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Sankey highlight entire link path #156

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Sankey highlight entire link path #156

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6e1c24e
Highlight entire link path
nredell Oct 14, 2016
5fd07f1
Highlight entire link path on mouseover
nredell Oct 15, 2016
a5dd4fd
Fixed typos on link highlight on mouseover
nredell Oct 15, 2016
2c4e88e
Remove LinkName from tooltip when no R argument
nredell Oct 15, 2016
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9 changes: 7 additions & 2 deletions R/sankeyNetwork.R
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Original file line number Diff line number Diff line change
Expand Up @@ -73,8 +73,8 @@
#' @export

sankeyNetwork <- function(Links, Nodes, Source, Target, Value,
NodeID, NodeGroup = NodeID, LinkGroup = NULL, units = "",
colourScale = JS("d3.scale.category20()"), fontSize = 7,
NodeID, NodeGroup = NodeID, LinkGroup = NULL, LinkName = NULL,
units = "", colourScale = JS("d3.scale.category20()"), fontSize = 7,
fontFamily = NULL, nodeWidth = 15, nodePadding = 10, margin = NULL,
height = NULL, width = NULL, iterations = 32, sinksRight = TRUE)
{
Expand Down Expand Up @@ -125,6 +125,11 @@ sankeyNetwork <- function(Links, Nodes, Source, Target, Value,
if (is.character(LinkGroup)) {
LinksDF$group <- Links[, LinkGroup]
}

# specify an optional name for an individual link
if (is.character(LinkName)) {
LinksDF$linkName <- Links[, LinkName]
}

margin <- margin_handler(margin)

Expand Down
24 changes: 22 additions & 2 deletions inst/htmlwidgets/sankeyNetwork.js
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Original file line number Diff line number Diff line change
Expand Up @@ -131,13 +131,26 @@ HTMLWidgets.widget({
.style("stroke", color_link)
.style("stroke-opacity", opacity_link)
.sort(function(a, b) { return b.dy - a.dy; })
.attr("link-name", function(d){
return d.linkName;
})
.on("mouseover", function(d) {
if (d.linkName) {
d3.selectAll("[link-name=" + d.linkName + "]")
.style("stroke-opacity", function(d){return opacity_link(d) + 0.3});
} else {
d3.select(this)
.style("stroke-opacity", function(d){return opacity_link(d) + 0.3});
}
})
.on("mouseout", function(d) {
if (d.linkName) {
d3.selectAll("[link-name=" + d.linkName + "]")
.style("stroke-opacity", opacity_link);
} else {
d3.select(this)
.style("stroke-opacity", opacity_link);
}
});

// add backwards class to cycles
Expand Down Expand Up @@ -169,8 +182,15 @@ HTMLWidgets.widget({
});
// note: u2192 is right-arrow
link.append("title")
.text(function(d) { return d.source.name + " \u2192 " + d.target.name +
"\n" + format(d.value) + " " + options.units; });
.text(function(d) {
if (d.linkName) {
return d.source.name + " \u2192 " + d.target.name +
"\n" + format(d.value) + " " + options.units + " (" + d.linkName + ")";
} else {
return d.source.name + " \u2192 " + d.target.name +
"\n" + format(d.value) + " " + options.units;
}
});

node.append("rect")
.attr("height", function(d) { return d.dy; })
Expand Down