slew x y [z]
slew "x y [z]"
sv x y [z]
vslew x y [z]SLEW(nged)
NAME
slew - shift the view center by a vector in view space
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SYNOPSIS
DESCRIPTION
The slew command (also available as sv and vslew) shifts the view center by a displacement vector specified in view coordinates. The view is panned by the given amounts in X, Y, and optionally Z. This is distinct from setting an absolute view position — the displacement is relative to the current view center.
The vector may be specified as two or three separate floating-point arguments, or as a single quoted space-separated string. In all cases, if the Z component is omitted or not provided in the string, it defaults to 0.0.
View coordinates are in normalized view space: (0, 0) is the view center, and the extents are typically ±1 in each axis depending on the current view scale. Slewing by (1, 0) pans the view by one view-space unit to the right.
Input forms
-
slew x yorslew x y z: Three (or two) separate floating-point arguments. -
slew "x y"orslew "x y z": A single quoted space-separated string of two or three values.
EXAMPLES
Example 1. Pan the view right and up
mged> slew 0.5 0.25
Shifts the view center 0.5 units to the right and 0.25 units upward in view space. Z defaults to 0.
Example 2. Slew using the sv alias
mged> sv -0.1 0 0.05
Pans the view left by 0.1 and shifts it slightly toward the viewer (+Z in view space) by 0.05. Uses the short sv alias.
Example 3. Slew using a quoted triplet
mged> slew "0.2 -0.3 0"
Shifts the view center using a single quoted string input — convenient for scripting.
SEE ALSO
view(nged)
AUTHOR
BRL-CAD Team
BUG REPORTS
Reports of bugs or problems should be submitted via electronic mail to devs@brlcad.org