Как удалить диагональную проекцию, если нулевые значения появляются d3.js

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Java-скрипт Код:

 var diagonal = d3.svg.diagonal()
.projection(function(d) {
if(d.name != "null"){ return [d.y, d.x]; }
else{ return [d.x, d.y ]}
});

/* 
* All D3 visuals run in a frame with the following elements/variables:
*
* SVG element:
* - <svg xmlns="http://www.w3.org/2000/svg" class="chart" id="chart" >
*
* pbi object:
* - 'dsv' : function that retrieves the data via the provided callback: pbi.dsv(callback)
e.g. pbi.dsv(function(data) { //Process data function });
* - 'height' : height of the sandbox frame
* - 'width' : width of the sandbox frame
* - 'colors' : color array with 8 colors; changable via options
*
* Code is based on: https://bl.ocks.org/mbostock/4339083
*/

// ADD: translate function for the data
function toJSON(data) {
var flare = { name: "Position", children: [] },
levels = ["from_id","c1","c2","c3","c4","c5"];

// For each data row, loop through the expected levels traversing the output tree
data.forEach(function(d){
// Keep this as a reference to the current level
var depthCursor = flare.children;
// Go down one level at a time
levels.forEach(function( property, depth ){

// Look to see if a branch has already been created
var index;
depthCursor.forEach(function(child,i){
if ( d[property] == child.name ) index = i;
});
// Add a branch if it isn't there
if ( isNaN(index) ) {
depthCursor.push({ name : d[property], children : []});
index = depthCursor.length - 1;
}
// Now reference the new child array as we go deeper into the tree
depthCursor = depthCursor[index].children;
// This is a leaf, so add the last element to the specified branch
if ( depth === levels.length - 1 ) depthCursor.push({ name : d.product, size : d.revenue });
});
});
// End of conversion
return flare;
}

var margin = {top: 20, right: 120, bottom: 20, left: 120},
width = pbi.width - margin.left - margin.right, // ALTER: Changed fixed width with the 'pbi.width' variable
height = pbi.height - margin.top - margin.bottom; // ALTER: Changed fixed height with the 'pbi.height' variable

var i = 0,
duration = 750,
root;

var tree = d3.layout.tree()
.size([height, width]);

var diagonal = d3.svg.diagonal()
.projection(function(d) {
if(d.name != "null"){ return [d.y, d.x]; }
else{ return [d.x, d.y ]}
});

var svg = d3.select("#chart") // ALTER: Select SVG object; no need to create it
.attr("width", width + margin.left + margin.right) // ALTER: Add complete width
.attr("height", height + margin.top + margin.bottom) // ALTER: Add complete height
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");

// ALTER: Replaced the d3.json function with the pbi variant: pbi.dsv
pbi.dsv(function(data) {
var flare = toJSON(data); // ALTER: add extra convertion step to parent/child JSON
root = flare;
root.x0 = height / 2;
root.y0 = 0;

function collapse(d) {
if (d.children) {
d._children = d.children;
d._children.forEach(collapse);
d.children = null;
}
}
root.children.forEach(collapse);
update(root);
});

d3.select(self.frameElement).style("height", height + margin.top + margin.bottom);

function update(source) {

// Compute the new tree layout.
var nodes = tree.nodes(root).reverse(),
links = tree.links(nodes);

// Normalize for fixed-depth.
nodes.forEach(function(d) { d.y = d.depth * 180; });

// Update the nodes…
var node = svg.selectAll("g.node")
.data(nodes, function(d) { return d.id || (d.id = ++i); });

// Enter any new nodes at the parent previous position.
var nodeEnter = node.enter().append("g")
.attr("class", "node")
.attr("transform", function(d) { return "translate(" + source.y0 + "," + source.x0 + ")"; })
.attr("r", function(d) { return d == null ? 0 : 3; })
.on("click", click)
.on("mouseover", function(ds,index) {
var g = d3.select(this); // The node
d3.select(this).attr("r", 10)
// The class is used to remove the additional text later
var info = g.append('text')
.classed('info', true)
.attr('x', -20)
.attr('y', -15)
.style("fill", function(d) {
if( data[index].from_department == "engineering"){
return "green";
}
else if( data[index].from_department == "procurement"){
return "orange";
}
else if( data[index].from_department == "construction"){
return "red";
}
else { return "black";}
})
.text(function(d,i) {
return data[index].from_department + " to " + data[index].to_department;
});
})
.on("mouseout", function() {
// Remove the info text on mouse out.
d3.select(this).select('text.info').remove();
d3.select(this).attr("r", 6).style("fill", "black");
});

nodeEnter.append("circle")
.attr("r", 1e-6)
.style("fill", function(d) { return d._children ? pbi.colors[0] : pbi.colors[1]; })
.style("display", function(d){ return d.name == "null" ? "none" : "block"; })


nodeEnter.append("text")
.attr("x", function(d) { return d.children || d._children ? -10 : 10; })
.attr("dy", ".35em")
.attr("text-anchor", function(d) { return d.children || d._children ? "end" : "start"; })
.text(function(d) { return d.name; })
.style("display", function(d){ return d.name == "null" ? "none" : "block"; })
.style("fill-opacity", 1e-6);


// Transition nodes to their new position.
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function(d) { return "translate(" + d.y + "," + d.x + ")"; });

nodeUpdate.select("circle")
.attr("r", 4.5)
.style("fill", function(d) { return d._children ? pbi.colors[0] : pbi.colors[1]; })


nodeUpdate.select("text")
.style("fill-opacity", 1);

// Transition exiting nodes to the parent new position.
var nodeExit = node.exit().transition()
.duration(duration)
.attr("transform", function(d) { return "translate(" + source.y + "," + source.x + ")"; })
.remove();

nodeExit.select("circle")
.attr("r", 1e-6);

nodeExit.select("text")
.style("fill-opacity", 1e-6);

// Update the links…
var link = svg.selectAll("path.link")
.data(links, function(d) { return d.target.id; });

// Enter any new links at the parent previous position.
link.enter().insert("path", "g")
.attr("class", "link")
.attr("d", function(d) {
var o = {x: source.x0, y: source.y0};
return diagonal({source: o, target: o});
});

// Transition links to their new position.
link.transition()
.duration(duration)
.attr("d", diagonal);

// Transition exiting nodes to the parent new position.
link.exit().transition()
.duration(duration)
.attr("d", function(d) {
var o = {x: source.x, y: source.y};
return diagonal({source: o, target: o});
})
.remove();

// Stash the old positions for transition.
nodes.forEach(function(d) {
d.x0 = d.x;
d.y0 = d.y;
});
}

// Toggle children on click.
function click(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
}

Пожалуйста, предоставьте мне диагональные координаты для повторения одних и тех же значений. Я не хочу генерировать диагональную проекцию, если имя равно null, но это не сработает, пожалуйста, дайте мне знать, как это сделать.

Я попытался сделать из этого d3js удаление нулевых значений. Я использую инструмент d3.js в power bi dekstop

спросил(а) 2018-06-06T13:25:00+03:00 2 года, 1 месяц назад
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