Hi Tiago and all Thank you very much for adding this functionality to graph-tool, I could use this for sure. The only problem is, that since you've sent this email, I'm trying to recompile the newest version of graph-tool and after lots of trouble I managed to get it compiled and working, (without sparsehash unfortunately) (the bigges problems I faced with not enough memory, but never mind), now I have the working graph-tool 2.16 and stil if I try to call the: planar_position = graph_tool.draw.planar_layout(Graph_of_the_knot, pos=None) function it prints: Traceback (most recent call last): File "./knot_representations.py", line 1947, in <module> Crossings_adjacency_matrix = CrossingsAdjacencyMatrix(Nr_of_crossings, Nr_of_ropes, Starting_points, Rope_path_length, Crossings_chirality, Connections_dict_inv, Connections_dict) File "./knot_representations.py", line 1526, in CrossingsAdjacencyMatrix planar_position = graph_tool.draw.planar_layout(Graph_of_the_knot, pos=None) AttributeError: 'module' object has no attribute 'planar_layout' Am I doing something wrong, or I'm not using the right version? I've downloaded graph-tool 2.16 from the site. I would also like to ask something about the sfdp.layout in the draw tool. Can I set the C parameter, *C* : float (optional, default: 0.2) Relative strength of repulsive forces. separately for some vertices? I assume that I can't, because it's not a property map, but I thought I'll ask. Thx Csongor On Mon, Apr 25, 2016 at 9:30 AM, <graph-tool-request@skewed.de> wrote:

Send graph-tool mailing list submissions to graph-tool@skewed.de

To subscribe or unsubscribe via the World Wide Web, visit https://lists.skewed.de/mailman/listinfo/graph-tool or, via email, send a message with subject or body 'help' to graph-tool-request@skewed.de

You can reach the person managing the list at graph-tool-owner@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. Re: First question - Planarity (Tiago de Paula Peixoto) 2. Re: First question - Planarity (Alexandre Hannud Abdo) 3. Re: First question - Planarity (Tiago de Paula Peixoto) 4. Re: How to see the relations between two groups of blocks in a bipartite network? (Andrea Briega)

----------------------------------------------------------------------

Message: 1 Date: Sun, 24 Apr 2016 21:48:43 +0200 From: Tiago de Paula Peixoto <tiago@skewed.de> To: graph-tool@skewed.de Subject: Re: [graph-tool] First question - Planarity Message-ID: <cb99c96b-6dd5-e142-8e14-4efc7f97969b@skewed.de> Content-Type: text/plain; charset="utf-8"

On 20.04.2016 17:01, Tiago de Paula Peixoto wrote:

...

On 20.04.2016 14:20, Matyas, Csongor wrote:

...

I will also post my first question, this was the main reason why I registered for this mailing list. The description and examples were usually more than enough for me to use graph_tool, nice job ;) I have a question though. In the "|graph_tool.topology.||is_planar|(/g/, /embedding=True///)" how do I use the embedding information to print my graphs planar. Do I have to do that for myself, or there is a built in function that I didn't find? Do I have to add the edges following the order that they come using the embedding somehow?

Here is one way it can be used to draw the graph:

http://www.boost.org/doc/libs/1_60_0/libs/graph/doc/straight_line_drawing.ht...

...

However, this function is not yet implemented in graph-tool.

FYI, I have just added this functionality to graph-tool:

https://graph-tool.skewed.de/static/doc/dev/draw.html#graph_tool.draw.planar...

Best, Tiago

-- Tiago de Paula Peixoto <tiago@skewed.de>