Thursday, January 31, 2008

GIS 111 Chapter 2

I learn that spatial data is often referred to as layers, coverages, or themes. Themes represent, in a special digital storage format, features on, above, or below the surface of the earth. Depending on the type of features they represent, and the purpose to which the data will be applied, themes will be one of 2 major types.

Vector data represent features as discrete points, lines, and polygons.

Raster data represent the landscape as a rectangular matrix of square cells.

Thursday, January 24, 2008

Chapter 3 Maps

Day 1- GIS 111

This class is very interesting

New To Gis

Hey this Demond and I am new to this GIS information systems. I am will to learn what is available in this intro class.