side (PLCHAR_VECTOR(3plplot), input)
An ascii character string specifying the side of the viewport along which the text is to be
written. The string should contain one or more of the following characters: [xyz][ps][v]. Only one
label is drawn at a time, i.e. xyp will only label the X axis, not both the X and Y axes. x: Label
the X axis. y: Label the Y axis. z: Label the Z axis. p: Label the primary axis. For Z this is
the leftmost Z axis. For X it is the axis that starts at y-min. For Y it is the axis that starts
at x-min. s: Label the secondary axis. v: Draw the text perpendicular to the axis.
disp (PLFLT(3plplot), input)
Position of the reference point of string, measured outwards from the specified viewport edge in
units of the current character height. Use negative disp to write within the viewport.
pos (PLFLT(3plplot), input)
Position of the reference point of string along the specified edge, expressed as a fraction of the
length of the edge.
just (PLFLT(3plplot), input)
Specifies the position of the string relative to its reference point. If just=0. , the reference
point is at the left and if just=1. , it is at the right of the string. Other values of just give
intermediate justifications.
text (PLCHAR_VECTOR(3plplot), input)
A UTF-8 character string to be written out.