Text Justification

Certain commands allow you to justify text relative to a point or relative to a base line specified by two points.

Point

The following justifications use a single reference point to define the text position. Point justified text may also be plotted at an angle.

-1	left justified at the reference point
0	centred on the reference point
1	right justified on the reference point
2	height and width centred on the reference point

Base line

Text may also be plotted on a base line defined by two points, in which case the X,Y coordinates of the second point must be specified.

3	left justified on base line
4	centred on base line
5	right justified on the base line
6	fully centred on the base line
7	character width adjusted to fit text on base line.
8	character size adjusted to fit text on base line.

Control codes

The insertion of special characters in text can be achieved by embedding control codes in the text string. Two formats are supported; the original MAPPLOT control code sequence consists of a double-percent character %% followed by the code. Alternatively the ASCII code of the special character, preceded by an escape sequence generates the same result. Note that the ASCII code of the special characters may vary slightly from font to font. Ensure that you use the correct ASCII code. The following codes are defined:

%%d	Draw a degrees symbol (°)
%%p	Draw a plus/minus symbol (±)
%%c	Draw a circle diameter symbol (Æ)
%%%%	Draw two percent signs together
%%nnn	Draw ASCII character nnn
\nnn	Draw octal ASCII character nnn
\xnn	Draw hexadecimal ASCII character nn

Example