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/* This file contains the contrel() method, which is a GNU extension to
libplot. contrel() is simply a version of cont() that uses relative
coordinates. It continues a line. */
#include "sys-defines.h"
#include "plot.h"
#include "extern.h"
int
#ifdef _HAVE_PROTOS
_m_contrel (int x, int y)
#else
_m_contrel (x, y)
int x, y;
#endif
{
if (!_plotter->open)
{
_plotter->error ("contrel: invalid operation");
return -1;
}
if (_plotter->outstream)
{
if (_plotter->portable_output)
fprintf (_plotter->outstream, "%c %d %d\n",
CONTREL, x, y);
else
{
putc (CONTREL, _plotter->outstream);
_emit_integer (x);
_emit_integer (y);
}
}
return 0;
}
int
#ifdef _HAVE_PROTOS
_m_fcontrel (double x, double y)
#else
_m_fcontrel (x, y)
double x, y;
#endif
{
if (!_plotter->open)
{
_plotter->error ("fcontrel: invalid operation");
return -1;
}
if (_plotter->outstream)
{
if (_plotter->portable_output)
fprintf (_plotter->outstream, "%c %g %g\n",
CONTREL, x, y);
else
{
putc (FCONTREL, _plotter->outstream);
_emit_float (x);
_emit_float (y);
}
}
return 0;
}
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