Scanlab RTC 5 PC Interface Board Installation And Operation Manual page 532

Normal timed_arc_rel
List Command
Function moves the laser focus for the specified marking duration from the current position along
an arc with the specified angle and center point (relative coordinate values) within a two-
dimensional image field.
Call
timed_arc_rel( dX, dY, Angle, T )
Parameters
dX, dY
Angle
T
Comments • The coordinates for the arc center are to be supplied as relative coordinates with respect
to the current position. Otherwise, the command is identical to
comments there, exception: T < 5, see above).
• The current coordinates will be clipped to [–524288 ... 524287] (real image field size)
during runtime directly prior to use of the correction table.
® ®
RTC 4 RTC 5 new command
®
In RTC 4 compatibility mode, the RTC
values by 16 (the permissible range of values is correspondingly reduced to
[–524288 ... 524287]).
References timed_arc_abs,
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RTC 5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
relative coordinates of the arc center in bits as signed 32-bit value; allowed
range: [–8388608 ... 8388607] (out-of-range values will be edge-clipped).
arc angle in ° as a 64-bit IEEE floating point value
(positive angle values correspond to clockwise angles);
allowed range: [–3600.0° ... +3600.0°] (±10 full circles);
out-of-range values will be edge-clipped.
• duration of the complete arc marking process in microseconds (as a 64-bit
IEEE floating point value); allowed range: [0 ... 167772160]; the param-
eter will be rounded to an integer-multiple of 10; out-of-range values will
be clipped. If T < 5, then timed_arc_rel behaves like arc_rel.
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arc_rel
timed_arc_abs
5 multiplies the specified arc center coordinate
(see the
532