Added width and background options for svg and png

[szufan]

Hello -

I've noticed when writing trees to file with gotree draw svg and gotree draw png tip labels get cut off. I think, for SVG at least, this is because only +60 is added to the width (and height) parameters. This can be fixed by editing the svg attribute width="100%" or replacing width with overflow="visible". Could one of these be made default, or added as an option? This is also an issue with PNGs, but I do not have a workaround for that.

Another issue with PNGs is that the transparent background appears gray in Dark Mode. Could an option be added to create PNGs with a white background?

I tested the above with the following newick (sorry, .nwk not an accepted upload):

(long-label-20:0.0001775,(long-label-21:0,((long-label-12:0,long-label-13:0.000076,long-label-08:0,long-label-08-1:0,(long-label-09:0,really-long-label-11:0.000034):0.000069,long-label-07:0,long-label-19:0):0.000034,long-label-10:0,long-label-10-1:0,long-label-10-2:0,long-label-06:0,long-label-05:0,long-label-17:0,long-label-02:0,long-label-04:0,long-label-03:0,long-label-01:0):0.000102):0.0001775);

Using: gotree draw svg < in.nwk

gotree draw png < in.nwk

Thanks, Sara

[fredericlemoine]

Hello,

That is something I wanted to work on for a long time. The commits solve part of the drawing issues (especially with "normal" layout), but there are still work to do with circular and radial layouts.

Frédéric

[szufan]

Thank you @fredericlemoine ! Could you release this for conda users?

[fredericlemoine]

Sure, I will do it soon. In the mean time, you can also open your svg files with inkscape, and modify the dimension of the image.