945 resultados para Geographic information systems Software


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This contribution is the first part of a four-part series documenting the development of B:RUN, a software program which reads data for common spreadsheets and presents them as low-resolution maps of slates and processes. The program emerged from a need which arose during a project in Brunei Darussalam for a 'low level' approach for researchers to communicate findings as efficiently and expeditiously as possible. Part I provides a overview of the concept and design elements of B:RUN. Part II will highlight results of the economics components of the program evaluating different fishing regimes, sailing distances from ports and fleet operating costs. Environmental aspects will be presented in Part III in the form of overlay maps. Part IV will summarize the implications of B:RUN results to coastal and fishery resources management in Brunei Darussalam and show how this approach can be adapted to other coastlines and used as a teaching and training tool. The following three parts will be published in future editions of Naga, the ICLARM Quarterly. The program is available through ICLARM.

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This study concerns the spatial allocation of material flows, with emphasis on construction material in the Irish housing sector. It addresses some of the key issues concerning anthropogenic impact on the environment through spatial temporal visualisation of the flow of materials, wastes and emissions at different spatial levels. This is presented in the form of a spatial model, Spatial Allocation of Material Flow Analysis (SAMFA), which enables the simulation of construction material flows and associated energy use. SAMFA parallels the Island Limits project (EPA funded under 2004-SD-MS-22-M2), which aimed to create a material flow analysis of the Irish economy classified by industrial sector. SAMFA further develops this by attempting to establish the material flows at the subnational geographical scale that could be used in the development of local authority (LA) sustainability strategies and spatial planning frameworks by highlighting the cumulative environmental impacts of the development of the built environment. By drawing on the idea of planning support systems, SAMFA also aims to provide a cross-disciplinary, integrative medium for involving stakeholders in strategies for a sustainable built environment and, as such, would help illustrate the sustainability consequences of alternative The pilot run of the model in Kildare has shown that the model can be successfully calibrated and applied to develop alternative material flows and energy-use scenarios at the ED level. This has been demonstrated through the development of an integrated and a business-as-usual scenario, with the former integrating a range of potential material efficiency and energysaving policy options and the latter replicating conditions that best describe the current trend. Their comparison shows that the former is better than the latter in terms of both material and energy use. This report also identifies a number of potential areas of future research and areas of broader application. This includes improving the accuracy of the SAMFA model (e.g. by establishing actual life expectancy of buildings in the Irish context through field surveys) and the extension of the model to other Irish counties. This would establish SAMFA as a valuable predicting and monitoring tool that is capable of integrating national and local spatial planning objectives with actual environmental impacts. Furthermore, should the model prove successful at this level, it then has the potential to transfer the modelling approach to other areas of the built environment, such as commercial development and other key contributors of greenhouse emissions. The ultimate aim is to develop a meta-model for predicting the consequences of consumption patterns at the local scale. This therefore offers the possibility of creating critical links between socio technical systems with the most important challenge of all the limitations of the biophysical environment.

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An organisation that had developed a large information system wanted to embark on a programme that would involve large-scale evolution of it. As a precursor to this, it was decided to create a comprehensive architectural description to capture and understand the system’s design. This undertaking faced a number of challenges, including a low general awareness of software modelling and software architecture practices. The approach taken by the software architects tasked with this project included the definition of a simple, very specific, architecture description language. This paper reports our experience of the project and a simple ADL that we created as part of it. 

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En este documento se analizan los conceptos clave relacionados con el software libre: ¿qué es el software libre? ¿qué es el software propietario? ¿qué es el software gratuito? ¿qué es una licencia copyleft? A continuación se muestra cómo las aplicaciones horizontales libres se desarrollan de forma distinta a las verticales libres, entre las que se encuentran los SIG. Seguidamente se detallan las características de los sistemas SIG, centrándose en los SIG libres. El hecho de ser una aplicación vertical condiciona y explica buena parte de las particularidades de los SIG libres. Estas particularidades se analizan a partir de impresiones de profesionales de los SIG. Todo ello lleva a la conclusión que los SIG libres no pueden depender sólo de una comunidad de desarrolladores y necesitan un respaldo económico importante

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Presentació del projecte gvSIG, el sistema d'informació geogràfica en software lliure aplicat a la Generalitat Valenciana

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This article covers some of the principal legal aspects of free and open software applied to Geographic Information Systems. Starting out form basic concepts in FOSS licensing, it aims to deal with questions such as "who is responsible for FOSS projects'", "how are they developed?", "who is the owner of the software?" and discusses the legal issues and problems that may arise during the course of creating, distributing or deploying a FOSS-based GIS

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Wikiloc es un servicio web gratuito para visualizar y compartir rutas y puntos de interés GPS. Utilizando software libre y la API de Google Maps, Wikiloc hace la función de base de datos personal de localizaciones GPS. Desde cualquier acceso a Internet un usuario de GPS puede cargar sus datos GPS y al momento visualizar la ruta y waypoints con distinta cartografía de fondo, incluidos servidores de mapas externos WMS (Web Map Service) o descargarlo a Google Earth para ver en 3D. Paralelamente se muestra el perfil de altura, distancia, desniveles acumulados y las fotos o comentarios que el usuario quiera añadir

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Los proyectos y productos comúnmente llamados Free and Open Source Software relacionados con la geomática están experimentando una evolución y actualización vertiginosa. A los "tradicionales" proyectos de servicios de mapas, bases de datos espaciales o clientes pesados, se les están uniendo un amplio conjunto de componentes como servicios de publicación, clientes ligeros, servicios de geoprocesamiento, movilidad, frameworks, ... o nuevos estándares como GeoRSs, WMS Tiled, WPS, ... (...)

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Tanto los sistemas basados en software propietario como en software libre tienen vengajas e inconvenientes que hacen que una empresa o institución no pueda elegir, al menos a corto plazo, en una solución global basada en un solo tipo de software. Consecuencia de esto, lo más habitual es encontrarnos con elementos mixtos en lo que la política de software se refiere. (...)

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In this work is presented a developed software, which primary objective is to allow the manipulation of PostGIS spatial databases from a graphic interface programmed in Java language

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This article shows the work developed for adapting metadata conform to the official Colombian metadata standard NTC 4611 to the international standard ISO 19115. CatMDedit, an open source metadata editor, is used in this task. CatMDedit is able of import variants of CSDGM such as NTC 4611 and export to the stable version of ISO 19139 (the XML implementation model of ISO 19115)

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Tecnigral, S.L. (consultoría medioambiental) ha buscado desde su origen apoyar a los técnicos en la gestión diaria de servicios urbanos. ¿Cómo? Proporcionándoles tanto software de gestión como servicios de análisis y de control de calidad. (...)

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En este trabajo se describe la solución ideada para la implantación de un Sistema de Información Geográfica que debe dar servicio al Instituto Universitario del Agua y del Medio Ambiente de la Universidad de Murcia y al Instituto Euromediterráneo del Agua. Dada la naturaleza de ambas instituciones, se trata de una herramienta orientada fundamentalmente al estudio de recursos hídricos y procesos hidrológicos. El proceso se inició con una identificación de las necesidades de los usuarios (con perfiles y requerimiento diferentes) y el posterior desarrollo del diseño conceptual que pudiera asegurar la satisfacción de estas necesidades. Debido a que los requerimientos de los usuarios así lo demandaban, se ha tenido en cuenta tanto a usuarios que trabajan en entorno linux como a otros que lo hacen en entorno windows. Se ha optado por un sistema basado en software libre utilizando GRASS para el manejo de información raster y modelización; postgis (sobre postgreSQL) y GRASS para la gestión de información vectorial; y QGIS, gvSIG y Kosmo como interfaces gráficas de usuario. Otros programas utilizados para propósitos específicos han sido R, Mapserver o GMT