Re: [graphviz-interest] Dendrograms/Cladograms

Ron Savage <[email protected]> Wed, 23 Dec 2015 09:25:00 +1100
Newsgroups gmane.comp.video.graphviz
Message-ID <[email protected]>
Hi Hermann

Well done! I like the first image (without splines=ortho).

Since I'm a Perl programmer, I'm going to write some Perl code to do 
this. Either I'll use the invisible node option in a front-end to dot, 
or - perhaps more likely - I'll just use a Perl imaging module. I'd like 
to use dot of course :-).

The thing is, if I create the tree using a Tree module first, then 
attributes attached to each node can specify how far apart sisters are 
to be drawn, and how far apart mother-daughters are to be drawn.

Then other attributes can specify the text, the color, line thickness, etc.

Of course many users would expect the code to auto-generate the 
distance-apart logic, so that's the part I've been thinking about most.

I have not started coding, and won't for days. I'm still working on my 
flower (garden) database and the web pages I build from that [1]. All 
this is auto-generated from the db by Perl code.

And, no, there's no use of dot here, although I've been thinking, and 
asking on this list, how to combine the db with dot. No luck there, so 
I've stuck with HTML [2].

Eventually (i.e. over the holidays) the numbers in the latter page will 
become links to the corresponding individual pages, so I'll be able to 
chop the index below the diagram.

[1] http://savage.net.au/Flowers.html

[2] http://savage.net.au/Flowers/garden.layout.html


-- 
Ron Savage - savage.net.au
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