On Tue, 2011-05-17 at 15:36 +0200, Stefan Salewski wrote: > On Tue, 2011-05-17 at 12:02 +0100, Peter Clifton wrote: > > > Core features in the PCB editor can be pretty complex. We have a lot of > > code for dealing with polygon geometry, > May we consider use of clipping libraries like > > http://angusj.com/delphi/clipper.php Why - is ours broken? (Answer - a little, but I don't know theirs would be any better) Is theirs faster? I could believe theirs "might" be faster (it uses a scan-line based algorithm which ours does not). Is it optimised (like ours is) for speed performing iterative computation on existing polygons without touching unaffected geometry? This might make a real difference PCB's speed. -- Peter Clifton Electrical Engineering Division, Engineering Department, University of Cambridge, 9, JJ Thomson Avenue, Cambridge CB3 0FA Tel: +44 (0)7729 980173 - (No signal in the lab!) Tel: +44 (0)1223 748328 - (Shared lab phone, ask for me)
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