RTC
®
5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
539
Normal
List Command
timed_mark_rel
Function moves the laser focus for the specified marking duration along a 2D vector from the
current position to the specified position (relative coordinate values) within a two-
dimensional image field.
Call
timed_mark_rel( dX, dY, T )
Parameters
dX, dY
relative coordinates of the mark vector end point in bits as signed 32-bit
values; allowed range: [–8388608 … 8388607] (out-of-range values will be
edge-clipped). The complete value range [–8388608 … 8388607] is only
usable as a virtual image field e.g. for (enabled) Processing-on-the-fly
applications. The current coordinates will be clipped to [–524288 … 524287]
(real image field size) during runtime directly prior to use of the correction
table.
T
duration of the complete mark vector in microseconds (as a 64-bit IEEE
floating point value); allowed range: [0 … 167772160]; the parameter will be
rounded to an integer-multiple of 10; out-of-range values will be clipped.
If
T
< 5, then timed_mark_rel behaves like mark_rel).
Comments • The coordinates for the mark vector’s end point are to be supplied as relative coordi-
nates with respect to the current position. Otherwise, the command is identical to
timed_mark_abs (see the comments there, exception:
T
< 5, see above).
RTC
®
4
RTC
®
5 unchanged functionality (except for the extended range of values, and
T
< 5 does not
execute timed_mark_rel, but instead mark_rel).
In RTC
®
4 compatibility mode, the RTC
®
5 multiplies the specified coordinate values by 16
(the permissible range of values is correspondingly reduced).
References timed_mark_abs, mark_rel, timed_mark_rel_3d
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