Strava's 'slide' plugin and GPS heatmap is pretty neat. I've been using it to find roads or walking paths in forest areas with good success.
If you aren't sure what I'm talking about, there's a really neat talk about detecting paths based on averaged GPS traces, which no doubt could generally apply to a lot of drawing or tracing that humans have to undertake.
If you aren't sure what I'm talking about, there's a really neat talk about detecting paths based on averaged GPS traces, which no doubt could generally apply to a lot of drawing or tracing that humans have to undertake.
