Links List 11.7.08

November 7th, 2008by Sean Gorman

James Fee joins in and shares his insight on supporting ESRI’s Geodatabase format and how a File Geodatabase can be shared efficiently. He agrees that the more file formats supported by a GeoData application, the more likely people will use it.

The election rallied much excitement, perhaps due in part to several compelling mapping implementations. The media, for example CNN, turned to maps to present data regarding the election. Maps compiled included locations of candidate rallies and the country’s standings (color-coded in red vs. blue). We even provided our own analysis post-election. (And maybe the most well know, SNL’s Magic Map….)

Jeff Thurston discusses GIS implementation across large energy companies, specifically at Saudi Aramco and BP. Saudi Aramco has 15 GIS units where contractors and numerous amounts of sensors that feed SCADA systems are all dynamically linked through GIS. As for BP, the company embarked on an innovation strategy that seeks to embed GIS and spatial information across the company. Thurston states he knows ‘of a few operations using GIS at the scale and complexity of Saudi Aramco’ and has seen ‘few companies attempt to extend the application of GIS in strategic role beyond practical and operational considerations.’

Google Maps now offers a feature that enables you to download your search results as a waypoint into your GPS system. The feature supports Garmin, TomTom and Pioneer. Make sure you have the correct software installed on your computer.

The KML Handbook by Josie Wernecke is now available for pre-order. Wernecke is a Google tech writer and explains the various elements and features of KML in her brand new book, including topics like Regionation and View Based Refresh.

Popularity: 17% [?]

There has been an interesting discussion going over on James Fee’s blog on the merits of ESRI’s new javascript API and Flex API. James has thrown his lot in with the JavaScript API, and a host of Flex/Flash developers have been exposing their technology’s merits. While we don’t use either of ESRI’s APIs internally we did have to make a choice between Flash and JavaScript/HTML when we were developing Maker. At the end of the day we ended up blending the two approaches – implementing JavaScript where it made sense and utilizing Flash when we needed powerful vector rendering capabilities.

One of the most useful references for me in this process was a workshop Tom Carden gave at ETech last year on the data rendering capabilities of a variety of approaches. The readers digest version of the workshop went something along these lines:

HTML/Javascript – handles 100-1000 data points – loads in .1 seconds
Flash – handles up to 10,000 data points – loads in 1 second
Java/Processing – handles up to 100,000 points – loads in 10 seconds
OpenGL – handles upwards of 1,000,000 points – loads in 100 seconds

For Maker we wanted to be able to handle 10,000+ points/polygons and there was no way JavaScript was going to be able to handle it. Of course rendering the data was just one of many problems. Not only did we have to render the data but also parse it from the server out to the client while running the mathematical operation enabling you to take advantage of the structured data being sent. The team came with lots of clever tricks to pull it off, but the level of performance afforded by using Flash for rendering the vector data was not available with JavaScript. Processing could be a very cool option as the technology matures. Silverlight could also be a great option if they can get the plug-in universally embedded into browsers as with Flash.

While Flash was a great option for the tiling and vector rendering we did not want to build out the entire application in Flash for a variety of reasons. In GeoCommons everything outside of the map itself is JavaScript/HTML. This is probably rudimentary for many folks, but reading the debate on James’ blog I think sometimes developers lose sight of picking the best tool for the job. Oftentimes it is easy to get wedded to an approach just because it is what you know well. We were complete Flash rookies when we started, but got some great help from Tom with Modest Maps, Axis Maps with the Flash development and cartography, hired some full time resources, and learned a lot on our own. It ended up being a great approach for the specific problems we were facing. As long as you are using standard interfaces in your development, you should be able to fluidly adapt to the technology that makes the most sense for your set of problems.

Popularity: 25% [?]

Links List 10.10.08

October 10th, 2008by Sean Gorman

Adena at Directions Magazine shared the Mozilla announcement that Geode is coming. Geode is a geolocation add-on for Firefox which will enable localized content. ReadWriteWeb describes it as a tool that “understands location, enabling enriched, personalized, and localized content" and VentureBeat explains it’s a location determination tool, built on the W3C spec, upon which developers can build. There are still many more questions about the exact capabilities of Geode, but it looks like it could be an interesting tool for your browser.

SlashGeo talks about the importance of GeoPresence, based on a piece by Ron Lake of Galdos, Inc. Ron said, “…a GeoPresence might be thought of as a visual and behavioural representative for yourself or your organization, not in a complete world of fantasy such as Second Life, but in some sort of approximation of the real world, the Virtual World. Furthermore, we can expect that this GeoPresence will reflect you or your organization more or less in real time.”

Karen Siderelis was named the first geographic officer (GIO) for the Department of Interior. Siderelis will guide the Federal Geographic Data Committee (FGDC), which coordinates the federal government’s GIS activities to provide information to people.

The MetaCarta Public Sector User Group established geotagging crime reports as one of the key applications realized by public safety organizations at their meeting yesterday. They highlighted the North Texas Fusion Centers (NTFC) as an example of how the police were able to detect cross border weapons along geographic corridors of the Texas and Mexico border by geotagging the reports to see how crime travels.

ITT released its first, color half-meter ground resolution image taken from the GeoEye-1 satellite. Check out the fusion image ‘created from blending the 0.41m panchromatic image and the 1.65m color image.’

Popularity: 8% [?]

Links List 10.3.08

October 3rd, 2008by Sean Gorman

VectorOne posed the question whether or not geospatial technology could drive political consensus on environmental issues. Environmental issues such as flooding, disease, conservation, and/or water quality require top geographic information, spatial analysis and integration. The GIS and spatial technologies industry should assist anyone making decisions to better understand these issues and make informed decisions based on intelligent information and geodata.

Geodata is not available to all – the Farm Bill (H.R. 6126) prevents the FSA from providing geospatial information to the public. Visit Surveying, Mapping and GIS for more details about what Sec. 1619 Information Gathering entails.

Google Maps is still number one. Cowen & Co., an industry analyst firm specializing in covering Web services, found Google Maps as the “de facto leader” in the online mapping solutions space. The analyst firm stated the competitors’ lack of innovation gave Google its success. They also cited Google’s Streetview and public transportation services as main reasons for success.

Geocoding can provide vital information to marketers. Appending demographic census track data to latitude and longitude coordinates is critical for businesses targeting demographics. Many businesses are using Geocoding as a local search tool, a routing tool, and as a store locator.

Florida tries to coordinates a statewide effort for GIS. This is the fourth time the state tried to develop a coordinating body. With the active Atlantic hurricane seasons, and the death of 208 residents, the state realized that coordination of geospatial information during the hurricanes would have saved lives. The Florida Division of Emergency Management (FDEM) is taking the lead in formulating a statewide GIS strategic plan.

Popularity: 13% [?]