Posts Tagged ‘Projection’

ArcGIS 9.3 Now Exports Geo PDF Maps (ESRI)

Monday, October 20th, 2008

Adobe® Acrobat® and Adobe Reader® version 9 support a new version of PDF that allows for encoding of map coordinate system and georeference information inside the PDF file.

[Update 2010 August 13: To make this work in ArcMap 9.3 you need to apply the ArcGIS (Desktop, Engine, Server) 9.3 Map Export Patch. That installs two DLLs that allow the Export Map Georeference Information checkbox. Without that, you’re maps might have layers, but no coordinate system.]

This news release was in the summer 2008 issue (read) of the Arc user magazine but it came up last week at NACIS. Why is this better than other PDF solutions like TerraGo? It is completely free to both the cartographer and map reader and requires basic Adobe Acrobat (no plugins to download). ESRI and Adobe collaborated for a year on these PDF geospatial capabilities enhancements.

It works on both Mac and PC while other solutions are PC only. It is not full featured, though feature attributes and coordinates are accessible in Acrobat. But nifty tidbit: with Acrobat Pro you can import supplementary geo data into an existing geo PDF, even if it is in a different projection, and it will overlay onto the map. Might turn out to be a quick and dirty reprojection trick for those without ArcMap.

Most information below directly from ESRI promotional material.

ArcGIS 9.3 has new and improved functionality for exporting maps to Adobe PDF including map layers and location information for end users with Adobe Acrobat 9 or Reader 9 software. These enhancements are available as a freely downloadable patch for ArcGIS Desktop, ArcGIS Server, and ArcGIS Engine. This patch enables ArcGIS Desktop, Engine, and Server applications to export georeferenced PDF files.

When a georeferenced PDF is opened in a compatible viewer, such as Adobe Reader 9, the user can access geospatial functions like coordinate readout and find XY.  This patch enables ArcGIS Desktop, Engine, and Server applications to export georeferenced PDF files.

Check out this video demonstration from ESRI TV:

Instant-Messagers Really Are About Six Degrees from Kevin Bacon (WaPo)

Sunday, August 3rd, 2008

six degrees[Editor’s note: Topology makes internet searches faster, makes cool maps, and connects people in social networks.]

Big Microsoft Study Supports Small World Theory

By Peter Whoriskey Reprinted
Washington Post Staff Writer
Saturday, August 2, 2008; Page A01

Turns out, it is a small world.

The “small world theory,” embodied in the old saw that there are just “six degrees of separation” between any two strangers on Earth, has been largely corroborated by a massive study of electronic communication.

With records of 30 billion electronic conversations among 180 million people from around the world, researchers have concluded that any two people on average are distanced by just 6.6 degrees of separation, meaning that they could be linked by a string of seven or fewer acquaintances.

The database covered all of the Microsoft Messenger instant-messaging network in June 2006, or roughly half the world’s instant-messaging traffic at that time, researchers said.

“To me, it was pretty shocking. What we’re seeing suggests there may be a social connectivity constant for humanity,” said Eric Horvitz, a Microsoft researcher who conducted the study with colleague Jure Leskovec. “People have had this suspicion that we are really close. But we are showing on a very large scale that this idea goes beyond folklore.”

Continue reading at Washington Post . . .

2008 Mountain Cartography Confernce in Switzerland Approaches

Thursday, November 15th, 2007

 The 6th ICA Mountain Cartography Workshop is approaching  (11 – 15 February 2008) and I just sent in my abstract (see below). This year’s conference will be in Lenk, Switzerland and will focus on Mountain Mapping and Visualisation.

Mountain Cartography Conference

Building Smart Interactive Maps: Enabling Map Projections in Adobe Flash

Flash, Projection, Mashup, KML, Interactive

Adobe Flash allows cartographers the opportunity to build interactive graphics with rich user experiences. However, there are few cartographic tools available for Flash. Most are limited to merely integrating Google Maps, Yahoo! Maps, and Microsoft Virtual Earth services into the Flash display. What if you have created your own map with a custom graphic style and a more appropriate, non-Mercator projection? This presentation demonstrates several working examples that read data from external files and then plot features onto world, continent, and country level maps. Choropleth map shading is also supported with several classification options. Using a generalized component tool, maps can quickly be “registered” in Flash by setting several control points and providing projection parameters. More than 10 common projections are supported, including several interrupted forms. Map users are able to interact with the map by reading specific feature names, descriptions, and even data values. Flash’s ability to spatially enable your maps and its many graphic tools allowing interface customization give it a real advantage over generic online services.