drawing larger trees

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Posted on Thu Dec 13 15:58:05 2007 by eleysanne

drawing larger trees

Hi Everyone,

I tried drawing a large tree the other day (~500 sequences) and the svg image came out to be very scrambled an unreadable. Increasing the width and height of the image mainly seemed to stretch it out.

Is there another way I could make my image bigger and get readable node descriptions?

Or is there a limit to the size of a tree?

Thanks in advance,
eleysanne

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Posted on Thu Dec 13 18:05:34 2007 by eleysanne in response to 6681

Re: drawing larger trees

Just for fun, I changed the image size to 8000x8000, and it did produce a pretty tree.

So my next question would be about the font size of the node descriptions. Is it a fixed font size, or is it changeable?
If I could reduce the font size to 8 or 9, the tree should still be readable, but I could reduce the image size (because 8000x8000 is not feasible for a web page)

Any comments are appreciated!

Thanks,
eleysanne

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Posted on Fri Jan 25 22:58:38 2008 by rvosa in response to 6684

Re: drawing larger trees

Dear Eleysanne,

my apologies for the late reply. Any additional style (font-family, font-size, font-weight, color, etc.) can be applied as per the documentation for Bio::Phylo::Treedrawer::Svg. Basically, what you do is iterate in this case over all nodes, and for each node add

$node->set_generic( 'svg' => { 'font-size' => '9px' } )

In other words, add a key called 'svg' and a value consisting of a hash reference where the keys are standard CSS properties and the values are standard CSS values.

Hope this helps,

Rutger

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