-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sat, 19 Jun 2021 11:48:28 -0700 (PDT) José Cervera <chv...@gmail.com> wrote:
> The Phenology extension is perfect but, offering more possibilities > in basic skin is the objective. There must be some *javascript* modules that already exist for producing real-time graphs from hypertext markup similar to the way algebraic formulae are rendered by MathJax: o https://www.mathjax.org/ Then WeeWX could provide Cheetah *.tmpl files for the charts without having to provide the *imagegenerator.py*. ... but I haven't found any *javascript* charting modules that seem robustly supported. This surely is **not** the focus of *pillow* or *matplotlib*. These are both module libraries for creating image files, not necessarily for rendering charts in *.html. The "P" in *pillow* stands for Python, and it can be used online from well-formed Python *cgi* scripts. If your goal is to force the reader to spend his own machine cycles to render your graphics, then *pillow* is not for you because it runs on the server side, not the client. In the case of WeeWX, *pillow* is called by the *imagegenerator.py*. Then, the resulting offline image files are uploaded to wherever your web page(s) can get at them. You are, however, stuck with whatever functionality is baked into *imagegenerator.py*. *matplotlib* is similar, but with higher-level instructions for rendering different kinds of plots. Neither *pillow* nor *matplotlib* seem to provide any native scripting language for building charts. Instead, they provide libraries of Python object classes for you to use in your own Python scripts. *Gimp* does provide a scripting function, though. It just doesn't seem to be well documented. I believe you're expected to record scripts during a live *Gimp* session and edit them afterward. I gather it's mostly useful for applying a fixed repertoire of filters to photos gathered from the wild. You can use *netpbm* and *imagemagick* for that, too. Both of those can be manipulated from *shell* scripts. It comes down to this IMNSHO: Producing graphs with any degree of flexibility is deucedly difficult because of the wordiness required. The graph options are certainly countable, but they tend toward the infinite. The Phenology Image Generator uses about 70 (a great deal more than the WeeWX Image Generator), and they both produce a fixed repertoire of graphs limited to time-series data. - -- .. Be Seeing You, .. Chuck Rhode, Sheboygan, WI, USA .. Weather: http://LacusVeris.com/WX .. 71° — Wind E 7 mph -----BEGIN PGP SIGNATURE----- iF0EARECAB0WIQT+MY/5I/LMPSswTbVg2/xipKOWUgUCYM5UfAAKCRBg2/xipKOW UmsGAJ4xnnu87cV1smQGqLmti1ci9CRkSACeLi4mvm58VRC9QZD7luWbkGnjqU8= =nGbx -----END PGP SIGNATURE----- -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/20210619153259.6936c6a2%40wealthy.
