From: Al S. <a.d...@wo...> - 2004-04-13 16:27:24
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On Tue, 2004-04-13 at 10:12, John Hunter wrote: > >>>>> "Philippe" == Philippe Strauss <phi...@pr...> writes: > > Philippe> Hello, I'm new to matplotlib and this list. > Philippe> Congratulation to the developers of this great package, > Philippe> I've been looking for a long while for a good quality > Philippe> plotting package. > > Philippe> I would like to plot time in hours on the x axis, with > Philippe> one minor grid per 15 minutes and one major grid per > Philippe> hour, but I can only see 10 fixed grids on all tutorial > Philippe> and documentation. > > Philippe> How can I configure that? > > No support for minor and major ticks yet, but I can add it pretty > quickly, probably for the next release due out soon. I just need a > little information. How do grids interact with major and minor ticks? > I know major ticks are generally bigger and are labeled, and minor > ticks are smaller and not labeled, but I don't know how grid lines are > usually handled with respect to major and minor ticks. If you have a > link to a canonical figure which uses major and minor ticks, I can > follow that example. > > JDH > I've also been playing around with plots versus time (in my case calendar time) and experimenting with tick style and ticklabel placement computed as a function of the time span. I attached a plot of one of my experiments. (This is where the need for multi-line ticklabels comes from.) The ticks and ticklabels that one wants differ according to the span of time plotted. For instance, for multi-year plots, the ticks are no finer than quarterly, but adjust to monthly, weekly, or daily if the span is sub-year. The tick placement is, of course, not uniform, because of the irregularities in the calendar. I have not experimented with sub-day time-spans of the kind shown by Philippe. -Al Schapira |