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Feature class

GIS  Feature attribute table  Feature Code

Feature classes are homogeneous collections of common features, each having the same spatial representation, such as points, lines, or polygons, and a common set of attribute columns, for example, a line feature class for representing road centerlines.

Feature Class
1. The type of feature represented in a coverage. Coverage feature classes include arcs, nodes, label points, polygons, tics, annotation, links, boundaries, routes, and sections.

CAD feature class
[ESRI software] A read-only member of a CAD feature dataset, comprised of one of the following: polylines, points, polygons, multipatch, or annotation.

Oracle Feature Classes are Greyed-Out - cannot Add to Map
You have used Data Connect to create a successful connection to an Oracle database, but when you browse through the feature classes, all are greyed out and unavailable to Add to Map.

Feature class representations symbolize layers in a framework that is stored and accessible from within the source geodatabase. Representations can be used as the basis for layer display, dictating how the features of the source feature class should be symbolized.

embedded ~ - [3D GIS] A multipoint feature class embedded into a terrain dataset. When a ~ is embedded, it is incorporated directly into the terrain pyramid and the terrain becomes the sole container of the data.

A term used to define coverage elements such as arcs, nodes, or polygons.
Georeference ...

~1. A classification describing the format of geographic features and supporting data in a coverage. Coverage ~es for representing geographic features include point, arc, node, route-system, route, section, polygon and region.

The ~ To ~ dialog will open, automatically containing the boundary ~ as the Input Features.

Complex ~
A ~ that includes two or more other ~es (simple or complex).
Complex Polygon ...

The ~es could be defined gradually, in senses of both variety and deepness. Only such general classes should be defined formally which are acceptable for the majority of all related branches. The hierarchy inside these classes allows more flexibility in subclass definitions.

Import 1 ~ and reproject and rename geometry column. This example brings in a ~ that is of projection NAD 83 MA meters and transforms to NAD 83 longlat and also renames the ~ ma_hydro ...

In the Create ~ dialog set the output location as projection_lab_data, this might be a tricky. To do this you need tell ArcToolbox where to write the shapefile (the path to your data folder).

~ - ~es are classifications and representations of geographic features and supporting data in coverages. ~es represented as geographic features include points, arcs, nodes, route-systems, routes, sections, polygons, and regions.

Below the layer list there is a set of ~ Export Options These are how you tell sketchup the 3d properties of your buildings.
Set your Extrude Distance Field to be the Roof attribute for each building.
Set your Offset Field to gnd ...

4. What Geodatabase ~es and rules are supported by the ProjectWise Connector for ArcGIS?

Edge Match An editing procedure to ensure that all features crossing adjacent map sheets have the same edge locations attribute descriptions, and ~es. Electromagnetic spectrum The range of wavelengths of energy some of which can be recorded by a remote sensing device.

SEC Section table for the section ~ in a coverage. The SEC holds attributes about sections.

For example, the linear feature class might include the subclass "vehicle transportation lines" with the extended data characteristic of "number of potholes.

The semantics associated with an information community (as listed in the OpenGIS Guide) include: metadata to describe the content of feature collections; ~ definitions; attribute definitions; valid feature and attribute relationships; data capture guidelines for features and attributes; ...

The file geodatabase incorporates new tools such as domains (rules applied to attributes), subtypes (groups of objects with a ~ or table), and split/merge policies (rules to control and define the output of split and merge operations).

2 [ESRI software] In ArcGIS, a reference to a data source, such as a shapefile, coverage, geodatabase ~, or raster, that defines how the data should be symbolized on a map. Layers can also define additional properties, such as which features from the data source are included.

Feature Alignment-- The source datasets consists of features from two or more different ~es that bear some defined relationship to each other. An example of this is aligning the boundaries of different kinds of ~es such as municipal districts and lot parcels.

to binary large object (BLOB) data stored directly in a relational database management system (RDBMS) similar to other vector-based ~es.

Polygon: A coverage ~ used to represent areas. A polygon is defined by the arcs that make up its boundary and a point inside its boundary for identification. Polygons have attributes that describe the geographic feature they represent.

A coverage ~ used to represent linear features and polygon boundaries. One linear feature can contain many arcs.
In CAD it is a curvilinear feature defined by such location combinations as Center point, radius, and starding point.

Various types of geographic datasets can be collected within a geodatabase, including ~es, attribute tables, raster datasets, network datasets, topologies, and many others.

It is a continuous string of XY coordinate pairs (vertices) beginning at one location and ending at another location, having length but no area.
A coverage ~ used to represent linear features and polygon boundaries. One linear feature can contain many arcs.

A shapefile is a vector data format for storing the location, shape, and attributes of geographic features. A shapefile is stored in a set of related files and contains one ~.
Scalable Vector Graphics ...

Extracted coordinates for features from scanned maps or aerial photographs may be complex and will rely on sophisticated, line-following algorithms or ~ification and extraction algorithms to obtain the desired information from the map or photo.

A variety of terms are used to define data layers in commercial GIS software. These include themes, coverages, layers, levels, objects, and ~es. Data layer and theme are the most common and the least proprietary to any particular GIS software and accordingly, as used throughout the book.

See also: See also: What is the meaning of Class, Feature, Layer, Information, Map?

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