to get more around gatherings like FOSS4G.

Thanks a ton TGP committee for letting me express myself and making my presence possible.

-Zia

Jerome Oyetoro (abbreviated)

Generally, the FOSS4G conference 2017 in Boston was a success and an exciting experience. It was a gathering of about 1,139 Open Source enthusiasts, users and professionals from all over the globe who came to share their skills, experiences, interests and innovations in a two days workshop at the Harvard University and a three days conference at the World Trade Centre. The BLOC (Boston Local Organizing Committee) displayed a great level of coordination. The venues of the conference couldn’t have been better to host the number of attendees who graced the event.

eHealth Africa was duly represented with a presentation on “Using FOSS4G to Support Polio Eradication in West Africa”. Open Source for Geo Spatial is the way to go for the geospatial industry to reduce the cost of applications and foster collaboration and cooperation in solving the increasing challenges facing the world at this time from managing the sophistication of the mega cities in the western world to the poverty and health related issues in the developing world. I delivered a presentation on “Using FOSS4G to Support Polio Eradication in West Africa ” The presentation went well. The attendees in the presentation were excited about the great work eHealth Africa is doing on the polio eradication effort in Africa and are interested in our data. The presentation video was recorded and there was a promise to share the video at a later date.

Lesson learnt for me in the conference was huge and unquantifiable. I count myself as highly privileged to be given the opportunity to attend the conference. The hospitability of the people of the city of Boston was great, almost everyone I turned to for direction and guidance was willing to help, though a few were not. The conference organizers were very friendly and respond at the snap of the fingers to every request with smiles. This is for me a sense of belonging and breaking down racial barrier, disregarding cultural backgrounds and eliminating ideological differences to create a harmonious environment for the successful celebration of 2017 FOSS4G conference in Boston.

Most important is the increase in awareness in the need for collaboration, cooperation and contribution spirit that is required of everyone user and developer of the open source and free software for geospatial now and in the future. The shift from commercial applications in the industry is no doubt growing, even though, many GIS specialists still use the hybrid of the open source and proprietary applications.

I was shocked when I heard in the “Opening Planery” that $10,000 was what was initially available for grant, which then means there were only 10 recipients of $1,000 each plus granting access to the conference and the gala night which was another $850 in value. I counted myself lucky to have been considered for this philanthropic gesture by the good people of OSGeo. It went a long way to bring smiles and succor to me. Words are not enough to express my gratitude to Steven Feldman and Michael Smith for their flexibility, responsiveness, dedication, professionalism and hospitality. They handled everything with no fear or favor. They made it easy for the grant to reach everyone in the most convenient way demanded by the grantees.

I appreciate all the support given me from within and outside the organization from putting the presentation slides together, to fine tuning it, working through it, sharing ideas, contributing to it, to getting all the necessary travel documents together to making funds available without which the conference wouldn’t have been a success. The conference was a great experience for me and I do hope this would be sustained and most especially more attention would be given to Africa to build the community of OSGeo members. We are already building one in Nigeria https://wiki.osgeo.org/wiki/Nigeria, but needs a lot of support to drive some of our programmes targeted at contributing to the OSM through Mapathon and other programmes.

Bridget Fleming, HOD Geography, St John’s College (abbreviated)

Preconference Workshop – Introduction to GIS Using QGIS

I attended an excellent preconference workshop at the Center for Geographic Analysis at Harvard presented by Frank Donnelly, the Geospatial Data Librarian at Baruch College CUNY. (http://2017.foss4g.org/workshop-signup/#openModal-301)

Participants were able to bring both the tools and the knowledge they gained from this workshop to enhance their projects and the organisations they work for. As the incoming IEB Geography moderator, this workshop has enabled me to used local data to produce maps for teacher resources and resources for the final geography Paper 2 examination.

The course content for this workshop was generously shared with us and Frank Donnelly has given me permission to distribute his course under the creative commons licence. I will be sharing this on the SAGTA website and at the 2018 IEB geography teacher’s conference: http://faculty.baruch.cuny.edu/geoportal/resources/practicum/gisprac_2017july_fd.pdf

Web-mapping is a growing trend and the GIS skills learnt will be transferred to material that I plan to develop in the classroom. St John’s College has run three GIS course for geography teachers to date and the new course material shared at this workshop will be used to update future courses. The workshop was also a wonderful networking opportunity. St John’s College will also be involved in a pilot programme to test GIS resources to teach earthquakes and tropical cyclones. http://scieds.com/gis-explorations-of-earth/ Once we have tested these resources, they will be shared at cluster, regional (ISASA schools) and hopefully at national level with other interested teachers.

The conference full schedule with keynote speakers and paper sessions can be found here: http://foss4g.guide. Fortunately, all presentations were recorded – frequently I wanted to attend two presentations at the same time. All the presentation slides were also made available: http://2017.foss4g.org/post_conference/ This is now a wonderful resource for teachers who were not able to attend. Talks can be viewed and slides used in the classroom as a teaching resource.

Feye Andal

Last August 16-19, 2017, I attended the International Conference For FOSS4G held in Boston, Massachussets, USA. It is an annual recurring global event hosted by OSGeo. The FOSS4G (Free and Open-Source Software for Geospatial) conference is the largest global gathering focused on open source geospatial software. It brings together developers, users, decision-makers, and observers from a broad spectrum of organizations and fields of operation. I was one of the ten travel grant awardees under the OSGeo Travel Grant Programme (TGP). Through the financial support from OSGeoand UP NOAH have provided me, I was able to attend FOSS4G. It has given me the opportunity to gain knowledge on the on-going open-source projects around the world. My participation from the conference has provided me direct access to presentations from many organizations within the open-source community, allowing me to gain valuable information about what other projects are all about and where they are focusing their efforts. Attending this conference has provided me with opportunity to learn more about the latest free and open-source software for geospatial technologies and developments, but also increase visibility for the research organization I am working for, UP NOAH.

Favorite Sessions
  1. Breaking Up is Easy to Do: Leaving ESRI Behind for QGIS – A Case StudyThis, perhaps, was one of my favorite sessions. Alex Cohn discussed the reasons why their organization made a transition from using ArcGIS to QGIS and explained the impacts of this transition on their everyday operations for two years.
  2. It’s About People: Putting the ‘Community’ in ‘Open Data Community’This session was basically focused on solutions and challenges to empowering collaboration within the community using the MapStory project. MapStory is a free and open-source platform for crowd-sourcing global spaciotemporal data. Since it is a participation-focused open data platform, it emphasizes and revolves around the contribution of the global community.
  3. Lastly, I enjoyed listening to the talk of Steven Feldman about Fake Maps. Obviously, it was telling us about the power of maps that may mislead people through the message of the map intentionally, or through a lack of understanding. It was a fun and chill talk by Steven and I am sure that everyone loved it.
The Keynote

There were 5 keynotes for this year’s conference and I must say that one really stood out — the keynote from THE Richard Stallman. Dr. Richard Stallman launched the free software movement in 1983 and started the development of the GNU operating system in 1984. It is a free software — everyone has the freedom to copy it and redistribute it, with or without changes. It was a pretty long keynote though, but surely leaves discussion within the community about what an open-source software really is.

Wrap Up

Attending FOSS4G was quite rewarding for me. It is an opportunity that should not be missed. It was also great to meet the geo-geeks and learn so much from them.

I would want to take this chance to thank everyone involved in making this conference possible.

Next year, it will be held in Tanzania in August, and I hope to be there!

May the FOSS be with you!

Categories: OSGeo Planet

gvSIG Team: Taller sobre gvSIG Online y gvSIG Mobile en las 13as Jornadas Internacionales gvSIG

OSGeo Planet - Thu, 2017-09-28 10:13

El próximo jueves 19 de octubre de 2017 se impartirá un taller sobre gvSIG Online y gvSIG Mobile durante las 13as Jornadas Internacionales gvSIG, que se realizaran en Valencia – España.

En este taller se mostrarán las herramientas y aplicaciones básicas de interés acerca del funcionamiento de gvSIG Online (la plataforma integral para crear Infraestructuras de Datos Espaciales), gvSIG Mobile (la aplicación móvil para toma de datos en campo) y la combinación de ambos para sincronizar en tiempo real el levantamiento de datos en campo con el geoportal. También se mostrará como interactúa gvSIG Online con gvSIG Desktop, la aplicación de escritorio.

En el taller se explicará cómo gestionar diferentes proyectos (visores de mapas) en gvSIG Online, cómo se gestionan sus capas bases, cómo publicar los datos vectoriales, raster y servicios OGC, edición de los datos online, crear simbologías y también la conexión de las capas con gvSIG Desktop, tanto para publicar como para editar datos. Igualmente se dará un repaso de cómo es el funcionamiento general de los componentes que conforman una Infraestructura de Datos Espaciales (Geoportales, BBDD, Geoserver, Geonetwork, Servicios OGC) .

Por otro lado, se enseñará de forma práctica el uso de la aplicación gvSIG Mobile (app móvil), muy útil para el levantamiento de datos en campos (gestión de inventario…). Mediante conexión a internet se mostrará cómo realizar la conexión vía web de los datos, la descarga de capas en la app, la edición en campo en modo off- line y por último subir los nuevos cambios a gvSIG Online para sincronizar en tiempo real.

La finalidad de este taller es mostrar a los participantes las nuevas tecnologías y evolución de la Información Geográfica en las Infraestructuras de Datos Espaciales con soluciones libres, cómo se integran las aplicaciones móviles para gestionar nuestros datos geográficos en la nube, la interoperabilidad que existe entre gvSIG Online y otros software de escritorio a través de los servicios web o conexión de base de datos.

El taller tendrá una duración estimada de 2 horas y será necesario inscribirse, de forma gratuita, a través del siguiente enlace (inscripciones abiertas a partir del jueves 28 de septiembre):

http://www.gvsig.com/es/eventos/jornadas-gvsig/13as-jornadas-gvsig/inscripcion-talleres

Para poder realizar el taller se deberá tener instalada previamente la aplicación gvSIG Mobile en la tablet o dispositivo móvil (disponible para Android), la cual estará disponible para descargar los próximos días. En este mismo post se dará unos días antes de las jornadas información de dónde descargarla, cartografía a utilizar…

Podéis consultar el programa completo de las jornadas aquí:

http://www.gvsig.com/es/eventos/jornadas-gvsig/13as-jornadas-gvsig/programa

Inscripción a las jornadas (obligatoria para inscribirse en los talleres):

http://www.gvsig.com/es/eventos/jornadas-gvsig/13as-jornadas-gvsig/inscripcion

 


Filed under: events, geoportal, gvSIG Mobile, gvSIG Online, IDE, spanish, training Tagged: 13as Jornadas gvSIG
Categories: OSGeo Planet

gvSIG Team: SIG aplicado a Gestión Municipal: Módulo 2 ‘Introducción a los Sistemas de Referencia’

OSGeo Planet - Thu, 2017-09-28 04:10

En este segundo módulo, el último teórico antes de empezar con la parte práctica, hablaremos de los Sistemas de Referencia y cómo podemos aplicarlos en un SIG para representar correctamente nuestros datos con información geográfica.

Previamente vamos a contestar a varias preguntas que nos habéis realizado relativas a este curso; esperamos así aclarar de forma general vuestras dudas. Al final del post tenéis el enlace al vídeo-tutorial del segundo módulo.

Preguntas frecuentes

– ¿Cómo inscribirme?

No es necesario realizar ninguna inscripción. Basta con ir siguiendo los distintos módulos que iremos publicando en el blog de gvSIG. Cada post incluirá un vídeo-tutorial, los 2 primeros son teóricos y a partir del tercero incluirán ejercicios prácticos.

– ¿Todo el curso es en línea?

– Sí, el curso es 100% on-line.

– ¿Puedo participar si soy de tal o cual país?

Por supuesto, el curso está abierto a cualquier persona, independientemente del país de origen. Para aquellos que no sean hispano-hablantes, y tengan dificultad para seguir el curso, informaros que en breve lo lanzaremos también en idioma inglés.

– ¿Dónde descargar el software?

A partir del tercer módulo, en el que se inicia la parte práctica, se darán las instrucciones necesarias para descargar y utilizar el software y datos necesarios para realizar los ejercicios.

– ¿Con qué frecuencia se publicarán los módulos?

Dos a la semana. Los lunes y jueves, de esta forma es mucho más fácil que podáis hacer el seguimiento.

– ¿Cuándo acaba el curso?

Al ritmo de 2 módulos por semana, estará finalizado a primeros de diciembre.

– ¿Hay que entregar ejercicios / prácticas?

No, los ejercicios correspondientes a cada módulo los podéis hacer a vuestro ritmo y no hay que entregar nada. Es al final del curso, y sólo para aquellos que quieran optar al Certificado, cuando se pedirá realizar un prueba de evaluación que habrá que entregar.

– ¿Puedo recibir alertas en mi email de nuevos post publicados?

Sí, en la parte inferior derecha del blog verás un apartado titulado “gvSIG blog on your mail”, donde se indica “Write your email address to subscribe to this blog, and receive notifications on new messages by mail.”

Ahí puedes inscribirte indicando tu email y recibirás un correo por cada nuevo post publicado (no sólo los del curso).

– ¿Qué habrá que hacer para obtener el certificado y cuál será su coste?

La información completa se dará junto a los últimos módulos del curso. Habrá que realizar un determinado y completo ejercicio que valide los conocimientos adquiridos durante el curso y que evaluará un tutor. El coste de la certificación será el mínimo para cubrir los gastos relativos a la evaluación y certificación y será de 30 €. De este modo esperamos que sea accesible al mayor número de personas posible.

El certificado será emitido por la Asociación gvSIG e incluirá toda la información relativa a los contenidos formativos adquiridos.

– ¿Dónde puedo realizar consultas sobre el curso o remitir problemas que tenga con el software?

Lo puedes hacer a través de la lista de usuarios. Es una lista de usuarios de gvSIG, no sólo de alumnos del curso, con lo que tiene un alto volumen de consultas por día. Cada persona inscrita puede preguntar dudas y contestarlas, siendo un soporte colaborativo y comunitario.

A la lista de usuarios podéis apuntaros en este enlace:

http://listserv.gva.es/mailman/listinfo/gvsig_usuarios

Es recomendable leer este post con las instrucciones tanto de inscripción a la lista de usuarios (incluyendo cómo configurar la inscripción para no recibir todos los mensajes de la lista) como de reporte de problemas:

https://blog.gvsig.org/2015/06/15/que-hacer-cuando-sale-un-error-en-gvsig/

Módulo 2: Introducción a los Sistemas de Referencia

Este segundo módulo, al igual que el primero, es eminentemente teórico. Os dejamos con el vídeo-tutorial:

Post relacionados:

Módulo 1: Diferencias entre SIG y CAD


Filed under: gvSIG Desktop, spanish Tagged: curso, gestión municipal, Proyecciones, sig, sistemas de coordenadas, Sistemas de referencia
Categories: OSGeo Planet

GeoTools Team: GeoTools 18-RC1 Released

OSGeo Planet - Wed, 2017-09-27 23:35
The GeoTools team is pleased to announce the release of GeoTools 18-RC1:This release is also available from our Maven repository.

Thanks to everyone who took part in the code-freeze, monthly bug stomp, or directly making the release. This release is made in conjunction with GeoServer 2.12-RC1.

As a release-candidate, 18-RC1 is not intended for production systems, however the API is stable and we invite everyone to try upgrading their applications, report any issues, and help out with the final round of testing and fixing:
Highlights from our issue tracker release-notes:
  • GeoPackage store does not support spatial indexes
  • StreamingRenderer can result in map with white lines at tile borders against a heterogeneous CRS mosaic
  • NetCDFImageReader may throw classCastException if underlying dimensions and axes aren't sorted at the same way
  • ImageMosaic cached index does not support filtering and sorting at the same time
  • Increase ProjectionHandler robustness when the target geometry just touches the valid area
For more information see past release notes (18-RC1 | 18-beta).
Categories: OSGeo Planet

gvSIG Team: Disponible el programa de las Jornadas gvSIG México 2017

OSGeo Planet - Wed, 2017-09-27 11:52

Ya está disponible el programa de las próximas Jornadas gvSIG México, que tendrán lugar en la Facultad de Ciencias de la Tierra y el Espacio, Universidad Autónoma de Sinaloa (Culiacán, Sinaloa, México) los días 5 y 6 de octubre de 2017.  El programa completo está disponible en http://geodesia.uas.edu.mx/gvsig/wp-content/uploads/2017/09/PROGRAMA.pdf

y los horarios de los talleres en http://geodesia.uas.edu.mx/gvsig/wp-content/uploads/2017/09/Horarios-Talleres.pdf

Por otro lado, sigue abierta la inscripción, tanto para las jornadas: http://geodesia.uas.edu.mx/gvsig/registro/

como para los talleres: http://geodesia.uas.edu.mx/gvsig/tregistro/


Filed under: gvSIG Desktop
Categories: OSGeo Planet

gvSIG Team: Workshop at 13th International gvSIG Conference: Hydro-geomorphological Modelling in gvSIG with the JGrasstools plugins

OSGeo Planet - Wed, 2017-09-27 09:53

During the next 13th International gvSIG Conference there will be a workshop about “Hydro-geomorphological Modelling in gvSIG with the JGrasstools plugins” in English. It will take place in October 19th.

Introduction

The climate change and the recent extreme events occured all over the world draw again the attention to the natural hazards both for prevention and for management aspects. In this context, environmental modelling can help in mapping hazards and risks zones and to support decision makers in building functional infrastructures with low environment impact.

In the context of modelling natural hazards hydro-geomorphology analysis is a key aspect. In the last decades many researchers tried to extract useful information from digital data and in particular from Digital Terrain Models (DTM) with the development of ad-hoc algorithms and tools. In the meanwhile the data availability increased and high precision DTM are available almost all over the world.

There are many possibilities to analise natural hazards and to define hazard and risks zones as required by the national and international directives. The algorithms contained in the JGrassTools library are the result of more than 10 years of research, development and real application of people from different research institutes and professionals working in the field of natural hazards. The JGrassTools library contains tools for data management (raster, vector and point cloud), data collection in the field, and environmental modelling in particular related to hillslope stability and flooding.

Target audience

The expected participant is the average GIS user that wants to approach new tools for environmental modelling related in particular to flooding hazard. The user can be a professional, a person of the public administration or even a decision maker who has average knowledge of GIS and GIS data and wants to approach this topic.

What will be shown?

The workshop will cover the main aspects of the hydro-geomorphological analysis of a river basin starting from a DTM. The aim is to evaluate the maximum discharge that can occur in a section for different return times following the rules of the EU Flood Directive. Some generic geomorphological analysis on the DTM will be performed that will be used to delineate the stream network and the watershed closed at the desired section, i.e. the flow directions, the total contributing areas and the slopes.

The last step will be the evaluation of the maximum discharges using the semi distributed model Peakflow (Rigon et al., 2011) integrated in the JGrassTools library.

Software and data

The last version of gvSIG will be used and the workshop will start with the installation of the JGrassTools plugins for all the participants both for the local available PC and for the private PC if there will be some.

During the next weeks the link to download the cartography will be available at this post for the participants that will carry their own laptop. The data will be loaded directly on the local PC.

How to subscribe?

To attend the workshop it is necessary to subscribe first to the conference and then to the workshop. All the workshops, as the rest of the conference, are free of charge, but the number of participants is limited.

The workshop will be at the Escuela Técnica Superior de Ingeniería Geodésica, Cartográfica y Topográfica (UPV), and there will be PC ready with software and data. If desired it is possible also to use private laptops.

The full program of the conference is available here:
http://www.gvsig.com/en/events/gvsig-conference/13th-international-gvsig-conference/program

Registration to the conference:
http://www.gvsig.com/en/events/gvsig-conference/13th-international-gvsig-conference/registration

The registration to the workshops will open on the 28th of September through this link:
http://www.gvsig.com/en/events/gvsig-conference/13th-international-gvsig-conference/workshop-registration


Filed under: english, events, gvSIG Desktop, training Tagged: 13th gvSIG Conference, JGRASS, JGrassTools, workshop
Categories: OSGeo Planet

gvSIG Team: Octubre de Conferencias gvSIG

OSGeo Planet - Wed, 2017-09-27 08:21

Este mes de octubre viene plagado de eventos gvSIG. Os dejamos recopilada la información, para facilitar la localización de cada una de estas conferencias. Si puedes asistir a alguna de ellas, no dejes pasar la oportunidad…son gratuitas y podrás formarte en los múltiples talleres que se imparten, además de atender a interesantes ponencias relacionadas con la suite gvSIG y la geomática libre.

4as Jornadas gvSIG de México

Web del evento: http://geodesia.uas.edu.mx/gvsig/

La primera semana de octubre se celebran las 4as Jornadas gvSIG México en la Universidad Autónoma de Sinaloa.

4 conferencias magistrales y 17 ponencias confeccionan un programa al que se suman una decena de talleres.

9as Jornadas de Latinoamérica y Caribe de gvSIG

Web del evento: http://www.gvsig.com/en/eventos/jornadas-lac/2017

También durante la primera semana de octubre se celebran las 9as Jornadas de Latinoamérica y Caribe de gvSIG en la Universidad Federal de Santa Maria. Como sabéis estas jornadas son itinerantes y este año Brasil es el país anfitrión.

El programa de este año está compuesto por una decena de talleres y 15 ponencias.

13as Jornadas Internacionales de gvSIG

Web del evento: http://jornadas.gvsig.org/

Culminamos el “mes gvSIG” con las 13as Jornadas Internacionales de gvSIG, que tendrán lugar la tercera semana de octubre en la Universidad Politécnica de Valencia.

El programa está compuesto por una treintena de ponencias y 7 talleres.


Filed under: events, spanish Tagged: 13as Jornadas gvSIG, Brasil, Conferencias, jornadas, Jornadas gvSIG LAC, Jornadas LAC, LAC, México
Categories: OSGeo Planet

PostGIS Development: PostGIS 2.4.0rc3 Released

OSGeo Planet - Wed, 2017-09-27 00:00

The PostGIS development team is pleased to announce the release of PostGIS 2.4.0rc3. Best served with PostgreSQL 10rc1 and pgRouting 2.5.0. See the full list of changes in the news file.

This will be the final rc before we have our 2.4.0 release.

We encourage everyone to test and in particular package maintainers to ensure no surprises at final release time.

IMPORTANT NOTES

If you are upgrading from an existing PostGIS install, make sure after installing PostGIS binaries to do.

ALTER EXTENSION postgis UPDATE;

— if you have additional postgishy extensions below upgrade them too

ALTER EXTENSION postgis_sfcgal UPDATE; ALTER EXTENSION postgis_topology UPDATE; ALTER EXTENSION postgis_tiger_geocoder UPDATE; ALTER EXTENSION pgrouting UPDATE; Continue Reading by clicking title hyperlink ..
Categories: OSGeo Planet

From GIS to Remote Sensing: Road to the Semi-Automatic Classification Plugin 6 (Greenbelt): the SCP dock

OSGeo Planet - Tue, 2017-09-26 16:37
As I wrote this post, QGIS 3 is under development and it should be released in December 2017.
This important QGIS update brings many new features; in particular, the upgrade to Python 3 and QT 5 imply that all the plugins must be updated to these changes.

I am updating the Semi-Automatic Classification Plugin (SCP) to version 6 (codename Greenbelt) which will work with QGIS 3 only (not QGIS 2 because of the API changes).
The codename Greenbelt (Maryland, USA) is the location of the NASA’s Goddard Space Flight Center that had a key role in Landsat satellite development and will lead the Landsat 9 development of the space and flight segments (Landsat 9 to be launched in 2020).

I have already released an SCP experimental version 5.99 that runs in QGIS 3. However, the QGIS 3 development is still going on and other API breaks could cause issues in SCP. Therefore, in order to focus on plugin development, I won't update the plugin repository until the feature freeze of QGIS 3.
The final SCP version 6 will probably be ready by December 2017, in line with the QGIS 3 release.

I am willing to improve the functionalities of SCP with this new version 6, and I'll try to periodically post the development progress.
First, I have updated the SCP dock in order to be more productive and user friendly.

SCP dock
Categories: OSGeo Planet

gvSIG Team: 9ª Jornada Latino Americana e do Caribe de gvSIG: Programa disponível

OSGeo Planet - Tue, 2017-09-26 14:09

Já está disponível o programa da 9ª Jornada Latino Americana e do Caribe de gvSIG que será realizada de 4 a 6 de outubro de 2017 no campus da Universidade Federal de Santa Maria, na cidade de Santa Maria, Rio Grande do Sul-Brasil.

As oficinas serão de temáticas distintas, tanto para usuários como para desenvolvedores(programadores iniciantes), por exemplo de Introdução a gvSIG, Introdução a Scripting com gvSIG ou Uso de gvSIG para Agricultura de Precisão entre outros.

Os interessados em assistir a Jornada deverá fazer sua inscrição na web do evento. A participação é gratuita, e com inscrições limitadas, assim recomendamos fazê-la o mais rápido possível.

Te esperamos


Filed under: community, events, portuguese, training Tagged: 9as Jornadas LAC
Categories: OSGeo Planet
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