bionic (3) plpoin.3plplot.gz

NAME

       plpoin - Plot a glyph at the specified points

SYNOPSIS

       plpoin(n, x, y, code)

DESCRIPTION

       Plot  a  glyph  at the specified points.  (This function is largely superseded by plstring(3plplot) which
       gives access to many[!] more glyphs.) code=-1  means try to just draw a point.  Right  now  it's  just  a
       move  and  a  draw  at  the  same  place.   Not ideal, since a sufficiently intelligent output device may
       optimize it away, or there may be faster ways of doing it.  This is OK for now, though, and offers  a  4X
       speedup  over  drawing  a  Hershey  font  "point" (which is actually diamond shaped and therefore takes 4
       strokes to draw).  If 0 < code < 32, then a useful (but small subset) of Hershey symbols is plotted.   If
       32 <= code <= 127 the corresponding printable ASCII character is plotted.

       Redacted form: plpoin(x, y, code)

       This function is used in examples 1, 6, 14, and 29.

ARGUMENTS

       n (PLINT(3plplot), input)
              Number of points in the x and y vectors.

       x (PLFLT_VECTOR(3plplot), input)
              A vector containing the x coordinates of points.

       y (PLFLT_VECTOR(3plplot), input)
              A vector containing the y coordinates of points.

       code (PLINT(3plplot), input)
              Hershey  symbol  code (in "ascii-indexed" form with -1 <= code <= 127) corresponding to a glyph to
              be plotted at each of the n points.

AUTHORS

       Many developers (who are  credited  at  http://plplot.sourceforge.net/credits.php)  have  contributed  to
       PLplot over its long history.

SEE ALSO

       PLplot documentation at http://plplot.sourceforge.net/documentation.php.

                                                 November, 2017                                  PLPOIN(3plplot)