ArcGis e o suporte ao Windows Vista e o fim de linha do ArcView 3.2 e do MapObjects

Uma noticia publicada no blog do James Fee informa que o suporte para windows vista que tinha sido anunciado na conferencia ESRI estaria disponível no service pack 3, agora so estará disponível no service pack 4. No site da ESRI eles informam ainda que as versões anteriores do ArcGis (9.1 e abaixo) não terão suporte para o Windows Vista assim como o ArcView 3.2 e o MapObjects. Fim de linha para estes. Veja com seus próprios olhos : http://support.esri.com/index.cfm?fa=knowledgebase.techarticles.articleShow&d=31074
É uma pena o ArcView 3.2 sair de linha, era um software muito bom para ensinar SIG.

Problema com os tutoriais em vídeo no Blog

Estamos com problemas na exibição dos tutoriais em vídeo. Os arquivos estão hospedados no googlepage e hoje quando tentei abrir um dos videos deu uma mensagem dizendo que eu tinha estourado meu limite de banda. E eu nem sabia que tinha limite de banda. Amanhã estarei movendo os tutoriais para outro site que não tenha este problema.

Livros: Principles of Geographical Information Systems (Spatial Information Systems)

Principles of Geographical Information Systems (Spatial Information Systems)
Peter A. Burrough and Rachael A. McDonnell
Oxford University Press, 1998


Book Description
This book is a completely new version of the highly successful Principles of Geographical Information Systems for Land Resources Assessment which was first published in 1986. GIS are not just used for electronic map-making but today are major tools for the management of our physical and social environment. GIS are used to assist political decisions and play a part in market research, in the management of utility services, in automated navigation systems and in many other fields. This book presents a strong theoretical basis for GIS, which is often lacking in other texts. Spatial data are usually based on two, dichotomous paradigms, exactly defined entities in space, such as land parcels, or the continuous variation of single attributes, such as temperature or rainfall. Methods for modelling both kinds of phenomena and storing them in spatial databases are described in detail, including the use of geostatistics for interpolating from points to continuous fields. Examples of how spatial data and an analysis of their spatial interactions are used to solve a wide range of practical problems ranging from site-location analysis through land degradation, the optimizing of timber extraction from forests and the redistribution of Chernobyl radioactivity by floods are explained clearly and in detail. Much attention is paid to the problems of data quality and how statistical errors in spatial data can affect the results of spatial modelling based on the two paradigms of space. Fuzzy logic and continuous classification methods are presented as methods for linking the two spatial paradigms. The book concludes with an investigation of current developments in providing spatial data for the whole world over the Internet. As such the new volume provides a comprehensive and concise introduction to the theory and practice of Geographical Information Systems (GIS). Targeted at undergraduates, graduates, and professionals in disciplines such as physical and human geography, hydrology, geology, environmental science, cartography, epidemiology, radioecology, agriculture, spatial planning, land tenure, and land evaluation the book explains why spatial data and the information systems based on them are important in the modern world.

Livro : Geographical Information Systems: Principles, Techniques, Management and Applications, 2nd Edition

Geographical Information Systems: Principles, Techniques, Management and Applications
Paul A. Longley, Michael F. Goodchild, David J. Maguire and David W. Rhind
Willey, 2005


Since the publication of the First Edition of Geographical Information Systems in 1991, the "Big Book" of GIS has become the definitive work on the science, application, and practice of GIS. This new Abridged Second Edition of Geographical Information Systems brings this definitive reference to a whole new audience, with a streamlined format, a new chapter covering recent developments in GIS, and the full text of the Second Edition of Geographical Information Systems, seventy-two chapters in all, on the accompanying CD-ROM in searchable PDF format.

Unmatched in scope by any other reference on the subject, Geographical Information Systems, Second Edition provides crucial background on basic GIS concepts and addresses the radical shifts and changes that have taken place in GIS technology and its uses. Included in this Abridged Edition are twenty-four chapters covering topics as diverse as issues of space and time in GIS, problems with data quality, uncertainty and error detection, spatial analysis, developments in GIS architecture and spatial databases, GIS data collection, data transformation and linkage, implementing GIS and using it as a management tool, and the societal and legal implications of GIS and spatial information.

Teclas de atalho no ArcGis 9.2

Teclas de atalhos para zoom, pan, extents etc. O PDF completo com todos as teclas de atalho do ArcGis 9.2 pode ser baixado do link : http://www.esri.com/news/arcuser/1006/files/cheat.pdf

Livros : making maps: a visual guide to map design for gis

by John Krygier and Denis Wood
Guilford Press, 2005
Softcover, 303 pp. ISBN 1-59385-200-2
Onde comprar : Amazon

Although Making Maps is aimed at a GIS audience (just look at that subtitle), this is not a book about GIS. (But it’s certainly for GIS.) Nor is it limited to the GIS pros. Rather, it’s a book that lives up to its title in the broadest sense: it’s about making maps not in the technical sense, but in the conceptual sense. As such, it’s applicable to everyone with an interest in mapmaking, regardless of their professional level or the software they use to make their maps. Even people who make maps with pen and ink — which is, I suppose, how we all started, pros and hobbyists alike — will learn a great deal from this book.
Making Maps is a profoundly visual book. In a way, it’s all illustrations and sidebars and captions, with very little text in any kind of linear narrative. Its chapters outline the choices that a mapmaker must make when creating a map: technical choices like projection and scale; more artistic choices like colour — with, of course, numerous examples. When representing data (for example, showing poverty rates by geographic area), the authors discuss the use of colour and hue. The map’s purpose also determines how it’s simplified — no map can include every detail, so what detail do you include, what do you exclude, and what do you highlight? Two maps of the same area with different purposes will look very different.
Krygier and Wood take us through these choices, but they also point out why some choices are better for some purposes than others. They don’t say, for example, that Mercator is a better projection than Robinson (or vice versa), but that each is best for a certain purpose. It’s a very practical book, all the more because it doesn’t sit on the fence.
Making Maps is both accessible and useful: everyone with an interest in maps will be able to take something away from it. But it’s also tremendously enjoyable reading. Highly recommended.
http://www.mcwetboy.net/maproom/2006/03/book_review_mak.php

Escolhendo o tamanho de célula para um grid

Saiu um post interessante no blog da ESRI sobre como escolher o tamanho de célula para gerar um grid por interpolação. La eles recomendam a resolução baseado no uso que o grid vai ter. Então para um mapa 1:25.000 que será impresso a 300 DPI eles recomendam grid de 10m e para Grids que serão visualizados na tela (96 DPI) eles recomendam 10m para 1:12.000 e 3m para 1:5.000. Aqui no LabGeo onde nossos grids são normalmente interpolados a partir de curvas de nível normalmente utilizamos como tamanho do grid a metade da distância entre curvas de nível, então para um mapa do IBGE na escala 1:50.000 com curvas de nível de 20 em 20m utilizamos um tamanho de célula de 10m. Outra regra que já vi sendo usada e considerar o tamanho mínimo da célula igual ao padrão de exatidão cartográfica. Neste caso 0,2 mm na escala 1:50.000 corresponderia também a 10m. o link para o artigo do blog da esri é : http://blogs.esri.com/roller/page/mappingcenter?entry=choosing_an_appropriate_cell_size

e você ??? como escolhe o tamanho da célula de um grid ?? Compartilhe conosco