Geographic(type of geospatial data)

refers to the geoid/earth's surface and near-surface

Spatial (type of geospatial data)

Refers to any space (any relationship that relies on measurable distance)

Geospatial in general

refers to a subset of spatial that is applied to the earth’s surface/near-surface

Aggregate Data

refers to individual data that are averaged by geographic area, by year, by service agency, or by other means

Individual Data

Individual data are disaggregated individual results and are used to conduct analyses for estimation of subgroup differences.

Discrete Data

Discrete data, also known as categorical or discontinuous data, mainly represents objects in both the feature and raster data storage systems. A discrete object has known and definable boundaries. It is easy to define precisely where the object begins and ends. A lake is a discrete object within the surrounding landscape. Where the water's edge meets the land can be definitively established. Other examples of discrete objects include buildings, roads, and land parcels. Discrete objects are usually nouns.

Continuous Data

Continuous data, or a continuous surface, represents phenomena where each location on the surface is a measure of the concentration level or its relationship from a fixed point in space or from an emitting source. Continuous data is also referred to as field, nondiscrete, or surface data.

Field Based Data (the data that can be displayed on a map.

object based

Treats the as physical objects(river, cities etc)

Field based data

field-based data model sees the world as a continuous surface over which features

Feature Classes

Objects are assigned a feature class where each feature class only hosts one geometry type (point, line, polygon, etc).

Cartesian Coordinate System

where coordinates (x,y) determine location

Spherical Coordinate System

coordinates of two angels determine location(theta and another greek symbol idk)

The difference between topology and geometry

Geometry (points) describes the form of an object while topology(edges) describes the positional relationship of objects.

calculating distance as the crow flies

If cartesian coordinates are used simply use the Pythagorean theorem

Bolean Algerbra

AND OR NOT

Selecting by Attribute

provides information about a feature or raster cell, like a building feature could contain a attribute such as the city the name etc.

Field based modelling is preformed? Teselleation?

overlap free gapless coverage of a surface, or grids of squared cells(raster) or irregular triangulated networks

Raster Data

Matrix of cells of equal size each cell has a value that represents information

TIN is created by

meshing 3D coordinate into irregular traingles

Resolution

The size of specific raster cells(pixels)

Meridian

Imaginary line that runs from the North to the South poles of the globe used to determine longitude.

(prime meridian) Greenwich meridian meridian

indicates zero degrees of longitude(It passes through Greenwich, a borough of London, and terminates at the North and South)

Thematic Data

Height Species Vitality

Geometrical Data

point geo spatial point set coordinate system

Topological Data

geospatial positions

null dimensional objects are represented or shown how in a map?

points

How are one dimensional objects represented in a map (vector data)?

Lines

3-D dimensional objects

Represented through polygons lines connected together(i.e areas)