1) Definitions: (20 pts; 2 pts each) USE FIGURE, IF POSSIBLE a. topology- b. att
ID: 114727 • Letter: 1
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1) Definitions: (20 pts; 2 pts each) USE FIGURE, IF POSSIBLE a. topology- b. attribute- c. cadastre- d. terrain trafficability functions- e. digital elevation model f. line coordinate thinning- g. arc/node- h. thiessen polygons- i. internet j. edge matching- 2) Describe three uses of a GIS that exemplify the diversity of possible applications. (15 pts) a) b) c) 3) A GIS may be viewed as the latest method for capturing, displaying, analyzing and understanding the spatial world. Why do humans engage in this activity? Describe the development of this intellectual activity through time. (10 pts) 4) List five methods of data input for a GIS? (5 pts) a. b. C. d. e.Explanation / Answer
a. Topology: It is a branch of mathematics which deals with the properties of configurations which are unaltered by elastic deformations. Example: set of points, curves. b. Attribute: It is a piece of information which determines the properties of a field in a database or a string of characters in a display. c. Cadastre: It is a record of property lines and boundaries of a country used in cadastral surveying. d. Terrain trafficability functions: It is a quality of a terrain which allows vehicular traffic to pass through. It is an extent to which the terrain will permit continued movement of any type of traffic.
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