'\" @(#)68	1.3  src/cmdtext/usr/lib/dwb/samples/pic.forms, cmdtext, cmdtext720 4/15/91 13:26:55 
'\"
'\" COMPONENT_NAME: (CMDTEXT) Text Formatting Services
'\"
'\" FUNCTIONS:
'\"
'\" ORIGINS: 54 
'\"
.P
The forms that \fIpic\fR provides are
.sp 2
.in +1i
.PS
circle "circle"; move; box "box"; move; arrow "arrow" above
.PE
.sp 2
.PS
ellipse "ellipse"; move; line "line" above; move; arc "arc"
.PE
.in -1i
.P
\fIpic\fR's language is intuitive, so making your own forms is not hard.  For instance,
you can talk to \fIpic\fR as you would to someone drawing shapes with a pencil:
.PS
.in +0.3i
ellipse; line right; arc; arc; arc; line down 1i; circle; arrow right; box dashed
line right; line dotted right; arc; arrow dashed; box "There."
.PE
.in -0.3i
Since you can store these instructions in special commands, you are able to compile a
personal library of shapes, naming them whatever you like:
.DS I
input_output
molecular_struct
solar_system
.DE
And these you can even tailor later to suit your particular needs in any document.
For instance, the following example might be used to demonstrate the concept of processing:
.in +0.75i
.sp 1
.PS
box "input"; arrow; ellipse "processing"; arrow; box "output"
.PE
.in -0.75i