GEOG281 Lecture Notes - Lecture 3: Choropleth Map, Terrain Cartography, Main Source

• School: University of Waterloo
• Department: Geography and Environmental Management
• Course: GEOG281
• Professor: Su Yin Tan

Document Summary

A representaion, normally to scale and on a lat medium, of a selecion of material or abstract features on, or in relaion to, the surface of the earth: maps show more than the earth"s surface. The term map is used loosely to refer to any visual display of informaion, paricularly if it is abstract, generalized or schemaic. Selecion of the few features in the real world to include. Simpliicaion involving eliminaion, aggregaion, smoothing (i. e. of jagged lines like coastlines) Exaggeraion and displacement of features to be included that are too small to show at the scale of the map (i. e. highways) Classiicaion or other atribute data manipulaion (to reduce complexity and organize mapped informaion for communicaion) Symbolizaion to represent the diferent classes of features chosen. How are maps related to gis: maps are the main source of data for gis. Gis has roots in the analysis of informaion on maps.