Alignment and location

The alignment or justification of the text is controlled by the keyword TEXTALIGN. The origin of the text is always the lower left corner of the string. The alignment determines where this origin is placed with respect to a reference point. See the figure and the table below. The default value of TEXTALIGN is 1 (the origin is the same as the reference point).

(x0,y0)     origin point of string (lower left corner)
(xref,yref)     reference point
H     maximum height of string
L     length of string
a     angle of string in degrees
1 x0 = xref y0 = yref
2 x0 = xref - L/2 y0 = yref
3 x0 = xref - L y0 = yref
4 x0 = xref y0 = yref - H/2
5 x0 = xref - L/2 y0 = yref - H/2
6 x0 = xref - L y0 = yref - H/2
7 x0 = xref y0 = yref - H
8 x0 = xref - L/2 y0 = yref - H
9 x0 = xref - L y0 = yref - H
10 x0 = xref y0 = yref         a = 90°
11 x0 = xref y0 = yref         a = 270°
12 x0 = xref - L/2 y0 = yref         a = 90°

If TEXTINTERACTIVE ≠ 0, then the graphics cursor is used to interactively determine the reference point to place a text string when drawn by the TEXT command.

If TEXTINTERACTIVE = 0, then XTEXTLOCATION and YTEXTLOCATION will be used to determine the reference point for the character string.

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