Scanlab RTC6 PCIe Board - Arc_Rel

RTC6 boards
Doc. Rev. 1.0.21 en-US
10 RTC6 Commands
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Normal List
Command
arc_rel
Function Moves the laser focus from the current position at mark speed along an arc with the
specified angle and center point (relative coordinate values) within a 2D Image Field.
Call arc_rel( dX, dY, Angle )
Parameters dX Relative x coordinate of the arc center. In bits.
As a signed 32-bit value.
Allowed value range: [–268,435,456…+268,435,455].
Out-of-range values are clipped to the boundary values.
dY Like dX (analogously).
Angle Arc angle. In degrees.
As a 64-bit IEEE floating point value.
A positive sign means “clockwise”.
Allowed value range: [–3,600.0°…+3,600.0°] (±10 full circles).
Out-of-range values are clipped to the boundary values.
Comments • The coordinates for the arc center are to be supplied as relative coordinates with
respect to the current position. Otherwise, arc_rel is identical to arc_abs (see
comments there).
RTC4RTC6 Unchanged functionality. In addition: increased value range.
In RTC4 Compatibility Mode, the RTC6 multiplies the specified values for dX and dY by 16.
The allowed value range decreases accordingly.
RTC5RTC6 Unchanged functionality. In addition: increased value range.
Version info Available as of DLL 600, OUT 600, RBF 600.
References set_mark_speed, set_scanner_delays, arc_abs, timed_arc_rel, mark_rel, arc_rel_3d,
mark_ellipse_rel