Wednesday, July 23, 2014

DLG map - Illinois and Missouri





 

Although a DLG, Digital Line Graph, uses USGS data to create maps, it does not rely on previously constructed maps, like the DRG (which scans USGS topographic maps).  Instead, a DLG uses digital vector form to represent data on a map.  This DLG map uses the SDTS (Spatial Data Transfer Standard), which makes it easier for spatial data to be transferred between different computer systems.  This DLG map shows Illinois and Missouri on a 1:24,000 scale.
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1 comment:

  1. Humaun KabirAugust 31, 2019 at 3:42 AM

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