Tuesday, March 19, 2013

World polygon maps - countries and continents


The Humanitarian Information Unit (HIU) of the U.S. Department of State publishes and updates vector data of international boundaries, coastlines and islands, including their sovereignty. This data is called "Large Scale International Boundaries" (LSIB).

The latest March 2013 update contains datasets of simplified world polygons (countries and continents worldwide) plus detailed boundaries by individual continents. These datasets contain also metadata with names of the countries, country codes by ISO 3166-1 and assigned internet domains. Data is published in the "Shape" (SHP) format and in the WGS84 coordinate system - so it can be directly read into AutoCAD Map, Civil 3D and other mapping and GIS applications.

You can publish this large scale data from AutoCAD Map to the DWF format. This format maintains both the georeference information and the attached metadata - you can make use of this efficient publishing format to view maps in the free viewer Autodesk Design Review, in your internet browser, or on a mobile device. For comparison - the simplified worldwide boundaries map is 131 MB in the "shape" format, the processed DWG file exported from Map, World.dwg is 58 MB, the published DWFx file - World-LSIB is a mere 4 MB.


You can use Autodesk Design Review to view and print maps, when you click on an object (country), it displays the attached metadata. If you run Design Review on a notebook or tablet equipped with GPS, you can display your current position on the map.

The DWFx output files of the individual continents processed in AutoCAD Map from the LSIB sources can be found in the Block library on CADforum.cz - see www.cadforum.cz/catalog_en/?q=US-DoS

via Disruptive Geo

No comments:

Post a Comment

Post a Comment