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GSX-86: Graphics for the
APe
SET POL YMARKER TYPE
This operation sets the marker type for subsequent polymarker operations. The
total number of markers available is device-dependent; however 5 marker types are
required as shown below.
1 - .
2-+
3-*
4 - 0
5 - X
If the requested marker type is out of range, type 3 (*) should be used.
Input
Output
contrl(l)
contrl(2)
intin(l)
contrl(3)
intout( 1)
SET POLYMARKER SCALE
Opcode
=
18
o
Requested polymarker type
o
Selected polymarker type
This operation requests a polymarker height for subsequent polymarker operations.
The driver returns the actual height selected, which is a best fit to the requested
height.
Input
Output
contrl(l)
contrl(2)
ptsin(1)
ptsin(2)
contrl(3)
ptsout(1)
ptsout(2)
Opcode
=
19
Number of input vertices
=
o
Requested polymarker height in device
units
Number of output vertices
=
o
Selected polymarker height in device units
9-33
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