January 2014 - graph-tool - archives.skewed.de

installing graph tool on Mac OS X 10.8 by MacPorts
by Igor Strozzi 28 Jan '14

28 Jan '14

Hello. Installing graph tool is quite harsh (at least for me) due to the large dependency on previously installed libs. MacPorts seems useful since it finds and install automatically all dependencies of any lib you`re trying to install. These benefits notwithstanding, I'm having some troubles while concluding my installation. After installing all required libs using MacPorts, I can't configure graph tool (by ./configure). Using ./configure purely, I get this: checking consistency of all components of python development environment... no configure: error: in `/Users/JaquelinyLima/Documents/graphtool': configure: error: Could not link test program to Python. Maybe the main Python library has been installed in some non-standard library path. If so, pass it to configure, via the LDFLAGS environment variable. Example: ./configure LDFLAGS="-L/usr/non-standard-path/python/lib" ============================================================================ ERROR! You probably have to install the development version of the Python package for your distribution. The exact name of this package varies among them. Using ./configure PYTHON=/Apps/MacPorts/Python2.7 (macports location): ================ Detecting python ================ checking whether /Apps/MacPorts/Python2.7 version is >= 2.6... no configure: error: Python interpreter is too old

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Ring layout
by julien.siebert 15 Jan '14

15 Jan '14

Hi everyone, I cannot find a simple way to plot a network with all nodes on a circle. So I develop this method (which do the job): def ring_layout(g,radius = 100): N = g.num_vertices() pos = g.new_vertex_property("vector<double>") for v in g.vertices(): i = g.vertex_index[v] posv = Vector_double() posv.append(radius*cos(2.*i*pi/N)) posv.append(radius*sin(2.*i*pi/N)) pos[v] = posv return pos Is there a simpler way to do this in graph_tool? Is there something that I am missing? Thanks. Best regards, Julien -- View this message in context: http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com… Sent from the Main discussion list for the graph-tool project mailing list archive at Nabble.com.

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List of non-neighbours
by julien.siebert 15 Jan '14

15 Jan '14

Hi everyone, I do not think there is a graph_tool method to return the non neigbours of a given vertex. I am wondering if there is a faster/ more efficient way than calling: non_neigbours = [g.vertex_index[v] for v in g.vertices() if v not in mynode.all_neighbours() and v != mynode] where g is a graph and mynode is a given vertex. Sincerely yours, Julien -- View this message in context: http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com… Sent from the Main discussion list for the graph-tool project mailing list archive at Nabble.com.

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Build issue with boost::python
by Gerry Steele 07 Jan '14

07 Jan '14

Hi. I've looked at previous posts based on similar issues but cannot find anything useful. I have built boost (1.53.0) using a shared python (2.7) build i built myself. I tried both default boost build as well as ./b2 -j 9 link=static,shared threading=multi However it still fails to build. config.log here: https://dpaste.de/dAIW Input would be appreciated as I can only build in this way without a package manager. Also note that i had to change some lines in the configure to get it to this point already. Namely -Wno-unused-local-typedefs and -std=gnu++0x I'm using gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-48) on RHEL 5.5

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Python install build issue
by Gerry Steele 06 Jan '14

06 Jan '14

I've searched the forum repeatedly and not found anything helpful despite this issue being posted 5 or 6 times sadly. I'm working in an environment where I need to build all dependencies from scratch. I've failed at the first hurdle with: > Could not link test program to Python. Maybe the main Python library has been installed in some non-standard library path. If so, pass it to configure via the LDFLAGS environment variable. Note I have built the python install i need to use myself. So when i try: $ ./configure --prefix=`pwd`/gt-inst LDFLAGS="-L/home/gs/Python-2.7.6/python-2.7.6/lib/python2.7/lib" Or similar i just get the same error. What is different about the python install graph-tool configure expects? Thanks Gerry

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