Brother International HL-1070 Technical Reference - Page 170
RT - Relative arc three point, PE - Polyline encoded, value
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2001/10/02 RT - Relative arc three point RT X , Y , X , Y [,qd] [;] 1 1 2 2 X1 ; x-coordinate of intermediate point Y2 ; y-coordinate of intermediate point X2 ; x-coordinate of end point y2 ; y-coordinate of end point qd ; the chord angle used to draw the arc • The specified coordinates of the two points are relative to the current pen position. • The command draws an arc from the current position, through the specified intermediate position and finishing at the specified end position. • After completion of the command the current cursor position is at the end of the arc. • An arc can be drawn clockwise or anti-clockwise. • If the current scaling mode is not isotropic, the arc may be elliptical rather than circular. • The chord angle must be in the range 0.5° to 180°. • The default chord angle is 5°. 10 '--Relative Arc Three Point-20 WIDTH "LPT1:",255 30 LPRINT CHR$(27); "E"; 40 LPRINT CHR$(27); "&0B"; 50 LPRINT "IN;SP1;"; 60 LPRINT "PA1000,100;PR;PD1500,0;" 70 LPRINT "PU-1850,1050;PD350,0;" 80 LPRINT "PU-350,-700;PD350;0;" 90 LPRINT "PU0,-350;PD0,1500,1500,0;" 100 LPRINT "RT800,-750,0,-1500;" 110 LPRINT "PU700,850;PD;" 120 LPRINT "RT100,-100,0,-200;" 130 LPRINT "PU100,100;PD200,0;" 140 LPRINT CHR&(27); "%0A"; 150 LPRINT CHR$(27); "E"; 160 END PE - Polyline encoded PE [ [flag] [value] | X Y ... [flag] [value] | X Y ] ]; ii ii flag ; a command or mode that applies to the data that follows value; parameter data for the preceding flag X ; X-coordinate of a cursor movement destination Y ; Y-coordinate of a cursor movement destination • This command allows you to combine a sequence of PA, PR, PU, PD and SP commands into a coded format. This reduces file size and transmission time. • Do not use commas within the PE command. Parameters either have their own terminators or do not require them. • The PE command must be terminated with a semi-colon. • The command draws lines using the current line type and current units. • The command draws lines to all coordinate points specified unless you precede the coordinate pair with a pen up flag. • On completion of the command, the pen is down unless the final move was made with the pen up. • All coordinate points are interpreted as relative unless preceded by the absolute flag (=). • On completion of the command, the previous plotting mode is restored. • Flags are not encoded. They are sent as ASCII characters. The MSB of the code is ignored, thus 60 and 188 can both represent
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