Hi Bruce, thanks for pointing out this bug. I will check the order of numbers, I have probably made some mistake when dealing with automatic color scale generation.
I have rewritten the scale code completely, but I had no time until now to write the docs. But if you want to try, something like that should now work in the layout: lookup altitude -title "Altitude legend" 700 [100 0 0] "700 m a.s.l." 680 660 640 620 600 [0 0 100] "below 600 m" endlookup It should generate red -> blue scale with desired values. Also explo-date, topo-date should now work with addition to maps, scraps. E.g. export map -layout-color map-fp topo-date and for example: lookup topo-date 2010.12.31  "2010 and before" 2011.12.31  2011 2012.12.31  2012 -  "2013 and later" endlookup You may specify multiple lookup tables for same criterion using ":" separator in label lookup altitude:scale1 600 800 endlookup and lookup altitude:scale2 800 750 700 endlookup and use then "color map-fg altitude:scale1" or "color map-fg altitude:scale2" You may use also: lookup maps map1@some_survey [color] map2 [color] map3 [color] endlookup Same should work with scraps. With maps, also more simple way should work - you may specify color of a particular map within selection. select map1 -color [100 0 0] Also intervals should work: lookup altitude [1500 1600]  "cave floor 1" [1800 1900]  "cave floor 2" endlookup If you are willing to try, I would appreciate any feedback. Probably there are a lot of bugs because a lot of use-cases. I was not able to test them all. S. On 2 November 2017 at 10:05, Bruce Mutton via Therion <email@example.com> wrote: > I’ve just noticed that the latest development snapshot 5.4.1+4369eea seems > to have messed with the altitude legend. > > You can see from the screenshot below, which shows part of identical > project compilations, one with 9d96803 and then one with 4369eea. > > Pretty sure I have not made any other changes that could have caused this > at my end, and I see that some of the intervening commits on github relate > to colour changes. > > > > Neutral (perhaps) changes are that there are more colour bands and the > colours are brighter, in the legend at least, though not in the map. > > A negative change is that the altitude range is now upside down. > > > > Bruce > > > > > _______________________________________________ > Therion mailing list > Therion@speleo.sk > https://mailman.speleo.sk/listinfo/therion > >
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