尽管我对这种交互性并不着迷,但我认为这将是一个展示如何使用htmltools
with的好机会htmlwidgets
。稍后,我将使用 重新创建crosstalk
,但现在,我将复制提供的示例。
直接复制
library(htmltools)
library(networkD3)
data(MisLinks)
data(MisNodes)
# make a forceNetwork as shown in ?forceNetwork
fn <- forceNetwork(
Links = MisLinks, Nodes = MisNodes, Source = "source",
Target = "target", Value = "value", NodeID = "name",
Group = "group", opacity = 0.4, zoom = TRUE
)
fn <- htmlwidgets::onRender(
fn,
'
function(el,x){
debugger;
var optArray = [];
for (var i = 0; i < x.nodes.name.length - 1; i++) {
optArray.push(x.nodes.name[i]);
}
optArray = optArray.sort();
$(function () {
$("#search").autocomplete({
source: optArray
});
});
d3.select(".ui-widget button").node().onclick=searchNode;
function searchNode() {
debugger;
//find the node
var selectedVal = document.getElementById("search").value;
var svg = d3.select(el).select("svg");
var node = d3.select(el).selectAll(".node");
if (selectedVal == "none") {
node.style("stroke", "white").style("stroke-width", "1");
} else {
var selected = node.filter(function (d, i) {
return d.name != selectedVal;
});
selected.style("opacity", "0");
var link = svg.selectAll(".link")
link.style("opacity", "0");
d3.selectAll(".node, .link").transition()
.duration(5000)
.style("opacity", 1);
}
}
}
'
)
browsable(
attachDependencies(
tagList(
tags$head(
tags$link(
href="http://code.jquery.com/ui/1.11.0/themes/smoothness/jquery-ui.css",
rel="stylesheet"
)
),
HTML(
'
<div class="ui-widget">
<input id="search">
<button type="button">Search</button>
</div>
'
),
fn
),
list(
rmarkdown::html_dependency_jquery(),
rmarkdown::html_dependency_jqueryui()
)
)
)
串音版
注意:串扰是实验性的,所以这可能会改变
我没有花时间优化和完善,但这里有一个版本,它与示例做同样的事情,但使用crosstalk
而不是自定义代码和jquery-ui
自动完成。
library(htmltools)
library(networkD3)
# demonstrate with experimental crosstalk
# this will get much easier once we start converting
# htmlwidgets to work natively with crosstalk
#devtoools::install_github("rstudio/crosstalk")
library(crosstalk)
data(MisLinks)
data(MisNodes)
# make a forceNetwork as shown in ?forceNetwork
fn <- forceNetwork(
Links = MisLinks, Nodes = MisNodes, Source = "source",
Target = "target", Value = "value", NodeID = "name",
Group = "group", opacity = 0.4, zoom = TRUE
)
sd <- SharedData$new(MisNodes, key=~name, group="grp1" )
# no autocomplete so not the same
# but will use this instead of writing something new
fs <- filter_select(
id = "filter-node",
label = "Search Nodes",
sharedData = sd,
group = ~name
)
fn <- htmlwidgets::onRender(
fn,
'
function(el,x){
// get the crosstalk group
// we used grp1 in the SharedData from R
var ct_grp = crosstalk.group("grp1");
debugger;
ct_grp
.var("filter")
.on("change", function(val){searchNode(val.value)});
function searchNode(filter_nodes) {
debugger;
//find the node
var selectedVal = filter_nodes? filter_nodes : [];
var svg = d3.select(el).select("svg");
var node = d3.select(el).selectAll(".node");
if (selectedVal.length===0) {
node.style("opacity", "1");
svg.selectAll(".link").style("opacity","1");
} else {
var selected = node.filter(function (d, i) {
return selectedVal.indexOf(d.name) >= 0;
});
node.style("opacity","0");
selected.style("opacity", "1");
var link = svg.selectAll(".link").style("opacity", "0");
/*
svg.selectAll(".node, .link").transition()
.duration(5000)
.style("opacity", 1);
*/
}
}
}
'
)
browsable(
tagList(
fs,
fn
)
)