Towards gvSIG 2.5: Expressions

New version of gvSIG 2.5 brings a new functionality that increase the power of gvSIG in a big way. It can be use in different parts of gvSIG. This new functionality is called Expressions.

What is an Expression?

An expression is a formula used for calculations. For example, if we want to create a selection or calculate new values, those can be done by an expression.

We have created a window to create these expressions and you will find it in different places in gvSIG Desktop. This windows could present modifications depending of the purpose of the tool in that moment.

Continue reading

Posted in english, gvSIG Desktop | Tagged | 1 Comment

Camino a gvSIG 2.5: Expresiones

La nueva versión de gvSIG 2.5 trae una nueva funcionalidad que aumenta en una gran cantidad la potencia de gvSIG Desktop en diferentes puntos de la aplicación. Esta nueva funcionalidad son las Expresiones.

¿Qué es una expresión?

Una expresión es una fórmula que se puede utilizar para realizar un cálculo. Por ejemplo, si deseamos realizar una selección o filtrado de entidades de una capa, podríamos hacerlo mediante una expresión.

Para ello hemos creado una ventana que incluye toda esta funcionalidad para crear expresiones y es la que podremos encontrar en diferentes lugares de gvSIG. Estas ventanas incluirán modificaciones según el uso que se haga de las expresiones en ese lugar.

Debajo de la caja de texto de la expresión aparece una previsualización del resultado de la expresión.

Continue reading

Posted in gvSIG Desktop, spanish | Tagged | 3 Comments

gvSIG at Google Summer of Code. GSoC 2019

Two students were selected to work with gvSIG Desktop on GSoC! Two of the seven proposals of the OSGeo Foundation.

The accepted proposals are related with the new topology framework:

  • Create of new topological rules in gvSIG desktop: The project consists of the creation of three new topological rules in the gvSIG desktop toolbox. These rules are ” Must be disjoint ”, “Must not have dangles” and “Must be larger than cluster tolerance” that will help to verify the integrity of the spatial informatio n, validate the representations and correct possible errors of the point, linear and poligonal geometries. Definitely, ensure the quality of geographic data with open source software.
  • New rules for the Topology Framework in gvSIG Desktop: A new topology toolbox to gvSIG desktop. This tool will provide a group of integrity rules that will check the validation of the geometries relationship in the data. A new topology data model can be created for each project. This toolbox provide a new set of tools to navigate, find and fix validation errors different from each topology rule. Right now, there are just a few topology rules implemented with a limited actions. This project will analize, implement and optimize a new set of rules that will be incorporated to this framework. This tools can be created in Java or in Jython through the Scripting composer tool.

Congratulations to all selected students!

Posted in development, english, gvSIG Desktop | Tagged , | 2 Comments

A new gvSIG Mobile version is now available

The new gvSIG Mobile version, the Geographic Information System for Android systems for field data gathering, is now available to install from Google Play Store.

The novelties of this new version are the following:
Continue reading

Posted in english, gvSIG Mobile, gvSIG Suite | Tagged , , | 1 Comment

Nueva versión de gvSIG Mobile disponible

Ya está disponible para instalar desde Google Play Store la nueva versión de gvSIG Mobile, el Sistema de Información Geográfica para sistemas Android para toma de datos en campo.

Las novedades de esta nueva versión son las siguientes:

Continue reading

Posted in gvSIG Mobile, gvSIG Suite, spanish | Tagged , , | 1 Comment

Tutorial gratuito: “Utilização do gvSIG para identificação de áreas adequadas para instalação de usinas fotovoltaicas”

Durante o 4º Festival gvSIG, Graciele Rediske, da Universidade Federal de Santa Maria – UFSM e da Comunidade gvSIG-Brasil apresentou “Utilização do gvSIG para identificação das áreas adequadas adequadas para instalação de usinas fotovoltaicas “, um projeto que também têm a participação dos professores Gilberto Cugler e Júlio CM Siluk.

Eles já disponibilizados em toda a Comunidade um tutorial detalhado que mostra como identificar as áreas para instalação de usinas fotovoltaicas através do uso do gvSIG Desktop, no qual foram aplicadas várias etapas de geoprocessamento, realizando as análises através da tabelas de atributos. Você pode baixar o tutorial no seguinte link.

Continue reading

Posted in community, gvSIG Desktop, portuguese, training | Tagged , , | 1 Comment

El valor estratégico de la georreferenciación. Debate gvSIG – ESRI

El valor estratégico de la georreferenciación, bajo este título y en el marco de la Semana Informática se realizó el pasado 9 de abril un interesante debate entre gvSIG y ESRI. En la mesa los dos modelos posibles para abordar las necesidades relacionadas con la componente geográfica: software libre o privativo. Continue reading

Posted in gvSIG Suite, opinion, spanish | Tagged , , , , , , , | 2 Comments

Municipality platform for geographic information management

Here you have a video where we introduce you to the gvSIG Suite applied to municipality management. It will surely give you a sense of the multiple uses of gvSIG solutions to optimize municipality management.

Related to this, there are several presentations about real cases studies at the following links: in English and in Spanish!

And we also remember you that there’s a free of charge course (with professional certification available) where you can learn about how to work with gvSIG Suite at local administration, a course that thousands of users have followed. Are you up for it?

Course link: I’m going to take the course!

Posted in english, geoportal, gvSIG Desktop, gvSIG Mobile, gvSIG Online, gvSIG Suite, SDI, training | Tagged , , , | 3 Comments

GIS audiovisual course audiovisual with Game of Thrones cartography

Some days ago we launched an idea: what if we celebrate the broadcast of the Game of Thrones final season with a GIS course? The enthusiastic response that we obtained in social networks has encouraged us to record a new course to learn SIG using the Game of Thrones cartography. The collaboration between the gvSIG Association and the Miguel Hernández University has made it possible. Video-quality tutorials, easy to follow and replicate. Of course the course is totally free of charge. You only have to follow each of the modules/videos of the course, and use the free and open source gvSIG Desktop software to be able to replicate the exercises shown at the videos. The files with the necessary cartography to follow the course are also available.

Continue reading

Posted in english, gvSIG Desktop, training | Tagged , , , | 1 Comment

Curso audiovisual de SIG con cartografía de Juego de Tronos

Hace unos días lanzamos una idea, ¿y si celebramos la emisión de la temporada final de Juego de Tronos con un curso de SIG? La entusiasta respuesta que obtuvimos en las redes sociales, nos ha animado a grabar un nuevo curso para aprender SIG utilizando la cartografía de Juego de Tronos. La colaboración entre la Asociación gvSIG y la Universidad Miguel Hernández lo ha hecho posible. Vídeo-tutoriales de calidad, fáciles de seguir y de replicar.

Por supuesto el curso es totalmente gratuito. Simplemente debéis ir siguiendo cada uno de los módulos/vídeos del curso, y utilizar el software libre y gratuito gvSIG Desktop para poder replicar los ejercicios mostrados en los vídeos. Los ficheros con la cartografía necesaria para seguir el curso también los tenéis disponibles. Continue reading

Posted in gvSIG Desktop, spanish | Tagged , , , | 4 Comments