gfx_color_t col; /* graph color */
char format[FMT_LEG_LEN+5]; /* format for PRINT AND GPRINT */
char legend[FMT_LEG_LEN+5]; /* legend*/
+ int strftm; /* should the VDEF legend be formated with strftime */
double leg_x,leg_y; /* location of legend */
double yrule; /* value for y rule line and for VDEF */
time_t xrule; /* time for x rule line and for VDEF */