Good morning Thank you Martin
Using Therion 6.4.0 + debae9b I have moved to luatex and some initial tests on a single 74 km project suggest it works well. I played with various permutations of debug station-names and maps on/off. Compile times are maybe 3% longer that with pdftex, but that is within the variation observed if I make no changes at all. So speed variation is of no consequence. The exported pdf file sizes are no different and the time taken to open the pdfs (36 s for the largest at 135 MB) does not change between tex and luatex. The issue I had with png images on 67248d35 using luatex has been resolved. Recently I mentioned that ‘maps off’ significantly increases compile time. In working through the above tests I came across a note I made in one of my thconfig files in June 2019. It mentions that ‘maps off’ significantly increases compile time and pdf file size. However now I can confirm that debae9b compile times do not vary appreciably with variations in maps on/off or between tex/luatex. Maps on/off does affect pdf file sizes, but at the moment I have examples where it is trivial and others where it might be that maps off results in a significant increase, but the examples I have are not definitive. Overall, luatex is working well with debae9b. I’ll stick with it. Bruce
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