GRASS-Wiki - User contributions [en]

Talk:GRASS Community Sprint Prague 2013

2013-07-16T13:09:34Z

⚠️Tereza:

== Participant comments and plans ==

...

=== Joint efforts ===

(see [[GRASS_Community_Sprint_Prague_2013#In_person|here]] for participants' names)

* Creating 3D vector test data (for 3D interpolation) - ES, SG, MN
* Added [[Image_processing#General_introduction|General introduction]] (based on manual of G7/i.vi by Yann Chemin) - MN, MN, YC
* Discussions on Bundle Block Adjustments - YC, ST
* wxGUI refactoring - AP, VP
* Presentation of state of image processing in GRASS 7 - YC, MN
* Presentation of state of Temporal GIS Algebra in GRASS 7 - SG, TL
* ISIS-GRASS bridge port to GRASS7 - YC, VP, ML, MN
* Discussions on potential integration of Rasdaman software as raster data backend - SG, YC, and Jachym (virtually)
* Presentation on vector conflation - TF with discussion
* ...

=== Individual Reports ===

Here the (very incomplete) list of individual efforts:

==== Martin Landa ====

* Community Sprint organization
* OSGeo4W GRASS 6.4.3RC4 package published
* Fix {{cmd|v.pack|version=70}} on MS Windows, {{rev|57117}}
* Fix {{cmd|v.unpack|version=70}} on MS Windows, {{rev|57121}}

==== Markus Neteler ====

* Community Sprint Budget management (available on request)
* r.wf Addon fixed: {{rev|57075}} and {{rev|57076}}
* r.ipso Addon fixed: {{rev|57077}}
* Draft Doxygen'iation of the CDHC [http://grass.osgeo.org/programming7/cdhclib.html library for testing normality & exponentiality]
* Added [[Image_processing#General_introduction|General introduction]] (based on manual of G7/i.vi by Yann Chemin) - MN, MN, YC

==== Yann Chemin ====

* ISIS-GRASS bridge port to GRASS7 (with Vaclav, Martin and MarkusN)
If ISIS (http://isis.astrogeology.usgs.gov) is installed,
GRASS will load it in the background,
the banner and prompt will change to ISIS-GRASS.
Both ISIS and GRASS commands are available at the ISIS-GRASS prompt.

* g.isis3mt exports a ISIS3 template from current location, ported into GRASS 7

* Tested direct access of ISIS3 data into G7, r.in.gdal and r.external both work (tested Mars MOLA and Dawn test_datasets)

* Discussed with Soeren, Vaclav and Jachym about Rasdaman, Voxel lib and Raster handling in Grass 8, we agreed on investigating handling, interfaces and performances.

* Went through the Bundle Block Adjustment files with Stepan

* Landsat 7 chain processing using pyGRASS goes in testing mode with MarkusN and Soeren

* Worked more on r.crater

==== Margherita Di Leo ====

* r.basin ported to G7 {{rev|57091}}, {{rev|57096}}
* r.basin html fixed {{rev|57110}}

==== Markus Metz ====

* r.stream.* modules: clean up before moving from addons to trunk {{rev|57151}}, {{rev|57152}}
* GRASS wiki image processing update (MM, MN, YC)

==== Anne Ghisla aka aghisla ====

* Google Summer of Code live discussions
* v.krige fixed in G7 {{rev|57146}} and following

==== Sören Gebbert aka huhabla ====

* Google Summer of Code Temporal Algebra presentation and implementation support
* Discussion of RASDAMAN GRASS integration
* Discussion and implementation of the new temporal module t.rast.accumulate and the use of a modified version of r.gdd (implemented by Markus Metz) instead of r.mapcalc
* Writing and updating of many temporal modules manual pages

==== Stepan Turek ====

* Working on Google Summer of Code project
* Went through the Bundle Block Adjustment files with Yann

==== Thomas Leppelt ====

* Working on GSoC Project: Temporal Algebra
* Implementing functions for if-statements in the temporal algebra

==== Milena Nowotarska ====

* GUI translation to Polish

==== Anna Petrasova ====

* attempts to compile wxPython with wxGTK3/Broadway (HTML5) backend, so far not successfull, see [http://wxpython-users.1045709.n5.nabble.com/wxPython-with-wxGTK3-Broadway-HTML5-based-backend-td5718030.html discussion]
* wxGUI refactoring
* wxGUI design
* toolboxes: discussion, adding <addons> tag

==== Vaclav Petras ====

* compiling wxPython with wxGTK3/Broadway with Anna
* discussion of Rasdaman GRASS integration
* wxGUI refactoring
* wxGUI design
* toolboxes: discussion
* ISIS-GRASS bridge port to GRASS7 with Yann

==== Eva Stopková ====
* debug of plotting variogram output in module v.kriging (not published yet)
* discussion about kriging methods in GRASS GIS with Anne
* discussion about optimalization and testing modules (not published yet) v.kriging (2D/3D kriging) and v.nna (2D/3D Nearest Neighbour Analysis) with Marcus N. and Soeren G.
* improving and debugging other functions of module v.kriging
* numerical testing of v.kriging

==== Tereza Fiedlerová ====
* learning something about GRASS GIS vector modules
* discussion about own QGIS plugin and C++ library for vector conflation and its possible implementation to GRASS
* beginning to write C API for vector conflation library (needed for GRASS implementation)

== Video-conferencing options ==

Q: is Google Hangouts smartphones only?
: ''not sure, but I'm pretty sure you can get a web browser plugin for all major desktop OSs''

Q: do you have to be signed up with a Google+ social media account?
: ''in theory no, but in practice they strongly funnel you that way''

Q: is Jitsi on a desktop computer compatible with G+?
: ''at the text chat level, yes. video and voice via Google Talk, reported to work with Voice, not sure about video''

; [http://www.jitsi.org Jitsi]
: ''It is compatible with GoogleTalk instant messaging (and most other instant messaging including the XMPP RFC like Facebook; Skype is the notable one that it doesn't work with), not sure about GoogleTalk's voice calls, I'd give that a 80% chance of working.
: An interesting side-project Jisti offers its own work-alike free multi-person video chat for XMPP(Jabber compatibles) which is not limited to 10 people: [https://jitsi.org/Projects/JitsiVideobridge VideoBridge]. Given enough bandwidth and a modern desktop CPU acting as the bridge server, you can have someone in a G+ hangout share their desktop to pass through the other members of the video hangout.
: Also there's a functional alpha-release Android client.
: For Jitsi <-> Jitsi video you may need a valid XMPP account. Many (federated in a single grid) providers for that, so it doesn't matter much who. Jitsi run a simple registry at http://jit.si
: All quite interesting possiblies and the development is quite active -- but is it there yet? I'm not sure, probably a not far away "almost"; if so, perhaps we could run the bridge on Adhoc for a few days (can run as an unprivilidged user, needs Java 6, chat "host" user needs shell access to set magic pass word and get the assigned port numbers to plug into their client), or perhaps host it at fsv.cvut.cz? (i.e. locate it at the shortest hop to max number of participants using it) --HB''

GRASS Community Sprint Prague 2013

2013-06-05T09:14:13Z

⚠️Tereza:

{{toc|right}}
The GRASS GIS [[team]] will organize the '''4th GRASS Developer and Power User Meeting, aka 'GRASS GIS Community Sprint'''' from '''July 12 to July 18, 2013'''. The sprint is following the [http://geoinformatics.fsv.cvut.cz/gwiki/Geoinformatics_FCE_CTU_2013 Geoinformatics conference], 11-12 July 2013, Czech Technical University in {{wikipedia|Prague}}, {{wikipedia|Czech Republic}}.


'''Important dates:'''

* 11 (Thusday) - 12 (Friday) July 2013: [http://geoinformatics.fsv.cvut.cz/gwiki/Geoinformatics_FCE_CTU_2013 Geoinformatics conference]

* '''12 (Friday) - 18 (Thusday) July 2013: GRASS GIS Community Sprint''' @ [http://www.fsv.cvut.cz/ FCE CTU]

== Purpose ==

This fourth edition of the GRASS GIS Community Sprint 2013 is a great occasion for folks to support the development by actively contributing to the source code, manuals or likewise. The '''community''' sprint is a get-together for GRASS project members and supporters and related [http://www.osgeo.org OSGeo] projects to make decisions and tackle larger problems. For this meeting, we welcome people committed to improving the GRASS GIS project and the interfaces to [[QGIS GRASS Cookbook|QGIS]], [[GDAL]], [[PostGIS]], [[R statistics]], [[GRASS and Sextante|Sextante, gvSIG]], OGC Services (esp. [[WPS]]) and more. This includes developers, documenters, bug reporters, translators and others.

For this meeting, we welcome people committed to improving the GRASS GIS and related projects. This includes developers, document writers, wish and bug reporters, translators etc.

== Sponsors ==

We welcome '''financial contributions''' to support the meeting and we are looking for sponsors to cover costs such as meals or to help reducing travelling and accommodation expenses for GRASS developers with far arrival If you are interested to sponsor the GRASS Community Sprint, please read about

:::'''sponsoring the GRASS project at [http://grass.osgeo.org/donations http://grass.osgeo.org/donations]'''

For questions, please contact [[User:Neteler|Markus Neteler]] <tt><neteler at osgeo.org></tt>. Any surplus at the end of the event will be turned over to the GRASS GIS project.

This fourth GRASS Community Sprint is a great occasion for you to support the development of GRASS. With your contribution you'll enable more developers to meet. The community sprint is an important opportunity for the GRASS developers to discuss and collaboratively resolve bugs, plan the direction for the project and work on new features. Please see below for the more detailed agenda. The developers and contributors are donating their valuable time, so it would be great if in-kind funding can be made available from within the community to cover out-of-pocket expenses. All of the work that takes place at the community sprint will be directly contributed back into the GRASS project to the benefit of everyone who uses it.

=== Thanks to our sponsors ===

We are grateful for the support which we have received to organize this GRASS Community Sprint:


== Timing ==

'''When''': 12-18 July, 2013

Of course you are invited to join or leave the community sprint whenever you want.

'''Duration''': tbd

* Friday (12. July) is day of arrival
** First meeting in the afternoon (after the [http://geoinformatics.fsv.cvut.cz/gwiki/Geoinformatics_FCE_CTU_2013 Geoinformatics conference]) to define the agenda
* Saturday to Wednesday
** Full days
* Thursday (18. July) is day of departure
** Probably hacking for people with a flight later in the evening

== Venue ==
[[Image:logo_cvut.jpg|130px|left]]
Department of Mapping and Cartography 
[http://www.fsv.cvut.cz Faculty of Civil Engineering] 
[http://www.cvut.cz Czech Technical University in Prague], {{wikipedia|Czech Republic}} 
[http://geoinformatics.fsv.cvut.cz/gwiki/Room_B367 Room B367] 

'''[http://geoinformatics.fsv.cvut.cz/gwiki/Where_you_can_find_us Location & Transportations]'''

Prague has an international [http://www.prg.aero/en/ airport] and is also reachable by train, bus or car.

== Accommodation and Costs ==

Participants should plan for the following costs:

* The participation is free of charge
* Travel to Prague, variable depending on where you come from
* Accommodation and meals (with the donated sponsorship money we will try to cover some expenses of the participants)
'''Please note''': The currency in Czech Republic is {{wikipedia|Czech crown}} (CZK, koruna, Kč). 100 Czech crowns are about 4 Euros (see [http://www.cnb.cz/en/financial_markets/foreign_exchange_market/exchange_rate_fixing/daily.jsp current rates]).

'''[http://geoinformatics.fsv.cvut.cz/gwiki/Accommodation_in_Prague Accommodation in Prague]'''

:* [http://geoinformatics.fsv.cvut.cz/gwiki/Accommodation_in_Prague#Masarykova_Kolej_Hotel Masarykova Kolej Hotel]
:* [http://geoinformatics.fsv.cvut.cz/gwiki/Accommodation_in_Prague#Hotel_DAP Hotel DAP]
:* [http://geoinformatics.fsv.cvut.cz/gwiki/Accommodation_in_Prague#Hotel_Krystal Hotel Krystal]
:* [http://geoinformatics.fsv.cvut.cz/gwiki/Accommodation_in_Prague#Pension_Hanspaulka Pension Hanspaulka]
:* [http://geoinformatics.fsv.cvut.cz/gwiki/Accommodation_in_Prague#Hotel_Silenzio Hotel Silenzio]
:* [http://geoinformatics.fsv.cvut.cz/gwiki/Accommodation_in_Prague#Student_hostels_.28CTU.29 Student hostels (CTU)]
:* Special offer: ''sleeping for free in the kindergarten'' (30min by city urban mass transportation from the university campus, sleeping bag required, kitchen and WC available, no showers, in working days available only from 8 p.m. to 8 a.m.), contact [[User:Landa|Martin Landa]] for details
:* See also http://www.hotel.cz/praha-6/accommodation/

Please let us know your time of arrival and leaving, so we can book for the accommodations and organize the logistics.

Financial support: (partial) travel grants can be payed upon request thanks to our sponsors!

== Weather and Common Item Prices ==

* In July the weather in Prague is usually warm ([http://www.prague-spot.com/climate 20 or more degrees by day])
* A espresso coffee is about 25 CZK (1 euro), a beer (half of liter) in a common pub is around 30 CZK (1 euro 20 cents), can be more in special pubs. In Prague you can have a full meal (see {{wikipedia|Czech cuisine}} for details) for 100 - 150 CZK (4 - 6 euros), but beware of tourist restaurants, the price can easily rise. It's quite easy to find in Prague also Italian or Chinese restaurants.

== Agenda - What we plan to do ==

'''Note:''' The program is generally open for your ideas. Please write an email to the [http://lists.osgeo.org/mailman/listinfo/grass-dev GRASS developer list] to discuss your contribution.

Further details about the action items you '''find [[Talk:GRASS Community Sprint Prague 2013|here]]''' and below. Topics cover non-technical, semi-technical, and technical issues.

=== Timeline ===

==== Friday, 12 July ====
* ''(time to be defined)'': Kick-off in the Faculty of Civil Engineering, building B, room 367 (3rd floor, [http://geoinformatics.fsv.cvut.cz/gwiki/Where_you_can_find_us map])
* Participants presentation


==== Saturday, 13 July ====

* 9:00-evening


==== Sunday, 14 July ====

* 9:00-evening


==== Monday, 15 July ====

* 9:00-evening


==== Tuesday, 16 July ====

* 9:00-evening


==== Wednesday, 17 July ====

* 9:00-evening
* '''30 YEARS OF GRASS GIS''' party!!

==== Thursday, 18 July ====

* Last meeting
* Farewell and have a good trip home

== Participation ==

We are planning for an attendance of 20 people (i.e., coding places) but of course you are welcome to join us and bring new ideas with you: we'll make more places available. Please add your name here or contact [[User:Landa|Martin Landa]] <tt><landa.martin at gmail.com></tt>:

=== In person ===

{|class="wikitable sortable" border="2" cellspacing="0" cellpadding="4" rules="all" style="margin:1em 1em 1em 0; border:solid 1px #AAAAAA; border-collapse:collapse; background-color:#edf9c7; font-size:95%; empty-cells:show;"
!width=50px|'''Number'''
!width=130px|'''Participant '''
!width=100px|'''Country'''
!width=100px|'''Arrival'''
!width=100px|'''Departure'''
!'''Topic'''
!width=75px|'''T-Shirt'''
!'''Notes'''
|-
|1
|[[User:Landa|Martin Landa]]
|Czech Republic
| July 12
| July 18
| Toolbox concept, vector engine in GRASS 7, wxGUI, PostGIS Topology support, 3D topology
| L
|
|-
|2
| [[User:Neteler|Markus Neteler]]
| Italy
| July 12
| July 18
| Varia
| M
|
|-
|3
| [[User:Helena|Helena Mitasova]]
| USA
| July 16 pm
| July 18
| Data exchange, metadata, GRASS7 data sets, temporal data
| M
|
|-
|4
| [[User:benducke|Benjamin Ducke]]
| Germany
| July 15 (+/- 1)
| July 18 (+/- 1)
| 3D interpolation in GRASS 7 (GSoC), misc.
| M
|
|-
|5
| [[User:ychemin|Yann Chemin]]
| France
| July 11 (+/- 1)
| July 16 (pm)
| image processing, planetary integration
| XXL
|
|-
|6
| [[User:huhabla|Sören Gebbert]]
| Germany
| July 12
| July 16 (pm)
| GRASS GIS Temporal Framework, Temporal GIS Algebra, WPS, visualization and animation of spatio-temporal data
| XL
|
|-
|7
| [[User:annakrat|Anna Petrasova]]
| Czech Republic
| July 11
| July 18
| wxGUI (toolboxes, refactoring, wxNviz, animations)
| M
|
|-
|8
| [[User:wenzeslaus|Vaclav Petras]]
| Czech Republic
| July 11
| July 18
| wxGUI (toolboxes, refactoring), Programmer's manual Doxygen issues
| S
|
|-
|9
| [[User:turek|Štěpán Turek]]
| Czech Republic
| July 11
| July 18
| Scatter Plot, Bundle Adjustment, Turns in vnet.*
| L
|
|-
|10
| [[User:mmetz|Markus Metz]]
| Italy
| July 12
| July 18
| vector engine in GRASS 7, image processing, orthorectification
| L
|
|-
|11
| [[User:mastho|Thomas Leppelt]]
| Germany
| July 12
| July 16
| Temporal GIS Algebra
| M
|
|-
|12
| [[User:Tereza|Tereza Fiedlerová]]
| Czech Republic
| July 11
| July 18
| vector-to-vector conflation
| S
|
|-
|13
| ''and you ...''
|
|
|
|
|
|
|-
|}

=== Via IRC chat or hangout===

: [irc://freenode/grass #grass] on Freenode
: [http://www.google.com/+/learnmore/hangouts/ G+ hangout]
:: (to be investigated; smartphones only? (''not sure, but I don't think so'')
:: do you have to be signed up with a Google+ social media account?
:: is Jitsi on a desktop computer compatible? --''not sure, but Jisti offers its own work-alike free multi-person video chat for XMPP(Jabber compatibles) which is not limited to 10 people: [https://jitsi.org/Projects/JitsiVideobridge VideoBridge]'')

For details, see [[IRC]]

Please add yourself here below (please add also your gmail account for G+ hangout):

* [[User:Landa|Martin Landa]], [http://www.timeanddate.com/worldclock/city.html?n=204 timezone]. Gmail is <landa.martin@> expanded
* ...

'''Timing of hangout meetings:'''

* Date, time: [http://doodle.com/f2qfqixqeqkkmskh doodle-poll]

=== Collaborative document scratching ===

(Power) users from all over the world are kindly invited to assist with testing of new and existing functionality. To collect results and notes, we set up an interactive, collaborative editing tool which works in real-time:

Please check http://titanpad.com/I51nq1SrNc

== Individual Preparation ==

* Bring your own computer
* Bring {{wikipedia|AC adapter|power connector adapter}} if needed (Czech Republic: 230V, 50Hz, {{wikipedia|File:Euro-Flachstecker_2.jpg|Type C Europlugs}} are common and also {{wikipedia|File:French_plug_and_socket.jpg|Type E}})
* Install subversion and the compiler tools, and come with a working GRASS development environment if possible.

== Broadcast & Video ==

During the event :)

== Photos ==

Also during the event :)

== FAQ ==

* '''How was it last time?'''
** Very nice, see [[GRASS Community Sprint Genova 2013]]!
* ''Is the GRASS Community Sprint just a coding event?''
** It is mainly a coding and documentation event. It is a working session for people who are already participants in the GRASS project and/or are committed to improving the GRASS project.
** On demand we can do some presentations of current working GRASS implementation and new upcoming features to spread the idea of Open Source GIS software
* ''Is the GRASS Community Sprint for developers only?''
** No: anybody can help, with testing, checking out bugs and fixes, documentation and more.
* ''Where can I get help and more information about the community sprint?''
** Contact [[User:Landa|Martin Landa]] <tt><landa.martin at gmail.com></tt>

== Press Release ==

''(to be done)''


[[Category: Workshops]]