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Articles -
Feature Articles
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Written by Administrator
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Monday, 04 October 2010 08:16 |
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Marble is an open source digital globe application that is capable of displaying a number of local and Internet data sources. Intended for educational applications, Marble could be likened to an "open source Google Earth". Marble is cross-platform and has versions for the KDE environment and Qt. |
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Articles -
Book Reviews
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Written by Richard Marsden
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Monday, 13 September 2010 08:01 |
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"Map Scripting 101" by Adam Duvander is comprehensive introduction to web mapping that relies on the Mapstraction open source library. The book covers a number of basic Mapstraction map operations, and then builds up other related operations, including the Haversine formula, related web services, and server-side databases. The book is recommended for beginners to web mapping who are familiar with HTML and CSS but have limited or no web mapping experience. Although it concentrates on the Mapstraction library, the intermediate and more advanced chapters include useful "how to" information that is applicable to any JavaScript web mapping application. The text includes a reasonable introductory coverage of JavaScript, and shorter introductions to JQuery, PHP, and MySQL. Serious map developers unfamiliar with these topics will require dedicated texts in order to utilize them fully. |
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News -
Latest News
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Written by Richard Marsden
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Friday, 03 September 2010 19:41 |
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MapFish 2.0 has just been released. MapFish 2 adds support for PostGIS, Spatialite, MySQL, and Oracle Spatial. All of these are supported with GeoAlchemy which is now included. MapFish 2 is also based on the new stable release of Pylons 1.0. The MapFish 2.0 client plugin now uses OpenLayers 2.9.1 and GeoExt 0.7. Note that all these changes also break the MapFish API: v2 does not support the MapFish 1.2 API. Despite these API changes, the new features and supported services should encourage adoption of the new version. The announcement and links to documentation and further information, can be found on the MapFish blog. |
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Feature Articles
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Written by Richard Marsden
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Monday, 19 July 2010 08:40 |
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GeoCommons is provided by FortuisOne and builds on their software products to provide a free and public community service. GeoCommons currently provides two easy-to-use free services based on open source and other freely available datasets. GeoCommons Maker is a simple point-and-click map creator that does not require programming experience; and GeoCommons Finder is a data uploading and sharing service with some basic geocoding abilities. Although these tools are remarkably easy to use, GeoCommons Maker makes the mistake of using the Mercator projection for geospatial data visualization. |
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News -
Latest News
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Written by Richard Marsden
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Monday, 06 September 2010 09:09 |
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The Geoweb Guru's blog syndication feed is now live and is available through the "Blog News" link on the site menus. This has been in testing for a few months, but is now fully automated with updates currently scheduled every 8 hours. Various blog and article feeds are polled. Posts are classified according to content, and only those with geospatial web content are syndicated. This is an active filter so that you can see the geoweb content of the best feeds on the Internet without having to read all the blogs every day. Bookmark the Blog News page for future reference. |
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Feature Articles
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Written by Eric Pimpler
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Monday, 23 August 2010 10:57 |
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This article was previously published on GeoChalkboard, and has been reproduced here with permission. GeoChalkboard is published by Geospatial Training Services who provide a range of geospatial web courses.
In the first article in our series on the ArcGIS Server API for Flex we covered some basic concepts including how to create maps and add layers. We covered both tiled and dynamic map service layers. In this brief article you will learn how to apply a definition expression to your dynamic map service layer to restrict the features displayed from a layer. For instance, in the figure below we are plotting only those counties that suffered a population loss from 2000 to 2007.
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Last Updated on Monday, 23 August 2010 11:06 |
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Articles -
Feature Articles
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Written by Eric Pimpler
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Monday, 05 July 2010 08:19 |
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This article was previously published on GeoChalkboard, and has been reproduced here with permission. GeoChalkboard is published by Geospatial Training Services who provide a range of geospatial web courses.
Today we are beginning a new series of posts on the ArcGIS Server API for Flex. The ArcGIS API for Flex allows the creation of Rich Internet applications on top of ArcGIS Server, and is based on the free Adobe Flex framework. The Flex framework is a client-side technology that is rendered by Flash Player 9 and above, or by Adobe AIR.
The term Rich Internet Applications or RIAs has become synonymous with Web 2.0 applications. But what are Rich Internet Applications? RIAs provide desktop functionality in a web application. They are engaging, interactive, and expressive applications with easy to use interfaces. RIA provide increased productivity to end users. There is no waiting for full-page reloading after user actions. Instead, RIAs provide instant feedback to the user and are responsive to their actions. In GIS terms, RIA applications provide the ability to create attractive visualizations of geographic analysis, and the ability to interact with the data.
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Last Updated on Monday, 05 July 2010 08:35 |
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