Scanlab RTC 5 PC Interface Board Installation And Operation Manual page 472

Ctrl Command set_rot_center
Function sets the rotation center of a Processing-on-the-fly rotation correction (see
set_fly_rot_pos).
Call
set_rot_center( X, Y )
Parameter
X, Y
Comments • For Processing-on-the-fly correction, see
• The position of the rotation center should be defined via set_rot_center or
set_rot_center_list
set_fly_rot
• The rotation center can also lie outside the image field (the allowed area is roughly
equivalent to 30x the image field).
• Usage of a second scan head is only practical if it is set up for exactly the same rotational
center.
® ®
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 set_fly_rot,
Delayed Short set_rot_center_list
List Command
Function same as
Call
set_rot_center_list( X, Y )
Parameter
X, Y
® ®
RTC 4 RTC 5 new command
References set_rot_center
®
RTC 5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
Position of the rotation center referenced to the zero point (0|0) of the image
field as signed 32-bit values;
24
allowed range: [–2 ... (2
before the Processing-on-the-fly correction is activated via
or set_fly_rot_pos.
set_fly_rot_pos
set_rot_center (see above), but a list command
See set_rot_center.
24
–1)]
page 181.
®
5 multiplies the specified coordinate values by 16
set_fly_rot and
472