2011

plot template block An AutoCAD block that contains plotting information
such as title page text, plot layouts, legend, and other map
annotation (page
2055).
point cloud A collection of points represented as an AutoCAD object.
Point Cloud Manager The main user interface for converting LiDAR data to
a point cloud database file format.
polygon A polygon is a closed area that stores information about its inner
and outer boundaries, and about other polygons nested within it or grouped
with it. In a polygon topology, the polygon can be enclosed by any lines or
arcs in the drawing. In addition, AutoCAD Map 3D supports a polygon object,
sometimes called an
Mpolygon (page 2069) or mapping polygon.
polygon topology A description of the spatial relationship between geographic
area features. Polygon topologies contain geometric links, nodes, and centroids.
Examples of polygon topologies are land use and land cover maps, political
boundaries, parcels, and soil types.
primary key The property whose value uniquely identifies each feature within
a feature class. Many feature classes use a single property for this purpose, for
example, FeatureId. However, a feature class could have a list of properties
such as street number, street name, and street type to uniquely identify a
house address. You cannot edit primary key values for joined data.
prime meridian The line of longitude drawn through Greenwich, England,
used as the origin for longitude measurements.
profile User-defined settings specific to a given drawing.
property For
feature (page 2063) data, a single attribute of a class. A class is
described by one or more property definitions. For example, a Road
feature
class
(page 2063) may have properties called Name, NumberLanes, or Location.
See also
attributes or attribute data (page 2055).
property alteration definition The definition of properties you want to
change during a query.
property data Values associated with a geographic object, such as river depth,
road width, or pipe diameter. In AutoCAD Map 3D, these items are represented
as block attributes, values in object data tables, or values in a linked external
database.
pseudo node An unnecessary node in a geometric link. A pseudo node can
be used to store information about geographic point location or to represent
change from one link to another.
Glossary | 2071