Feed aggregator

gvSIG Team: “Learning scripting on gvSIG in half an hour” videotutorial available

Planet OSGeo feeds - Wed, 03/21/2018 - 15:50

During the 3rd gvSIG Festival there has been a presentation about learning scripting on gvSIG in a few minutes.

With this video, any user without a developer profile can learn to create their own scripts in gvSIG, where a lot of customized tools can be added to the application.

If you develop any script and you want to share it with the community, or if you have any doubt when you create your scripts, you can send the question to the mailing list.

The video of this presentation is available here:

gvSIG Team: Recording of ‘gvSIG Crime: Open source GIS for criminology’ presentation at the 3rd gvSIG Festival available

Planet OSGeo feeds - Wed, 03/21/2018 - 13:41

The recording of the video of the ‘gvSIG Crime: Open source GIS for criminology‘ presentation, given at the 3rd gvSIG Festival, is now available.

At this video we show what this new product of the gvSIG Association is, where we explain its components:

  • gvSIG Desktop: Geographic Information System for editing, 3D analysis, geoprocessing, maps, etc
  • gvSIG Online: Integral platform for Spatial Data Infrastructure (SDI) implementation.
  • Lime Survey: application to make surveys.
  • gvSIG Mobile: Mobile application for Android to gather field data

If you have any question about the presentation you can use the gvSIG mailing lists, and if you are interested in implementing gvSIG Crime in your organization you can contact info@gvsig.com

The video is available here:

gvSIG Team: Recording of ‘Geostatistics with R and gvSIG’ presentation at the 3rd gvSIG Festival available

Planet OSGeo feeds - Wed, 03/21/2018 - 11:40

The recording of the video of the ‘Geostatistics with R and gvSIG‘ presentation, given at the 3rd gvSIG Festival, is now available.

At this video you can watch how to manage R library from gvSIG Desktop to get interesting information through statistics.

If you have any question about the presentation you can use the gvSIG mailing lists.

The video is available here:

Fernando Quadro: Curso DBA PostGIS – Turma 3

Planet OSGeo feeds - Wed, 03/21/2018 - 11:30

Prezado leitor,

Você tem interesse em aprender a trabalhar com banco de dados espacial, e possui conhecimentos em algum banco de dados? Então esta é a sua oportunidade!

A GEOCURSOS acaba de lançar a Turma 3 do Curso DBA PostGIS. Este curso online oferece uma visão completa que vai desde uma revisão sobre o PostgreSQL até tópicos avançados do PostGIS, apresentando como trabalhar em sua totalidade com esta poderosa extensão espacial do banco PostgreSQL.

Este curso é formado pelos nossos cursos PostGIS Básico (16 horas online) + PostGIS Avançado (20 horas online) e acontecerá entre os dias 02 de junho e 04 de agosto (aos sábados).

Se você fosse comprar os cursos separadamente sairia pelo valor de R$ 900,00. Porém o curso esta com uma super promoção, e está saindo por apenas R$ 599,00.

Para maiores informações e para ver a ementa completa do curso, acesse:

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

GIS for Thought: QGIS Select Within Plugin 0.4

Planet OSGeo feeds - Wed, 03/21/2018 - 10:00

Version 0.4 brings a couple of new features to the Select Within plugin.

Most importantly it now supports mostly within and percentage within selections.

Also introduced is Pole of Inaccessibility within selections. As implemented in the QGIS core with the Polylabel algorithm: https://github.com/mapbox/polylabel

Point within selection examples. Centroid (red), Point on Surface (green), and Pole of Inaccessibility (blue):

Examples:

Centroid within:

Point on Surface within:

Pole of Inaccessibility within (1.0 tolerance):

50% within:

75% within:

Code:
GitHub Code Base

Issues and bug tracker:
GitHub Issues

Fernando Quadro: Lançado o GeoServer 2.13.0

Planet OSGeo feeds - Tue, 03/20/2018 - 20:13

A equipe de desenvolvimento do GeoServer anunciou hoje em seu blog o lançamento da sua verão 2.13.0. Nesta versão, além de correções de bugs, foram adicionados os seguintes novos recursos:

– Workspaces isolados
– GeoWebCache REST API
– Melhorias na interface do usuário
– Melhorias no desempenho do GeoPackage
– Suporte para mais tipos de dados do PostGIS
– Melhor controle de posição do rótuo na renderização de mapas
– Remoção dos instaladores para OS X
– Entre outras

Fonte: GeoServer Blog

Fernando Quadro: Curso de GeoServer em Maio

Planet OSGeo feeds - Tue, 03/20/2018 - 19:50

Caros leitores,

Quero convidá-los a participarem do Curso Online de GeoServer que estarei ministrando pela GEOCURSOS. O objetivo do curso é que você aprenda a disponibilizar, compartilhar e editar dados geográficos na internet com o GeoServer.

No curso serão abordados tópicos como: configuração de dados, criação de estilo com SLD, padrões OGC, interface administrativa (web), visualização cartográfica com OpenLayers, REST API, Segurança, entre outros.

O curso ocorrerá entre os dias 15 e 24 de maio (terças, quartas e quintas) das 20:00 as 22:00 (horário de Brasília).

Aqueles que poderem divulgar para seus contatos, agradeço. Quem quiser saber mais informações sobre o curso, pode obtê-las no site do curso (http://www.geocursos.com.br/geoserver), twitter (http://twitter.com/geo_cursos) e pelo facebook (http://www.facebook.com/geocursosbr).

gvSIG Team: Livro gratuito: “Aprendendo SIG com Game of Thrones”

Planet OSGeo feeds - Tue, 03/20/2018 - 16:53

Talvez você que gostaria de aprender a trabalhar com um Sistema de Informações Geográficas e não sabia por onde começar… Aproveitando o fato de que a série (e os livros) “Game of Thrones” está em evidência na mídia, recomendamos que você faça uso do livro que estamos disponibilizando neste momento: “Aprendendo SIG com Game of Thrones”.

Este livro é uma compilação de uma série de artigos que foram publicados originalmente no blog oficial do gvSIG (em espanhol e em inglês), e que foram traduzidos para o português por mim (com a devida autorização, é claro). O objetivo é que qualquer pessoa, sem conhecimentos prévios e através de uma série de exercícios práticos, aprenda a trabalhar com um SIG de uma forma leve e divertida.

Todo o material necessário para seguir o curso está disponibilizado de forma livre e gratuita, tanto o software gvSIG Desktop – um SIG livre utilizado em mais de 160 países – como os dados (os links para download estão no livro), e este tutorial está distribuído sob licença Creative Commons.

No final do livro foram adicionados uma série de links para quem quiser se aprofundar na aprendizagem do trabalho com Sistemas de Informações Geográficas.

O livro pode ser baixado em: http://downloads.gvsig.org/download/documents/books/Livro_gvSIG_GoT_pt-BR.pdf

Faça um bom uso!

Observação: se você não conseguiu acompanhar a série de artigos traduzidos, aqui estão os links para o material:

gvSIG Team: Plugin para la integración entre gvSIG Mobile y gvSIG Desktop disponible

Planet OSGeo feeds - Tue, 03/20/2018 - 14:10

Ya está disponible para instalar sobre gvSIG Desktop 2.4 el plugin que permite integrar gvSIG Mobile y gvSIG Desktop.

Este plugin incluye una nueva funcionalidad que nos permite generar la base cartográfica para gvSIG Mobile desde Vistas de gvSIG Deskop. Por otro lado nos permite también cargar directamente en gvSIG Desktop un proyecto realizado en gvSIG Mobile, incluyendo los creados con un formulario personalizado, imágenes, etc.

gvSIG Mobile es una aplicación para la toma de datos en campo disponible en la Play Store de Google.

Para descargar este plugin se debe acceder al Administrador de complementos (menú Herramientas), y seleccionar la opción de “Instalación por URL”, conectando a la URL por defecto. En la siguiente ventana seleccionaremos en el listado de la izquierda la opción “Mobile”, y marcaremos el único plugin disponible. Aceptaremos el resto de ventanas (en caso de no tener el plugin base nos avisará de que lo va a instalar), y una vez le damos a “Terminar” debemos de reiniciar gvSIG para que los cambios tengan efecto.

Una vez abierto gvSIG ya podemos acceder al menú “HMachine”, donde tendremos acceso al nuevo submenú de gvSIG Mobile. También tendremos en la ventana de “Añadir capa” de las Vistas una nueva pestaña que nos permitirá cargar proyectos de gvSIG Mobile.

Durante el 3er gvSIG Festival se dará una ponencia sobre el manejo de este nuevo plugin. Dicha ponencia estará disponible en el apartado de “Comunicaciones” de la web de dicho evento a partir del 23 de marzo de 2018.

gvSIG Team: Plugin for gvSIG Desktop and gvSIG Mobile integration is now available

Planet OSGeo feeds - Tue, 03/20/2018 - 14:01

The plugin that allow us to integrate gvSIG Mobile and gvSIG Desktop is now available to be installed on gvSIG Desktop 2.4.

This plugin includes a new functionality that allows to generate the base cartography for gvSIG Mobile from a gvSIG Desktop View. In addition, we will be able to load a project made in gvSIG Mobile directly in gvSIG Desktop, including the elements created with a customized form, images, etc.

gvSIG Mobile is an application for data field gathering available in the Google Play Store.

To download this plugin on gvSIG Desktop you have to open the “Add-ons manager” (from “Tools” menu) and select the “Installation by URL” option, connecting to the URL by default. At the next window you will select “Mobile” option at the list at the left side, and you will mark the only plugin available. Then you will accept the rest of the windows (if you didn’t have the base plugin it will be installed too) and after finishing you must restart gvSIG so that the changes have an effect.

Once gvSIG Desktop is opened, you can access to the “HMachine” menu, where you will find the new submenu with all the options available, and a new tab will be available in the “Add layer” window to load a gvSIG Mobile project.

During the 3rd gvSIG Festival there will be a presentation where the gvSIG Mobile plugin for gvSIG Desktop will be shown. It will be available from the “Communications” section at the event website from March 23rd.

pycsw Team: pycsw 2.2.0 released

Planet OSGeo feeds - Tue, 03/20/2018 - 11:08

The pycsw team announces the release of pycsw 2.2.0.

The 2.2.0 release adds WMS 1.3.0 and WPS process harvesting as well as plugin support enhancements.

Source and binary downloads:

The source code is available at:

http://pycsw.org/download

Version 2.2.0 (2018-03-20):

[Bulleted list of enhancements / bug fixes]

  • Support overriding PYCSW_ROOT via environment variable
  • handle malformed basic service options
  • support Python import for plugins
  • support WMS 1.3.0 harvesting
  • implement CQL to Filter transforms
  • implement WPS process harvesting
  • fix CQL literals with spaces
  • include dct:alternative in CSW3 full output
  • update testing framework to py.test
  • implement OGC filter parsing as Python dict for easy parsing by repository plugins
  • do not silence exceptions on custom plugins
  • support CQL WKT ENVELOPE syntax
  • check forwarded ip address when pycsw is behind a proxy
  • add official Docker implementation
  • fix CSW service / version support (optional in 3.0.0)
  • fix CSW 3 GetRecords POST handling

Testers and developers are welcome.

We would like to thank OSGeo and the 2018 Bonn Code Sprint organizers and sponsors for their support.

The pycsw developer team. http://pycsw.org/

GeoServer Team: GeoServer 2.13.0 released

Planet OSGeo feeds - Tue, 03/20/2018 - 09:32

We are happy to announce the release of GeoServer 2.13.0. Downloads are available (zipwar, and exe) along with docs and extensions.

This is a release candidate of GeoServer made in conjunction with GeoTools 19.0.

Isolated Workspaces

The concept of an “Isolated Workspaces” has been added to GeoServer, to allow for reusing a namespace among multiple workspaces. In particular, an isolated workspace allows reuse of a namespace already used by another workspace, but its resources (layers, styles, etc …) can only be retrieved when using that workspace’s virtual services and will only show up in those virtual service capabilities documents.

When reusing a namespace among workspaces, exactly one of those must be non-isolated, and the rest must be isolated; i.e. isolated workspaces have no restrictions in namespaces usage but the existing restrictions still apply for non isolated workspaces.

This is particularly useful for those publishing complex schemas for INSPIRE compliance. For more details, refer to the original proposal.

GeoWebCache REST API

Two new endpoints have been added to the GeoWebCache REST API:

  • /gwc/rest/blobstores:
    • GET /gwc/rest/blobstores for a list of the blobstores
    • GET /gwc/rest/blobstores/{blobStoreName} for details about a single blobstore
    • PUT /gwc/rest/blobstores/{blobStoreName} to create or update a blobstore
    • DELETE /gwc/rest/blobstores/{blobStoreName} to remove a blobstore
  • /gwc/rest/gridsets:
    • GET /gwc/rest/gridsets for a list of the gridsets
    • GET /gwc/rest/gridsets/{gridSetName} for details about a single gridset
    • PUT /gwc/rest/gridsets/{gridSetName} to create or update a gridset
    • DELETE /gwc/rest/gridsets/{gridSetName} to remove a gridset

API docs for these endpoints will be added to the GeoServer documentation shortly. Until then, the request body syntax for PUT requests closely matched the equivalent structures in geowebcache.xml: BlobStores and GridSets.

The ArcGISCache backed layers are now also configurable via the REST API.

This release sees a major reworking of the configuration system in GeoWebCache that will allow for plugging in alternate configuration persistence mechanisms in future. While these changes should be largely invisible to users, it is a huge update that impacts all of GeoWebCache. However, due to these changes, we ask that you please test the embedded GeoWebCache.

UI Improvements

Entering in URLs for data files has been improved with autocomplete – now GeoServer will scan the path that has already been typed, and suggest existing files within that path.

In addition, autocomplete support has been added to a number of dropdowns which contain a long list of values, such as stores or layers. You can now start typing the name of an option, and the visible options will be filtered to match.

Editing raster layer parameters made easier, from a wall a text input fields, to appropriate controls being used depending on the parameter type. Here is a “before and after” comparison:

Finally, error messages are now displayed both at top (as usual) and bottom (new!) in all configuration pages. This should make it easier to locate error messages, especially while editing styles:

 

GeoPackage performance improvements

GeoPackage reading and rendering performance improved significantly, up to two times faster on large datasets full extractions and 50% faster on small bounding box searches, bringing GeoPackage on par with PostGIS. We also have a Google spreadsheet with more details.

Shapefile remains king of full dataset extractions and the fastest data source for pure spatial driven queries.

WFS 2.0 and WMTS 1.0 OGC compliance work

During the past few months we have been involved in OGC Testbed 14 and significantly improved GeoServer compliance with WFS 2.0 and WMTS 1.0. The work involved numerous fixes in GeoServer/GeoWebCache, along with variuos fixes in the CITE tests themselves. The changes were too numerous to backport to the 2.12.x series, so if compliance with these protocols is important it’s time to consider an upgrade to the 2.13.x series. For details see these lists:

Work is still ongoing and a small number of issues are yet to be fixed, we’ll keep you updated.

Support for more PostGIS data types

The PostGIS data store now has simple support for HStore and JSON columns. HStore is returned as a Map and will render as a JSON formatted string field in common WFS output formats, while JSON is read as a string and rendered as-is. In both cases no special query support has been added for those types (but we’d be very happy if someone would work, or sponsor, that functionality too).

Better label position control in map rendering

When setting maxDisplacement on point/polygons the renderer used to search in a circular area around the designated label point.
The new displacementMode vendor option allows to control the positioning by specifying the preferred cardinal positions, as a comma separated list.

Coverage views from heterogeneous bands

Satellite data often comes as a set of heterogeenous resolution bands, due to multiple sensors having different native resolutions. It is yet useful to have all bands packaged on the same coverage, for ease of display (false color setups) and information (GetFeatureInfo). Coverage views now allow to mix those bands, coming from separate files and organized in a image mosaic, in a single multiband coverage view, resampling on the fly with configurable target resolution policies.

Removed OS X installers

Due to lack of resources and interest, the OS X dmg installers are no longer being built. OS X users can still use the system-independent binary.

New community modules and improvements

The 2.13 series comes with a few new community modules, in particular:

  • Do you want to generate GHRSST compliant outputs from GHRSST inputs? Try out the new GHRSST NetCDF output community module.
  • The mongodb community module provides an easy-to-use wrapper around the Ge0Tools mongodb data store, allowing you to publish geospatial data stored in mongodb.
  • There is also a new community module introducing NSG profiles for the WFS and WMTS services.

Existing community modules also got some love, in particular:

  • The WPS download module now allows to download large maps, and also build animations, generating MP4 courtesy of jcodec library. Both processes can (and should!) be invoked asynchronously to better handle long generation times. Here is an example of animation output:
http://blog.geoserver.org/wp-content/uploads/2018/02/response.mp4
  • The WPS download process now also allows control of GeoTiff output structure (tiling, compression) in raw raster downloads, as well as downloading granules part of a heterogeneous mosaic in their native CRS and native resolution
  • Various JDBCConfig and JDBCStore performance improvements, reducing the number of configuration database queries performed for each OGC request. Configuration queries are also consistently logged for further analysis

Note that community modules are not part of the release; instead you can find them in the nightly builds.

Other assorted improvements

A single bug got fixed since the RC, for more information please see the release notes (2.13.02.13-RC1 | 2.13-beta):

  • CQL filter not working when asking for vector tiles in wms request, GEOS-8065

 

GeoTools Team: GeoTools 19.0 released

Planet OSGeo feeds - Mon, 03/19/2018 - 18:15
The GeoTools team is pleased to announce the release of GeoTools 19.0: geotools-19.0-bin.zip geotools-19.0-doc.zip geotools-19.0-userguide.zip geotools-19.0-project.zip maven repository This is the first release of the 19.x series, now marked as stable and deemed suitable for production systems, while 18.x switches to maintenance mode and 17.x gets out of support. This release is made in

gisky: Don't use zonal statistics as a table in ArcGIS

Planet OSGeo feeds - Sun, 03/18/2018 - 22:07
Short version: Don't ever use zonal statistics as a table in arcgis. It manages to do simple calculations such as calculating an average wrong.

Example of using zonal statistics between grid cells (from the ArcGIS manual)

Long version: I was hired by a customer to determine why they got unexpected results for their analyses. These analyses led to an official map with legal consequences. After investigating their whole procedure a number of issues were found. But the major source of errors was one which I found very unlikely: it turns out that the algorithm used by ArcGIS spatial analyst to determine the average grid value in a shape is wrong. Not just a little wrong. Very wrong. And no, I am not talking about the no data handling which was very wrong as well, I'm talking about how the algorithm compares vectors and rasters Interestingly, this seems to be known, as the arcgis manual states
It is recommended to only use rasters as the zone input, as it offers you greater control over the vector-to-raster conversion. This will help ensure you consistently get the expected results.So how does arcgis compare vectors and rasters? In fact one could invent a number of algorithms:

  • Use the centers of the pixels and compare those to the vectors (most frequently used and fastest).
  • Use the actual area of the pixels 
  • Use those pixels of which the majority of the area is covered by the vector. 


None of these algorithm matches with the results we saw from arcgis, even though the documentation seems to suggest the first method is used. So what is happening? It seems that arcgis first converts your vector file to a raster, not necessarily in the same grid system as the grid you compare to. Then it interpolates your own grid (using an undocumented method) and then takes the average of those interpolated values if their cells match with the raster you supplied. This means pixels outside your shape can have an influence on the result. This mainly seems to occur when large areas are mapped (eg Belgium at 5m).

The average of this triangle is calculated by ArcGIS as 5.47

I don't understand how the market leader in GIS can do such a basic operation so wrong, and the whole search also convinced me how important it is to open the source (or at least the algorithm used) to get reproducible results. Anyway, if you are still stuck with arcgis, know that you can install SAGA GIS as a toolbox. It contains sensible algorithms to do a vector/raster intersection and they are also approximately 10 times faster than the ArcGIS versions. Or you can have a look at how Grass and QGIS implement this.  All of this of course only if you consistently want to get the expected results...

And if your government also uses ArcGIS for determining taxes or other policies, perhaps they too should consider switching to a product which consistently gives the expected results.

Update March 18 2018: make sure you check out the comments from Steve Kopp (spatial analyst development team) below and the discussion - it is interesting.

GIScussions: Mapping Google Sheets

Planet OSGeo feeds - Sun, 03/18/2018 - 19:16

If you follow me on twitter you may have seen a few tweets encouraging you to donate to Linkey, a charity that provides support to rough sleepers by donors buying sleeping bags, cold weather gear and toiletry kits in their web shop. It’s an inspiring charity that only started a few months ago. I reached out to a couple of the founders to see if there was any way I could help them and in the midst of our discussions they asked whether I could improve the current map of the shelters that they support, they also wanted to be able to update the map easily as the list of shelters they were working with grew. “No problem, send me the list” I said, so last week I sat down with a small spreadsheet to see how I could knock up a slightly more elegant web map for them.

This is a screen shot of the map that they had on their site (I grabbed a copy so that it would be there as a reference point if Linkey subsequently uses one of the options that I offered).

This is an ok but rather basic map via a service from BatchGeo, which offers a neat copy and paste interface to drop some spreadsheet data and build a simple map. The letters on the pins correlate with a list of shelters and addresses that appears when you scroll the map down in the frame but it isn’t obvious that there is a scrolling option. One downside is the quite large advert that shows at the bottom of the map, you can get rid of ads if you upgrade to the $99/month “pro” option which offers a lot more features but is probably overkill for a charity that only wants to map 20 or 30 points at the moment.

First up I thought I would give QGIS and QGIS2Web a try (sort of reusing what I learnt on geocoding etc in making the US steel plants map a couple of weeks ago) which worked quite easily and produced

The downsides that I discovered with this map were that QGIS2Web support for SVG symbols (I had a nice “bed” symbol that I wanted to use for shelters) was a bit flaky, colours got lost, the OpenLayers version seemed to flicker or not appear (I couldn’t get to the bottom of this. Maybe I could have found a solution and spent some time tweaking to make the map more elegant but I also realised that the only way that the Linkey team would be able to update the map was by asking me to recreate it and re-upload to my server which was not an ideal solution.

I thought there should be a easy way to map a few points and produce some decent looking out put without going through the rigmarole that I had to geocode the point data, map it in QGIS, turn into a web map and then upload to my server. I did a bit of searching and stumbled on an add-on for Google Sheets called Mapping Sheets by The XS. This is a neat add-on which lets you select the address column for geocoding, choose a field for a filter to switch record groups on and off and then publish some GeoJSON to your Google Drive and create a map that calls this data.

Mapping Sheets is very easy to use (just make sure that GeoJSON is shared for public access within your Google Drive) and it’s also very simple to update, after you have edited the Google Sheet or added some rows you just open the add-on, rebuild your map and you are done. Downsides are that there isn’t a way to control the colours of the pins, change symbols or base maps and there is a limit of 50 rows in the free version of Mapping Sheets (the Premium version is only $25/year and gives more control over icons etc and unlimited rows). This is a pretty neat solution.

A bit more googling suggested that there was a direct integration between Google Maps and Google Sheets (as opposed to the map type charts that you can embed in a Google Sheet). Open Google Maps, log into your account, go to My places and select My Maps, create a new map (give it a title and description), add a layer by choosing the Import option and selecting your Google Sheet, select the address column and you are there, you have a map which you can now tweak by varying icons, colours and base maps.

Updating this map is a little more work than MappIng Sheets, once you have edited the Google Sheet you have to go back to My Maps and remove the old layer and add the layer again and restyle it. Plus side is there are no charges and there doesn’t seem to be a limit to the number of rows that you can map. I guess you pay your money (or not) and you can make your choice.

Both of these approaches work pretty well and don’t require any coding, web hosting or other tech competence. I’m sure ESRI have a similar solution using ArcGIS OnLine and MapBox offer a highly customisable solution but I think you would need to be better at JavaScript than me to get it set up. I guess you pay your money (or not) and you can make your choice.

BTW if this was useful, or even if it wasn’t, hop over to Linkey and buy something for some homeless people

gvSIG Team: Creating a symbol library for gvSIG Desktop in a few minutes

Planet OSGeo feeds - Fri, 03/16/2018 - 17:09

Although the symbol importer is available in gvSIG from some time ago not everyone knows it… and it’s a fantastic tool! Besides if we combine it with another applications like XnConvert we can create new symbology in a few minutes.

We are going to show an example, taking advantage of the fact that tomorrow is Saint Patrick’s Day, about how to create a symbol library related to that anniversary.

These are the steps to follow:

  1. We have to download the symbology (there are thousands of them in several websites like FlatIcon). In this case we search them writing ‘Saint Patrick’, we select the package and we download it in a zip file. Once downloaded and unzipped, we have it available for work.
  2. With XnConvert we generate a copy of those symbols to a smaller size. And a second copy, saved with ‘_sel’ suffix by applying a specific filter (in this case ‘negative’). In this way we will have some symbols that change to their negative version when we select them in gvSIG Desktop
  3. With gvSIG Desktop we use the symbol importer.
  4. The last step simply is to use them.

We have recorded a video where you can see how to do it in a few minutes.

gvSIG Team: Nuevo plugin para análisis de sistemas de distribución de agua potable en gvSIG 2.4

Planet OSGeo feeds - Fri, 03/16/2018 - 11:48

Ya está disponible para gvSIG 2.4 el plugin para conectar con el software denominado “Epanet” y que permite el análisis de sistemas de distribución de agua potable.

“Epanet” es una aplicación de dominio público y está desarrollada por la Agencia de Protección Ambiental de Estados Unidos (Environmental Protection Agency; más conocida por las siglas EPA).

“Epanet” es capaz de trabajar con períodos de simulación sobre hidráulica y el comportamiento de la calidad de las aguas dentro de una red presurizada, además de estar diseñada para ser “una herramienta de investigación que mejore nuestro conocimiento del movimiento y destino del agua potable y sus constituyentes en una red de aguas”. Si bien fue diseñado para agua potable también puede ser utilizado para el análisis de cualquier fluido no compresible con flujo a presión.

Para descargar este plugin se debe acceder al Administrador de complementos (menú Herramientas), y seleccionar la opción de “Instalación por URL”, conectando a la URL por defecto. En la siguiente ventana seleccionaremos en el listado de la izquierda la opción “Hydraulic”, y marcaremos el único plugin disponible. Aceptaremos el resto de ventanas (en caso de no tener el plugin base nos avisará de que lo va a instalar), y una vez le damos a “Terminar” debemos de reiniciar gvSIG para que los cambios tengan efecto.

Una vez abierto gvSIG ya podemos acceder al menú “HMachine”, donde tendremos acceso al submenú “Epanet” con las nuevas opciones disponibles.

En estos vídeos podéis ver más información sobre este plugin (en inglés): “gvSIG + Epanet: data preparation” y “gvSIG + Epanet: run Epanet”.

gvSIG Team: The Horton Machine, new geoprocesses available for gvSIG 2.4

Planet OSGeo feeds - Thu, 03/15/2018 - 17:30

The Horton Machine” plugin, formerly known as JGRASS, is now available to be installed on gvSIG 2.4. This plugin has a new toolbox with hundreds of different geoprocesses, added to the more than 350 geoprocesses included in gvSIG Desktop.

With The Horton Machine in gvSIG we will have new and interesting tools: geomorphology analysis (drainage direction, network and watershed extraction, rescaled distances and hydrologic attributes, slope, curvatures, hydrologic indexes, geomorphologic attributes, statistics, peakflow, Saint Venant, tools to prepare data for HECRAS, Shalstab, debrisflow…), LESTO (LiDAR Empowered Sciences Toolbox Opensource), raster map calculator, mobile tools…

To download this plugin you have to open the “Add-ons manager” (from “Tools” menu) and select the “Installation by URL” option, connecting to the URL by default. At the next window you will select “Hydrology” option at the list at the left side, and you will mark the only plugin available. Then you will accept the rest of the windows (if you didn’t have the base plugin it will be installed too) and after finishing you must restart gvSIG so that the changes have an effect.

Once gvSIG is opened, you can access to the “HMachine”, where you will find the new toolbox with the geoprocesses.

During the 3rd gvSIG Festival there will be a presentation where the Horton Machine plugin management will be shown. It will be available from the “Communications” section at the event website from March 23rd.

gvSIG Team: The Horton Machine, nuevos geoprocesos disponibles para gvSIG 2.4

Planet OSGeo feeds - Thu, 03/15/2018 - 17:17

Ya está disponible para instalar sobre gvSIG 2.4 el plugin “The Horton Machine”, anteriormente conocido como JGRASS, que incluye una nueva caja de herramientas con cientos de geoprocesos de todo tipo, y que se suman a los más de 350 geoprocesos ya existentes en gvSIG Desktop.

Con The Horton Machine se tendrá acceso a herramientas para análisis geomorfológico (dirección de drenaje, cálculo de redes y cuencas, re-escalado de distancias y atributos hidrológicos, pendiente, curvaturas, índices hidrológicos, atributos geomorfológicos, estadísticas, flujo máximo, Saint Venant, herramientas de preparación de datos para HECRAS, Shalstab, flujo de escombros…), LESTO (LiDAR Empowered Sciences Toolbox Opensource), calculadora de mapas para capas ráster…

Para descargar este plugin se debe acceder al Administrador de complementos (menú Herramientas), y seleccionar la opción de “Instalación por URL”, conectando a la URL por defecto. En la siguiente ventana seleccionaremos en el listado de la izquierda la opción “Hydrology”, y marcaremos el único plugin disponible. Aceptaremos el resto de ventanas (en caso de no tener el plugin base nos avisará de que lo va a instalar), y una vez le damos a “Terminar” debemos de reiniciar gvSIG para que los cambios tengan efecto.

Una vez abierto gvSIG ya podemos acceder al menú “HMachine”, donde tendremos acceso a la nueva caja de herramientas.

Durante el 3er gvSIG Festival se dará una ponencia sobre el manejo de este nuevo plugin. Dicha ponencia estará disponible en el apartado de “Comunicaciones” de la web de dicho evento a partir del 23 de marzo de 2018.

gvSIG Team: Plugins update for gvSIG 2.4

Planet OSGeo feeds - Wed, 03/14/2018 - 12:44

After releasing gvSIG 2.4 version some improvements have been carried out on the behaviour of some plugins that were included on it. Through the add-ons manager they can be updated without installing gvSIG again.

In some of the improved functionalities it’s necessary to install more than one plugin.

These are the plugins that have been updated:

Functionality

Name of the plugin to update (and build number)

Layout Document

  • Document: Layout document plugin, version 2 (BN 2.0.121-140)

Heat map legend

  • Document: Layout document plugin, version 2 (BN 2.0.121-140)
  • Vector legend: heat map (BN 1.0.14-17)

Point disperse geoprocessing tool

  • gvSIG-desktop-2.4.0-org.gvsig.shp.app.mainplugin (BN 2.0.220-2767
  • org.gvsig.geoprocess.app.algorithm (BN 2.2.92-2169)
  • org.gvsig.geoprocess.app.sextante (BN 2.2.92-2169)
  • org.gvsig.geoprocess.app.mainplugin (BN 2.2.92-2169)

Rossmo’s algorithm

  • Rossmo’s algorithm (BN 1.0.0-4)

Once you open the add-ons manager (“Tools” menu) you have to select “Installation by URL” option, connecting to the URL by default. Then you have to search any of the plugins for the concrete functionality, selecting and installing them (you can select several plugins at the same time). Finally you must restart gvSIG so that the changes have an effect.

Pages

Subscribe to soilinformationstandards.org aggregator