Is there any way to freeze the layout with forceNetwork() in the {networkD3} lib?
This is taking me a lot of time, because of the number of nodes that my network has. I just need to stop the animation. I found something here, but didn't solve my problem.
Here is part of my code:
p <- forceNetwork(Links = links,
Nodes = nodes,
Source = 'source',
Target = 'target',
NodeID = 'name',
Group = 'group',
Value = "value",
Nodesize = "size",
radiusCalculation = JS("d.nodesize"),
zoom = TRUE,
arrows = FALSE,
linkWidth = JS("function(d){return d.value;}"),
linkDistance = JS("function(d){return d.value*10}"),
charge = gravity,
opacity = 0.95,
fontSize = 24,
linkColour = "#424242"
)
customJS <-
"function() {
d3.selectAll('.node text').style('fill', 'white').attr('stroke-width', '.1px').attr('stroke', '#3f3f3f');
d3.select('body').style('background-color', '#15171a');
d3.layout.force().tick();
d3.layout.force().stop();
}"
g <- htmlwidgets::onRender(p, customJS)
g
You could stop the simulation, run forward through the ticks without updating the positions (effectively the "animation"), and then restart the simulation so the nodes' positions are updated...
library(networkD3)
p <-
forceNetwork(
Links = MisLinks,
Nodes = MisNodes,
Source = "source",
Target = "target",
Value = "value",
NodeID = "name",
Group = "group",
opacity = 0.4,
zoom = TRUE
)
customJS <- '
function() {
simulation = this;
simulation.stop();
for (var i = 0; i < 300; ++i) simulation.tick();
simulation.nodes().forEach( function(d,i) {
d.cx = d.x;
d.cy = d.y;
});
simulation.restart();
}
'
htmlwidgets::onRender(p, customJS)
I've also been working on a successor to {networkD3} that can do this easily (although by default it uses canvas instead of SVG, and therefore it can handle much more data, even with the animation)...
library(network.r2d3)
url <- "https://gist.githubusercontent.com/mbostock/ad70335eeef6d167bc36fd3c04378048/raw/df541a01e850c6073ece4516fcd74ea1bae080ab/miserables.json"
force_network(url, plot_static = TRUE)