My beef is this: So I want to trace those tracks out on Inkscape, so I can turn the blocky MS Paint line drawings you see above into a silky-smooth .svg illustration that’s more or less equal to the ones seen on Wikipedia.

See, I want to (1) find out precisely how long is every segment is when I draw and whether or not 1px=1-meter, and (2) just how the heck am I supposed to draw over the lines with my hamfisted-ass mousework. It’s what put off my go at upgrading my track drawings. I could use some help.