On Mon, Jul 19, 2021 at 12:08 PM Bruce Mutton <br...@tomo.co.nz> wrote:
> >Is it possible to scale the length of the bar based on the number of > altitudes so that it fits the standard variable module length used for > other colour legends? > > >>this has been implemented in 9a30b34 > <https://github.com/therion/therion/commit/9a30b34a9c9ed54e8c651c2edbb8ef7573e83b6f>. > > > This is working I think – yet to test with all projects. > > > I tried using the ‘smooth-shading off’ option in the hope that the > altitude legend format would revert to the old style, but there is no > difference; it comes out the same as if ‘smooth-shading quick’ is set. > > >>This is intended, because even if you don't use smooth shading for > scraps, most of the scraps colored by altitude get colors which are not > found on the old-style discrete color legend. So a smooth color legend > should be useful. Do you see a use case for having a discrete legend in > this case? > > > > I’m not sure. I am undecided as to whether I would prefer independent > control of the colour-legend style (user specifies smoothed if Therion can > do it, or specifies discrete regardless of whether Therion can do smoothed > or not). The current implementation seems to decide automatically, > depending on the type of lookup (for example banded gives discrete, > otherwise it is smoothed). Probably I would prefer independent control. > Especially as the discrete style is used for all only most altitude map-fg > / lookups and for all other map-fg / lookups. > Agree, independent control offers the best control. The color-legend keyword will be expanded to support on/off/smooth/discrete (on = auto). > My tentative comments: > > > 1. The new colourbar misses out the top colour (red), and generally > biases the colours on the colourbar too far up relative to the labelled > altitudes (a bug). > > It indeed looks like a bug. Could you send me the data to reproduce it? > > 1. The old version (5.5.7) works better with banded colours as 6.0.0 > did not shade it as I would like. It will probably be OK with smooth > shading off – didn’t get around to checking that yet. > > Maybe the effect you don't like is that only a part of any scrap within the bounds of the band is coloured (not the whole scrap) when smooth shading is used. For highlighting particular passages probably a special area symbol filled with a colour (or different colours based on the ATTR__scrap value) is better suited than altitude bands. Cheers Martin
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