Term
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Definition
| a file pathname that starts at the drive letter |
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Term
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Definition
| the data frame that is visible and responds to changes by the user |
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Term
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Definition
| a spatial condition that quantifies whether one feature touches another |
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Term
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Definition
| a process to translate, rotate or skew an image to fit a new coordinate system |
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Term
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Definition
| an alternate name displayed for a field in a table that does not have to follow length and character restrictions |
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Term
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Definition
| labels crated from map features and sorted separately for detailed editing |
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Term
|
Definition
| a function that combines features from two different feature classes |
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Term
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Definition
| a set of functions and commands for processing spatial data |
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Term
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Definition
| an international code used to store simple texts letters, numbers and symbols; synonymous with "text file" |
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Term
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Definition
| a column in a table containing information about spatial features |
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Term
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Definition
| an operation to extract specific records of information from a vile based on values in the records |
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Term
|
Definition
| a table containing rows if information for features |
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Term
|
Definition
| information about map features stored in columns of a table |
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Term
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Definition
| fitting the contents of a data from within a specified rectangle |
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Term
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Definition
| a measurement of compass direction in 360 degrees with 0=north |
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Term
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Definition
| a map projection onto a flat plane that is tangent or secant to the earth's surface |
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Term
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Definition
| a single array of values stored in a raster, which may store one array or many |
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Term
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Definition
| an object that prevents flow or travel in a network |
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Term
|
Definition
| a resampling method that interpolates a new cell value based on the four closest values |
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Term
|
Definition
| numeric data stored in base 2 as a series of ones and zeroes; a computer's native data storage format |
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Term
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Definition
| an analysis function that moves over a raster in adjacent non-overlapping neighborhoods |
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Term
|
Definition
| operators (AND, OR, NOT, XOR) that evaluate a pair of true or false propositions and return a true or false result. |
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Term
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Definition
| evaluating rasters with Boolean operators to evaluate areas where combinations of specific conditions exist |
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Term
|
Definition
| a raster with cells that contain a 1 to indicate true or 0 to indicate false regarding a specified condition |
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Term
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Definition
| the delineated area within a specified distance of a feature |
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Term
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Definition
| a unit of data storage in base 2 containing eight zeroes or ones and holding a number from 0 to 255 |
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Term
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Definition
| the relationship between records in two tables: one-to-one, one-to-many, many-to-one or many-to-many |
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Term
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Definition
| data that place objects into unranked groups; examples are land use and geology data |
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Term
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Definition
| a square data element in a raster corresponding to one value representing conditions on the ground |
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Term
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Definition
| the central longitude of a map projection for which the x coordinate equals zero |
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Term
|
Definition
| a map showing several different attributes in chart form, with one chart for each feature |
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Term
|
Definition
| assigning features to two or more groups based on numeric values in an attribute field |
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Term
|
Definition
| a raster display method that divides values into two or more groups based on their numeric values |
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Term
|
Definition
| a map in which each feature, such as state, is colored according o the values in a data field |
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Term
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Definition
| to remove features and portions of features that lie outside of the features of another layer |
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Term
|
Definition
| a set of defined colors matched to specific values to be assigned to an attribute, such as land use codes |
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Term
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Definition
| a map projection derived by projecting latitude-longitude values on a paper cone covering a sphere |
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Term
|
Definition
| a property of linear features when they are connected to each other via junctions |
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Term
|
Definition
| the property of one feature including another in whole or in part |
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Term
|
Definition
| data that take on a variety of values and that change rapidly across a data set, such as elevation |
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Term
|
Definition
| data that take on a variety of values and that change rapidly across a data set, such as elevation |
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Term
|
Definition
| a single pair of x and y values indicating position in a planar coordinate system |
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Term
|
Definition
| the range of x and y values onto which maps are plotted |
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Term
|
Definition
| 1) a specified range of x-y values onto which a map is plotted; 2) the definition of a coordinate space used by a map layer including the ellipsoid, datum and projection |
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Term
|
Definition
| 1) a specified range of x-y values onto which a map is plotted; 2) the definition of a coordinate space used by a map layer including the ellipsoid, datum and projection |
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Term
|
Definition
| the spatial data format crated for and used by ArcInfo |
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Term
|
Definition
| a resampling method that interpolates a new cell value from the 16 closest input cells |
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Term
|
Definition
| a map projection derived by projecting spherical latitude-longitude values onto a cylinder wrapped around about a sphere |
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Term
|
Definition
| a container holding layers that are viewed and analysed together; a map view |
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Term
|
Definition
| a container holding layers that are viewed and analysed together; a map view |
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Term
|
Definition
| the data frame mode optimized for the display and analysis of map data |
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Term
|
Definition
| a combination of an earth ellipsoid and a reference point to reduce mapping discrepancies |
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Term
|
Definition
| a combination of an earth ellipsoid and a reference point to reduce mapping discrepancies |
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Term
|
Definition
| a combination of an earth ellipsoid and a reference point to reduce mapping discrepancies |
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Term
|
Definition
| a database program whose file format has been adopted for the shapefile data model and tables in ArcGIS |
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Term
|
Definition
| a tool to guide the user through the task of assigning a coordinate system to a spatial data layer |
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Term
|
Definition
| a classification method in which the user specifies a size range for all the classes |
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Term
|
Definition
| an operation to set a map layer to display only he features whose attributes meet specific criteria |
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Term
|
Definition
| the measurement units used in the spherical coordinate system, a circle has 360 degrees |
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Term
|
Definition
| the table that receives data from another table during a join operation |
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Term
|
Definition
| (DEM) a raster array of values representing elevations at the earth's surface |
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Term
|
Definition
| (DRG) a scanned image of a USGS topographic map |
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Term
|
Definition
| data that take on a relatively small number of distinct values |
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Term
|
Definition
| data that take on a relatively small number of distinct values |
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Term
|
Definition
| to combine features together when they share the same value for an attribute |
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Term
|
Definition
| a join that combines the information from two feature tables based on the features that lie closest to each other |
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Term
|
Definition
| the units in which a map scale bar is measured and drawn, such as miles of kilometers |
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Term
|
Definition
| the length of one section of a scale bar as given in division units, such as 100 km |
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Term
|
Definition
| the number of sections given to a scale bar |
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Term
|
Definition
| the rule that determines the values that may be entered into an attribute |
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Term
|
Definition
| a map representing attribute values by a proportional number of randomly selected place dots |
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Term
|
Definition
| a numeric value stored using 16-bytes of information |
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Term
|
Definition
| labels determined from an attribute and played on a map automatically each time features are drawn and redrawn |
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Term
|
Definition
| labels determined from an attribute and played on a map automatically each time features are drawn and redrawn |
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Term
|
Definition
| 1) a line feature that participates in a geometric network; 2) a shared boundary between two features being edited using topology |
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Term
|
Definition
| a spheroidal volume with unequal axes, used to approximate the shape of the earth in map projections |
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Term
|
Definition
| program-level or tool-level setting that impact how tools run or set characteristics of the output such as cell size or coordinate system |
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Term
|
Definition
| a classification method in which the user specifies a number of classes that have equal size ranges |
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Term
|
Definition
| an overlay function that removes features lying inside the external boundary of another polygon feature class |
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Term
|
Definition
| the straight line distance between two points |
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Term
|
Definition
| a map layer of points created from a series of coordinate pairs in a table |
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Term
|
Definition
| to create a new data file from all or a subset of features in an existing one |
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Term
|
Definition
| a statement containing field names, values, and/or functions used to calculate values in a table |
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Term
|
Definition
| the range of x-y coordinates displayed in a map or stored in a data layer |
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Term
|
Definition
| an arbitrary x-coordinate translation applied to a map projection, usually to ensure that all values are positive |
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Term
|
Definition
| an arbitrary y-coordinate translation applied to a map projection, usually to ensure that all values are positive |
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Term
|
Definition
| a spatial object composed of one or more x-y coordinate pairs and having one or more attributes in a single record of an associated table |
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Term
|
Definition
| a set of similar objects with the same attributes stored together in a spatial data frame |
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Term
|
Definition
| a set of feature classes in a geodatabase that share a common coordinate system and can participate in networks and topology |
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Term
|
Definition
| an internet map layer in which the actual features re available for display, query and sometimes edition |
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Term
|
Definition
| (feature ID) a unique number assigned to every feature in a spatial data vile and used for identification and tracking |
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Term
|
Definition
| a single column of information in a data table |
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Term
|
Definition
| parameters specified which creating an attribute field including type of data, filed length, precision and scale |
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Term
|
Definition
| the maximum number of characters that can be stored in a text attribute field |
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Term
|
Definition
| a moving window applied to a raster data layer that calculates new values for the center pixel based on some functions of the values in the window |
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Term
|
Definition
| a constraint applied to a data frame to prevent the scale of the map from being changed in layout mode |
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Term
|
Definition
| a constraint applied to a data frame to prevent changes in scale or extent in layout mode |
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Term
|
Definition
| a marker showing a point of interest in a network, such as a start point or endpoint for a path or a stop along a route |
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Term
|
Definition
| a database that store data in simple files |
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Term
|
Definition
| raster analysis functions that determine new values for a target cell based on values in a moving neighborhood around the target |
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Term
|
Definition
| 1) a link in ArcCatalogue and ArcMap that points to a folder with GIS data and serves as a shortcut to frequently used folders; 2) a link o a DBMS allowing data to be transferred |
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|
Term
| geographic coordinate system |
|
Definition
| a spherical coordinate system of degrees of latitude and longitude that is used to locate features on the earth's surface |
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|
Term
| geographic coordinate system |
|
Definition
| a spherical coordinate system of degrees of latitude and longitude that is used to locate features on the earth's surface |
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Term
|
Definition
| the shape of the earth as defined by a mean sea level and affected by topographic and gravitational factors |
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Term
|
Definition
| a classification method that bases the class intervals on a geometric series in which each class is multiplied by a constant coefficient to produce the next higher class |
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Term
|
Definition
| a system of linear edges and point junctions used to model the flow of commodities such as traffic or utilities. |
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Term
|
Definition
| analysis of spatial data layers such as dissolving, intersecting and merging |
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Term
|
Definition
| an analysis tool provided by a GIS server in which the processing is done on the server rather than on the client's device |
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Term
|
Definition
| a spatial data layer that is tied to a specific location on the earth's surface for display with other data |
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Term
|
Definition
| a spatial data layer that is tied to a specific location on the earth's surface for display with other data |
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Term
|
Definition
| a map that divides numeric data from a polygon feature class into classes based on value and displays the classes with different colours |
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Term
|
Definition
| a map that divides numeric data from a line or point feature class into classes based on a value and displays the classes with different size or thickness of symbols |
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Term
|
Definition
| text placed on a map layout that is not associated with a feature attribute, can be manipulated by the Drawing tools |
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Term
|
Definition
| marks of a latitude and longitude placed on a map boundary |
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Term
|
Definition
| 1) specific raster format native to GRID and Spatial Analyst; 2) generic term for a raster data set |
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Term
|
Definition
| a set of points that match easily identifiable locations on two different data layers to enable georeferencing of one layer to another |
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Term
|
Definition
| a database that stores information in tables with permanent links between them |
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Term
|
Definition
| a graph showing the number of pixels contained for each data value in a raster |
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Term
|
Definition
| a raster data layer, usually referring to a raster that displays brightness values as in a photograph |
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Term
|
Definition
| combining the information from two feature tables based on one feature that lies inside another |
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Term
|
Definition
| extracting one or more feature by manually picking them from the screen with selection tools |
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Term
|
Definition
| to calculate values at locations between known measurements, to populate a raster with values extrapolated from a known set of point values. |
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Term
|
Definition
| an operation to overlay two spatial data layers and find the areas common to both while discarding areas unique to either |
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Term
|
Definition
| the property of two features touching each other in while or in part |
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Term
|
Definition
| the property of two features touching each other in while or in part |
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Term
|
Definition
| values that follow a regular scale but have no natural zero point, such as degrees Celsius or pH |
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Term
|
Definition
| a way to classify numeric data into ranges defined by naturally occurring gaps in the data histogram |
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Term
|
Definition
| the temporary combination of data from the two tables based on a common attribute field or location |
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Term
|
Definition
| a point connecting two linear edges of a geometric network |
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Term
|
Definition
| an attribute field that is used to extract or match records in a table |
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Term
|
Definition
| a spherical unit measuring angular distance north or south from the equator |
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Term
|
Definition
| the referenced latitude of a map projection where the y value is zero |
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Term
|
Definition
| a reference to a feature class and its associated properties |
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Term
|
Definition
| a reference to a feature class and its associated properties |
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Term
|
Definition
| a file that stores a pointer to spatial data along with information on how to display it |
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Term
|
Definition
| a file sent from a GIS server with the symbol properties and necessary data included for use |
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Term
|
Definition
| a mode of Arc Map that is used to design and crate a printed map and that allows manipulation of map layers, titles, scale bars, north arrows etc. |
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Term
|
Definition
| a mode of ArcMap that is used to design and crate a printed map and that allows manipulation of map layers, titles, scale bars, north arrows etc. |
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Term
|
Definition
| a measure of how well data features represent real-word features in particular with respect to topology |
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Term
|
Definition
| a statement composed of field names, operators and values that specifies criteria used to select records or values from a layer on a table |
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Term
|
Definition
| information stored in separate tables keeps track of relationships between elements of a network |
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Term
|
Definition
| functions such as >, <, or = that compare values and generate a true or false result |
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Term
|
Definition
| a spherical unit of measuring angular distance east or west of the Prime Meridian |
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Term
|
Definition
| the part of an exponential number that stores the significant digits |
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Term
|
Definition
| a system that permits calculations and operations on entire raster arrays, such as adding two rasters together |
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Term
|
Definition
| objects placed on a map layout, such as titles, legends, scale bars, north arrows, images and charts |
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Term
|
Definition
| the range of x-y values of the area being displayed on the map |
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Term
|
Definition
| to combine two spatial data layers, either for display or to evaluate the relationships between them |
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Term
|
Definition
| the units of the coordinate system in which a map is stored or displayed |
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Term
|
Definition
| a data frame grid that provides measured x-y coordinate system values around the perimeter of the frame |
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Term
|
Definition
| 1) to combine two or more map features into one feature; 2) to combine two or more data layers into a single layer |
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Term
|
Definition
| information stored about data to document its source, history, management, uses and more |
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Term
|
Definition
| a graphical interface used to combine existing tools to create new tools and scripts |
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Term
|
Definition
| a single feature composed of nontouching units, such as a single state feature composed of the seven Hawaiian islands |
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Term
|
Definition
| a resampling method for discrete data that grabs the closest value to a cell center |
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Term
|
Definition
| a line used to enclose one or more map elements in a rectangle |
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Term
|
Definition
| calculation of a value for a target cell or feature based on surrounding values from a defined region |
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Term
|
Definition
| an association of linear edges and connecting points, used to model the flow of a commodity, such as traffic or utilities |
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Term
|
Definition
| values associated with network elements that indicate the "cost" to traverse the element |
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Term
|
Definition
| a special value used to designate that a data value is absent or unknown |
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Term
|
Definition
| the beginning and endpoint of a line feature |
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Term
|
Definition
| values that name or identify an object such as a street name |
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Term
|
Definition
| to divide the values of an attribute field by the total of the field or by the values in another field |
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Term
|
Definition
| (NAD) a combination of a spheroid and reference point that is used to minimize map distortion in North America |
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Term
|
Definition
| values stored as numbers rather than names or categories |
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Term
|
Definition
| a map projection in which locations on a sphere are projected into a cylinder of cone of paper at an arbitrary angle |
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Term
|
Definition
| data values that indicate a rank or ordering system |
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Term
|
Definition
| the (0,0) point of a coordinate system |
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Term
|
Definition
| a map projection in which locations on a sphere are projected onto a planar surface |
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Term
|
Definition
| a spatial condition that quantifies whether one feature covers all or part of another feature |
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|
Term
|
Definition
| 1) specific value associated with map projections that define how it appears; 2) a variable that serves as an input method to a model |
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Term
|
Definition
| 1) specific value associated with map projections that define how it appears; 2) a variable that serves as an input method to a model |
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Term
|
Definition
| a list of the folders that must be transversed to locate a particular file such as c:\mgisdata\usa\states.shp |
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Term
|
Definition
| an association of feature classes in a feature dataset established by rules regarding the spatial relationships between features, such as not overlapping each other |
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Term
|
Definition
| a one-dimensional feature defined by a single x-y coordinate pair |
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Term
|
Definition
| a closed, two dimensional area feature defined by three or more x-y coordinate pairs |
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Term
|
Definition
| the number of digits allotted to store a numeric value |
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|
Term
|
Definition
| the number of digits allotted to store a numeric value |
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Term
|
Definition
| the line of zero longitude on the earth, passing through Greenwich England |
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Term
|
Definition
| a tool that converts a feature class from one coordinate system to another |
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|
Term
|
Definition
| a mathematical transformation that converts spherical units of latitude and longitude to a planar x-y coordinate system |
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|
Term
|
Definition
| a map that displays attribute values with marker or line symbols that are proportional in size relative to the value of the feature |
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|
Term
|
Definition
| the property of one feature being close to another feature |
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Term
|
Definition
| a set of rasters with different resolutions that is calculated from a raster and sued to speed displays at smaller scales |
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|
Term
|
Definition
| a classification method that divides the data into the specified number of quantiles, so that each class has the same number of features |
|
|
Term
|
Definition
| an operation to extract records from a database according to a specified set of criteria |
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|
Term
|
Definition
| an operation to extract records from a database according to a specified set of criteria |
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|
Term
|
Definition
| a data set composed of an array of numeric values, each of which represents a condition in a square element of ground |
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|
Term
|
Definition
| data having a regular scale of measurement and a natural zero point, such as precipitation or population |
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|
Term
|
Definition
| to replace sets or ranges of values in a raster with different sets or ranges of values |
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|
Term
|
Definition
| a row in a table containing one object |
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|
Term
|
Definition
| to rotate, resize or wrap an image to match a map base using a selected set of ground control points |
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|
Term
|
Definition
| a dataframe grid that provides lettered and numbered squares on a map for use with an index of the features |
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|
Term
|
Definition
| the scale at which text or symbols appear at their assigned size |
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Term
|
Definition
| the latitude of origin, see also latitude of origin |
|
|
Term
|
Definition
| a temporary association between two tables based on a common field whereby fields may be selected based on whether they match selected records in he other table |
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|
Term
|
Definition
| a database that stores information in tables and constructs temporary relationships between them |
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|
Term
|
Definition
| path to a file that starts in the current folder |
|
|
Term
|
Definition
| to change the resolution of a raster using a defined strategy to convert values from one cell grid to another |
|
|
Term
|
Definition
| 1) the ground area represented by one cell value in a raster; 2) the default storage precision of a vector data set |
|
|
Term
|
Definition
| 1) the ground area represented by one cell value in a raster; 2) the default storage precision of a vector data set |
|
|
Term
|
Definition
| an image displayed by assigning one band of brightness information to each red, green and blue color gun in a display monitor |
|
|
Term
|
Definition
| the root mean squared differences between a set of original and translated points |
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|
Term
|
Definition
| a process to deform a raster to fit it to a new coordinate system |
|
|
Term
|
Definition
| each record in the destination table must have one and only one matching record in the source table |
|
|
Term
|
Definition
| the range of scales for which a data layer will be displayed, set by the user to avoid clutter, or the display of layers at inappropriate scales |
|
|
Term
|
Definition
| the range of scales for which a data layer will be displayed, set by the user to avoid clutter, or the display of layers at inappropriate scales |
|
|
Term
|
Definition
| a program including ArcGIS' commands and functions |
|
|
Term
|
Definition
| a map projection in which spherical coordinates are projected onto a surface that intersects the sphere along two great circles |
|
|
Term
|
Definition
| to choose a subset of features or table objects based on the values in one or more attribute fields |
|
|
Term
|
Definition
| to choose a subset of features based on their spatial relationship to other features |
|
|
Term
|
Definition
| the set of features that has been extracted prior to another operation; the result of a query |
|
|
Term
|
Definition
| a setting that controls what happens to previously and newly selected objects when a new selection is made |
|
|
Term
|
Definition
| a join that combines two layers according to common locations when a one-to-one spatial relationship exists between the layers |
|
|
Term
|
Definition
| a numeric value stored using eight bytes of information |
|
|
Term
|
Definition
| a location on a network that pulls or consumes the commodity flowing through the network |
|
|
Term
|
Definition
| to divide the values in a raster onto a specified number of even classes |
|
|
Term
|
Definition
| small polygon crated during map overlay due to slight boundary differences in the inputs; usually considered an error |
|
|
Term
|
Definition
| program that analyzes flows or paths through a network |
|
|
Term
|
Definition
| 1) a location that produces or initiates the flow of a commodity through a network; 2) a spatial data file that provides the features for a map layer; 3) the original information used to develop a spatial data set |
|
|
Term
|
Definition
| 1) a location that produces or initiates the flow of a commodity through a network; 2) a spatial data file that provides the features for a map layer; 3) the original information used to develop a spatial data set |
|
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Term
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Definition
| the table that provides the information to be appended to another table in a join |
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Definition
| a model that stores spatial features as a series of x-y coordinates and does not store topological relationships between features |
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Definition
| a function that combines the attributes of features in two layers based on containment or distance |
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Definition
| a set of functions that evaluate spatial relationships including intersection, containment and proximity between sets of features |
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Definition
| an operation to extract records from a data layer based on location relative to another data layer |
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Definition
| the complete description of how the spatial data are stored for a feature class that includes the coordinate systems, the X/Y domain and the precision |
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Definition
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Definition
| a table of information not linked to spatial data features |
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Definition
| a classification scheme in which the class breaks are based on the standard deviation values of the data being mapped |
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Definition
| parameter of a map projection indicating the latitude(s) at which the projection surface lies tangent or secant to the sphere |
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Definition
| (SPCS) a group of projections defined for different regions of the united states and designed to minimize map distortions |
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Definition
| a map projection in which locations on a sphere are projected onto a planar surface |
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Definition
| a display method that spreads the data values over the entire range of symbols available |
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Term
| Structured Query Language (SQL) |
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Definition
| an established syntax for creating local expression to extract records from a database according to specified criteria |
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Definition
| the number of units into which a single division of a scale bar is split, usually appearing on the left |
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Term
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Definition
| a function that groups records in a table according to one categorical field and calculates statistics for each group |
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Term
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Definition
| a join that combines the records of two attribute tables with a one-to-many cardinality by assigning each output record a single value derived statistically from many input values |
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Term
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Definition
| functions designed for application to rasters representing a three dimensional surface, such as elevation |
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Term
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Definition
| data stored as an array of rows and columns, with each row representing an object or a feature and each column representing an attribute or a property of that object |
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Definition
| the ArcMap window that lists the data frames and layers in the map document |
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Term
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Definition
| a map projection in which spherical coordinates are projected upon the surface that lies tangent to the sphere along one line of latitude |
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Definition
| a raster that contains categorical or nominal data values, such as land use codes or soil types |
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Term
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Definition
| the degree to which attribute values represent the true properties in the real world |
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Definition
| displaying the features of a spatial data layer based on values in its attribute table |
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Definition
| a data model that stores spatial relationships between features in addition to their x-y coordinates |
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Term
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Definition
| to follow an existing linear feature, as when analysing network paths or creating a new feature that follows an existing one |
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Definition
| conversion of one geographic coordinate system and datum to another |
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Definition
| a map projection in which spherical coordinates are projected onto a cylinder or cone in tangent to the sphere along a line of longitude |
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Definition
| an operation to create a new feature or set of features by combining all the areas from two input layers |
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Term
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Definition
| a map in which each attribute value is assigned its own symbol |
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Term
| Universal Transverse Mercator |
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Definition
| (UTM) a family of map projections defined for 60 zones around the world and based on a transverse cylindrical projection |
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Term
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Definition
| a spatial data storage method in which features are represented by one or more pairs of x-y coordinate values forming lines, point or polygons |
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Definition
| a diagram used in set theory to portray sets and subsets |
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Definition
| a point at which the segments of a line or polygon feature change direction |
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Definition
| an interactive map based solely on Internet data servers and access from many platforms including desktop software, web pages and mobile devices |
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Definition
| a text file containing the georeferenced information for a raster |
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Definition
| the maximum allowable range of values stored by a feature class |
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Definition
| a setting used for geoprocessing that defines the minimum allowable stance between vertices |
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Definition
| an angular measure of the distance of an object above the horizon |
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Definition
| raster analysis functions that calculate statistics from one raster for zones defined by a different user |
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Term
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Definition
| the combined area of a raster that share the same attribute value such as all areas with the commercial land use code |
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