neato

Filter for drawing undirected graphs.

Overlapping nodes with neato and some fixed nodes

I'm trying to create a layout for a graph where a few nodes have fixed positions and most nodes don't. The output for nodes with fixed positions is correct but the remaining nodes seem to be laid out completely ignoring the fixed nodes (Overlapping nodes and edges). Is this the expected behaviour or am I missing something that would make the layout algorithm incorporate fixed nodes properly?

Tpng

Hello viz wizards  
os x 10.5.8graphviz binary 2.26.3
using this code
<snippet>
| neato -s -n2 -Nlabel='' -Tpng \
    > $0.png
   
test $OPEN && open $0.png
</snippet>
 
get this response:
Couldn't open the file. It may be corrupt or
a file format that preview does'nt recognize.
libpng is installed
 
Harry osoff
 

Splines on edges are not complete?

I'm using graphviz to format a graph inside of an application using the neato engine. When drawing the edges in the graphs using the data from ED_spl, the splines do not reach all the way between the two nodes that they connected. Is spl all there is to an edge's path or am I missing something (looking at the edge_t structures I have in gdb shows that there's not much else). I'm using version 2.26.3.

Neato in FreeBSD, PDF file all white

Hello
 
map.gv 3500 lines, 167KiB
% neato -Tpdf -Gratio=auto -Ecolor=black -Ncolor=black -Goverlap=false map.gv -O
wait 5 min...
pdf, 537KiB white sheet, all shapes and nodes white color in white sheet О_о
 
If map.gv it is small it's ok.
 
Why?

Node Separation by Edge weight or length Attribute

Hi :
I'm using graphviz for showing connectivity between nodes. Each pair of nodes has a specific weight corresponds to their similarity. To my knowledge, neato admits user to specify weight or len attribute on each edge for its length. And I've tried to map similarity of each pair of nodes to corresponding weight or len attribute for each connecting edge.

Initializing nodes for a new mode

 I'm having a problem integrating my code with GraphViz. Namely, I want to provide my method as a mode to neato, but I'm not
sure how to achieve that. After the graph has been read, and the layout computed, I try to assing the positions back to ND_pos(n) for each 
node n. This might be done with proper node initialization after the graph has been read. It is suggested to call
neato_init_node() for each node and common_init_edge() for each edge, but when I include "neato.h" in my header, the message is 

graphviz 2.28 Voronoi-based technique

 I used graphviz neato 2.26 with 

Laying out a "Community Structure"

Thank you in advance to anyone that can offer some advice on this issue. I am trying to layout undirected graphs with nodes ranging from 200 to 2000. currently I am using SFTP, but will can change that if that is indeed the problem. I am trying layout my graphs in a "Community Structure". Please see this URL for definition. There is only one diagram on the Wiki page and is exactly what I want. http://en.wikipedia.org/wiki/Community_structure When I try to layout the graphs the different "Communities" get pushed together like Venn diagram.

Laying out a "Community Structure"

Thank you in advance to anyone that can offer advice on this issue. I am trying to layout undirected graphs with nodes ranging from 200 to 2000. Currently I am using FTP (I've also tried SFTP, NEATO), but can change that if that is indeed the problem. I am trying layout my graphs in a "Community Structure". Please see this URL for definition. There is only one diagram on the Wiki page and is exactly what I want. http://en.wikipedia.org/wiki/Community_structure#Hierarchical_clustering When I try to layout the graphs the different "Communities" get pushed together like Venn diagram. The communities overlap and I would like to pull them apart to see there shape. What I've already tried: • Playing with K, Len, Repulsive, Mode, and Overlap properties • Using CCOMPS - but the problem is that it will just return one graph because there is at least one edge between each "Community" Again, any help would be greatly appreciated.

License: Integrate dot.exe / neato.exe into own software?

Hello, i have looked for some information about integration of compiled versions of neato/dot into an own freeware-project (for research and teaching). Is that possible / possible with particularly license-terms or other additions? Thank you and kind regards from Germany, frieder

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