Autotek autocad raster design 2010 Benutzerhandbuch

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crop A selected area of a raster image. Pixel data outside the crop is deleted.
The image frame size is adjusted automatically. A crop permanently alters an
image.
data organization The method of organizing the image data when the image
is saved. The data organization can be stripped, tiled, or monolithic.
datum A reference point, line, or surface.
decrement To decrease by one.
DEM Digital elevation model. A format for recording land elevations in a
digital file. A regular grid of survey points is created over the surface, and the
elevation of each point is recorded as a floating-point number.
density The number of dots per linear unit at which an image is scanned or
created. The more dots per unit, the higher the density and clarity of detail.
Also called resolution or pixel density. See also DPI.
density units The linear units on which the image density is based. Example:
Inches are the density units of an image that was scanned at 300 dots per
inch.
density value The number of dots per unit that make up the image density.
Example: An image scanned at 300 dots per inch has a density value of 300.
deskew To rotate a raster image, usually for the purpose of aligning it
orthogonally with the AutoCAD coordinate system.
destination point The location to which you move an image. To move an
image, you must pick a source point and a destination point.
detach To completely remove an image from a drawing. To reverse a detach
operation, you must insert the image from its source. Operations similar to
detach but less permanent are erase, unload, and hide.
displace To move an image from a source point to a destination point.
display The visual output device and its technology, such as a CRT-based
display, a flat-panel display, or the graphics portion of your monitor.
display order The order in which images are displayed in AutoCAD. This
sequence determines which images are above or below other images, and
affects image visibility.
dither The process of using a pattern of solid dots to simulate more colors
than are actually available.
donut A circle with a specified linewidth.
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