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Learning ArcGIS Pro

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including the referenced data. It is used to share projects with those that do not have<br />

access to your data or to archive projects at specific points in a project cycle. Since these<br />

contain everything found in a project, they can get very large. It has a .ppkx file extension.<br />

<strong>Pro</strong>jection: This is the representation of the Earth’s curved 3D surface on a 2-dimensional<br />

surface (flat map). There are many types of projections. Each is designed to reduce<br />

distortion, which can be caused in four different properties: Shape, Area, Distance, and<br />

Direction. The projection is part of a projected coordinate system’s definition.<br />

Python: This is the primary scripting language for <strong>ArcGIS</strong>. Python is a programming<br />

language that allows you to create the script to help automate and schedule processes.<br />

Python is not only limited to <strong>ArcGIS</strong> but can also be used with many other applications.<br />

Query: Basically, this is a question used to select features that have specific attribute<br />

values or relationships. Within <strong>ArcGIS</strong>, there are two basic types of selection queries:<br />

Select by Attribute and Select by Location. Select By Attribute will select features in a<br />

layer based on value criteria the user enters, such as Parcel Owner Name = John Smith<br />

or Pipe Size > 6. Select By Location sometimes refers to a spatial query, selects<br />

features in one or more layers based on their spatial relationship, such as all parcels within<br />

the city limits or all roads in a distance of 100 feet from a hospital.<br />

Raster: This is a simple storage model for spatial data. It stores information using equalsized<br />

cells. Each cell is assigned a number. This number can represent things such as<br />

counts, color, elevation, temperature, wind speed, average rainfall, population density, and<br />

so on. A raster is often associated with, but not limited to, aerial photography, Digital<br />

Elevation Models (DEMs), Land Use Classification, and Vegetation Classification.<br />

Relate: This is one of the two ways to link two tables together in ArcMap or <strong>ArcGIS</strong> <strong>Pro</strong>.<br />

It can be used with any cardinality but recommended when you have a one to many or<br />

many to many cardinality. It links the two tables together so that when you select records<br />

in the primary table, the related records in the secondary table are highlighted. You cannot<br />

symbolize, query or label using data found in the secondary table when a relate is used.<br />

Ribbon: This is the primary user interface used by <strong>ArcGIS</strong> <strong>Pro</strong>. It consists of a rectangular<br />

area located at the top of the interface, which contains various tabs. Each tab contains<br />

tools that access <strong>ArcGIS</strong> <strong>Pro</strong> functionality. Which tabs are visible will depend on the<br />

user’s current actions and what is highlighted or selected within the interface.<br />

Scene: This is a collection of related layer that can be viewed in 3D. These are stored<br />

within <strong>ArcGIS</strong> <strong>Pro</strong> <strong>Pro</strong>jects. They can also be created and viewed with ArcGlobe and<br />

ArcScene, which are part of the 3D Analyst extension for <strong>ArcGIS</strong> for Desktop. In this<br />

case, they are actually separate files with either a .3dd or .sxd file extension.<br />

Shapefile: Shapefiles are the native format for Esri’s ArcView 3.x and earlier. This format<br />

has become the de facto data transfer format for GIS. Many GIS and GPS packages have<br />

the ability to read, import, and export Shapefiles. A Shapefile stores a single feature class<br />

(that is, point, line, or polygon). Viewed as a single file by <strong>ArcGIS</strong> software, it is actually<br />

made up of multiple files (SHP, SHX, DBF, and others). Shapefiles are one of the two data<br />

formats that are editable within <strong>ArcGIS</strong>.

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