Lecture18

Lecture18 - Feature Types: Objects Geography 12: Maps and...

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1 Geography 12: Maps and Spatial Reasoning Lecture 18: Measuring shape and distribution Professor Keith Clarke Feature Types: Objects Features Collectively: Landscape Shape, Distribution, Arrangement and Pattern • One feature can have shape • Many features of one type can have a distribution • Features of different types show arrangements • One or more features of one or more types can have pattern
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2 Features on maps: Shape Shape properties • Natural vs. geometric • Circular vs. Linear • Circular vs. Fragmented • Correspondence to another shape • How measured? – Value should be unique – Should be able to get shape from measure Distribution • Clustered vs. Dispersed • Random vs. Ordered Arrangement
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3 Pattern: repetition Measurement • Shape – Miller – Bunge –Boyce-C lark – Fourier measures • Distribution – Quadrat analysis – Nearest neighbor analysis Shape Measurement • Miller’s measure: covered in lab • Book explains Boyce-Clark radial shape method • Will cover Bunge’s method here • Set of distance measurements taken between systematically places vertices on the perimeter of the shape in question
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This note was uploaded on 12/27/2011 for the course GEOG 12 taught by Professor Gautier during the Fall '08 term at UCSB.

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Lecture18 - Feature Types: Objects Geography 12: Maps and...

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