Network

Network analysis is used for identifying the most efficient routes or paths for allocation of services. This involves finding the shortest or least-cost manner in which to visit a location or a set of locations in a network.

Network planning and analysis. (Software). Byers Engineering SpatialAge Solutions offers SpatialWORX, a planning and analysis tool for viewing and creating network inventory models.

Network Analysis Powerful tracing utilities that show the direction of flow upstream and downstream from a given node, or show the direction of flow based on slope "What-if" scenarios ...

Network Extension—Provides network-based spatial analysis capabilities including routing, travel directions, closet facility, and service area.

These networks support national mapping programs and provide a consistent and accurate framework or reference for other government and private agencies to use to create their own horizontal and vertical control networks or to carry out special ...

A triangulated irregular network (TIN) is a digital data structure used in a geographic information system (GIS) for the representation of a surface.

network attribute See Also : attribute, cost, descriptor, hierarchy, restriction [ESRI software] A type of attribute associated with a network element in a network dataset.

Network Analysis Network models are based on interconnecting logical components, of which the most important are: "Nodes" define start, end, and intersections "Chains" are line features joining nodes "Links" join together points making up a chain.

Network Location: This product spans four CDs that cover regions of the U.S. for a map of the regions, click here.

network wide area communications Today, GIS software runs on a wide range of hardware types, from centralized computer servers to desktop computers used in stand-alone or networked configurations.

Network Design and Layout GPS-S Techniques Section V - Precise-Positioning Survey Conduct ...

Networks in Motion NAVBuilder - NAVBuilder(TM) enables developers to enhance their applications with location-based features including navigation, local directories, maps, directions, and more.

Networks If all the factories near a wetland were accidentally to release chemicals into the river at the same time, how long would it take for a damaging amount of pollutant to enter the wetland reserve?

Networks When nutrients from farmland are running off into streams, it is important to know in which direction the streams flow and which streams empty into other streams. This is done by using a linear network.

Network: 1. Two or more interconnected computer systems for implementation of specific functions. 2. A set of interconnected lines (arcs, chains, strings) defining the boundaries of polygons. Node: ...

Network Analysis is a range of techniques employed by engineers and planners to study the properties of networks including connectivity, capacity, and rates of flow.

NETWORK 1) A geometric or logical arrangement of nodes and interconnecting lines. 2) A database structure in which the links and relations between various data are explicitly defined. 3) A group of linked computers which are able to share software, ...

Network - (1) A configuration of two or more computers connected so that they can share functions (i.e. applications and processes) and resources (i.e. data). (2) A system of linear features, e.g. roads, in a geographic database.

Network: 3com EtherLink XL Adapter The technologies related to the Web-based GIS applications include Object-Oriented Language, GIS package and language, HTML, and CGI.

network link Network links are interconnected linear entities which represent the conduits for transportation (e.g., vehicles, fluids, electricity) and communication networks, for example, highways and electrical transmission lines.

*** Network: Any time you connect 2 or more computers together so that they can share resources, you have a computer network.

Portable Network Graphics. Pronounced 'ping' The PNG format is intended to provide a portable, legally unencumbered, well-compressed, well-specified standard for lossless bitmapped image files.

Reference network A reference network is a series of monuments or reference points with accurately measured mutual vectors/distances used as a reference basis for cadastral and other types of survey.

Center for Networked Information Discovery and Retrieval (USA) CNES Centre national d'etudes spatiales (France) ...

Canadian Base Network (CBN) The very high accuracy, multi-dimensional network of stations being established within Canada through the cooperative efforts of the Federal and provincial governments.

Geomatics Skills Network, Natural Resources Canada Federal Job Site, Public Service Commission of Canada Geomatics in Canada Job Board Federal Map Producers ...

a 'triangulated irregular network' (TIN) of points. Digital Exchange Format (DXF) ASCII text files defined by Autodesk, Inc. Originally used in CAD, now showing up in a third party GIS software.

153 a network that connects each point in a set of points to its nearest neighbors; topological 'dual' of the Voronoi network. DEM p.

catalog services One thing that the OpenGIS Abstract Specification defines is a standard set of services to support on-line catalogs of geodata and geoprocessing capabilities accessible to users in networked environments.

See network analysis. contiguity analysis. See neighborhood analysis. contour. An imaginary line on the ground, all points of which are at the same elevation, usually expressed as a length or elevation above some datum such as mean sea level.

A drainage pattern in which stream channels develop within a large-scale network of intersecting joints. This drainage pattern is characterized by right-angle bends in the channels of streams and streams that intersect at right angles.

Three main centers heavily involved in transportation modeling and geographic networks are the Energy Division (ED), the Chemical Technology Division (CTD), and the Computational Physics and Engineering Division (CPED).

A standardized global network of weather stations started developing at the turn of this century.

A worldwide network of educational institutions that offer distance learning courses in GIS. Pennsylvania State University ...

network (TIN) A representation of a surface derived from irregularly spaced sample points and breakline features. The TIN data set includes topological relationships between points and their proximal triangles.

The research demonstrated that the old Celtic road network connecting the hillforts of the area tended to follow within the line-of-sight of the hillforts, rather than take more direct paths (as originally proposed in Madry and Crumley 1990).

geologic map See: map, geologic graticule Network of parallels and meridians on a map or chart.

Network functions are processes to optimize vehicle routing and to divide areas into service districts for optimizing limited resources (Aronoff 1989).

By 1972, the NAD 27 had developed into a network of almost 250,000 geodetic survey stations. These additional stations were forced to fit the original NAD 27 network which caused distortions in the positional data.

Air photos capture residential and industrial areas, road and rail networks, and geographical features including mountains, canyons, flatlands, rivers, lakes, forests, and cropland.

(Unplanned transportation networks are one example of such structures.) Cartography helps us to describe systematically, human activity in terrestrial space. This is even more feasible with digital cartography.

Relative Map Accuracy: The accuracy of map elements in relation to a local survey network that is not tied to the earth's geoid.

Geodetic Control - A network of carefully measured horizontal and vertical points. An accurate geodetic network provides the foundation for photogrammetric mapping.

Triangulated Irregular Network (TIN) A series of triangles constructed using elevation data points taken from coverages. These triangles are used for surface representation and display.

It was used for presenting fiber cable routes and intercontinental network traffic in Thomas B. Allen's The Future is Calling, National Geographic 200(6), December 2001.

High Precision Geodesy Network (National Geodedic Survey) srp_cahpn.zip (12 kb) Preview Metadata ...

Graticule The depiction of the lines of latitude and longitude on a map. The network of parallels and meridians plotted on the map in map projection. The lines will not be orthogonal or even, in general, straight.

Ordinal Data- Data are group in classes and the order between the classes is important (e.g., order in a stream network). Overlay- A combination of two or more map layers, within a GIS, to create one or more new map layers or new information.

You can match the restaurant addresses in a file to a street network and show them on a map.

There are two main ways to render a 3D model- using vector and raster data. With vector data, you create a TIN (Triangular Irregular Network), whereas the raster contains the elevation information in its attributes. To create a TIN: ...

These can be used to generate contour lines and Triangulated Irregular Networks (TINs) which look like wire frame representations of the terrain. They are also used in the process of orthogonalizing air photos.

Hess, B., Sproull, L., Kiesler, S., and Walsh, J. 1993. Returns to Science: Computer Networks in Oceanography. Communications of the Association for Computing Machinery 36:90-101.

North American Datum (NAD) - The official reference ellipsoid used for the primary geodetic network in North America (see datum). O ...

A geographic feature that can be represented by a line or set of lines. For example, rivers, roads within a pizza delivery area, and electric and telecommunication networks are all linear features. Link ...

I am trying to find dted 1 data for the manchester area of the uk. to use it for planning a private wireless network set up between friends.

Because data in a GIS are referenced to geography, they have real-world locations and could overlay one another. GIS links the location to each layer (such as people to addresses, buildings to parcels, or streets within a network) to give a better ...

stream order A classification of the relative hierarchy of stream segments in a drainage network.

NAD - North American Datum: The official reference ellipsoid used for the primary geodetic network in North America. Node: The beginning and ending locations of a line on a digital map.

See also: Information, Model, Image, GIS, Feature