Scanlab RTC 5 PC Interface Board Installation And Operation Manual page 356

Normal mark_ellipse_rel
List Command
Function moves the laser focus at marking speed along an elliptical arc around the specified
midpoint (relative coordinate values) within a two-dimensional image field.
Call
mark_ellipse_rel( dX, dY, Alpha )
Parameters
dX,dY
Alpha
Comments • The coordinates for the ellipse midpoint are to be supplied as relative coordinates with
respect to the current position. Otherwise, the command is identical to
mark_ellipse_abs
• 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
coordinate values by 16 (the permissible range of values is correspondingly reduced to
[–524288 ... 524287]).
Version info • Available beginning with version DLL 518, OUT 517, RBF 515
• For older RTC
the command is neither executed nor replaced by
RTC5_TYPE_REJECTED).
References mark_ellipse_abs,
Normal mark_rel
List Command
Function moves the laser focus at marking speed along a 2D vector from the current position to the
specified position (relative coordinate values) within a two-dimensional image field.
Call
mark_rel( dX, dY )
Parameters
dX, dY
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
mark_abs
® ®
RTC 4 RTC 5 unchanged functionality (except for the extended range of values).
®
In RTC 4 compatibility mode, the RTC
(the permissible range of values is correspondingly reduced).
References mark_abs, mark_rel_3d,
®
RTC 5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
relative coordinates of the ellipse midpoint in bits as signed 32-bit values;
allowed range: [–8388608 ... 8388607] (out-of-range values will be edge-
clipped).
Angle (in ° as a 64-bit IEEE floating point value) between elliptical half-axis a
(defined via set_ellipse) and the X axis (see mark_ellipse_abs)
(see the comments there).
®
®
5 boards with DSP version numbers < 2
set_ellipse
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.
(see the comments there).
®
timed_mark_rel
5 multiplies the specified ellipse midpoint
(get_rtc_version
list_nop (get_last_error
5 multiplies the specified coordinate values by 16
bits #16-23),
return code:
356