How can I keep a particular node in same location ? I mean I run force layout tick moves nodes around but I want a particular node to stay at same position despite force layout ?
Which version are you using d3 v3 or v4?
In d3 v3, setting fixed = true will ensure that the node is in place. Make sure, that the node has correct x, y values or let the simulation run so that nodes will stabilize before setting fixed = true.
In v4, setting fx and fy properties of the nodes to the coordinate will ensure that the node doesn't move from that coordinate.
Check documentation for more info:
https://github.com/d3/d3-force/blob/master/README.md#simulation_nodes
setting fixed = true solved the issue.
Related
I use d3-org-chart and I wonder if it's possible to position the bottommost elements below each other instead of on the same level:
There are some exposed variables that can be adjusted but I couldn't find a property that would do the job.
If this feature isn't build-in, would it be possible to achieve this via adding a function using vanilla d3.js? I would we very happy for hints or recommendations how to tackle this.
Yes draw the paths end of the svg and align leaf nodes to bottom of the svg
I have a force network graph (in a Drupal site) which does what I want it to (thanks to many members of stackoverflow) but it ends up about 400px from the top and left margins of the content area.(see http://trsg.tcan.ca/stronger-together-network)
Which parameters control this?
The force layout is designed to distribute items in the available space. When you create a force layout, you set the size of the available area, and the nodes are attracted to the center of the area.
You can either set a smaller area for the network chart or lower the attraction between the nodes and the center, by setting the charge attribute of the force to a greater value. The default value is -30, try with -10 or -5.
Assigning the layout to Body instead of a DIV solved the problem. (In most other scripts I had to use a DIV and using Body caused problems.)
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()
I'm trying to use Graphviz via its C library to draw edges between nodes which are fixed in position. The problem, however, is that many of the edges use the same source and target nodes, and for some reason they get drawn using the exact same coordinates, resulting in complete overlap.
Is there some obvious attribute that I've forgotten to set which causes this behavior? I'm using the code provided from http://mupuf.org/blog/article/34/ since I'm using Qt to draw the edges.
Apparently, this doesn't work when splines="true". Leaving it unset or setting it to "false" invokes the behaviour I want.
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]