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node3_mn.html
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1995-03-15
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<H4><A ID="SECTION00001010000000000000">
Default positions:</A>
</H4>
<P>
These set up default values for the parameters which
specify the position of each component
as well as the flags to indicate what type
of 2-cell is to be typeset.
<P>
<BR>
<tex2html_image_mark>#defs1128#
<BR>
<P>
|@| means to calculate from the value in |6|, see |@cell@@@|.
<P>
(
@@<#914#>6=<#137#>3.5<#137#>5=<#138#>@<#138#>7=<#139#>@<#139#>8=<#140#>@<#140#>3=<#141#>f<#141#><tex2html_comment_mark>77
@cell@ <#914#>
@@<#915#>6=<#142#>7<#142#>5=<#143#>@<#143#>7=<#144#>@<#144#>8=<#145#>@<#145#>3=<#146#>o<#146#><tex2html_comment_mark>78
@cell@ <#915#>
@@<#916#>6=<#147#>-7<#147#>5=<#148#>@<#148#>7=<#149#>@<#149#>8=<#150#>@<#150#>3=<#151#>o<#151#><tex2html_comment_mark>79
@cell@ <#916#>
@@<#917#>6=<#152#>3.5<#152#>5=<#153#>@<#153#>7=<#154#>@<#154#>8=<#155#>@<#155#>3=<#156#>t<#156#><tex2html_comment_mark>80
@cell@ <#917#>
)
<P>
This collects together all the relevant data, and resolves the
default positions.
<P>
(
@@cell@@@<#1095#><tex2html_comment_mark>81
66=<#157#><#157#>
@7@6@
3t@=@
3o@@
@;SPMlt;@ @ii-@ @ii@
@=@ii @@
@@
<#159#>@ <#159#>
@8@6@
3t@@
3o@@
@;SPMlt;@ @ii-@ @ii@
@=@ii @@
@@
<#161#>@ <#161#>
@5
@6@
3o@ by-4
@@
<#163#>@ <#163#>
@
3t
@=<#182#><#182#><tex2html_comment_mark>114
@<#184#>@ <#184#><tex2html_comment_mark>117
@<#186#>@ <#186#><tex2html_comment_mark>120
@<#187#>@ <#187#><tex2html_comment_mark>121
@ <#1095#><tex2html_comment_mark>122
)
<P>
See below for the possible forms of ||.
<P>
3
Labels are placed labels on the upper and lower arrows,
more correctly `anti-clockwise' and `clockwise', using |^| and |_|.
These are entirely optional with the following token, or grouping, giving
the contents of the label. When used with
|.̇compositemap| the |^| and |_| specify
labels for the first and second arrows, respectively.
<P>
(
@@#1<#922#>@<#189#>+!C<#189#><#190#>#1<#190#><#922#>
)
<P>
Normally the label is balanced text, set
in T<SMALL>E</SMALL>X's math mode, with || setting the style.
The default definition is given by ...
<P>
||
<P>
This can be altered using | (see below).
Although it is possible to specify multiple labels,
only the last usage of each of |^| and |_| is actually set,
previous specifications being ignored.
<P>
Similarly a label for the central Arrow must be given,
after the other labels, by enclosing it within braces |<#193#>...<#193#>|.
An empty group |<#194#><#194#>| gives an empty label; this is necessary
to avoid misinterpretation of subsequent tokens.
<P>
2