Connecting Commands

Connecting Commands

These commands connect two or more nodes. The two basic ones are

\nodeconnect[fromloc]{fromnodename}[toloc]{tonodename}
\nodecurve[fromloc]{fromnodename}[toloc]{tonodename}{depth}

fromnodename and tonodename must be the names of two existing nodes. Imagine the node as a box, fromloc and toloc are the locations on that box to draw the connecting lines.

The present choices are t [top], b [bottom], l [left], r [right], tl [topleft], tr [topright], bl [bottomleft], and br [bottomright]. These could be expanded.

Other connecting commands are

\barnodeconnect[depth]{fromnodename}{tonodename}
\anodeconnect[fromloc]{fromnodename}[toloc]{tonodename}
\anodecurve[fromloc]{fromnodename}[toloc]{tonodename}{depth}

For example,

\node{c}{\strut This} \node{a}{\strut is} a \node{b}{\strut test} 
of barnodeconnect.  
\barnodeconnect{a}{b}
\barnodeconnect[-5pt]{a}{c}
\bigskip\bigskip

\node{c}{\strut This} \node{a}{\strut is} a \node{b}{\strut test}
\node{d}{\strut of} abarnodeconnect.  \node{e}{\strut Note} arrows.
\abarnodeconnect[10pt]{a}{b}
\abarnodeconnect[-10pt]{a}{c}
\abarnodeconnect[-10pt]{b}{d}
\abarnodeconnect[10pt]{e}{d}

A negative depth places the bar below the line; a positive depth (or the default, which is 5pt) places the bar above the line.

A few odd commands

\nodetriangle{fromnodename}{tonodename}

This creates a triangle whose apex is the bottom of fromnodename and whose base is the top of tonodename.

\anodeconnect and \anodecurve are the same as \nodeconnect and \node- curve except that the connecting line has a arrowhead on it pointing to the second node.

Connecting Commands