how can I center label in graphviz ?
digraph "toto" {
graph ["rankdir"="TB"]
node ["shape"="box"]
"BROUILLON" ["label"="Brouillon","margin"="0.4,0.0"]
"A_VALIDER_RH" ["label"="À valider par la RH","margin"="0.4,0.0","color"="red"]
"A_VALIDER_RH" -> "BROUILLON" ["label"="Refuser"]
"BROUILLON" -> "A_VALIDER_RH" ["label"="Soumettre"]
}
I have:
expected:
You will need to use extra nodes for the labels:
digraph "toto"
{
// graph[ "rankdir" = "TB" ]
// nodes
node[ shape = box ];
BROUILLON[ label= "Brouillon", margin = "0.4,0.0" ];
A_VALIDER_RH[ label = "À valider par la RH", margin = "0.4,0.0", color = red ];
node[ shape = plaintext ];
n1[ label = "Soumettre" ];
n2[ label = "Refuser" ];
// edges
BROUILLON -> n1 -> A_VALIDER_RH;
BROUILLON -> n2 -> A_VALIDER_RH[ dir = back ];
}
yields
Related
I am new to node-graphviz, which is a Node.js interface to the GraphViz graphing tool.
I want to draw a directed graph and save it into memory using the code:
var graphviz = require('graphviz');
var debug = true;
function draw (hbGraph) {
/** Create the digraph */
var vGraph = graphviz.digraph('Happens-Before-Graph'),
eventNodes = {};
/** Create nodes for digraph */
for (var i = 0; i < hbGraph.eventNodes.length; i++) {
/** Note, eventNodes is a sparse array */
var event = hbGraph.eventNodes[i];
if (event != undefined) {
var node = vGraph.addNode(event.id, {
'color': common.COLOR.GREY,
'style': common.STYLE,
});
eventNodes[node.id] = node;
}
}
/** Create edges for digraph, just ignore for this question */
if (debug) {
// Create digraph G
var g = graphviz.digraph("G");
// Add node (ID: Hello)
var n1 = g.addNode( "Hello", {"color" : "blue"} );
n1.set( "style", "filled" );
// Add node (ID: World)
g.addNode( "World" );
// Add edge between the two nodes
var e = g.addEdge( n1, "World" );
e.set( "color", "red" );
// Print the dot script
console.log( g.to_dot() );
// Set GraphViz path (if not in your path)
g.setGraphVizPath( "/usr/local/bin" );
// Generate a PNG output
g.output( "png", "test01.png" );
}
console.log( vGraph.to_dot() );
vGraph.setGraphVizPath( "/usr/local/bin" );
vGraph.output('png', 'test02.png');
}
After running the code, file test01.png is generated while file test02.png is not without any exception. Both two results of to_dot() methods are successfully printed on the console.
The printout of to_dot() method for test02.png is:
digraph Happens-Before-Graph {
"1" [ color = "grey" ];
"7" [ color = "grey" ];
"8" [ color = "grey" ];
"9" [ color = "grey" ];
"10" [ color = "grey" ];
"11" [ color = "grey" ];
"12" [ color = "grey" ];
"13" [ color = "grey" ];
"14" [ color = "grey" ];
}
I want to why file test02.png is not generated and how it can be generated. Could anyone help me?
In addition, the documenation about this library cannot be generated, so I am unfamiliar with it.
Additional information: link to node-graphviz is node-graphviz
The answer is just to remove the minus sign - in the digraph.
Since the documentation of node-graphviz cannot be built, I just post the right answer here.
I'm working on an auto-generated Graphviz (so it need to be a general solution, not for this particular example). It draws the topology of a network. but the results inside the cluster don't look organised.
Here is the topology:
Here is the associed code :
digraph G {
splines=polyline;
subgraph cluster_sh5sl8 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh5sl8_L1 [label = "L1"];
label = "5/8";
}
subgraph cluster_sh5sl10 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh5sl10_L1 [label = "L1"];
label = "5/10";
}
subgraph cluster_sh5sl12 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh5sl12_L1 [label = "L1"];
label = "5/12";
}
subgraph cluster_sh5sl14 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh5sl14_L1 [label = "L1"];
label = "5/14";
}
subgraph cluster_sh5sl16 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh5sl16_L1 [label = "L1"];
label = "5/16";
}
subgraph cluster_sh6sl3 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh6sl3_L1 [label = "L1"];
label = "6/3";
}
subgraph cluster_sh6sl8 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh6sl8_L1 [label = "L1"];
label = "6/8";
}
subgraph cluster_sh6sl10 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh6sl10_L1 [label = "L1"];
label = "6/10";
}
subgraph cluster_sh6sl12 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh6sl12_L1 [label = "L1"];
label = "6/12";
}
subgraph cluster_sh6sl14 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh6sl14_L1 [label = "L1"];
label = "6/14";
}
subgraph cluster_sh6sl16 {
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh6sl16_L1 [label = "L1"];
label = "6/16";
}
subgraph cluster_sh30sl1 {
rank=same;
style=filled;
color=lightgrey;
node [style=filled,color=white];
sh30sl1_9600 [label = "9600"]; sh30sl1_9590 [label = "9590"]; sh30sl1_9580 [label = "9580"]; sh30sl1_9570 [label = "9570"]; sh30sl1_9560 [label = "9560"]; sh30sl1_9280 [label = "9280"]; sh30sl1_9270 [label = "9270"]; sh30sl1_9260 [label = "9260"]; sh30sl1_9250 [label = "9250"]; sh30sl1_9220 [label = "9220"]; sh30sl1_9190 [label = "9190"]; sh30sl1_OMD [label = "OMD"];
label = "30/1";
}
sh30sl1_9570 -> sh5sl8_L1;
sh30sl1_9560 -> sh5sl10_L1;
sh30sl1_9280 -> sh5sl12_L1;
sh30sl1_9270 -> sh5sl14_L1;
sh30sl1_9260 -> sh5sl16_L1;
sh30sl1_9220 -> sh6sl3_L1;
sh30sl1_9250 -> sh6sl8_L1;
sh30sl1_9190 -> sh6sl10_L1;
sh30sl1_9600 -> sh6sl12_L1;
sh30sl1_9590 -> sh6sl14_L1;
sh30sl1_9580 -> sh6sl16_L1;
sh6sl12_L1 -> sh30sl1_9600;
sh6sl14_L1 -> sh30sl1_9590;
sh6sl16_L1 -> sh30sl1_9580;
sh5sl8_L1 -> sh30sl1_9570;
sh5sl10_L1 -> sh30sl1_9560;
sh5sl12_L1 -> sh30sl1_9280;
sh5sl14_L1 -> sh30sl1_9270;
sh5sl16_L1 -> sh30sl1_9260;
sh6sl8_L1 -> sh30sl1_9250;
sh6sl3_L1 -> sh30sl1_9220;
}
Note that I'm using FDP, but I can use anything else if it works. Currently, FDP gives me the best results.
How can I order this?
I already tried with clusterrank, ranksep, nodesep, constraint=false, or call them in another order, etc. I tried create un inivible node and link every other node inside a cluster to make them equidistant, but it didn't work.
I do not have an answer yet that would work with generated results- I have a similar issue where I can modify the graphviz file myself:
with
<graphviz>
digraph hierachy {
rankdir="LR"
graph [ordering="out"];
subgraph cluster_Hierachie {
label="Hierachie"
n0
n10000
n20000
n30000
n40000
n50000
n0->n10000
n0->n20000
n0->n30000
n0->n40000
n0->n50000
}
}
</graphviz>
which is rendered as:
and so far found the following links:
Preventing graphviz from rearranging nodes
please note the different suggestions on how to specify "ordering=out"
digraph g {
ordering=out ;
or
digraph bt {
graph [ordering="out"];
none of these work for me although https://stackoverflow.com/a/9169194/1497139 got 1 upvote and https://stackoverflow.com/a/9168680/1497139 has 2 upvotes
http://www.graphviz.org/content/ordering-edges
suggests to use
rank=same
so I tried:
<graphviz>
digraph hierachy {
rankdir="LR"
graph [ordering="out"];
subgraph cluster_Hierachie {
label="Hierachie"
n0
n10000
n20000
n30000
n40000
n50000
n0->n10000
n0->n20000
n0->n30000
n0->n40000
n0->n50000
{
rank=same;n0;n10000;n20000;n30000;n40000;n50000
}
}
}
</graphviz>
which renders as:
http://www.graphviz.org/content/cluster-changes-nodes-order
suggests to add
style=invis
{ rank=same 0 -- 1 [style=invis]
}
nodes. I tried that to no avail and ended up doing
<graphviz>
digraph hierachy {
rankdir="LR"
graph [ordering="out"];
subgraph cluster_Hierachie {
label="Hierachie"
n0
n10000
n20000
n30000
n40000
n50000
n0->n50000
n0->n40000
n0->n30000
n0->n20000
n0->n10000
}
}
</graphviz>
which renders as:
which I consider to be a valid work-around given the strange behavior of reverse ordering in clusters.
I've recently been using dot to create flow- and callgraphs of a rather complex assembly program. All in all this works perfectly fine, with just a little hickup. Sometimes, when drawing a line from one node inside a cluster to another node in a different cluster, the line somehow doubles.
I've added a stripped down version of my problem as code and a dot output image.
Thanks
digraph G {
ratio=auto; node[fontsize=12]; label="boot"; newrank=true;
{
node[shape=plaintext];
1->2[arrowsize=0.7,penwidth=0.1];
}
Reset->uart_init[arrowsize=0.7, penwidth=0.1];
{ rank=same; "Reset"; "1"; }
{ rank=same; "uart_init"; "2"; }
/* terminalhooks cluster */
subgraph cluster42 {
fontsize=12;
label="terminalhooks.asm";
labelloc=b;
type->emit[arrowsize=0.7,penwidth=0.1];
emit[label=<emit<BR/><FONT POINT-SIZE="8">Terminal redirection hooks<BR/>für eventuelle Umleitungen</FONT>>];
}
/* stm-terminal cluster */
subgraph cluster43 {
fontsize=12;
label="stm-terminal.asm";
labelloc=b;
emit->serial_emit->serial_qemit[arrowsize=0.7,penwidth=0.1];
serial_emit[label=<serial_emit<BR/><FONT POINT-SIZE="8">Ausgabe Char via UART</FONT>>];
serial_qemit[label=<serial_qemit<BR/><FONT POINT-SIZE="8">Prüft TXE (Transmit Buffer Empty)</FONT>>];
}
{ rank=same; "type"; "emit"; "serial_emit"; "serial_qemit"; }
}
dot graph
I have no idea why this happening, but adding tailport=e seems to fix it:
emit->serial_emit->serial_qemit[tailport=e,arrowsize=0.7,penwidth=0.1];
# -----^-----
Edit:
It appears the newrank atr causing the problem.
digraph G {
newrank=true;
subgraph cluster42 {
0;
1;
0->1;
}
subgraph cluster43 {
2;
3;
1->2->3;
}
{ rank=same; 0; 1; 2; 3; }
}
produce:
but if you remove:
newrank=true;
it produce:
Edit 2:
For this example you can use rankdir=LR and remove the rank=same:
digraph G {
rankdir=LR;
subgraph cluster42 {
0;
1;
0->1;
}
subgraph cluster43 {
2;
3;
1->2->3;
}
}
maybe you can do same with your complex graph too.
I want to have the 'start middle end' label appear at the top of my graph
But it seems to default to the bottom no matter where I put the code. Is it possible?
digraph G {
rankdir=LR;
{node [shape=plaintext, fontsize=16];
"Start"->"Middle"->"End"[style=invis];
}
node [shape=box];
{ rank=same
"Start";a;
}
{ rank=same
"Middle";b;d;
}
{ rank=same
"End";c;e;
}
"a"->"b"->"c";
"d"->"e";
}
This works for me.
digraph G {
rankdir=LR;
{
node [shape=box];
blank [style=invisible]
blank -> d [style=invisible dir=none]
"a"->"b"->"c";
"d"->"e";
}
{
node [shape=plaintext, fontsize=16];
"Start"->"Middle"->"End"[style=invisible dir=none];
}
}
This may be related to How to place edge labels ON edge in graphviz: I have the following graph, which I visualize using the command dot -Teps g.dot > g.eps:
graph triple {
node [shape=box]; User; Object; Tag;
node [shape=diamond,style=filled]; Triple;
{
User -- Triple [label = "1"];
Object -- Triple [label = "1"];
}
{
rank=same;
User;
Object;
}
Triple -- Tag [label="n"];
}
I would like the result to be more symmetric by putting the label between User and Triple on the left side of the graph.
Manual placement of edge labels cannot be done with graphviz.
However, you could use the headlabel, labeldistance and labelangle attributes:
graph triple {
node [shape=box]; User; Object; Tag;
node [shape=diamond,style=filled]; Triple;
{
User -- Triple [headlabel = "1", labeldistance=2.5, labelangle=20];
Object -- Triple [headlabel = "1", labeldistance=2.5, labelangle=-20];
}
{
rank=same;
User;
Object;
}
Triple -- Tag [label="n"];
}
Output:
And here's the second workaround using splines=false and double edges:
graph {
splines=false;
node [shape=box]; User; Object; Tag;
node [shape=diamond,style=filled]; Triple;
{
User -- Triple [label = "1"];
User -- Triple [label = ""];
Object -- Triple [label = ""];
Object -- Triple [label = "1"];
}
{
rank=same;
User;
Object;
}
Triple -- Tag [label="n"];
}
Output:
I gave up trying to get it to work in Graphviz. Instead, I rendered as a pdf, marked up the pdf to add labels myself, and then flattened the pdf into a new pdf so the markups would be part of the pdf.