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.TH "SET ANNOTATION TEXT CHARACTER UP VECTOR" 3P "29 February 1991"
.SH NAME
SET ANNOTATION TEXT CHARACTER UP VECTOR \- create structure element to set the \fIcurrent annotation text character up vector\fP attribute
.IX "Text Attributes" "SET ANNOTATION TEXT CHARACTER UP VECTOR"
.IX "Attributes, Text Attributes" "SET ANNOTATION TEXT CHARACTER UP VECTOR"
.SH SYNOPSIS
.SS C Syntax
.ft B
.ta 1.5i 3i
.nf
void
pset_anno_char_up_vec ( up_vect )
Pvec	*up_vect;	\fIcharacter up vector\fP
.fi
.ft R
.SS Required PHIGS Operating States
(PHOP, *, STOP, *)
.SH DESCRIPTION
.SS Purpose
\s-2SET ANNOTATION TEXT CHARACTER UP VECTOR\s+2 creates a structure element
containing a value for the current annotation text character up vector 
attribute that determines the orientation of individual characters.  
This attribute applies to the output primitives:
.LP
.RS
\(bu
.SM "ANNOTATION TEXT RELATIVE"
.LP
\(bu
.SM "ANNOTATION TEXT RELATIVE 3"
.RE
.LP
If the current edit mode is \s-2INSERT\s+2, then 
a \s-2SET ANNOTATION TEXT CHARACTER UP VECTOR\s+2 element is inserted 
in the currently open structure after the element pointed to by the 
current element pointer.  If the edit mode is \s-2REPLACE\s+2, then 
the new \s-2SET ANNOTATION TEXT CHARACTER UP VECTOR\s+2 element
replaces the element pointed to by the element pointer.  In either case, the
element pointer is updated to point to the new element.
.SS C Input Parameter
.IP \fIup_vect\fP
A pointer to the annotation text character up vector containing
TLC values, defined as follows:
.sp .2
.nf
.ta .5i +\w'PPfloat  'u +\w'delta_x;    'u
typedef struct {
.sp .2
        Pfloat	delta_x;	\fI x coordinate \fP
        Pfloat	delta_y;	\fI y coordinate \fP
.sp .2
} Pvec;
.fi
.SS Execution
When the \s-2SET ANNOTATION TEXT CHARACTER UP VECTOR\s+2 element is traversed,
the current annotation text character up vector 
entry in the traversal state list is set to annotation text 
character up vector.  
Characters in text output primitives that follow in
the structure network are oriented by the annotation text character up vector.  
The \fIannotation text character base vector\fP is defined
as a vector of arbitrary length set at a right angle to the
character up vector in the clockwise direction.  
.LP
The default annotation text character up vector is (0,1);  
the default annotation text character base vector is (1,0).  
If the annotation text character up vector 
is determined to be degenerate (in other words, has length 0), 
then the default is used.  
.SH ERRORS
.IP 005
Ignoring function, function requires state (\s-2PHOP, *, STOP, *\s+2)
.SH SEE ALSO
.nf
.IP
.ta 0.5i
.SM "ANNOTATION TEXT RELATIVE 3 (3P)"
.SM "SET CHARACTER UP VECTOR (3P)"
.fi
