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10/10/03
CHAPTER 4 HP-GL/2 - 19
PA - Plot absolute
PA [ X, Y [,...]] [;]
X ; X coordinate of the cursor movement destination
Y ; Y coordinate of the cursor movement destination
•
Coordinates are absolute values in user or current units.
•
Whether used with or without parameters the command establishes absolute plotting as the plotting mode.
•
The command moves the cursor to the specified coordinates, drawing straight lines, only when the pen is
down.
•
In symbol mode PA draws the specified symbol at each point in the parameter list.
•
In polygon mode the specified coordinate pairs are placed in the polygon buffer.
• If an odd number of coordinates are specified, the final (unpaired) coordinate is ignored.
10 ' -- Plot Absolute --
20 WIDTH "LPT1:",255
30 LPRINT CHR$(27);"E";
40 LPRINT CHR$(27);"%0B";
50 LPRINT "IN;SP1;";
60 LPRINT "PA2000,6000;PD0,6000,2000,7500,2000,6000;PU2500,6000;";
70 LPRINT "PAPD4500,6000,2500,7500,2500,6000;PU10365,500;";
80 LPRINT CHR$(27);"%0A";
90 LPRINT CHR$(27);"E";
100 END
<Sample 24>
PR - Relative coordinate pen move
PR [X, Y [,...]] [;]
X ; X coordinate of the cursor movement destination
Y ; Y coordinate of the cursor movement destination
•
Coordinates used are relative values in current units.
•
Whether used with or without parameters the command establishes relative plotting as the plotting mode.
•
The command moves the cursor to the specified coordinates, drawing straight lines, only when the pen is
down.
•
You can specify any number of coordinated pairs and plotting is performed in the order the coordinates are
specified.
•
In symbol mode PR draws the specified symbol at each point in the parameter list.
•
In polygon mode the specified coordinate pairs are placed in the polygon buffer.
• If an odd number of coordinates are specified, the final (unpaired) coordinate is ignored.
10 ' - Plot Relative -
20 WIDTH "LPT1:", 255
20 LPRINT CHR$(27); "E";
30 LPRINT CHR$(27); "%0B";
40 LPRINT "IN;SP1;"
50 LPRINT "PA5000,4500,;PDPR-2000,0,2000,2000,0,-2000;PU500,0;"
60 LPRINT "PD2000,0,-2000,2000,0,-2000;PU;"
70 LPRINT CHR$(27); "%0A";
80 LPRINT CHR$(27); "E";
90 END
<Sample 25>