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ArcGIS tutorials This topic provides a set of links to a collection of various ArcGIS tutorials used to perform a number of common tasks in ArcGIS. Find the tutorial that you would like to work through by clicking the links in the tables below. To work through the ArcGIS for Desktop tutorials, you need to install the tutorial data from the ArcGIS for Desktop Tutorial Data setup, which is part of the ArcGIS for Desktop installation download or media. The ArcGIS for Server installation does not include tutorial data. Keep in mind that these tutorials are only a starting point for you to learn about ArcGIS. ArcGIS for Desktop application tutorials ArcGIS for Desktop extension tutorials ArcGIS for Server tutorials

Generador QR. Códigos QR Instrucciones de uso del generador de CODIGOS QR Seleccionar el tipo de código QR a generar direcciones url, SMS, texto libre, email, geolocalización, eventos, red WIFI (solo android), números del teléfono y datos de contacto para Vcards usando las solapas superiores del menú del generador. Rellenar los datos del formulario dependiendo del tipo de contenido a codificar. Recomendaciones para usar los Códigos QR ¿Ya has generado tu QR?. Los códigos QR con lecturas más sencillas y fiables son los "clásicos" ( negro sobre blanco) es decir sin personalizaciones ni cambios de color. Webs, Url y QR Muy Importante! Usabilidad de los códigos QR El objetivo principal para usar un QR es faciltar al usuario la realización de una acción, ya sea visitar a una Web, enviar un email, etc... Promover la lectura de tu Código QR Piensa que no todo el mundo tiene interés por leer tu QR. Preguntas Frecuentes: FAQS Sobre nuestro generador de QR Servicios adicionales Cursos y talleres de formación sobre códigos QR.

Maps and Data Oregon/Washington BLM Welcome to the Maps and Data page. We hope you will take the time to explore it. The page contains links to maps, Cadastral Survey, and Land Records. We provide leadership, management, and technical direction for the development and implementation of the BLM Oregon and Washington’s surveying, mapping, aerial photography, geodesy, resource grade global positioning system (GPS) activities. If you can't find what you're looking for on this site, feel free to contact us at 503-808-6132, or via e-mail. The Bureau of Land Management's Oregon/Washington (OR/WA) Data Library contains the spatial data of the Oregon and Washington BLM. Maps The Cartography Team is part of Mapping Sciences in Oregon/Washington BLM, which also includes remote sensing, and photogrammetry. Remote Sensing Remote Sensing is the science of observing and measuring from remote locations. BLM currently acquires imagery in several forms - printed stereo photography or digital imagery in natural color or color infrared.

Free GIS datasets What tools can be used to create topic model network graphs? Do you really mean that you want nodes for documents and topics, a <dfn>bimodal graph</dfn>? In that case your graph would have a small number of nodes (the topic nodes) with high centrality. And then thousands of small nodes (the document nodes) with low centrality. If this is the case, how are you calculating the topic weight for a document? It seems to make more sense to me to have nodes for just documents, and edges between documents that share a topic; a <dfn>multigraph</dfn>. As for tools to visualise this, here's some Perl which creates a GraphML from a list of documents titled A, B, C, D, E, F, G, and H which each cover one or more topics, 1, 2, 3, 4, 5, 6, or 7: #! I tried importing the output of this in Gephi and it looked basically correct. By the way, when you say "topic model", are your topics just keywords?

GIS Data Warehouses Information about web sites that host large amounts of GIS datasets both at the nationwide (United States) and global levels. Most of the GIS data is available for free or for little cost. Data.gov Data depository for U.S. government data with over 272,000 datasets. The site also has an Apps Showcase, highlighting different sites that are using data from Data.gov. EROS Data Center The USGS EROS Data Center houses millions of aerial photographs of the United States, as well as images from several series of satellites covering the entire Earth. Federal Communications Commission Datasets Mostly MapInfo format vector datasets available for free download. MapMart Commercial data service. National Atlas National Atlas of the United States has nationwide datasets to view and download as ArcView shapefiles. OpenStreetMap Exportable geographic data for the entire globe. USGS Geographic Data Download Access to a wide variety of public domain data from USGS at a variety of scales. Related:

POSTER FOTO: crea online un póster personalizado con tus fotos preferidas - PhotoBox 16 formatos de poster disponibles Elige entre 2 grosores: Fujicolor Crystal Archive o Premium Pro (16% + grueso) Acabado: mate o brillante La calidad del líder en Europa Los más bellos coloresLos colores en tu foto se aplican plenamente gracias a la utilización de nuestra impresión Laser de Polielectrónica. 100% calidad PhotoBoxUsamos un lienzo especialmente desarrollado para la impresión digital. Un servicio de fotos en el que puedes confiar Fabricación en 48h*Todos nuestros posters de fotos se envían en24h, excepto Maxi Poster y Poster 50x90 cm que tiene un tiempo de producción de 4 días. Protección máxima durante el envíoProtegemos el poster con un embalaje en un soporte duradero y adapatado a cada tamaño. 16 formatos para elegir Elige entre 12 tamaños y 3 formatos diferentes: rectangulares, cuadrados o panorámicos. Elige el acabado: mate o brillante Los acabados mate y brillante son disponibles en todos los formatos de posters Elige el papel Premium Crear online

Historical Magnetic Declination | ngdc.noaa.gov Magnetic declination is an important concept for accurate navigation. A compass will always point along the lines of magnetic force (which converge on what are called the magnetic poles). The angle between the direction of force and the direction of the geographic north pole is called the declination. If a compass at your location is pointing to the right of true north, declination is positive or east, and if it points to the left of true north, declination is negative or west. As the earth's magnetic field varies over time, the positions of the north and south magnetic poles gradually change. This map displays historical isogonic lines and magnetic poles calculated for the years 1590-2020. Years 1590-1890: calculated from the gUFM model Years 1900-2020: calculated from the IGRF Years 1890-1900: a smooth transition was imposed between models More information about geomagnetism at NCEI More information about magnetic poles and polar wander at NCEI Instructions for using the map:

Learn GIS for Free Ad: There are a few online options to learn GIS for free. Take advantage of resources that provide you access to free courses from some of the world’s best universities and institutions. Learn GIS on your own or supplement your existing geospatial education with these free resources. iTunes U Download this free app on your iPhone or iPad and take advantage of free courses available through iTunes U. Free GIS Courses from Esri Esri offers a substantial amount of both free and fee-based courses teaching a range of courses mostly specific to learning Esri’s ArcGIS software. Introduction to GIS Course from Harvard Harvard University offers a free Introduction to Geographic Information Systems course. OpenCourseWare – Free GIS Courses from Universities OpenCourseWare (OCW) are free courses published by universities and made publicly available on the Internet. Some examples of OpenCourseWare GIS courses: MOOC (Massive Open Online Course) GIS Advertising:

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