Autodesk 15606-011408-9005 Tutorial - Page 322
query, raster, resolution, save set, scale, scale threshold, schema, SDF 2, sheet, sheet set
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Page 322 highlights
query A set of criteria for specifying the selection of objects or records. For example, a layer (page 312)-based query can display only the objects on the layers that contain state and district boundaries. raster Images containing individual dots (called pixels or cells) with color values, arranged in a rectangular, evenly spaced array. Aerial photographs and satellite images are examples of raster images used in mapping. Compare with vector (page 316). resolution In a raster (page 314) image, the density of pixels-per-inch (PPI) or dots-per-inch (DPI). save set Objects that were created or modified in the current drawing and are marked to be saved back to source drawing (page 315)s. scale The ratio of the distance on a paper map to the distance on the ground. A scale of 1:100,000 (also represented as 1/100000), means that a distance of one unit on the map corresponds to 100,000 units on the ground. On a digital map, scale represents the scale of the map from which the digital map was derived. scale threshold Levels at which a map display changes. You can define different style (page 315)s at different scale thresholds. For example, turn on the display of road names only when the drawing scale factor is below 1:5000. schema The metadata that provides a logical description of multiple feature class (page 311)es and the relationships between them. SDF Spatial Data File. The current version of the SDF format that is the native format for the Autodesk MapGuide technology (Autodesk MapGuide Enterprise 2007 and MapGuide Open Source). Each SDF file can contain multiple feature class (page 311)es or types of data stored in tables with attributes and geometry. SDF 2 A previous version of the SDF file format that was the native file format for Autodesk MapGuide (the last release was Autodesk MapGuide 6.5). Each SDF 2 file generally contained one feature (page 311) or type of data, for example points, lines, polygons, or text. sheet An individual named object in a sheet set (page 314) that can be published. A sheet references a layout. sheet set A named collection of sheets and sheet subset (page 314)s for publishing. sheet subset A named collection of sheets within a sheet set (page 314). An individual sheet can be a member of only a single subset. sheet template A drawing file that defines a title block and a layout for use in sheets. A sheet template can be specified for sheet set (page 314)s and sheet subset (page 314)s. 314 | Chapter 9 Glossary
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