graph-tool February 2016

graph-tool@skewed.de

11 participants
23 discussions

Smoothing edge connections
by Joseph Redfern 05 Feb '16

05 Feb '16

Hi All, I'm trying to make the output of my graph-tool drawings a little more pretty. At the moment, if I have two thick edges that intersect at an angle other than 0°, there is some uglyness at the corners; see: http://i.imgur.com/CuEDoth.png and http://i.imgur.com/r54Mp9E.png. It may be worth mentioning that I'm manually setting vertex positions (by specifying `pos` in my graph_draw call). I've mentioned this on the #cairo IRC channel, and they suggest it may be because graph-tool is considering each edge as a seperate line, rather than being part of a larger path - could you confirm that this is the case? It was also suggested that I changing the line caps (presumably to have rounded ends) would solve it - does the API exposed by graph-tool allow this? In cairo, it would be a call to set_line_cap(). Many thanks, Joe

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Re: [graph-tool] graph-tool Digest, Vol 97, Issue 2
by m jadidi 02 Feb '16

02 Feb '16

In case attachment is not available here is the code: http://pastebin.com/n06tT8Kc On Tue, Feb 2, 2016 at 3:47 PM, <graph-tool-request(a)skewed.de> wrote: > Send graph-tool mailing list submissions to > graph-tool(a)skewed.de > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.skewed.de/mailman/listinfo/graph-tool > or, via email, send a message with subject or body 'help' to > graph-tool-request(a)skewed.de > > You can reach the person managing the list at > graph-tool-owner(a)skewed.de > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of graph-tool digest..." > > > Today's Topics: > > 1. slow plot generation with mplfig (m jadidi) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 2 Feb 2016 15:46:55 +0100 > From: m jadidi <mohsen.jadidi(a)gmail.com> > To: graph-tool(a)skewed.de > Subject: [graph-tool] slow plot generation with mplfig > Message-ID: > <CAOfo52C-OUSeO= > tFn6QXPnWa5tU2bu6mevVLes+c_FHdSO+0ew(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > I am using graph-tool to generate an animation. For this I need to use > matplotlib because I should add some extra information to the plot. (see > the attachment). so I first generate a series of plots and then use ffmpeg > to generate my animation. The problem is when I use mplfig and savefig it > takes alot of time to generate my png files. When I simply use output > argument in graph_draw (that means no extra information, only nodes and > edges) it is fast. Is there any solution for this? you can find the > relevant parts of my code in the attachment. > > best, > -- > Mohsen >

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slow plot generation with mplfig
by m jadidi 02 Feb '16

02 Feb '16

I am using graph-tool to generate an animation. For this I need to use matplotlib because I should add some extra information to the plot. (see the attachment). so I first generate a series of plots and then use ffmpeg to generate my animation. The problem is when I use mplfig and savefig it takes alot of time to generate my png files. When I simply use output argument in graph_draw (that means no extra information, only nodes and edges) it is fast. Is there any solution for this? you can find the relevant parts of my code in the attachment. best, -- Mohsen

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graph-tool February 2016