Download Free Digital Line Graphs From 1 Book in PDF and EPUB Free Download. You can read online Digital Line Graphs From 1 and write the review.

In response to increasing information demands on its digital cartographic data, the U.S. Geological Survey has designed an enhanced version of the Digital Line Graph, termed Digital Line Graph - Enhanced (DLG-E). In the DLG-E model, the phenomena represented by geographic and cartographic data are termed entities. Entities represent individual phenomena in the real world.
This volume comprises the proceedings of the 2010 International Symposium of the ICA Commission on the History of Cartography. The nineteen papers reflect the research interests of the Commission which span the period from the Enlightenment to the evolution of Geographical Information Science. Apart from studies on general cartography, the volume, which reflects some co-operation with the ICA Commission on Maps and Society and the United States Geological Survey (USGS), contains regional studies on cartographic endeavours in Northern America, Brazil, and Southern Africa. The ICA Commission on Maps and Society participated as its field of study often overlaps with that of the ICA Commission on the History of Cartography. The USGS which is the official USA mapping organisation, was invited to emphasise that the ICA Commission on the History of Cartography is not only interested in historical maps, but also has as mandate the research and document the history of Geographical Information Science. The ICA Commission on Maps and Society participated as its field of study often overlaps with that of the ICA Commission on the History of Cartography. The USGS which is the official USA mapping organisation, was invited to emphasise that the ICA Commission on the History of Cartography is not only interested in historical maps, but also has as mandate the research and document the history of Geographical Information Science.