I have a graph file to draw using "dot". I don't want to show any label for any node. I am wondering how to do this without specifying a configuration for each node since there are too many nodes in the graph.
Try inserting the following line before all node declarations:
node[label=""];
Of course, nodes which have their label property defined will still have their label displayed.
Also, if I remember correctly, at least one node shapes does not use the label:
node[shape=point]
Related
I have a simple fdp graph laid out in graphviz, with a bunch of nodes (rectangle and diamond shaped) having fixed positions, and some of those nodes have child nodes (oval shaped) that I want to be arranged around them automatically.
I want all edges in it to be straight, with no curves or polylines or anything (i.e. as given by splines=false), but I also want those child nodes to not overlap with edges between nodes with fixed positions. The fixed positions are used as I need edges between the fixed nodes to be fully vertical or horizontal. This is something that I probably can achieve by iterating over different start values and hoping that the next one will not have overlaps, but so far this is a bit tiresome.
digraph G {
###GRAPH
layout=fdp
overlap=false
dpi=150
splines=false
inputscale=0.4
# fdp specific:
K=0.50
maxiter=2000
start=1251
###OBJECTS
node[shape=rectangle width=1.0 height=0.4 fixedsize=true]
vendor[label="Поставщик" pos="3,1!"
]
item[label="Товар" pos="0,2!"
]
post[label="Поставка" pos="2,2!"
]
check[label="Чек" pos="1,1!"
]
prod[label="Продажа" pos="0,0!"
]
###SUBOBJECTS
node[shape=oval width=1.5 height=0.5]
edge[arrowhead=none]
{
vendork[label=<<u>ID поставщика</u>>] "Название\nпоставщика" "Контакт\nдля связи"
}->vendor
{
itemk[label=<<u>ID товара</u>>]
Название Тип Подтип Характеристики "Розничная цена"
}->item
{
postk[label=<<u>ID записи</u>>] post1[label="ID товара"]
post2[label="Кол-во"] post3[label="Цена поставки"]
post4[label="Дата"] post5[label="Квитанция"]
}->post
{
prodk[label=<<u>ID продажи</u>>] prod1[label="ID товара"]
prod2[label="Кол-во"] prod3[label="Цена\nпродажи"]
prod4[label="Чек"]
}->prod
{
checkk[label=<<u>ID чека</u>>] Дата Кассир "Сумма" "НДС" "Итого" "Вид оплаты"
}->check
###CONNECTIONS
node[shape=diamond]
edge[arrowhead=open]
vendorpost[label="Поставляет" pos="3,2!"
]
vendorpost->vendor
vendorpost->post[arrowhead=openopen]
postitem[label="Поставлен" pos="1,2!"
]
postitem->item
postitem->post[arrowhead=openopen]
itemprod[label="Продан" pos="0,1!"
]
itemprod->item
itemprod->prod[arrowhead=openopen]
prodcheck[label="Включает" pos="1,0!"
]
prodcheck->prod[arrowhead=openopen]
prodcheck->check
}
(forgive the cyrillics)
I am compiling with no additional parameters (i.e. dot -Tpng graph.gv > graph.png). So far, I get this.
I've tried using neato instead as well, but, in most cases, it gives a pretty weird result, where it seems like it completely ignores the fixed node positions, and draws the child nodes whereever it wants:
I went through the list of attributes in the documentation, and so far none seem to address node/edge overlapping besides splines (unless I've missed something). What should I do to achieve the result I'm looking for?
There are several issues:
layout=fdp causes the fdp layout engine to be used, no matter what the command line says
Use neato -n if you want to nail down the node position (see below)
by adding a ! to the position you are nailing down the pos (it won't change)
dot is not useful here, it is directional (top-down)
If you remove all the !, I think you will get what you want.
So far, one solution I've found is by adding invisible stretched out nodes that cover each edge that is fixed(i.e. between two nodes with fixed positions) by appending this to the graph:
###NO VERTICAL/HORIZONTAL EDGE/NODE INTERSECT HACK
node[style=invis]
node[width=0.1 height=2.0]
t1[label="" pos="0,1.5!"]
t2[label="" pos="0,0.5!"]
t3[label="" pos="1,0.5!"]
t4[label="" pos="3,1.5!"]
node[width=2.0 height=0.1]
t5[label="" pos="2.5,2!"]
t6[label="" pos="1.5,2!"]
t7[label="" pos="0.5,2!"]
t8[label="" pos="0.5,0!"]
node[style=normal]
And this does what I want, i.e. removes all overlaps with fixed edges:
However, this is limited only to edges that are perfectly vertical/horizontal(note that there is still at least 1 overlap in "child" nodes), and overall seems like a really hacky solution as I have to add/change those "support beams" every time I add/change any more nodes to my graph. Is there a better solution to this?
I created a network in D3.js that updates links (both remove and add) as you move the slider back and forth.
However the edges overlap the nodes (as in edges are drawn ontop of the nodes...)
I think https://github.com/agfk/knowledge-maps/issues/1 looks at the issue but I'm not quite sure what it means.
I might have something to do with the order that the lines are drawn as opposed to the nodes but I don't know how to fix that. Svgs also don't come with z-indexes so I can manipulate it through css.
Any help would be appreciated! Thanks!
This link discusses how to determine the order in which elements are drawn. In your case, perhaps you want to draw the edges first and then the nodes:
https://groups.google.com/forum/?fromgroups=#!topic/d3-js/JCXKef_GRCQ
I use d3.js exactly as shown here but with different data value.
When the graph is first shown all elements are scattered and for around a second rapidly move towards their position. This looks nice in the sample, but for my data it does not look so nice. Any way to turn it off so that nodes start in their designated place? Any way to customize this entry visualization?
You can loop through the nodes array and set the .x/.y and .px/.py values to an initial position that you want the nodes in, and by doing so will limit the amount they need to move in their initial layout. If you turn off the force-directed algorithm (the tick() function) then you can apply standard .transtion().duration(500).attr("transform", xx) behavior to the nodes and links to make them animate in a manner you prefer before or after running the force-directed algorithm, but make sure you set the .x/.y and .px/.py attributes to their final position, otherwise they will be reset as soon as you .tick()
Please does anyone know if there's a way to make Graphviz's dot program (note: not neato, although I'd also be somewhat interested in answers for that) auto-fit the width of nodes to accommodate the labels I specify? At the moment I have this
digraph
{
node [shape=record];
n [label="This is a very long caption"];
}
but the node ends up too small to accommodate the caption:
I found an option called fixedsize, which in theory I should be able to set to false in order to make the nodes expand to fit their labels:
http://www.graphviz.org/doc/info/attrs.html#d:fixedsize
Unfortunately, it doesn't work, as this gives me the same result:
digraph
{
node [shape=record, fixedsize=false];
n [label="This is a very long caption"];
}
Any ideas please?
The node label width in your example actually does auto-fit when using dot.
fixedsize=false (default) and any given value for width however should yield the given value for width if the output format is dot:
Note also that, if the output format is dot, the value given to width
will be the final value.
There may be a problem with your version of graphviz - did you try using a recent version?
I'm using PyDot to generate Graphviz/dot graphs in python. I would like to annotate my nodes and edges with images read from files, I've found in the documentation how to put an image as a node, but not how to put an image under a node or even less an edge.
http://www.graphviz.org/doc/info/attrs.html
http://www.graphviz.org/doc/info/shapes.html
http://www.graphviz.org/Documentation/html/shapehowto.html
Does anybody know how to do that?
You can use HTML in the labels for nodes and edges. You can find details here: http://www.graphviz.org/doc/info/shapes.html#html
Basically you can say something
"a" -> "b" [label = <<TABLE><TR><TD><IMG SRC="path/to/picture"/></TD></TR></TABLE>>]
You can add as many rows and columns as you want in the html labels. It's a little more verbose than standard text labels, but you can do a bit more with them.
One method which can work in cases where edges will always be drawn in the same position is to create a PNG with a transparent background and position the icon in the same place that your edge will be drawn, or use the labeldistance/labelangle attributes to move. I'm not familiar with PyDot but using SQL I would create a case to determine whether or not the image is displayed on the node..
Problem with this method is that the graphs which I'm working with are always positioned differently and will never be the same, so in an ideal case I'd like to add the image to the edge label, or under/to the right of the edge label etc. Did you ever manage to find a workaround?