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gravity.html
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gravity.html
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<!DOCTYPE html>
<meta charset="utf-8">
<style>
svg {
display: block;
margin: 0 auto;
}
.svg-tooltip {
pointer-events: none;
}
.tooltip {
padding: 10px;
color: #4A22FF;
}
.lead {
color:#000;
font-weight: bold;
}
.favicon{
height:30px;
width:30px;
margin:0 10px 0 0;
padding:0 0 0 0;
float:left;
}
p {
margin: 5px 0px;
}
polygon {
pointer-events: none;
}
.links line {
stroke: #999;
stroke-opacity: 0.6;
}
.node circle {
stroke: #fff;
stroke-width: 1.5px;
}
.node circle text {
display: inline;
color:black;
font: 11px sans-serif;
}
.node circle:hover {
stroke: #000;
stroke-width:3px;
}
</style>
<svg width="1100" height="670">
<defs id="mdef">
<pattern id="image" x="0" y="0" height="40" width="40">
<image x="0" y="0" width="20" height="20" xlink:href="data/fav/apple.png"></image>
</pattern>
</defs>
</svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
let url = new URL(location.href);
let sp = new URLSearchParams(url.search);
var filename = sp.get('file');
var favicon = "data/fav/"+filename.split('.')[0]+".png";
var jsonFile = "data/"+filename;
var margin = {top: 20, right: 10, bottom: 20, left: 10};
// var width = 1100 - margin.left - margin.right;
// var height = 670 - margin.top - margin.bottom;
var foWidth = 300;
var foHeight = 200;
var anchor = {'w': width/3, 'h': height/3};
var t = 50, k = 15;
var tip = {'w': (3/4 * t), 'h': k};
var width = Math.max(document.documentElement.clientWidth- margin.left - margin.right, window.innerWidth- margin.left - margin.right || 0);
var height = Math.max(document.documentElement.clientHeight- margin.top - margin.bottom, window.innerHeight- margin.top - margin.bottom || 0);
var svg = d3.select("svg")
.attr("height",height)
.attr("width",width);
//
// width = +svg.attr("width"),
// height = +svg.attr("height");
var radius = 10;
var color = d3.scaleOrdinal(d3.schemeCategory20);
var gravFunctionX = function(node){return (1/(node.index+.11));};
var gravFunctionY = function(node){return (Math.log10(node.group+.1));};
var gravFunctionXRoot = function(node){if(node.index==0){return 1}else{return 0}};
var gravFunctionYRoot = function(node){if(node.index==0){return 1}else{return .5}};
var gravFunctionYPages = function(node){if(node.group==1){return node.index*.005}else{return .7}};
var gravFunctionXPages = function(node){if(node.group==1){return 1/(2*node.index+1)}else{return 0}};
var simulation = d3.forceSimulation()
.force("link", d3.forceLink().id(function(d) { return d.id; }))
// .force("collide", d3.forceCollide())
.force("charge", d3.forceManyBody().strength(function strength(){return -30;}))
.force("forceX", d3.forceX().strength(gravFunctionX)
.x(function(node){return 0})
)
.force("forceY", d3.forceY()
.strength(gravFunctionY)
.y(function(node){return 0})
)
.force("forceYPages", d3.forceY()
.strength(gravFunctionYPages)
.y(function(node){return height})
)
.force("forceXPages", d3.forceX()
.strength(gravFunctionXPages)
.x(function(node){return width})
)
// .force("gravFunctionXRoot", d3.forceX().strength(gravFunctionXRoot)
// .x(function(node){return width})
// )
// .force("gravFunctionYRoot", d3.forceY().strength(gravFunctionYRoot)
// .y(function(node){return height/2})
// )
.force("center", d3.forceCenter(width / 2, height / 2));
d3.json(jsonFile, function(error, graph) {
if (error) throw error;
var link = svg.append("g")
.attr("class","links")
.selectAll("line")
.data(graph.links)
.enter().append("line")
.attr("stroke-width", function(d) { return Math.sqrt(d.value); });
var node = svg.append("g")
.attr("class", "node").selectAll("g")
.data(graph.nodes).enter().append("g").append("circle")
// .attr("r", 5)
.attr("r", function(d){return 25/(Math.sqrt(d.group)+.5)})
.style("fill", function(d) { return color(d.group); })
.call(d3.drag()
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended));
var rootNode = svg.selectAll('g.node g circle')
.filter(function (d, i) { return i === 0;})
.style("fill","red")
.attr("cx",0)
.attr("cy",0)
.attr("fixed",true);
var rootNodeId = rootNode.data()[0].id;
// node.append("title")
// .text(function(d) { return d.id+"\n"+d.mt; });
node.on("mouseover", function(d){
if(d.x+foWidth>=width){
var tx = d.x-37-foWidth;
}else{
var tx = d.x-37;
}
if(d.y+foHeight>=height){
var ty = d.y+15-foHeight;
}else{
var ty = d.y+15;
}
var fo = svg.append("foreignObject")
.attr('x', tx)
.attr('y', ty)
.attr('width', 300)
.attr('height', 200)
.attr('class', 'svg-tooltip');
var div = fo.append('xhtml:div')
.append('div')
.attr('class', 'tooltip')
div.append('p')
.html(function(f){return "<img class='favicon' src='"+favicon+"'/>";});
div.append('p')
.attr('class','lead')
.html("content-type: <b>"+d.mt+"</b>")
.append('p')
.attr('class', 'lead')
.html("URL: <b>"+d.id+"</b>");
div.append('p')
.html(function(f){if(d.mt.indexOf('image')>=0){return "<img src='"+d.id+"'/>"}else{return "";}});
fo.attr({
'height': foHeight
});
svg.insert('polygon', '.svg-tooltip')
.attr('points',"0,0 0," + foHeight + " " + foWidth + "," + foHeight + " " + foWidth + ",0 " + (t) + ",0 " + tip.w + "," + (-tip.h) + " " + (t/2) + ",0")
.attr('height', foHeight + tip.h)
.attr('width', foWidth)
.attr('fill','#D8D8D8')
.attr('opacity', 0.75)
.attr('transform', "translate("+tx+","+ty+")")
})
.on('mouseout', function() {
svg.selectAll('.svg-tooltip').remove();
svg.selectAll('polygon').remove();
});
simulation.nodes(graph.nodes)
.on("tick", ticked);
simulation.force("link")
.links(graph.links)
.distance(function(link){if(link.source.id == rootNodeId){return 100}else{return 100/link.target.group;}})
.strength(function strength(link) {
// return 1 / link.target.group;
if(link.source.id == rootNodeId){return 1}else{return .5;}
// return .07;
// return 2;
}
);
simulation.alphaTarget(0).alphaDecay(0.6).velocityDecay(.7);
function ticked() {
link
.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node
// .attr("cx", function(d) { return d.x; })
// .attr("cy", function(d) { return d.y; });
.attr("cx", function(d) { return d.x = Math.max(radius, Math.min(width - radius, d.x)); })
.attr("cy", function(d) { return d.y = Math.max(radius, Math.min(height - radius, d.y)); });
}
});
function dragstarted(d) {
if (!d3.event.active) simulation.alphaTarget(0.1).restart();
d.fx = d.x;
d.fy = d.y;
}
function dragged(d) {
d.fx = d3.event.x;
d.fy = d3.event.y;
}
function dragended(d) {
if (!d3.event.active) simulation.alphaTarget(0);
d.fx = null;
d.fy = null;
}
</script>