SAMPLING THE WORLD

SAMPLING THE WORLD - SAMPLING THE WORLD INTRODUCTION the...

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SAMPLING THE WORLD INTRODUCTION the world is infinitely complex the contents of a spatial database represent a particular view of the world the user sees the real world through the medium of the database o the measurements and samples contained in the database must present as complete and accurate a view of the world as possible o the contents of the database must be relevant in terms of: themes and characteristics captured the time period covered the study area this unit looks at techniques for sampling the world, and associated issues of accuracy, standards REPRESENTING REALITY a database consists of digital representations of discrete objects the features shown on a map, e.g. lakes, benchmarks, contours can be thought of as discrete objects o thus the contents of a map can be captured in a database by turning map features into database objects many of the features shown on a map are fictitious and do not exist in the real world o contours do not really exist, but houses and lakes are real objects
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This note was uploaded on 12/04/2011 for the course FRE 1120 taught by Professor Celiaroberts during the Fall '10 term at Broward College.

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SAMPLING THE WORLD - SAMPLING THE WORLD INTRODUCTION the...

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