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
Related
I made a simple tree structure and displayed it using D3.js. When nodes become too many, it's impossible to see any text.
Fig1 Fig2
I could make an image out of the svg, then render it instead of displaying the tree by d3js and finally using a magnifier to zoom in. I don't know if it can actually work; is there a better and working way to do it?
Well first of all I would recomend placing your lable below the nodes rather than to the right as that will win you some space back but that won't really solve your problem.
I would recomend either making your tree colapse by node
or defining the space between the nodes as a function of how many children there are. For this, you will need to recursively count the children in your tree. You can see how to do that in an answer I gave here
There are likely other solutions but those are the two that jump out at me as the best.
I've been trying to implement a d3 bubble force layout (someone else's existing example here: http://jsfiddle.net/andycooper/PcjUR/1/) but with one added requirement...
I want the bubbles to collect around a centre node which will 1) be the largest node, and 2) shouldn't move. In order to achieve that, I'm hoping to simply create a new svg circle (i.e. avoid adding to the data set in the variable "nodes") that I can then somehow reference in the following method to prevent collisions with it....
function collide(alpha) {
...
}
Sorry for such an open-ended question, but does anyone know if this is possible? (or hopefully has been attempted somewhere before?) So far the only d3 bubble force layouts I've seen have shown ALL nodes with movement bound by force.
Really appreciate any advice!
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()
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?