Pathfinder Office, ArcView, and ArcExplorer can all display background image files,
such as Digital Raster Graphics (scanned images of USGS quad maps). These DRG files
are often available for free on the Internet; for example, the Idaho Department of Lands
and the Montana State Library both make collarless DRG’s available for free. (Since
DRG’s are simply scanned images of USGS quad maps, they have the white border, or
‘collar,’ with the title, scale, etc. on them. Some agencies have removed these collars
from their downloadable DRG’s so they can be tiled.)
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GIS Weekly Magazine
Susan Smith
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Look for the next issue of GIS Weekly Magazine on May 28, 2012.
Each GISWeekly Review delivers to its readers news concerning the latest developments in the GIS industry, along with a selection of other articles that we feel you might find interesting. |
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