Autodesk AUTOSKETCH 8, User Manual

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Glossary
proportional scaling To constrain scaling so as not to distort an entity while
resizing. That is, to keep both the horizontal and vertical scaling factors equal.
Publish to Web The web tool that simplifies the process of creating web-compatible
DWF files and formatting them for display in HTML pages.
Quadrant snap A snap that allows you to specify a point at 0, 90, 180, or 270 degrees
on an arc or circle by clicking near the point. You can set a finer interval using the
Quadrant Snap drop-down list box on the Drawing page of the Drawing Options
dialog box.
qualifier See selection qualifier.
question mark The character (?) you type to match a single character in a filename
or database field.
radian Units of measurement for angles equal to approximately 57°17'44.6''. There
are 2
π
radians in a complete circle. In AutoSketch, a radian measurement is expressed
with a number followed by “rad,” as in the expression “1.5708 rad.” You can convert
radians to degrees by multiplying radians by 180/
π
gives degrees.
radius dimension A dimension used to note the radius of an arc, circle, or bulged
poly-segment.
raster image A bitmap file.
Realtime pan A feature that allows you to pan interactively with the mouse, instead
of panning by increments.
Realtime zoom A feature that allows you to zoom interactively with the mouse,
instead of zooming by increments.
rectangle In AutoSketch, a four-sided irregular polygon whose opposite sides are
equal and whose angles are all 90 degrees.
rectangular array To repeat a selection set in a two-dimensional array based on a list
of x- and y-values. The list may be regular (even spacing) or irregular.
rectangular grid A reference grid with snap intervals and lines that parallel the x and
y axes. This grid is the standard reference tool for most two-dimensional drawings. See
also Circular Grid, Isometric Grid, and Reference Grid.
redo To reverse the effects of an undo command. See also undo.
redraw To update the image in the drawing area. A redraw is sometimes necessary
when an operation leaves some part of the image incomplete. To force a redraw, click
Redraw on the View menu or toolbar or the shortcut key CTRL+R.
reference grid A visual drawing aid consisting of a snap grid and a pattern of lines
and dots which represent the grid visually. See also Circular Grid, Isometric Grid, and
Rectangular Grid.
region selection The process of selecting entities by including them in a rectangular
or irregular area of the drawing. See also marquee.
regular polygon A polygon in which all sides are equal and all angles are equal.
relative coordinates Coordinates that specify location in relation to the last point.
For example, the relative xy coordinates 18,-26 describe a point 18 units right of and
26 units below the previous point. See also absolute coordinates.