PERIMETER_TYPE(3G)

NAME

perimeter_type − select a line type for subsequent polygon perimeters.

SYNOPSIS

C SYNTAX

void perimeter_type(fildes,style);
int fildes,style;

FORTRAN77 SYNTAX

subroutine perimeter_type(fildes,style)
integer*4 fildes,style

PASCAL SYNTAX

procedure perimeter_type(fildes,style:integer);

HP-UX COMPATIBILITY

Level: HP-UX/STANDARD

Origin: ANSI Computer Graphics Interface

DESCRIPTION

INPUT PARAMETERS

fildes
is an integer file descriptor returned by gopen when an I/O path to a graphic device is opened.
style
is one of the following:

   SOLID
   DASH
   DOT
   DASH_DOT
   DASH_DOT_DOT
   LONG_DASH
   CENTER_DASH
   CENTER_DASH_DASH

DISCUSSION

Predefined perimeter types are described below:

Index   Name               Approximate Pattern

   0    SOLID              Solid
   1    DASH               .25 .50 .25
   2    DOT                4-8 dots per repeat length
   3    DASH_DOT           .4 .1 dot .1 .35
   4    DASH_DOT_DOT       .35 .1 dot .1 dot .1 .35
   5    LONG_DASH          .375 .25 .375
   6    CENTER_DASH        .35 .1 .1 .1 .35
   7    CENTER_DASH_DASH   .25 .1 .1 .1 .1 .1 .25

Negative style values are device dependent, i.e. on a terminal, -1 is a point plot.

Continuity between separate, but graphically connected, polyline or line segments in not guaranteed.

The pattern is restarted each time this procedure is executed.

All devices do not support this procedure.

DEFAULTS

Solid Lines.

Museum

Related Articles