FPAT
109
FPAT — generate Fill PATtern
Format
FPAT #, #, #, #, #, #, #, #;
Parameters
#:
number from 0 to 255
Function
The FPAT command establishes a new shading pattern, for use by the BLK, ARC, and
FILL commands, as described in a 8
× 8 matrix of dots.
Each number corresponds to one row of 8 dots. The value of the number is calculated
according to the black dots in its row, counting 1 for a black dot in the rightmost column,
2 for a black dot in the next column left, 4 for a black dot in the next column, and so on.
To calculate the third number in the example above, add up the values of the columns
that have black dots in the first row: 16+8 = 24.
To calculate the forth number in the example above, add up the values of the columns
that have black dots in the second row: 32+16+8+4 = 60, and so on.
For printing system models that support 600/1200 dpi resolution printing, the default
resolution generated by the FPAT command is 300 dpi; however, 600/1200 dpi can be
selected using the FRPO B8 command. See Section 6.2. of the Technical Reference
manual (FRPO B8). The printing system recognizes a dot in the pattern as having the
size of 1/300 inch in the 300 dpi resolution, and 1/600 inch in the 600 dpi resolution, and
1/1200 inch in the 1200 dpi resolution.
For an all-white row, specify 0. The FPAT command for creating all white rows is
specified below:
FPAT 0, 0, 24, 60, 60, 24, 0, 0;
For an all-black row, specify 255 (1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 = 255). The default
value is FPAT 255, 255, 255, 255, 255, 255, 255, 255; giving a solid
black pattern which is equivalent to the PAT 1; command.
Column Values
FPAT Parameters
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General
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