On 20/11/2020 10:02, Alex wrote: > Hi everyone, > > I started doing some C++11 modernization and Standard Library insertion > in the rectangular placement segment of the PCBNew, and in the process I > went down the rabbit hole of documentation for the algorithm. Out of > curiosity I adjusted the Greater algorithm from only sorting on the > longest side, to first sorting by longest side, and then sorting by > shortest side. > > I found that this small adjustment seemed to increase packing density > enough that when presented with 500 rectangles of randomly generated > size of (15x15) - (85x85) fit into surfaces of (255 x 255), the total > number of required surfaces went from ~28 to ~26. The catch is that the > initial sorting of the algorithm takes a little longer. > > Always the skeptic, I would like to know if there is currently a > methodology or recommendation for incorporating a benchmark test for > both space and time performance. At minimum, I can use Google Benchmark, > but I'd like to know if I should place the tests in the same folder, or > if there is another place for this kind of stuff. >
Alex, Do you mean the rect packing algorithm used by the autoplacer? Tom _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : kicad-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
