Scanlab RTC 5 PC Interface Board Installation And Operation Manual page 467

Normal set_pixel_line
List Command
Function activates the pixel output mode and defines various pixel output parameters.
Call
set_pixel_line( Channel, HalfPeriod, dX, dY )
Parameters
Channel
HalfPeriod
dX, dY
Comments • Each image line must start with the command set_pixel_line. This command should be
preceded by a jump or mark command to the start point of the image line.
• The set_pixel_line command is directly followed by the desired number of
set_pixel/set_n_pixel
parameters.
• The first list command after set_pixel_line that is not a
command will turn off the pixel output mode (the set_pixel_line command, too, ends
the pixel output mode before starting it again). In the process, a default pixel will be
inserted.
• If Channel < 1 or Channel > 2, then set_pixel_line will be replaced by a
(get_last_error
activated.
• Note that half the period length must be specified for HalfPeriod.
2 · HalfPeriod is thus the chronological distance between individual pixels (see
page
value corresponds to a pixel frequency of approx. 308 kHz.
• For pixel frequencies above around 100 kHz (i.e. for a HalfPeriod < approx. 320)
digital-to-analog conversion can't always be fully completed. For such pixel frequencies,
the user must carefully verify that sufficient capability is available.
• The pixel output mode is incompatible with the softstart mode (see
• The pixel output mode should not be used in conjunction with automatic laser control
(see page
ANALOG OUT1 or ANALOG OUT2 output ports or pulse lengths (PulseLength) or
output periods (HalfPeriod) of the laser signals LASER1 and LASER2.
• Also see
• You can combine pixel output mode with Processing-on-the-fly (see
with Wobbel (see
®
RTC 5 PC Interface Board
Rev. 1.9 e
10 Commands And Functions
Number of the analog output port (as an unsigned 32-bit value) that
should output the analog voltage levels defined by subsequent
set_pixel/set_n_pixel
allowed range: [1, 2] (1: ANALOG OUT1, 2: ANALOG OUT2)
half pixel output period in bits as an unsigned 32-bit value.
1 bit equals 1/64 µs. Allowed range: [104 ... (2
distance in the X and Y directions between adjacent pixels in bits
(64-bit IEEE floating point values)
commands, which transmit the PulseLength and AnalogOut
return code RTC5_PARAM_ERROR) and the pixel output mode will not be
192). HalfPeriod must not be smaller than 104 (otherwise it will be clipped). This
140) if automatic laser control readjusts the 12-bit output values at the
chapter 8.8 "Scanning Raster Images (Bitmaps)", page
page 167).
commands;
32 –
set_pixel/set_n_pixel
1)]
list_nop
page 135).
192.
page 177), but not
467