Chapter 3 Flashcards
(21 cards)
Map elements
Objects placed on a map layout, such as titles, legends, scale bars, north arrows, images, and charts.
Neatline
A line used to enclose one or more map elements in a rectangle.
North American Datum (NAD)
A combination of a spheroid and reference point that is used to minimize map distortion in North America.
Projection
A mathematical transformation that converts spherical units of latitude and longitude to a planar x-y coordinate system.
Datum
A combination of an earth ellipsoid and a reference point to reduce mapping discrepancies for a particular region.
Graticules grid
Mark of latitude and longitude placed on a map boundary.
Measurement grid
A data frame grid that provides measured x-y coordinate system values around the perimeter of the frame.
Reference Grid
A data frame grid that provides lettered and numbered squares on a map for use with an index of the features.
Chart
A graph created in Arcmap from table data, such as bar charts and pie charts.
Map extent
The range of x-y values of the area being displayed in a map.
Automatic scaling
Fitting the contents of a data frame within a specified rectangle.
Fixed scale
A constraint applied to a data frame to prevent the scale of the map from being changed in layout mode.
Fixed extent
A constraint applied to a data frame to prevent changes in scale or ewxtent in layout mode.
Divisions
The number of sections given to a scale bar.
Subdivisions
The number of units into which a single division of a scale bar is split, usually appearing on the left end of the scale bar.
Division Units
The units in which a map scale bar is measured and drawn, such as miles or kilometers.
Division Value
The length of one section of a scale bar as given in division units, such as 100km.
Dynamic Labels
Labels determined from an attribute and placed on a map automatically each time features are drawn and redrawn.
Graphic Text
Text placed on a map layout that is not associated with a feature attribute; can be manipulated by the Drawing tools.
Annotation
Labels created from map features and stored separately for detailed editing.
Reference Scale
The scale at which text or symbols appear at their assigned size.