GIS Dictionary

p-value

A probability resulting from a statistical test of the coefficient associated with each independent variable in a regression model. ...

packet

In Survey Analyst - Cadastral Editor, an XML stream or file containing the portion of the cadastral fabric ...

page unit

The unit of measure, usually millimeters or inches, used to arrange map elements on a page for printing, as opposed ...

pan

To shift a map image relative to the display window without changing the viewing scale.

parallel

An imaginary eastwest line encircling the earth, parallel to the equator and connecting all points of equal latitude. Also, ...

parse

1 In computing, to divide a sequence of letters and numbers into parts, especially to test their agreement with ...

password

A string of characters that a user must enter to access a computer, program, database, or Web site. Passwords ...

patch

A single triangular face inside a multipatch geometry. In most cases, many patches (faces) are used together to ...

path

1 The connecting lines, arcs, or edges that join an origin to a destination. 2 In computing, ...

path label

A label that describes the nature of the association between the objects in a relationship. The forward path ...

pattern recognition

In image processing, the computer-based identification, analysis, and classification of objects, features, or other meaningful regularities within an image.

PDF

Acronym for Portable Document Format. A proprietary file format from Adobe that creates lightweight text-based, formatted files for ...

peak

1 The highest point of a mountain or hill. 2 In modeling, a point on a surface around ...

performance

A measure of the speed at which a computer system works. Factors affecting performance include availability, throughput, and response ...

photogrammetry

The science of making reliable measurements of physical objects and the environment by measuring and plotting electromagnetic radiation data from ...

photomap

An aerial photograph or photographs, referenced to a ground control system and overprinted with map symbology.

photometer

An instrument that records the intensity of light by converting incident radiation into an electrical signal and then measuring ...

pie chart

A chart shaped like a circle cut into wedges from a center point, that represents percentage values as proportionally ...

pinning

In ArcGlobe, anchoring a vector graphic element to the underlying globe surface so that it remains fixed.

pit

1 A depression in the earth's surface. 2 In modeling, a point on a surface around which all ...

pixel

1 The smallest unit of information in an image or raster map, usually square or rectangular. Pixel is ...

plan

In surveying, a high-level organization of parcels; a survey document containing data from a recorded subdivision survey plan, or ...

planarize

The process of creating multiple line features by splitting longer features at the places where they intersect other ...

plat

A survey diagram, drawn to scale, of the legal boundaries and divisions of a tract of land.

platform

In computing, the operating system of a machine, such as the UNIX, Linux, or Windows operating systems. Platform may ...

playback mode

The time mode in which data is displayed using the ArcGIS Tracking Analyst Playback Manager, replaying either real-time ...

plotter

A printing device that draws an image onto large-size paper or transparencies. Although pen and electrostatic plotters have largely ...

PLSS

Acronym for Public Land Survey System. The description of the location of land in the United States using a ...

PLTS

Acronym for Production Line Tool Set. A software package that allows users to prepare and maintain data for ...

PMF

Acronym for Published Map File. A file exported by the Publisher extension that can be read by ArcReader. ...

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