Break a line in Inkscape

I have a solid line in Inkscape and I want to insert a line break, say, in the middle. The reason is that I had a relatively complex figure generated as SVG, where I need to colour some lines in half.

So, here’s how to do it: Read the rest of this entry »

Cleaning up with sed

I needed to clean up some plain text files from data and characters I did not want.

To be more precise, I have a phylogenetic tree, obtained from the TimeTree web-site. Species presented there are mainly birds, several reptiles and a fish. The tree has branches length information and node labels, which I wanted to remove.
Read the rest of this entry »