I am a complete beginner with blast. I used the NCBI online service for aligning two sequences, and got a nice dotplot representation. Now I am running blast on my pc, and I would like to obtain such dot plot from the blast alignment output. I searched for a way to do that, but I did not found anything that made the work, so I do not know wether what I am trying to do makes sense or not. Can you give me a hint?