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partsankey on rpart
Raw
.block
license: mit
height: 650
Raw
README.md

This is the derivative version of the partition sankey, but instead of collapsing leaves, this partsankey visualizes rpart or recursive partitioning. See post.

Replicate in R

library(htmltools)
library(rpart)
library(d3r)
library(vcdExtra)  # for the Titanic dataset used in first post

data("Titanicp", package="vcdExtra")

fit <- rpart(
  survived ~ pclass + sex + age,
  data = Titanicp
)

fit_json <- d3_party(fit)

scr <- tags$script(HTML(
sprintf(
"
  var titanic = %s

  var hier = d3.hierarchy(titanic)
  var width = 800;
  var height = 600;
  var nodeWidth = 10;
  var color = d3.scaleOrdinal(d3.schemeCategory10);
  // rearrange so that survived yes is green
  //  and no is red
  color.range(
    [color.range()[2]]
      .concat([color.range()[3]])
      .concat(color.range().splice(0,2))
      .concat(color.range().splice(4,10))
  )
  color.domain(['2', '1'])

  
  var svg = d3.select('#vis').append('svg')
    .style('width',width + 20 + 20)
    .style('height',height + 20 + 20)
    .append('g')
    .attr('transform','translate(20,20)');

  // n will represent sum at each split
  //  so don't use hier.sum
  //  instead add value attribute
  hier.each(function(d) {d.value = d.data.wt})

  // caution will mutate the object
  layout(hier, nodeWidth, 0.75)

  // note, this will not follow traditional d3 call form
  //  if we were to make this official change this to svg.call
  var nodes = drawNodes(hier, svg)

  var links = drawLinks(nodes, svg)

  // add mouseover that highlights with higher opacity
  //  this will highlight all children with same leaf name
  svg.selectAll('.link').on('mouseover', function(d) {
    d3.select(this).style('opacity', 0.8)
    if(d.target.linkPaths) {
      d.target.descendants().forEach(function(dd) {
        if(dd.linkPaths){
          dd.linkPaths.forEach(function(lp) {
            var data = d3.select(lp).datum();
            if(data.leaf == d.leaf) {
              d3.select(lp).style('opacity', 0.8)
            }
          })
        }
      })
    }
  })

  svg.selectAll('.link').on('mouseout', function(d) {
    svg.selectAll('.link').style('opacity', 0.5)
  })

  function layout(hier, nodeWidth, nodeHeightRatio) {
    nodeWidth = nodeWidth ? nodeWidth : 10;
    nodeHeightRatio = nodeHeightRatio ? nodeHeightRatio : 0.66;
    var nodeHeight = height * nodeHeightRatio;
    
    // run treemap slice to get heights
    //  note, this will overwrite the x0,x1,y0,y1
    d3.treemap()
      .size([nodeWidth, nodeHeight])
      .tile(d3.treemapSlice)(hier);

    // record treemap heights and widths
    //  since partition will overwrite
    hier.each(function(d) {
      d.h = d.y1 - d.y0;
      d.w = d.x1 - d.x0;
    })

    // now run partition with no size
    //  so will be in range [0,1]
    d3.partition()(hier);
  }

  function drawNodes(hier, svg) {
    var nodes = svg.selectAll('g.node')
      .data(hier.descendants());
    
    nodes = nodes.merge(
      nodes.enter().append('g')
        .attr('class','node')
    );
    
    nodes.attr('transform', function(d) {
      return 'translate(' + d.y0 * width  + ',' + d.x0 * height + ')'
    });
    
    nodes.append('rect')
      .classed('rect-part', true);
    
    nodes.append('text')
      //.style('text-anchor','end')
      .attr('dy','0.5em')
      .text(function(d) { return d.data.description});

    nodes.selectAll('rect.rect-part')
      .style('fill', 'gray')//function(d) {return color(d.data.name)})
      .style('stroke', 'white')
      //.transition()
      //.duration(duration)
      //.delay(delay)
      .attr('y', function(d) {
        return ((d.x1-d.x0)*height-d.h)/2;
      })
      .attr('width', function(d) { return nodeWidth; })
      .attr('height', function(d) {
        return d.h;
      });
      
  nodes.selectAll('text')
    .attr('y', function(d) {
      if(d.height > 0) {
      return ((d.x1-d.x0)*height-d.h)/2;
    }
      return (d.x1-d.x0)*height/2;
    })
    .attr('x', function(d) {
      if(d.height > 0) {
        return nodeWidth / 2
      }
      return nodeWidth
    })
    .attr('dy', function(d) {
      if(d.height > 0) {
        return '-0.15em'
      }
      return '0.25em'
    })
    .style('text-anchor', function(d) {
      if(d.height > 0) {
        return 'middle'
      }
      return 'start'
    })

  
      
    return nodes;    
  }

  function drawLinks(nodes, svg) {
    function stackSource(x) {
      var xobj = {}
      var sum = x.data.wt
      x.children.forEach(function(d) {
        // sum by response by using leaf data
        var leafdat = d.leaves().map(function(lf) {
          return lf.data.size.size[0]
        })
        var sizes = d3.zip(
          d3.merge(leafdat.map(function(d){return d.response})),
          d3.merge(leafdat.map(function(d){return d.freq}))
        )
        var sumsResponse = d3.nest()
          .key(function(d){return d[0]})
          .rollup(function(d){
            return d3.sum(d.map(function(dd){return dd[1]}))
          })
          .entries(sizes)
        sumsResponse.forEach(function(dd) {
          xobj[d.data.id + '~' + dd.key] = dd.value/sum;
        })
      })

      return d3.stack().keys(Object.keys(xobj))([xobj]);
    }

    function stackTarget(x) {
      // sum by response by using leaf data
      var leafdat = x.leaves().map(function(d) {
        return d.data.size.size[0]
      })
      var sizes = d3.zip(
        d3.merge(leafdat.map(function(d){return d.response})),
        d3.merge(leafdat.map(function(d){return d.freq}))
      )
      var sumsResponse = d3.nest()
        .key(function(d){return d[0]})
        .rollup(function(d){
          return d3.sum(d.map(function(dd){return dd[1]}))
        })
        .entries(sizes)
      var xobj = {};
      var sum = d3.sum(sumsResponse.map(function(d){
        return d.value
      }))
      sumsResponse.forEach(function(d) {
        xobj[d.key] = d.value/sum;
      })
      return d3.stack().keys(Object.keys(xobj))([xobj]);
    }

  
    nodes.each(function(node) {
      if(node.height == 0) {return}

      // empty array to store links on each node
      node.linkPaths = node.linkPaths ? node.linkPaths : [];
  
      function customLine(pts) {
        var ld = d3.linkHorizontal()
          .source(function(d){return d[0]})
          .target(function(d){return d[1]})
          .x(function(d){return d[0]})
          .y(function(d){return d[1]});
        return [
          ld([pts[0],pts[1]]),
          pts[1] + ',' + pts[2],
          ld([pts[2],pts[3]]).slice(1)
        ].join('L');
      }

      var st1 = stackSource(node);

      st1.forEach(function(d) {
        var childname = d.key.split('~')[0]
        var leafname = d.key.split('~')[1]

        var child = node.children.filter(function(ch) {
          return ch.data.id == childname
        })[0]

        var st = stackTarget(child).filter(function(d) {
          return d.key === leafname
        })[0];

        var link = svg.append('path')
          .classed('link', true)
          .style('opacity', 0.000001)

        link.datum({
          source: node,
          target: child,
          leaf: leafname
        })

        link.attr('d',customLine([
          [node.y0 * width + nodeWidth, ((node.x0 * height) + ((node.x1-node.x0)*height-node.h)/2 ) + d[0][0]*node.h],
          [child.y0 * width, ((child.x0 * height) + ((child.x1-child.x0)*height-child.h)/2 ) + st[0][0]*child.h],
          [child.y0 * width, ((child.x0 * height) + ((child.x1-child.x0)*height-child.h)/2 ) + st[0][1]*child.h],
          [node.y0 * width + nodeWidth, ((node.x0 * height) + ((node.x1-node.x0)*height-node.h)/2 ) + d[0][1]*node.h],
        ]));
        
        link
          .style('stroke', 'white')
          .style('fill', color(leafname));
        
        link
          .transition()
          //.duration(500)
          //.delay(duration+delay)
          .style('opacity', 0.5);
        
        node.linkPaths = node.linkPaths.concat(link.node());
      })
    })
  }
"
  ,
  fit_json
)
))

browsable(
  tagList(
    d3r::d3_dep_v4(offline=FALSE),
    tags$div(id = "vis"),
    scr
  )
)

forked from timelyportfolio's block: partsankey static

forked from timelyportfolio's block: partsankey interactive

forked from timelyportfolio's block: partsankey interactive angled

Raw
code.R
library(htmltools)
library(rpart)
library(d3r)
library(vcdExtra) # for the Titanic dataset used in first post
data("Titanicp", package="vcdExtra")
fit <- rpart(
survived ~ pclass + sex + age,
data = Titanicp
)
fit_json <- d3_party(fit)
scr <- tags$script(HTML(
sprintf(
"
var titanic = %s
var hier = d3.hierarchy(titanic)
var width = 800;
var height = 600;
var nodeWidth = 10;
var color = d3.scaleOrdinal(d3.schemeCategory10);
// rearrange so that survived yes is green
// and no is red
color.range(
[color.range()[2]]
.concat([color.range()[3]])
.concat(color.range().splice(0,2))
.concat(color.range().splice(4,10))
)
color.domain(['2', '1'])
var svg = d3.select('#vis').append('svg')
.style('width',width + 20 + 20)
.style('height',height + 20 + 20)
.append('g')
.attr('transform','translate(20,20)');
// n will represent sum at each split
// so don't use hier.sum
// instead add value attribute
hier.each(function(d) {d.value = d.data.wt})
// caution will mutate the object
layout(hier, nodeWidth, 0.75)
// note, this will not follow traditional d3 call form
// if we were to make this official change this to svg.call
var nodes = drawNodes(hier, svg)
var links = drawLinks(nodes, svg)
// add mouseover that highlights with higher opacity
// this will highlight all children with same leaf name
svg.selectAll('.link').on('mouseover', function(d) {
d3.select(this).style('opacity', 0.8)
if(d.target.linkPaths) {
d.target.descendants().forEach(function(dd) {
if(dd.linkPaths){
dd.linkPaths.forEach(function(lp) {
var data = d3.select(lp).datum();
if(data.leaf == d.leaf) {
d3.select(lp).style('opacity', 0.8)
}
})
}
})
}
})
svg.selectAll('.link').on('mouseout', function(d) {
svg.selectAll('.link').style('opacity', 0.5)
})
function layout(hier, nodeWidth, nodeHeightRatio) {
nodeWidth = nodeWidth ? nodeWidth : 10;
nodeHeightRatio = nodeHeightRatio ? nodeHeightRatio : 0.66;
var nodeHeight = height * nodeHeightRatio;
// run treemap slice to get heights
// note, this will overwrite the x0,x1,y0,y1
d3.treemap()
.size([nodeWidth, nodeHeight])
.tile(d3.treemapSlice)(hier);
// record treemap heights and widths
// since partition will overwrite
hier.each(function(d) {
d.h = d.y1 - d.y0;
d.w = d.x1 - d.x0;
})
// now run partition with no size
// so will be in range [0,1]
d3.partition()(hier);
}
function drawNodes(hier, svg) {
var nodes = svg.selectAll('g.node')
.data(hier.descendants());
nodes = nodes.merge(
nodes.enter().append('g')
.attr('class','node')
);
nodes.attr('transform', function(d) {
return 'translate(' + d.y0 * width + ',' + d.x0 * height + ')'
});
nodes.append('rect')
.classed('rect-part', true);
nodes.append('text')
//.style('text-anchor','end')
.attr('dy','0.5em')
.text(function(d) { return d.data.description});
nodes.selectAll('rect.rect-part')
.style('fill', 'gray')//function(d) {return color(d.data.name)})
.style('stroke', 'white')
//.transition()
//.duration(duration)
//.delay(delay)
.attr('y', function(d) {
return ((d.x1-d.x0)*height-d.h)/2;
})
.attr('width', function(d) { return nodeWidth; })
.attr('height', function(d) {
return d.h;
});
nodes.selectAll('text')
.attr('y', function(d) {
if(d.height > 0) {
return ((d.x1-d.x0)*height-d.h)/2;
}
return (d.x1-d.x0)*height/2;
})
.attr('x', function(d) {
if(d.height > 0) {
return nodeWidth / 2
}
return nodeWidth
})
.attr('dy', function(d) {
if(d.height > 0) {
return '-0.15em'
}
return '0.25em'
})
.style('text-anchor', function(d) {
if(d.height > 0) {
return 'middle'
}
return 'start'
})
return nodes;
}
function drawLinks(nodes, svg) {
function stackSource(x) {
var xobj = {}
var sum = x.data.wt
x.children.forEach(function(d) {
// sum by response by using leaf data
var leafdat = d.leaves().map(function(lf) {
return lf.data.size.size[0]
})
var sizes = d3.zip(
d3.merge(leafdat.map(function(d){return d.response})),
d3.merge(leafdat.map(function(d){return d.freq}))
)
var sumsResponse = d3.nest()
.key(function(d){return d[0]})
.rollup(function(d){
return d3.sum(d.map(function(dd){return dd[1]}))
})
.entries(sizes)
sumsResponse.forEach(function(dd) {
xobj[d.data.id + '~' + dd.key] = dd.value/sum;
})
})
return d3.stack().keys(Object.keys(xobj))([xobj]);
}
function stackTarget(x) {
// sum by response by using leaf data
var leafdat = x.leaves().map(function(d) {
return d.data.size.size[0]
})
var sizes = d3.zip(
d3.merge(leafdat.map(function(d){return d.response})),
d3.merge(leafdat.map(function(d){return d.freq}))
)
var sumsResponse = d3.nest()
.key(function(d){return d[0]})
.rollup(function(d){
return d3.sum(d.map(function(dd){return dd[1]}))
})
.entries(sizes)
var xobj = {};
var sum = d3.sum(sumsResponse.map(function(d){
return d.value
}))
sumsResponse.forEach(function(d) {
xobj[d.key] = d.value/sum;
})
return d3.stack().keys(Object.keys(xobj))([xobj]);
}
nodes.each(function(node) {
if(node.height == 0) {return}
// empty array to store links on each node
node.linkPaths = node.linkPaths ? node.linkPaths : [];
function customLine(pts) {
var ld = d3.linkHorizontal()
.source(function(d){return d[0]})
.target(function(d){return d[1]})
.x(function(d){return d[0]})
.y(function(d){return d[1]});
return [
ld([pts[0],pts[1]]),
pts[1] + ',' + pts[2],
ld([pts[2],pts[3]]).slice(1)
].join('L');
}
var st1 = stackSource(node);
st1.forEach(function(d) {
var childname = d.key.split('~')[0]
var leafname = d.key.split('~')[1]
var child = node.children.filter(function(ch) {
return ch.data.id == childname
})[0]
var st = stackTarget(child).filter(function(d) {
return d.key === leafname
})[0];
var link = svg.append('path')
.classed('link', true)
.style('opacity', 0.000001)
link.datum({
source: node,
target: child,
leaf: leafname
})
link.attr('d',customLine([
[node.y0 * width + nodeWidth, ((node.x0 * height) + ((node.x1-node.x0)*height-node.h)/2 ) + d[0][0]*node.h],
[child.y0 * width, ((child.x0 * height) + ((child.x1-child.x0)*height-child.h)/2 ) + st[0][0]*child.h],
[child.y0 * width, ((child.x0 * height) + ((child.x1-child.x0)*height-child.h)/2 ) + st[0][1]*child.h],
[node.y0 * width + nodeWidth, ((node.x0 * height) + ((node.x1-node.x0)*height-node.h)/2 ) + d[0][1]*node.h],
]));
link
.style('stroke', 'white')
.style('fill', color(leafname));
link
.transition()
//.duration(500)
//.delay(duration+delay)
.style('opacity', 0.5);
node.linkPaths = node.linkPaths.concat(link.node());
})
})
}
"
,
fit_json
)
))
browsable(
tagList(
d3r::d3_dep_v4(offline=FALSE),
tags$div(id = "vis"),
scr
)
)
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<script src="https://unpkg.com/d3@4.11.0/build/d3.min.js"></script>
</head>
<body style="background-color:white;">
<div id="vis"></div>
<script>
var titanic = {"id":1,"split":{"varid":3,"breaks":[],"index":[2,1],"right":true,"prob":[1,0],"info":[]},"children":[{"id":2,"split":{"varid":4,"breaks":9.5,"index":[2,1],"right":false,"prob":[1,0],"info":[]},"children":[{"id":3,"split":[],"surrogates":[],"info":[],"description":" age >= 9.5","rule":"sex %in% c(\"male\") & age >= 9.5","var":1,"n":800,"wt":800,"dev":136,"yval":1,"complexity":0,"ncompete":0,"nsurrogate":0,"yval2":[[1,664,136,0.83,0.17,0.6112]],"size":{"fitted":3,"size":[{"response":[1,2],"freq":[664,136]}]}},{"id":4,"split":{"varid":2,"breaks":[],"index":[2,2,1],"right":true,"prob":[1,0],"info":[]},"children":[{"id":5,"split":[],"surrogates":[],"info":[],"description":" pclass in 3rd","rule":"sex %in% c(\"male\") & age < 9.5 & pclass %in% c(\"3rd\")","var":1,"n":29,"wt":29,"dev":11,"yval":1,"complexity":0,"ncompete":0,"nsurrogate":0,"yval2":[[1,18,11,0.6207,0.3793,0.0222]],"size":{"fitted":5,"size":[{"response":[1,2],"freq":[18,11]}]}},{"id":6,"split":[],"surrogates":[],"info":[],"description":" pclass in 1st, 2nd","rule":"sex %in% c(\"male\") & age < 9.5 & pclass %in% c(\"1st\", \"2nd\")","var":1,"n":14,"wt":14,"dev":0,"yval":2,"complexity":0.01,"ncompete":0,"nsurrogate":0,"yval2":[[2,0,14,0,1,0.0107]],"size":{"fitted":6,"size":[{"response":[1,2],"freq":[0,14]}]}}],"surrogates":[],"info":[],"description":" age < 9.5","rule":"sex %in% c(\"male\") & age < 9.5","var":3,"n":43,"wt":43,"dev":18,"yval":2,"complexity":0.014,"ncompete":1,"nsurrogate":0,"yval2":[[2,18,25,0.4186,0.5814,0.0328]],"size":{"fitted":[],"size":[]}}],"surrogates":[],"info":[],"description":" sex in male","rule":"sex %in% c(\"male\")","var":2,"n":886,"wt":843,"dev":161,"yval":1,"complexity":0.014,"ncompete":1,"nsurrogate":0,"yval2":[[1,682,161,0.809,0.191,0.644]],"size":{"fitted":[],"size":[]}},{"id":7,"split":[],"surrogates":[],"info":[],"description":" sex in female","rule":"sex %in% 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+ sex + age","names":[],"info":{"method":"rpart"}},"description":" root","rule":"","var":4,"n":2195,"wt":1309,"dev":500,"yval":1,"complexity":0.424,"ncompete":2,"nsurrogate":0,"yval2":[[1,809,500,0.618,0.382,1]],"size":{"fitted":[],"size":[]}}
var hier = d3.hierarchy(titanic)
var width = 800;
var height = 600;
var nodeWidth = 10;
var color = d3.scaleOrdinal(d3.schemeCategory10);
// rearrange so that survived yes is green
// and no is red
color.range(
[color.range()[2]]
.concat([color.range()[3]])
.concat(color.range().splice(0,2))
.concat(color.range().splice(4,10))
)
color.domain(['2', '1'])
var svg = d3.select('#vis').append('svg')
.style('width',width + 20 + 20)
.style('height',height + 20 + 20)
.append('g')
.attr('transform','translate(20,20)');
// n will represent sum at each split
// so don't use hier.sum
// instead add value attribute
hier.each(function(d) {d.value = d.data.wt})
// caution will mutate the object
layout(hier, nodeWidth, 0.75)
// note, this will not follow traditional d3 call form
// if we were to make this official change this to svg.call
var nodes = drawNodes(hier, svg)
var links = drawLinks(nodes, svg)
// add mouseover that highlights with higher opacity
// this will highlight all children with same leaf name
svg.selectAll('.link').on('mouseover', function(d) {
d3.select(this).style('opacity', 0.8)
if(d.target.linkPaths) {
d.target.descendants().forEach(function(dd) {
if(dd.linkPaths){
dd.linkPaths.forEach(function(lp) {
var data = d3.select(lp).datum();
if(data.leaf == d.leaf) {
d3.select(lp).style('opacity', 0.8)
}
})
}
})
}
})
svg.selectAll('.link').on('mouseout', function(d) {
svg.selectAll('.link').style('opacity', 0.5)
})
function layout(hier, nodeWidth, nodeHeightRatio) {
nodeWidth = nodeWidth ? nodeWidth : 10;
nodeHeightRatio = nodeHeightRatio ? nodeHeightRatio : 0.66;
var nodeHeight = height * nodeHeightRatio;
// run treemap slice to get heights
// note, this will overwrite the x0,x1,y0,y1
d3.treemap()
.size([nodeWidth, nodeHeight])
.tile(d3.treemapSlice)(hier);
// record treemap heights and widths
// since partition will overwrite
hier.each(function(d) {
d.h = d.y1 - d.y0;
d.w = d.x1 - d.x0;
})
// now run partition with no size
// so will be in range [0,1]
d3.partition()(hier);
}
function drawNodes(hier, svg) {
var nodes = svg.selectAll('g.node')
.data(hier.descendants());
nodes = nodes.merge(
nodes.enter().append('g')
.attr('class','node')
);
nodes.attr('transform', function(d) {
return 'translate(' + d.y0 * width + ',' + d.x0 * height + ')'
});
nodes.append('rect')
.classed('rect-part', true);
nodes.append('text')
//.style('text-anchor','end')
.attr('dy','0.5em')
.text(function(d) { return d.data.description});
nodes.selectAll('rect.rect-part')
.style('fill', 'gray')//function(d) {return color(d.data.name)})
.style('stroke', 'white')
//.transition()
//.duration(duration)
//.delay(delay)
.attr('y', function(d) {
return ((d.x1-d.x0)*height-d.h)/2;
})
.attr('width', function(d) { return nodeWidth; })
.attr('height', function(d) {
return d.h;
});
nodes.selectAll('text')
.attr('y', function(d) {
if(d.height > 0) {
return ((d.x1-d.x0)*height-d.h)/2;
}
return (d.x1-d.x0)*height/2;
})
.attr('x', function(d) {
if(d.height > 0) {
return nodeWidth / 2
}
return nodeWidth
})
.attr('dy', function(d) {
if(d.height > 0) {
return '-0.15em'
}
return '0.25em'
})
.style('text-anchor', function(d) {
if(d.height > 0) {
return 'middle'
}
return 'start'
})
return nodes;
}
function drawLinks(nodes, svg) {
function stackSource(x) {
var xobj = {}
var sum = x.data.wt
x.children.forEach(function(d) {
// sum by response by using leaf data
var leafdat = d.leaves().map(function(lf) {
return lf.data.size.size[0]
})
var sizes = d3.zip(
d3.merge(leafdat.map(function(d){return d.response})),
d3.merge(leafdat.map(function(d){return d.freq}))
)
var sumsResponse = d3.nest()
.key(function(d){return d[0]})
.rollup(function(d){
return d3.sum(d.map(function(dd){return dd[1]}))
})
.entries(sizes)
sumsResponse.forEach(function(dd) {
xobj[d.data.id + '~' + dd.key] = dd.value/sum;
})
})
return d3.stack().keys(Object.keys(xobj))([xobj]);
}
function stackTarget(x) {
// sum by response by using leaf data
var leafdat = x.leaves().map(function(d) {
return d.data.size.size[0]
})
var sizes = d3.zip(
d3.merge(leafdat.map(function(d){return d.response})),
d3.merge(leafdat.map(function(d){return d.freq}))
)
var sumsResponse = d3.nest()
.key(function(d){return d[0]})
.rollup(function(d){
return d3.sum(d.map(function(dd){return dd[1]}))
})
.entries(sizes)
var xobj = {};
var sum = d3.sum(sumsResponse.map(function(d){
return d.value
}))
sumsResponse.forEach(function(d) {
xobj[d.key] = d.value/sum;
})
return d3.stack().keys(Object.keys(xobj))([xobj]);
}
nodes.each(function(node) {
if(node.height == 0) {return}
// empty array to store links on each node
node.linkPaths = node.linkPaths ? node.linkPaths : [];
function customLine(pts) {
var ld = d3.linkHorizontal()
.source(function(d){return d[0]})
.target(function(d){return d[1]})
.x(function(d){return d[0]})
.y(function(d){return d[1]});
return [
ld([pts[0],pts[1]]),
pts[1] + ',' + pts[2],
ld([pts[2],pts[3]]).slice(1)
].join('L');
}
var st1 = stackSource(node);
st1.forEach(function(d) {
var childname = d.key.split('~')[0]
var leafname = d.key.split('~')[1]
var child = node.children.filter(function(ch) {
return ch.data.id == childname
})[0]
var st = stackTarget(child).filter(function(d) {
return d.key === leafname
})[0];
var link = svg.append('path')
.classed('link', true)
.style('opacity', 0.000001)
link.datum({
source: node,
target: child,
leaf: leafname
})
link.attr('d',customLine([
[node.y0 * width + nodeWidth, ((node.x0 * height) + ((node.x1-node.x0)*height-node.h)/2 ) + d[0][0]*node.h],
[child.y0 * width, ((child.x0 * height) + ((child.x1-child.x0)*height-child.h)/2 ) + st[0][0]*child.h],
[child.y0 * width, ((child.x0 * height) + ((child.x1-child.x0)*height-child.h)/2 ) + st[0][1]*child.h],
[node.y0 * width + nodeWidth, ((node.x0 * height) + ((node.x1-node.x0)*height-node.h)/2 ) + d[0][1]*node.h],
]));
link
.style('stroke', 'white')
.style('fill', color(leafname));
link
.transition()
//.duration(500)
//.delay(duration+delay)
.style('opacity', 0.5);
node.linkPaths = node.linkPaths.concat(link.node());
})
})
}
</script>
</body>
</html>
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