Autodesk 15606-011408-9330 User Guide - Page 180

DWG layer A single layer within an Autodesk drawing (DWG) file. DWG map layer A single Autodesk MapGuide map layer that is sourced from an Autodesk DWG or an Autodesk DWG Project File. feature See map feature. FeatureProperties table A table of Autodesk Map object properties (color, area, and object handle) that are on an Autodesk MapGuide DWG layer. field A specific class, or column, of information in a database. For example, in a database of demographic information for countries, one field might be "Country Name," and another might be "Population." geocode When used as a noun, refers to the unique key of a map feature (see key). As a verb, to geocode means to assign real-world coordinates to spatial features so that they can be displayed consistently and correctly on a map. See also georeferencing file. geographic coordinate system A coordinate system that uses angular coordinates, such as latitude and longitude. This is the default Autodesk MapGuide Author coordinate system. Geographic Information System (GIS) An organized collection of computer hardware, software, and geographic data designed to efficiently capture, store, update, manipulate, analyze, and display all forms of geographically referenced information. georeferencing file (TFW) A file that accompanies a raster image file and tells Autodesk MapGuide Server how to scale and translate the raster image onto the current map. GIS See Geographic Information System. handle A unique numeric identifier for an Autodesk Map object. hatch A regular pattern used to fill an area with a series of cross-angled lines. IntelliMouse A pointing device designed by Microsoft that has a wheel control (a rotating wheel that is also a third button). The IntelliMouse provides extended navigational functions in the areas of zooming and panning. It allows you to perform these operations directly from the mouse instead of interacting with navigation controls on the screen. Internet A global collection of linked, independent networks that use the TCP/IP protocol to function as a single large network. The Internet can be accessed by the public. Internet Server Application Programming Interface (ISAPI) An interface that allows server applications to work with Microsoft Internet Information Server (Microsoft IIS). If you are using Microsoft IIS as your Web server, you can use either the ISAPI or CGI version of the Autodesk MapGuide Server MapAgent. intranet A private network that uses Internet technology but cannot be accessed by the public. If an intranet extends access to authorized users outside of the organization, it is called an extranet. ISAPI See Internet Server Application Programming Interface. island An excluded area within the perimeter of a closed polygon. An island can also be an included area outside such a perimeter. A lake in a parcel and an island in a lake are both examples of islands. 180 | Glossary