domingo, 23 de fevereiro de 2014

Como converter UTM para Grau ou vice versa: principais elementos



Aborademos: Datum e Meridiano Central Tipos de Coordenada Converter UTM para Graus Converter GRAUS para UTM Olá pessoas, Percebi que a maioria das pessoas chegam nesse site procurando termos como "...











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sábado, 22 de fevereiro de 2014

0302 Reference systems for smal scale maps in ArcMap - YouTube



Customize projected coordinate systems, layout view, page orientation, guides, graticule, aligning central meridian of map with grid grain and origin and ref...











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0304 Label features in ArcMap - YouTube



Label tab in layer properties, maplex labeling engine, align with graticule.











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0303 Preparing features in ArcMap - YouTube



Select by attribute (with a little text parsing), get features to show geographic context, fix scale and extent to reconsider layout now that you have all th...











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0305 Moving vector and raster data from Arc to AI - YouTube



Some strategies for moving between Arc and AI: export vector data separately from raster data. Export raster as an image file without any vector data. Check ...











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ArcMap Field Calculator: Identifying Unique Cases, Multiple Fields



You may have noticed that this post--ArcMap Field Calculator: Identifying Unique Cases, Single Field--specifies "Single Field". Yes, that was my version of a cliff-hanger post. The basic structure ...











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ArcMap Field Calculator: Calculating Geometry using arcpy



Simple examples of calculating the [Shape] of records using the Field Calculator in ArcGIS 10











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ArcMap Field Calculator: Create a Unique ID



How to calculate a sequential unique ID in ArcGIS 10 using an arcpy module in the ArcMap Field Calculator.











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ArcMap Field Calculator: Number of parts in multi-part feature



In the last week, I have looked for multi-part features a couple of times. Today, I was looking for multi-part polygons after dealing with the fall-out of a case of Clip Gone Wild as shown below. I...











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ArcMap Field Calculator: Calculating Running Total with arcpy



I had a user with a series of GPS points (that were in chronological order) that they wanted to know the accumulated distance from the start to each point in their shapefile. First, we calculated t...











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Como instalar uma chave Microsoft Bing e aceder às imagens na janela “Adicionar mapa base”



Desde o início do ano, a utilização de imagens Bing requer uma chave Bing adquirida através da Microsoft. Antes de completar os passos abaixo, deverá contactar a Microsoft para obter uma chave, através do email bing4esri@microsoft.com.











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Marinha testa drone para patrulhar a Amazônia Azul



Veículo Aéreo Não Tripulado pode identificar embarcações e avistar cidades a quilômetros de distância; militares farão [...]











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nyalldawson.net: QGIS – Two neat features in 2.2



Here’s a quick run-down on two nice new styling options which I’ve recently added to QGIS 2.2.











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Obtención de información de un shapefile tipo punto mediante maptools en lenguaje R



Hace algún tiempo escribí un post sobre un uso puntual de la librería maptools de R. Hoy vamos a retomar el tema incluyendo otros aspectos.











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QGIS 2.0: Reprojeção de Raster Landsat-8 de WGS 1984 para SIRGAS 2000



Este vídeo contém os passos para trocar projeções de WGS 1984 UTM Zone 22 N para SIRGAS 2000 UTM Zone 22 S no software livre QGIS 2.0.

No problema em questão, temos imagens Landsat-8 orientadas ao Norte.











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Novo satélite WorldView 3 fará imagens com muito mais resolução



Até o final de 2014, o satélite de última geração WorldView 3, fabricado pela Ball Aerospace, [...]











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CPE realizará seminário gratuito sobre Novas Tecnologias em Topografia



A CPE Tecnologia realizará gratuitamente o seminário “Novas tecnologias em topografia”, com foco nas novidades software [...]











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Basemap System Upgrade to ArcGIS 10.2 for Server Completed



The Esri ArcGIS Online Basemap system (i.e., services.arcgisonline.com, server.arcgisonline.com) was upgraded last night to ArcGIS 10.2 for Server.











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Dicas e Truques para o Esri Maps for Office



Neste vídeo, a Esri demonstra como tirar o máximo partido do Esri Maps for Office.











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quinta-feira, 20 de fevereiro de 2014

Hydrological modelling with components: A GIS-based open-source framework



This paper describes the structure of JGrass-NewAge: a system for hydrological forecasting and modelling of water resources at the basin scale. It has been designed and implemented to emphasize the comparison of modelling solutions and reproduce hydrological modelling results in a straightforward manner. It is composed of two parts: (i) the data and result visualization system, based on the Geographic Information System uDig and (ii) the component-based modelling system, built on top of the Object Modelling System v3. Modelling components can be selected, adapted, and connected according to the needs of the modeller and then executed within the uDig spatial toolbox. Hence, the system provides an ideal and modern integration of models and GIS without invalidating existing solutions. Compared to traditional hydrological models, which are built upon monolithic code, JGrass-NewAge allows for multiple modelling solutions for the same physical process, provided they share similar input and output constraints. Modelling components are connected by means of a concise scripting language. Furthermore, the system utilizes the Pfafstetter numbering scheme to represent the digital watershed model; the adaption of this topological classification of a basin with respect to NewAge is explained in this paper. Finally, the system application for the Fort Cobb watershed and its results are presented.












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