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Quantum GIS

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Welcome to the Quantum GIS Project. Maps Web Services. We are shutting down this service. We suggest using maps from our partner Nokia. Please visit developer.here.net for more information. If you have any concerns or questions, please don't hesitate to contact us in General Discussion at YDN forum. International Maps Satellite Maps Hybrid Maps with Overlays Yahoo!

Yahoo! Make your web site or application come alive with rich contextual maps, location-relevant content, and dynamic user interaction. Developer APIs AJAX and Flash Use DHTML and JavaScript to host your own maps. REST, No Coding, and Utilities Fetch a map image programmatically and stitch tiles together to build your own map. No Coding Overlay your map data easily using the Yahoo! Geocoding API Transform physical addresses into encoded latitude-longitude (geocoded) responses. GeoRSS - Version 2 Use GeoRSS tagged XML files with the Yahoo! Using Yahoo! At the lowest level, each Yahoo! To get started, first select the API that's right for you.

By Programming Language: By User Experience: MapAList - Create and Manage Maps of Address Lists. Untitled. SAGA - System for Automated Geoscientific Analyses. PostGIS : Home. QGIS Labs. QGIS Tutorial Labs Home This is a set of tutorial labs for Quantum GIS, an open source geographic information system. The labs are based loosely on labs in my course ABT 180. They were developed with the help of the following students: Alex Mandel, Dylan Beaudette, Michele Tobias, Xuyang Zhang, Stacey Ellis, Heidi Schott, Michael Treichler, Melissa Whitaker, Kelly Gravuer, Michael Louie, Joel Bremson, Lauren Poremsky, Siqi Fajn, and Cherry Zamora.

Thanks especially to Alex Mandel and Michele Tobias for organizing a seminars to review the labs. The labs are based on QGIS version 1.7.3 (last updated 5/1/2012). I would appreciate hearing comments and suggestions. The labs make use of the following data sets: Field 5 (this is a wheat field located in Central California) Brown's Pond (this is a data set first used in Geographic Information Systems and Cartographic Modeling by C.

Rhode Island's ethnic mosaic - Interactive map. Untitled. Untitled. Untitled. Protovis. Protovis composes custom views of data with simple marks such as bars and dots. Unlike low-level graphics libraries that quickly become tedious for visualization, Protovis defines marks through dynamic properties that encode data, allowing inheritance, scales and layouts to simplify construction. Protovis is free and open-source, provided under the BSD License. It uses JavaScript and SVG for web-native visualizations; no plugin required (though you will need a modern web browser)! Although programming experience is helpful, Protovis is mostly declarative and designed to be learned by example. Protovis is no longer under active development.The final release of Protovis was v3.3.1 (4.7 MB).

The Protovis team is now developing a new visualization library, D3.js, with improved support for animation and interaction. This project was led by Mike Bostock and Jeff Heer of the Stanford Visualization Group, with significant help from Vadim Ogievetsky. Updates May 28, 2010 - ZOMG! Getting Started. How-To: Get Started. Protovis uses JavaScript. It helps if you’re already familiar with the language, but it's not necessary; you can pick it up as you go, and learn by example. Here's a minimal but complete visualization that displays “Hello, world!” : You’ll find more off-the-shelf examples included when you download Protovis. (Most of the examples you'll see in the documentation use method chaining to make specifications more concise. This means that the method to set a property returns a reference to the mark itself, allowing you to set multiple properties in a single statement. If you prefer a more traditional verbose style, you can use that instead.) Breaking it down: 1. 2. 3.

To see more, browse our examples gallery and use your web browser to view the source. Next: Scatterplot Matrix. Choropleth Maps. Examples. Enjoy these sample visualizations built with Protovis. For any example, use your browser to view the source or the backing dataset. Protovis is no longer under active development.The final release of Protovis was v3.3.1 (4.7 MB). The Protovis team is now developing a new visualization library, D3.js, with improved support for animation and interaction.

D3 builds on many of the concepts in Protovis; for more details, please read the introduction and browse the examples. Conventional While Protovis is designed for custom visualization, it is still easy to create many standard chart types. These simpler examples serve as an introduction to the language, demonstrating key abstractions such as quantitative and ordinal scales, while hinting at more advanced features, including stack layout. Area Charts Bar & Column Charts Scatterplots Pie & Donut Charts Line & Step Charts Stacked Charts Grouped Charts Custom Anderson’s Flowers Becker’s Barley Bertin’s Hotel Streamgraphs Sparklines Bullet Charts Bubble Charts.