Hi JP,
the class diagram viewer is inspired by UML, where class diagrams are
typically laid out with the root classes on the top. See examples at
http://en.wikipedia.org/wiki/Class_diagram
I have noted a feature request for some future version, to have a
button to switch orientation of the layout to horizontal - thanks for
the suggestion.
Holger
On Dec 3, 2008, at 2:20 PM, jp wrote:
>
> I searched on "graph layout" and "graph direction" and found no hits
> on this, so if it's been discussed before please forgive me.
>
> I would like graphs laid out left-to-right -- flipped across the
> vertical axis relative to the current layout. Having used many
> ontology graphers, starting with the Grapher package on the Xerox
> 1108/9, and including the NIKL and ISI graphers, and having built a
> few myself, all of the ones I've seen, used, or built have the root at
> the left and subclasses extending to the right.
>
> This may seem minor, but it's got a very Through-the-Looking-Glass
> feeling to me, and is so counter-intuitive that I'm not sure I want to
> try to adjust my thinking unless it's absolutely necessary.
>
> Is there any way to reverse the direction of the layout? It should be
> a matter of taking the max X coordinate for the current logical layout
> and subtracting the X coordinate of each layout element from that --
> at least that's the way the ISI grapher and the Interlisp-D grapher
> handled it (although since the default was left-to-right, this was to
> get a right-to-left layout).
> >
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