]]>
In fact I think it was already implemented in the legend module (which will be merged some day...). You can check a demo here: https://github.com/eduramiba/gephi/rele ... gend-alpha
Statistics:Posted by eduramiba — 22 Feb 2017 10:11
]]>
https://www.facebook.com/groups/gephi
Statistics:Posted by seinecle — 22 Feb 2017 09:15
]]>
Is this still a planned feature? I know there is a workaround, but it is a bit cumbersome and can lead to some inaccuracy in the data. Have seen quite a few requests and plans (including in the visualization API) for this but I can't seem to find the functionality anywhere.
Any information is appreciated. Maps are handy, but this would be extremely helpful to use in creating networks on city plans.
Best,
Will
Statistics:Posted by William3 — 21 Feb 2017 22:09
]]>
Statistics:Posted by scienceviz.com — 03 Aug 2014 15:44
]]>
]]>
If you still follow this thread, this new plugin might be of help:
https://marketplace.gephi.org/plugin/maps-of-countries/
Best,
Clement
Statistics:Posted by seinecle — 24 Sep 2013 11:46
]]>
Many thanks,
Bernd
Statistics:Posted by Netwerker — 21 Feb 2013 22:31
]]>
Eduardo
Statistics:Posted by eduramiba — 30 Jul 2012 18:34
]]>
I'm new to gephi, and am looking to make a graph on top of an image (which happens to be a map, but could be any image in theory).
I wouldnt even mind if i had to freeze the graph at a particular resolution in order to be able to draw it on top of a fixed resolution image.
I just dont see any way of importing a background in gephi.
Any help would be greatly appreciated!
_d
Statistics:Posted by definex — 28 Jul 2012 21:03
]]>
kobeoudom wrote:hey guys.. i am so new to Gephi and Geolayout..I got data from of cites from dbpedia and geoname with their latitude and longitude. I wanna put those cites according to their lat and lang on Geolayout and map them on the map background ..could you give some idea to do that..
thx
Kobe
Hi, Kobethx
Kobe
You will need to place the map image manually under the graph, outside of Gephi.
I did it once and it was not as painful as it sounds. My approach was:
Apply Geolayout and export SVG file
Obtain a map image that suits the graph
Open the SVG file with Inkscape and add the map image behind nodes and edges
Move and resize the map image to make it match the cities in the graph
Eduardo
Statistics:Posted by eduramiba — 07 Jul 2012 13:20
]]>
thx
Kobe
Statistics:Posted by kobeoudom — 04 Jul 2012 13:42
]]>
vlabatut wrote:hi,
i'd be interested in a layout plugin taking euclidean coordinates as parameters, e.g. (x,y)
the closest i found was this plugin, but here node locations are described in terms of latitude and longitute, though
does anyone know if what i'm looking for exists?
thanks!
vincent
i actually could manage to get what i wanted, so if it interests someone, here's the way:i'd be interested in a layout plugin taking euclidean coordinates as parameters, e.g. (x,y)
the closest i found was this plugin, but here node locations are described in terms of latitude and longitute, though
does anyone know if what i'm looking for exists?
thanks!
vincent
using the GeoLayout layout, set parameters lattitude and longitude to your Y and X attributes, respectively (and not the opposite). then choose the equirectangular projection, and you're done.
cheers.
Statistics:Posted by vlabatut — 21 May 2011 08:15
]]>
the closest i found was this plugin, but here node locations are described in terms of latitude and longitute, though
does anyone know if what i'm looking for exists?
thanks!
vincent
Statistics:Posted by vlabatut — 15 Feb 2011 14:34
]]>
gusy wrote:Anyway, we've been working in different directions, so we're lucky. I've been looking for solve the map image in the background of the graph .I found the best way to do it is implementing a WMS (Web mapping sevice) client which request from a server the map image which contains the nodes in the network (in GIS software, this is called bounding box).
I was just wondering if you were still pursuing that direction, and how it was going.Statistics:Posted by mortfrog — 02 Jul 2010 16:20
]]>
]]>
Just to say that Open Street Map is a beautiful project and a good opportunity for open source softwares to reuse public data. Don't hesitate to contact them as soon as you release!
Statistics:Posted by admin — 21 Apr 2010 18:20
]]>
Anyway, we've been working in different directions, so we're lucky. I've been looking for solve the map image in the background of the graph .I found the best way to do it is implementing a WMS (Web mapping sevice) client which request from a server the map image which contains the nodes in the network (in GIS software, this is called bounding box).
About the trouble with the geodesic formula, no so big. You just have to be compliant with the choosen map projection. Most of the maps (google maps for example, use Mercator projection, whose math are well defined in wikipedia
after some research, (for example I discover Google maps for desktop applications doesn't give you over 640x640 pixels maps, so is not usable for us) I decided to use openStreetmap WMS (http://www.osm-wms.de/) by now, it only provides Europe maps, but the good thing is if I code a plugin for WMS, any other WMS Server can be choosen (maybe could be choosen according user preference or so). Depending on the needs, one maps or others are good (Exampe, Madrid municipality provides WMS services very detailed for madrid streets, and NASA WMS provides very good satelites images for worldwide maps)
Statistics:Posted by gusy — 21 Apr 2010 16:06
]]>
Great to hear such good news from you, you may be the first one publishing a plugin to our plugin center!!
The best is that actually I was already looking for such a layout plugin and I already have some code to share. So you can take a look, most of the work is probably already done, as you have all the infrastructure.
The layout has the following feature:
* When inited, iterates over all columns in the data and looks for "lat", "latitude", "lon" and "longitude" columns. Alternatively, proposes column property editing. Users can select on which column are latitude and longitude.
* Scales and Rotates: It recenters the graph's centroid on 0 to do that well.
* Proportional displacement. For each node, target point is fixed but at each frame it moves only a fraction of displacement. So everything appears smoother.
There is only one big issue, I'm not sure about me geoloc formula... I'm not expert but I'm transforming my latitude/longitude from spherical coordinates to Cartesian and then project it to X/Y only. With my dummy sample dataset, coordinates seems OK but not exactly, as its not enough scaled on X. With some time and concentration I'm sure that could be fixed.
I made my code available on Launchpad. I created a branch from the Gephi trunk with this additional module named GeoLayout. When pulling this branch you just have to open the project in Netbeans, build and run. You can see the branch lp:~mathieu.bastian/gephi/geolayout here. To get it just run
CODE:
bzr branch lp:~mathieu.bastian/gephi/geolayoutLater, we could discuss about the background map. I don't currently have an idea how to do this simply
Statistics:Posted by mbastian — 15 Apr 2010 21:32
]]>
Since this is my first post in this forum, I'd like to congratulate the developers of gephi for the great job they did.
I'm student in Telecomunications making my diploma thesis in the topic of complex networks, and in part of my thesis I had to evaluate and test most of grapsh visualization and analysis software, and I do believe gephi is a breakthrough in this field. It combines the usability of cytoscape and the power of Pajek, and includes something new: multi-process system and GL acelerated rendering.
That's why I chose gephi as the platform I'm going to develope some plugins. My research is funded by Orange (France Telecom Spain) and they are interested in developing georeference tools for networks, (that's why this message is in this thread)
So, the proposed idea in this thread, which is creating a layout able to locate nodes according their coordinates and adding a background image from a map server, I want to make it real.
I've already started to check documentation and reading other posts in this forum, but I'd like to have good communication flow with developers team.For example, there is a request for adding image as background, which is part of my plugin specification. So if someone is already working on that, I'd like to know, so that I won't reinvent the wheel xD
That's it. If anyone wants to join me or at least guide me (some of the developers) it will be more that good for me. I'll work for 2 weeks almost full time in this plugin. I hope I'll have time to finish it.
Statistics:Posted by gusy — 14 Apr 2010 17:17
]]>