Dear Gert, Am 19.06.2015 um 07:14 schrieb Gert-Ludwig Ingold <[email protected]>: >> I would suggest to add a flag to the bar style to skip drawing of >> zero height bars. This should be rather straight forward. However, >> there is one thing needing some attention, namely the changebar style. >> I think, skipping the drawing of zero height bars would not mean to >> skip it from the changing style evaluation. At least this would be my >> first guess to not take it into account here. But we could do so as >> well ... :-/ > > I absolutely agree that it should not be excluded from the changing style > evaluation because styles are usually associated with the data column and > do not just indicate the order of the bars.
Yes, I finally agree without and doubts anymore. We should keep the changing style evaluation as it is. > In any case, I would be in > favor of such a flag. I was thinking about this as well, and I'm not yet sure. At least, I can think of a very different solution. I'm not sure whether this is a useful direction, but we could probably construct a decorator, who removes "degenerated" normsubpaths. Degenerated means those normsubpaths, which do not result in any filled area when filling is done. By applying this decorator, also the strokes would be removed. This would be a solution completely outside of the graph. I'm not yet sure how to implement it best, but I think it could be done. Doing it within the bar style is just an alternative approach, coming from a very different mindset, and would be very simple to implement. But my feeling still is, that it is a strange "hack" to get rid of the strokes. It really is something else what is going on here. I've not yet done any decision on how to proceed with this issue. I just wanted to let you know, that I'm thinking in very different directions as well. Best, André -- by _ _ _ Dr. André Wobst, Amselweg 22, 85716 Unterschleißheim / \ \ / ) [email protected], http://www.wobsta.de/ / _ \ \/\/ / PyX - High quality PostScript and PDF figures (_/ \_)_/\_/ with Python & TeX: visit http://pyx.sourceforge.net/
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