Section 1 Flashcards
Map
Representation of an area at a scale smaller than 1:1
Map abstraction
Having to leave some information off of a map
Feature
Item on a map
Spatial data
Location info of a feature
Attribute data
Other info associated w a feature
Nominal location
Name of a location
I.e. “walmart”
Absolute location
Unique set of coordinates
I.e. a home address
Relative location
In the area of
I.e. “next to the library”
Geocoding
Identifying the absolute location
Benchmark
A starting location
Landmark direction
When a benchmark is known as a grid feature
I.e. “go east on hwy 13 from cdale”
Egocentric direction
You are the benchmark
I.e. “the library is to my left”
Nominal distance
An estimation
I.e. “a 5 min walk” or “a few blocks”
Absolute distance
A # w units
Sense of direction requires 3 things
Landmark knowledge, route knowledge, survey knowledge
