Wow mining addon gatherer?

hey guys i saw some dude video on youtube and he was using an addon catographer and a few other ones. Basically what he did was linked all the node locations together in a certain place and he could follow a line which linked all the nodes together. I have no idea how to do it. Can anyone tell me step by step instructions or link me to a site that will. I wanna be able to mine adamantite fel iron and khoium. I only have bc atm.