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.TH "SET EDGE COLOUR INDEX" 3P "29 February 1991"
.SH NAME
SET EDGE COLOUR INDEX \- create structure element to set the current edge colour index attribute
.IX "Aspect Source Flags" "SET EDGE COLOUR INDEX"
.IX "Attributes, Edge Attributes" "SET EDGE COLOUR INDEX"
.IX "Colour" "SET EDGE COLOUR INDEX"
.IX "Edge Attributes" "SET EDGE COLOUR INDEX"
.SH SYNOPSIS
.SS C Syntax
.ft B
.ta 1.25i 3i
.nf
void
pset_edge_colr_ind ( index )
Pint	index;	\fIedge colour index\fP
.fi
.ft R
.SS Required PHIGS Operating States
(PHOP, *, STOP, *)
.SH DESCRIPTION
.SS Purpose
\s-2SET EDGE COLOUR INDEX\s+2 creates a structure element
containing a value for the current edge colour index attribute.  
When the current edge colour index Aspect Source Flag (\s-2ASF\s+2)
is set to \s-2INDIVIDUAL\s+2,
this attribute indexes the colour representation
that applies to the output primitives:
.RS
.ta 0.2i +0.2i +0.2i +0.2i +0.2i +0.2i +0.2i +0.2i
.LP
\(bu
.SM "FILL AREA SET"
.LP
\(bu
.SM "FILL AREA SET 3"
.LP
\(bu
.SM "FILL AREA SET 3 WITH DATA"
.LP
\(bu
.SM "GENERALIZED DRAWING PRIMITIVE \fI(Fill Area Set Primitives)\fP"
.LP
\(bu
.SM "GENERALIZED DRAWING PRIMITIVE 3 \fI(Fill Area Set Primitives)\fP"
.LP
\(bu
.SM "NON-UNIFORM B-SPLINE SURFACE"
.LP
\(bu
.SM "SET OF FILL AREA SET 3 WITH DATA"
.LP
\(bu
.SM "QUADRILATERAL MESH 3 WITH DATA"
.LP
\(bu
.SM "TRIANGLE STRIP 3 WITH DATA"
.ta
.RE
.LP
.SS C Input Parameter
.IP \fIindex\fP
An integer colour index, which selects a colour value from
the workstation's colour table.
.SS Execution
If the current edit mode is \s-2INSERT\s+2, then 
a \s-2SET EDGE COLOUR INDEX\s+2 element is inserted into 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 EDGE COLOUR INDEX\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.
.LP
When the \s-2SET EDGE COLOUR INDEX\s+2 element is traversed,
the current edge colour index
entry in the traversal state list is set to the colour index.
.LP
When the current edge colour index \s-2ASF\s+2 is set to
\s-2INDIVIDUAL\s+2, the fill area output primitives that follow in
the structure network are filled with the colour representation
selected by the current edge colour index from the workstation's
colour table.  
.LP
If the colour index specified is not available on the workstation,
then colour index 1 is used.
.LP
When the current edge colour index \s-2ASF\s+2 is set to \s-2BUNDLED\s+2,
the edge colour index is taken from the
workstation's representation indicated by the current edge index.  
In this case, the colour index set with \s-2SET EDGE COLOUR INDEX\s+2
has no effect.
.SH ERRORS
.IP 005
Ignoring function, function requires state (\s-2PHOP, *, STOP, *\s+2)
.IP 113
Ignoring function, the colour index value is less than zero
.SH SEE ALSO
.nf
.IP
.ta 0.5i
.SM "SET COLOUR REPRESENTATION (3P)"
.SM "SET EDGE FLAG (3P)"
.SM "SET INDIVIDUAL ASF (3P)"
.SM "SET EDGE REPRESENTATION (3P)"
.fi