The polygon Group ; EA - Edge rectangle absolute ; EA X, Y[;] - Page 338

2001/10/02 

CHAPTER 9 HP-GL - 13 

10 '*** CIEX1 *** 

20 LPRINT "IN;SP1;IP2650,1325,7650,6325;" 

30 LPRINT "SC-100,100,-100,100;" 

40 LPRINT "PA-60,50;CI40,45;" 

50 LPRINT "PA60,50;CI40,30;" 

60 LPRINT "PA-60,-50;CI40,15;" 

70 LPRINT "PA60,-50;CI40,5;" 

80 END 

<Sample 65> 

10 '*** CIEX2 *** 

20 LPRINT "IN;SP1;IP2650,1325,8650,7325;" 

30 LPRINT "SC0,170,0,170;" 

40 LPRINT "PA100,100;LT;CI10,5;LT0;CI-20,5;LT1;CI30,5;" 

50 LPRINT "LT2;CI-40,5;LT3;CI50,5;LT4;CI-

60,5;LT5;CI70,5;LT6;CI80,5;" 

60 END 

<Sample 66> 

10 '*** CIEX3 *** 

20 LPRINT "IN;SP1;IP2650,1325,7650,6325;" 

30 LPRINT "SC-1000,1000,-1000,1000;" 

40 LPRINT "PA-800,800;" 

50 GOSUB 130 

60 LPRINT "PA200,800;" 

70 GOSUB 130 

80 LPRINT "PA-800,-200;" 

90 GOSUB 130 

100 LPRINT"PA200,-200;" 

110 GOSUB 130 

120 END 

130 LPRINT "CI70;PR600,0;CI70;PR-300,-300;CI250;" 

140 LPRINT "PR-300,-300;CI70;PR600,0;CI70;" 

150 RETURN 

<Sample 67> 

3.4. 

The polygon Group 

Instruction 

Function 

EA 

Edge Absolute Rectangle 

ER 

Edge Relative Rectangle 

EW 

Edge Wedge 

RA 

Fill Absolute Rectangle 

RR 

Fill Relative Rectangle 

WG 

Fill Wedge 

EA - Edge rectangle absolute 

EA X, Y[;] 

X ; X coordinate of opposite angle for the rectangle 

Y ; Y coordinate of opposite angle for the rectangle 

• 

X and Y coordinates are absolute coordinates in user units or graphics units. 

• 

Plots the rectangle formed by the current position and the opposite angle specified by X and Y.  

• 

After plotting the cursor returns to its point of origin. 

• 

Plotting is performed whether the pen is up or down. 

• 

When scaling has been performed, the rectangle is plotted in user units. 

• 

Also, when scaling has been performed, the values for X and Y are real numbers. 

• 

When there is no scaling, the rectangle is plotted in graphics units.