I'm not a graphic-designer. A friend of mine is - a retired one. I asked him to design a logo for my company. He does not know how to use a PC/Mac for design tasks so he did it on paper. It looks great.
He gave me a drawing which describes the lines to be drawn (widths, endpoints), the distances and the angles of each. The geometrical characteristics.
What tool should I use to create a vectorized version of this? Ideally an open-source-tool.
I'm a programmer, I naturally thought about turtle-graphics (with gnuplot as an example). But I'm sure that there are more powerful tools which will let me colorize the logo once the geometrical description is imported.