`plpoin`: Plot a glyph at the specified points
Prev | Chapter 18. The Common API for PLplot | Next

#### `plpoin`: Plot a glyph at the specified points

`plpoin (` | n,
| x,
| y,
| code`)`;

Plot a glyph at the specified points. (This function is largely superseded by `plstring` which gives access to many[!]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.

`n` (`PLINT`, input)

  Number of points in the ``x`` and ``y`` arrays.

`x` (`const PLFLT *`, input)

  Pointer to an array with X coordinates of points.

`y` (`const PLFLT *`, input)

  Pointer to an array with Y coordinates of points.

`code` (`PLINT`, 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.

Redacted form: `plpoin(x, y, code)`

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

Prev | Up | Next
`plpath`: Draw a line between two points, accounting for coordinate transforms | Home | `plpoin3`: Plot a glyph at the specified 3D points