void
chart_datum(struct chart *ch, int dataset UNUSED, double x, double y)
{
-
if ( ! ch )
return ;
+ {
+ const double x_pos =
+ (x - ch->x_min) * ch->abscissa_scale + ch->data_left ;
+ const double y_pos =
+ (y - ch->y_min) * ch->ordinate_scale + ch->data_bottom ;
- const double x_pos =
- (x - ch->x_min) * ch->abscissa_scale + ch->data_left ;
-
- const double y_pos =
- (y - ch->y_min) * ch->ordinate_scale + ch->data_bottom ;
-
- pl_savestate_r(ch->lp);
+ pl_savestate_r(ch->lp);
- pl_fmarker_r(ch->lp, x_pos, y_pos, 6, 15);
-
- pl_restorestate_r(ch->lp);
+ pl_fmarker_r(ch->lp, x_pos, y_pos, 6, 15);
+ pl_restorestate_r(ch->lp);
+ }
}
/* Draw a line with slope SLOPE and intercept INTERCEPT.