ISO 19117:2012 地理情報—描写 | ページ 6

4.1

annotation

any marking on illustrative material for the purpose of clarification

Note 1 to entry: Numbers, letters, symbols (4.31) , and signs are examples of annotation.

4.2

class

description of a set of objects that share the same attributes, operations, methods, relationships and semantics

Note 1 to entry: A class may use a set of interfaces to specify collections of operations it provides to its environment. See: interface.

[SOURCE:SOURCE: ISO/TS 19103:2005, definition 4.27]

4.3

complex symbol

symbol (4.31) composed of other symbols of different types

4.4

compound symbol

symbol (4.31) composed of other symbols of the same type

4.5

conditional feature portrayal function

function (4.11) that maps a geographic feature (4.8) to a symbol (4.31) based on some condition evaluated against a property or attribute of a feature

4.6

curve

1-dimensional geometric primitive (4.13) , representing the continuous image of a line

[SOURCE:SOURCE: ISO 19107:2003, definition 4.23]

4.7

dataset

identifiable collection of data

Note 1 to entry: A dataset may be a smaller grouping of data which, though limited by some constraint such as spatial extent or feature (4.8) type, is located physically within a larger dataset. Theoretically, a dataset may be as small as a single feature or feature attribute (4.9) contained within a larger dataset. A hardcopy map or chart may be considered a dataset.

[SOURCE:SOURCE: ISO 19115:2003, definition 4.2]

4.8

feature

abstraction of real world phenomena

Note 1 to entry: A feature may occur as a type or an instance (4.14) . Feature type or feature instance shall be used when only one is meant.

[SOURCE:SOURCE: ISO 19101:2002, definition 4.11]

4.9

feature attribute

characteristic of a feature (4.8)

Note 1 to entry: A feature attribute has a name, a data type, and a value domain associated to it. A feature attribute for a feature instance (4.14) also has an attribute value taken from the value domain.

Note 2 to entry: In a feature catalogue, a feature attribute may include a value domain but does not specify attribute values for feature instances.

[SOURCE:SOURCE: ISO 19101:2002, definition 4.12]

4.10

feature portrayal function

function (4.11) that maps a geographic feature (4.8) to a symbol (4.31)

4.11

function

rule that associates each element from a domain (source, or domain of the function) to a unique element in another domain (target, co-domain, or range)

[SOURCE:SOURCE: ISO 19107:2003, definition 4.41]

4.12

geographic information

information concerning phenomena implicitly or explicitly associated with a location relative to the Earth

[SOURCE:SOURCE: ISO 19101:2002, definition 4.16]

4.13

geometric primitive

geometric object representing a single, connected, homogeneous element of space

[SOURCE:SOURCE: ISO 19107:2003, definition 4.48]

4.14

instance

object that realizes a class (4.2)

[SOURCE:SOURCE: ISO 19107:2003, definition 4.53]

4.15

layer

basic unit of geographic information (4.12) that may be requested as a map from a server

[SOURCE:SOURCE: ISO 19128:2005, definition 4.6]

4.16

metadata

data about data

[SOURCE:SOURCE: ISO 19115:2003, definition 4.5]

4.17

parameterized feature portrayal function

function (4.11) that maps a geographic feature (4.8) to a parameterized symbol (4.18)

Note 1 to entry: A parameterized feature portrayal function (4.10) passes the relevant attribute values from the feature instance (4.14) for use as input to the parameterized symbol (4.31) .

4.18

parameterized symbol

symbol (4.31) that has dynamic parameters

Note 1 to entry: The dynamic parameters map to the attribute values of each feature (4.8) instance (4.14) being portrayed.

4.19

point

0-dimensional geometric primitive (4.13) , representing a position

[SOURCE:SOURCE: ISO 19107:2003, definition 4.61]

4.20

portrayal

presentation of information to humans

Note 1 to entry: Within the scope of this International Standard, portrayal is restricted to the portrayal of geographic information.

4.21

portrayal catalogue

collection of defined portrayals (4.20) for a feature (4.8) catalogue

Note 1 to entry: Content of a portrayal catalogue includes portrayal functions (4.23) , symbols (4.31) , and portrayal context (4.22) (optional).

4.22

portrayal context

circumstances, imposed by factors extrinsic to a geographic dataset (4.7) , that affect the portrayal (4.20) of that dataset

Note 1 to entry: Portrayal context can influence the selection of portrayal functions (4.23) and construction of symbols (4.31) .

4.23

portrayal function

function (4.11) that maps geographic features (4.8) to symbols (4.31)

Note 1 to entry: Portrayal (4.20) functions can also include parameters and other computations that are not dependent on geographic feature properties.

4.24

portrayal function set

function (4.11) that maps a feature (4.8) catalogue to a symbol set (4.35)

4.25

portrayal rule

specific type of portrayal function (4.23) expressed in a declarative language

Note 1 to entry: A declarative language is rule-based and includes decision and branching statements.

4.26

portrayal service

generic interface used to portray features (4.8)

4.27

render

conversion of digital graphics data into visual form

4.28

simple symbol

symbol (4.31) that is neither compound nor parameterized

4.29

spatial attribute

feature attribute (4.9) describing the spatial representation of the feature (4.8) by coordinates, mathematical functions (4.11) and/or boundary topology relationships

4.30

surface

2-dimensional geometric primitive (4.13) , locally representing a continuous image of a region of a plane

[SOURCE:SOURCE: ISO 19107:2003, definition 4.75]

4.31

symbol

portrayal (4.20) primitive that can be graphic, audible, or tactile in nature, or a combination of these

4.32

symbol component

symbol (4.31) that is used as a piece of a compound symbol (4.4)

4.33

symbol definition

technical description of a symbol (4.31)

4.34

symbol reference

pointer in a feature portrayal function (4.10) that associates the feature type with a specific symbol (4.31)

4.35

symbol set

collection of symbols (4.31)

Note 1 to entry: Symbol sets are usually designed for a community of interest to portray information of interest to the community.