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/* This file contains the point method, which is a standard part of
libplot. It plots an object: a point with coordinates x,y. */
#include "sys-defines.h"
#include "extern.h"
int
#ifdef _HAVE_PROTOS
_API_fpoint (R___(Plotter *_plotter) double x, double y)
#else
_API_fpoint (R___(_plotter) x, y)
S___(Plotter *_plotter;)
double x, y;
#endif
{
if (!_plotter->data->open)
{
_plotter->error (R___(_plotter)
"fpoint: invalid operation");
return -1;
}
_API_endpath (S___(_plotter)); /* flush path if any */
/* update our notion of position */
_plotter->drawstate->pos.x = x;
_plotter->drawstate->pos.y = y;
if (_plotter->drawstate->pen_type == 0)
/* no pen to draw with, so do nothing */
return 0;
/* call internal function: draw marker at current location, in a
Plotter-specific way */
_plotter->paint_point (S___(_plotter));
return 0;
}
/* The internal point-drawing function, which point() is a wrapper around.
It draws a point at the current location. There is no standard
definition of `point', so any Plotter is free to implement this as it
sees fit. */
/* This implementation is for a generic Plotter. It does nothing. */
void
#ifdef _HAVE_PROTOS
_g_paint_point (S___(Plotter *_plotter))
#else
_g_paint_point (S___(_plotter))
S___(Plotter *_plotter;)
#endif
{
return;
}
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