#489 complete ged file graph

[A Name]

It would be very neat if I could have pgv display a
graph of all the people in the entire ged file and
their interconnections rather than only a group of
descendants and/or ancestors emanating from one individual.

[Laie Techie]

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One problem of graphing a large group of people is that it's
extremely memory and time intensive. Can you imagine
graphing the inter-relationships of 3400+ individuals? Can
you imagine how big such a chart would need to be?

[A Name]

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What you say is very true, but you could for example use
graphviz's dot package as a backend. It is pretty optimized
for doing this very thing. The size problem could be
attenuated by having a zoom in/out function.

In fact, a really smart piece of software would only have to
render whatever is currently on the screen, so the time
could be amortized if it takes the user a while to scroll
around.

Again, this is just a pie in the sky idea that I agree would
be hard given the constraints of an online program.

[Ralf Kleineisel]

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Gramps does have this feature. It uses graphviz and it is a
really nice feature. It can produce SVG or postscript output
which can easily be zoomed in on. Generating the graph for
about 300 people takes 1-2 seconds.

[Ralf Kleineisel]

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This feature is very useful for finding people or groups of
people which have missing connections to the rest of the
family tree or connections that should not be there.