William talks about D3.js. Le 19 nov. 2015 18:53, "John Cremona" <[email protected]> a écrit :
> Thanks -- I was half-expecting Nathann to be the first to reply! I > don't (or rather, did not) know what D3 is...and I think I will wait > for someone else to do that for the LMFDB & isogeny graphs. Meanwhile > it would still be nice to cut out the whitespace. > > John > > On 19 November 2015 at 12:19, William Stein <[email protected]> wrote: > > On Thu, Nov 19, 2015 at 8:55 AM, John Cremona <[email protected]> > wrote: > >> I need to plot some graphs, save them and embed the results in a web > >> page, for example this: http://www.lmfdb.org/EllipticCurve/Q/11/a/ > >> > >> The graph itself is created from its adjacency matrix (with some > >> adjustment of the vertex positions to look good for some of the more > >> complicated examples). But there is too much whitespace around the > >> resulting plot (which I go on to encode using > >> matplotlib.backends.backend_agg.FigureCanvasAgg). Nothing I do seems > >> to get rid of it! > >> > >> > >> To test this, try > >> > >> sage: EllipticCurve('11a1').isogeny_graph().show() > >> > >> > >> Instead of a square box around this graph I would like a rectangle > >> which matches its shape without all the whitespace at the top and > >> bottom. Not that other graphs have different shapes! e.g. > >> EllipticCurve('15a1').isogeny_graph().show() > > > > Aside for the long run: since you're presenting this information on > > the web, it would be way nicer to use D3. E.g., like this: > > > > > https://cloud.sagemath.com/projects/4a5f0542-5873-4eed-a85c-a18c706e8bcd/files/support/2015-11-19-isogeny-cremona.sagews > > > > (this uses some code that Nathann Cohen sent me) > > > > Note that the renderer here evidently doesn't have edge labels > implemented. > > But using D3 (or something built on it) is the future for showing > > "networks" in a webpage. There's many javascript libraries that > > attempt to solve this problem these days. > > > >> > >> John > >> > >> -- > >> You received this message because you are subscribed to the Google > Groups "sage-support" group. > >> To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > >> To post to this group, send email to [email protected]. > >> Visit this group at http://groups.google.com/group/sage-support. > >> For more options, visit https://groups.google.com/d/optout. > > > > > > > > -- > > William (http://wstein.org) > > > > -- > > You received this message because you are subscribed to the Google > Groups "sage-support" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > > To post to this group, send email to [email protected]. > > Visit this group at http://groups.google.com/group/sage-support. > > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "sage-support" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/sage-support. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
