ok i looked at using the COM interface, and... it's incomplete, lacking the set of required functions to do things such as "add track".
sooOoo... i think i'll take a different approach: i'll write a parser for the ASCII-exported version of the PCB file, track down the relevant sections and replace them with auto-generated tracks.
actually what this approach would allow is, to potentially add in proper curves. if i'm going to use tables mathematically to automate the track generation, i might as well go the whole hog, richard, and do the equations from that 1956 paper, properly. even if it means adding thousands of segments.
what do you think?
l.