gEDA-user: practical pcb layout-fu (was: router theory)

2006-12-09 Thread John Griessen
Stefan Salewski wrote: What do you think about a combination of Lee's and ants algorithm? Lee's algorithm finds a set of (overlapping) paths between two points, which includes the shortest and best path. And ants algorithm seems to be good to optimize these path, which is to select the best

Re: gEDA-user: practical pcb layout-fu (was: router theory)

2006-12-09 Thread Stefan Salewski
John Griessen wrote: [...] switch easily between rule sets [...] I fully agree. No autorouter can guess which cost factors are more important than others, and human aid will often be necessary. Some years ago I did a pcb with the autorouter of Eagle, and after finetuning all parameters I got

Re: gEDA-user: practical pcb layout-fu

2006-12-09 Thread Harry Eaton
John Griessen wrote: So. with those ideas in mind, a GUI or hotkey set of commands to switch between different weightings of costs for different signal paths would be good. Different rules for RF and short med speed digital paths, and audio and heat dissipating power zones. switch easily