Re: deafault arrow style (head length) in plots with vectors

[Ethan M. <merritt@u.washington.edu>]

On Wednesday 13 May 2009 15:06:18 JoanPau wrote:
> 
> Hi
> 
> I would like to know what are the default values for the arrow style
> parameters in plots with vectors, and where are this values set in the
> source code.

They are set by this routine in gadgets.c:

void
default_arrow_style(struct arrow_style_type *arrow)
{
    static const struct lp_style_type tmp_lp_style = DEFAULT_LP_STYLE_TYPE;

    arrow->layer = 0;
    arrow->lp_properties = tmp_lp_style;
    arrow->head = 1;
    arrow->head_length = 0.0;
    arrow->head_lengthunit = first_axes;
    arrow->head_angle = 15.0;
    arrow->head_backangle = 90.0;
    arrow->head_filled = 0;
}

-- 
Ethan A Merritt