GNOME Bugzilla – Bug 624340
Cannot create weekly/bi-weekly axis ticks
Last modified: 2010-07-30 22:47:33 UTC
Created attachment 165875 [details] 2 graphs, X=normal works as intended, X=Date exhibits glitch. If you try to use a date range as the X axis for a plot, and choose the Major gridline interval to be 7 - to divide off weeks, then the display fails. It seems to somehow drop to Monthly divisions for any interval > 1. Minor divisions are also not represented correctly. See attached file for illustration. (Major Minor works fine for 'normal' formatted X axis values)
Looks like if interval is > 1, it is at least one month.
Created attachment 165882 [details] [review] Proposed patch Morten, any comment?
This is clearly a case of "I didn't think about that!" I'll have to think about this -- please keep this open for a while. There are almost certainly issues near 30 days for this. For 30 we want monthly, for 28 we probably want that. Also, say we have one-week intervals. Where should be axis ticks be? Sunday and Monday are likely candidates, Thursday not so much. Hopefully, if we set the minimum that overrides any automatics.
Morten, I think that we should use the locale information for the first day in a week: week followed by a list of three values: The number of days in a week (by default 7), a date of beginning of the week (by default cor‐ responds to Sunday), and the minimal length of the first week in year (by default 4). Regarding the start of the week, 19971130 shall be used for Sunday and 19971201 shall be used for Monday. Thus, countries using 19971130 should have local Sunday name as the first day in the day list, while countries using 19971201 should have Monday translation as the first item in the day list. first_weekday (since glibc 2.2) Number of the first day from the day list to be shown in calen‐ dar applications. The default value of 1 corresponds to either Sunday or Monday depending on the value of the second week list item. If users want a locale independent presentation they could specify the minimum.
This problem has been fixed in our software repository. The fix will go into the next software release. Thank you for your bug report. I totally ignored the start-of-week issue. Major ticks start when the graph starts.
(In reply to comment #5) > I totally ignored the start-of-week issue. Major ticks start when the graph > starts. Personally - I believe the start of week should be ignored - as 'scientific data' rarely observes the 'business' week. e.g. - more likely the major ticks will not be 7 days - but the period of an astromonic event, or the life cycle of some organism, or.. or... . . .. Thankyou for incredible professional service! I was amazed by the attention to a reasonably trivial behaviour . Richard.