Filter
Top Products
MC (Merge
Control)
The MC command controls the color of pixels where two or
more page marking primitives intersect on the page. This
command supports all 256 Microsoft Windows ternary
(ROP3) raster operation codes. A common application of the
MC command is the rendering of complex polygon fill pat-
terns. Raster Operations specify how source, destination,
and patterns are combined to produce final images.
MC mode, [opcode][;]
Parameter Format Functional
Range
Parameter
Default
mode clamped
integer
0 or 1 0 (off)
opcode clamped
integer
0 to 255 252 (mode=0),
168 (mode=1)
Mode — defines the merge control mode as follows:
0 (off, default) Pixels in a primitive replace
corresponding destination pixels. If no
opcode is specified, 252 is used.
1 (on) Pixels in a primitive merge with
corresponding destination pixels,
creating a new color based on the colors
of the source data and the contents of
the destination (frame buffer). If no
opcode is specified, 168 is used.
Note This command is the HP-GL/2 version of the PCL Logical
Operation command.
This command sets a ROP value which affects not only
HP-GL/2 operation but also the PCL ROP value.
The MC command is defaulted by an IN command.
7-6 Color Vector Graphics (HP-GL/2)7-6 Color Vector Graphics (HP-GL/2)