I have long(ish) node labels for my Sankey diagram that I would like to rotate so that they can be read top-to-bottom instead of left-to-right. Ideally, I would be able to place these rotated node labels directly over the nodes (rather than the edges). Is there anything like the 'srt' option in base R plots?
You could add JavaScript to the HTMLWidgets to change certain text attributes/styles...
library(networkD3)
library(htmlwidgets)
links <- data.frame(
src = c(0, 0, 0, 1, 1, 1, 2, 2, 2),
target = c(3, 4, 5, 3, 4, 5, 3, 4, 5),
value = 1
)
nodes <- data.frame(name = paste0("node", 1:6))
sn <- sankeyNetwork(
Links = links,
Nodes = nodes,
Source = 'src',
Target = 'target',
Value = 'value',
NodeID = 'name',
fontSize = 16,
width = 600,
height = 300,
margin = list("left" = 100)
)
sn <- onRender(
sn,
'
function(el,x) {
d3.select(el)
.selectAll(".node text")
.attr("text-anchor", "middle")
.style("writing-mode", "vertical-rl")
.style("text-orientation", "upright");
}
'
)
sn
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