function Carte(parametres, articles, links) {
var object = this;
this.parametres = {
isPositions: false,
width: 1440,
height: 800,
top: 50,
left: -240,
boxID: "box",
selectorID: "carto",
canvasID: "canvas",
info: "infos",
couleurs: null,
relations: null,
charge: -30,
gravity: .13,
theta: 3,
nodeSizeInterval: [3, 15],
nodeGrowth: "linear", //value "linear", "log", or "exp"
layerStyle: {
opacity: 0.6
},
handle_len_rate: 2.2,
maxDistance: 35,
scaleInterval: [0.5, 10],
activerZoom: true,
infobulleHtml: function(node) {
return node.titre + "<p>cluster: " + node.group +"</p>";
},
infoDisplay: "hover", //valeur "hover" ou "click"
occlusionMgmt: false,
nodeHighlight: "darken", //valeur "darken" ou "grow"
zoomNode: true,
logZoomNode: true,
logZoomNodeParameter: 2,
selection: true,
clustering: false
};
this.beginDate = new Date();
this.etendre(parametres);
//création du contenant sur la page, si inexistant
if (null == (document.getElementById(this.parametres.boxID))) {
d3.select('.content').append('div')
.attr("id", this.parametres.boxID)
.classed("gallery", true)
.style("position", "absolute")
.style("border", "1 px dashed");
}
d3.select('#' + this.parametres.boxID)
.style("width", this.parametres.width)
.style("height", this.parametres.height)
.style("position", "absolute")
.style("top", this.parametres.top)
.style("left", this.parametres.left)
.style("overflow", "hidden")
.style('z-index', 0);
if (null == (document.getElementById(this.parametres.selectorID))) {
d3.select('.gallery').append('div')
.attr("id", this.parametres.selectorID);
}
d3.select('#' + this.parametres.selectorID)
.attr("width", this.parametres.width)
.attr("height", this.parametres.height)
.style("position", "absolute")
.style('z-index', 2);
this.drag = d3.behavior.drag()
.on("dragstart", function(d, i) {object.dragstart(d, i, object);})
.on("drag", object.dragmove)
.on("dragend", function(d, i) {object.dragend(d, i, object);});
this.static = false;
this.nodeMouseover = function(d) {
if (object.parametres.nodeHighlight == "darken") {
object.colorBrighten(d3.select(this));
}
else if (object.parametres.nodeHighlight == "grow") {
scale = object.getScale(object.rect);
object.grow(this, scale);
}
if (object.parametres.infoDisplay == "hover") {
object.highlight(d);
}
};
this.nodeMouseout = function(d) {
if (object.parametres.nodeHighlight == "darken") {
object.colorDarken(d3.select(this));
}
else if (object.parametres.nodeHighlight == "grow") {
scale = object.getScale(object.rect);
object.shrink(object.radius(d.scaledPoids), this);
}
if (object.parametres.infoDisplay == "hover") {
object.blur();
}
};
this.nodeClick = function(d) {
if (object.parametres.infoDisplay == "click") {
object.highlight(d);
}
if (object.parametres.occlusionMgmt) {
object.replaceAll();
object.noOcclusions(d, d3.select(this));
}
object.displayInfos(d, d3.select(this));
}
if (this.parametres.infoDisplay == "click") {
this.infoClick = function(d) {
object.blur();
};
}
//création de l'infobulle, si inexistante
if (null == (this.infoBulle = d3.select('#' + this.parametres.info)[0][0])) {
this.infoBulle = d3.select('#' + this.parametres.selectorID).append('div')
.attr("id", this.parametres.info)
.style("top", this.parametres.height)
.style("opacity", 0)
.style("z-index", 1);
}
this.infoBulle.on("click", this.infoClick);
//création du canvas sur la page, si inexistant
if (null == (this.canvas = document.getElementById(this.parametres.canvasID))) {
d3.select('.gallery').insert('canvas', '#' + this.parametres.selectorID)
.attr("id", this.parametres.canvasID)
.attr("resize", false);
this.canvas = document.getElementById(this.parametres.canvasID);
}
d3.select('#' + this.parametres.canvasID)
.attr("width", d3.select('#' + this.parametres.selectorID).attr("width"))
.attr("height", d3.select('#' + this.parametres.selectorID).attr("height"))
.style("position", "absolute")
.style("z-index", 1);
//initialisation du drag'n'drop
object.mouse = {};
object.isDown = false;
object.drag2 = false;
this.svg = d3.select('#' + this.parametres.selectorID).append('svg')
.attr("width", this.parametres.width)
.attr("height", this.parametres.height)
.on("mousedown", function() {object.mouseDown(event);})
.on("mousemove", function() {object.mouseMove(event);})
.on("mouseup", function() {object.mouseUp(event);});
paper.setup(this.canvas);
paper.view.viewSize = new paper.Size(object.parametres.width, object.parametres.height);
this.clusters = articles.clusters;
//génération d'une palette de couleurs
if (null == this.parametres.couleurs) {
this.parametres.couleurs = this.selectColors(this.clusters.length);
}
//initialisation du panneau d'informations latéral
this.lateral = d3.select("#infosLaterales");
this.lateral.select("button.close").on("click", function() {object.hideLateral();});
//initialisation du panneau de sélection de clusters
if (this.parametres.selection) {
this.choice = d3.select("#choixLateral");
this.choice.left = this.parametres.width + 50;
d3.select("h1 button.select").on("click", function() {object.displayChoice();});
this.fillChoices();
this.choice.select("button.spread").on("click", function() {object.spread();});
}
else {
d3.select("h1 button.select").style("opacity", 0);
}
console.log("Environnement OK.");
this.data = {};
this.zones = [];
//affichage des points pré-calculés
if (this.parametres.isPositions) {
this.data.nodes = this.generateNodes(articles, this.parametres.isPositions);
this.length = articles.nbItems;
this.display(true);
}
//initialisation du Force Directed Graph
else {
this.data.nodes = this.generateNodes(articles, this.parametres.isPositions);
this.data.links = this.generateLinks(links, this.data.nodes);
this.force = d3.layout.force()
.charge(this.parametres.charge) //-20
.nodes(this.data.nodes)
.links(this.data.links)
.linkDistance(function(link) {return link.linkDistance;}) //20
.linkStrength(function(link) {return link.linkStrength;})
.size([this.parametres.width, this.parametres.height])
.gravity(this.parametres.gravity) //.1
.theta(this.parametres.theta)
.start();
console.log("Graphe en cours de stabilisation . . .");
this.force.on("tick", function() {
console.log("Stabilisation OK.");
object.display(true);
});
}
};
Carte.prototype = {
//gestion des paramètres
etendre: function(parametres) {
if (null==parametres || "object"!=typeof(parametres)) {
return;
}
for (var cle in parametres) {
this.parametres[cle] = parametres[cle];
}
},
display: function (init) {
if (this.parametres.clustering) {
this.clusterData = this.clusterize(this.data.nodes, this.clusters.length);
this.showNodes(this.clusterData);
}
else {
this.showNodes(this.data.nodes);
}
if (this.parametres.activerZoom && init) {
this.activateZoom();
}
paper.setup(this.canvas);
paper.view.viewSize = new paper.Size(this.parametres.width, this.parametres.height);
this.createBackground();
},
clusterize: function(data, nb) {
clusterd = [];
for (var i = 0 ; i<nb; ++i) {
clusterd.push({group: i, titre: "Cluster numéro " + i, poids: 0, x:0, y:0, count: 0, type: "cluster"});
}
for (var i = 0; i < data.length; i++) {
if (clusterd[data[i].group]) {
clusterd[data[i].group]["poids"] += parseFloat(data[i].poids);
clusterd[data[i].group]["x"] += parseFloat(data[i].x);
clusterd[data[i].group]["y"] += parseFloat(data[i].y);
clusterd[data[i].group]["count"] += 1;
}
}
for (var i = 0 ; i<nb; ++i) {
if (clusterd[i]["count"]) {
clusterd[i]["poids"] = clusterd[i]["poids"]/10;
clusterd[i]["scaledPoids"] = clusterd[i]["poids"];
clusterd[i]["x"] /= parseFloat(clusterd[i]["count"]);
clusterd[i]["y"] /= parseFloat(clusterd[i]["count"]);
}
}
return clusterd;
},
activateZoom: function() {
this.rect = this.svg.selectAll("rect")
.data([{
x: this.parametres.width*(1 - this.parametres.scaleInterval[0])/(this.parametres.scaleInterval[1] - this.parametres.scaleInterval[0]),
y: 0
}])
.enter().append("rect")
.attr("x", function(d) { return d.x; })
.attr("y", function(d) { return d.y; })
.attr("width", 15)
.attr("height", 15)
.style("stroke", "black")
.style("fill", "#00f")
.style("z-index", 2)
.call(this.drag);
},
//génération d'une palette de couleurs
selectColors: function(nbClusters) {
var colors = colorbrewer;
var sets = ["BrBG", "PiYG", "PRGn", "PuOr", "RdBu", "RdYlBu", "RdYlGn"];
var selectorID, finalColors = [];
while (finalColors.length < nbClusters) {
selectorID = Math.floor(Math.random()*7);
selectorID2 = Math.floor(Math.random()*11);
color = new paper.RgbColor(colors[sets[selectorID]][11][selectorID2]);
var available = true;
for (var i = 0; i < finalColors.length; i++) {
if (Math.floor(finalColors[i].hue) == Math.floor(color.hue)) {
available = false;
}
}
if (color.brightness < 0.9 && available) {
finalColors.push(color.toCssString());
}
}
return finalColors;
},
//génération des noeuds à partir du json
generateNodes: function(items, isPos) {
var nodes = [];
var poidsMin = 100000, poidsMax = 0;
// on crée les noeuds
for (var i = 0 ; i<items.nbItems; ++i) {
nodes.push({index: i, titre: "Titre numero " + i, type: "article"});
}
// on donne à chaque noeud son poids et couleurs
// on traite identiquement core et agregated
// pour les clusters
var nbClusters = items.clusters.length;
for (var i =0; i< nbClusters; ++i) {
var cluster = items.clusters[i],
clusterId = cluster.id,
groups = [];
if (cluster.items) {
groups.push("items");
}
else {
groups.push("core");
groups.push("agregated");
}
for (var a in groups) {
var group = cluster[groups[a]];
for (var j =0; j<group.length; ++j) {
var item = group[j], poids = parseFloat(item.value);
nodes[item.key]["poids"] = poids;
nodes[item.key]["scaledPoids"] = poids;
nodes[item.key]["group"] = clusterId;
nodes[item.key]["key"] = item.key;
var core;
nodes[item.key]["core"] = (groups[a] == "core");
if (isPos) {
nodes[item.key]["x"] = parseFloat(item.x);
nodes[item.key]["y"] = parseFloat(item.y);
}
else {
nodes[item.key]["x"] = this.parametres.width/2*(1 + Math.cos(i*Math.Pi/nbClusters));
nodes[item.key]["y"] = this.parametres.height/2*(1 + Math.sin(i*Math.Pi/nbClusters));
}
if (null != this.parametres.relations) {
this.parametres.relations.add(this.parametres.selectorID + ".node." + item.key, nodes[item.key]);
}
if (poids>poidsMax) {
poidsMax = poids;
}
else if (poids<poidsMin) {
poidsMin = poids;
}
}
}
}
this.poidsMin = poidsMin;
this.poidsMax = poidsMax;
// pour les unclustered
var unclusteredId = items.clusters.length;
var unclusteredItems = (items.unclustered.items)?
items.unclustered.items: items.unclustered;
for (var i =0; i< unclusteredItems.length; ++i) {
var item = unclusteredItems[i];
nodes[item.key]["poids"] = poidsMin;
nodes[item.key]["scaledPoids"] = poids;
nodes[item.key]["group"] = unclusteredId;
nodes[item.key]["key"] = item.key;
nodes[item.key]["type"] = "article";
if (isPos) {
nodes[item.key]["x"] = parseFloat(item.x);
nodes[item.key]["y"] = parseFloat(item.y);
}
else {
nodes[item.key]["x"] = this.parametres.width/2;
nodes[item.key]["y"] = this.parametres.height/2;
}
}
console.log("Data articles extraites.");
return nodes;
},
//génération des liens à partir du json
generateLinks: function(liens, nodes) {
//var linkMax = 0, linkMin = 500;
var links = [];
for (var i = 0; i< liens.images.length; ++i) {
var item = liens.images[i];
for (var j = 0; j < 20 && j < item.v.length; ++j) {
var voisin = item.v[j];
var linkDistance = 200/Math.max(voisin.d, 4), linkStrength;
if (nodes[item.id]["group"] == nodes[voisin.id]["group"]) {
linkStrength = 1;
linkDistance *= 0.5;
}
else {
linkStrength = 0.5;
}
links.push({source: item.id, target: voisin.id, value: voisin.d, linkDistance: linkDistance, linkStrength: linkStrength});
}
}
console.log("Data liens extraites.");
return links;
},
//calcul du rayon
radius: function(poids) {
var diff = this.parametres.nodeSizeInterval[1] - this.parametres.nodeSizeInterval[0];
var scale = this.getScale(this.rect);
if (this.parametres.nodeGrowth == "log") {
return this.parametres.nodeSizeInterval[0] + Math.log(poids/(this.poidsMin*scale))*diff/Math.log(this.poidsMax/this.poidsMin);
}
else if (this.parametres.nodeGrowth == "exp") {
return this.parametres.nodeSizeInterval[0]*Math.exp(Math.log(this.parametres.nodeSizeInterval[1]/this.parametres.nodeSizeInterval[0])*(poids-(this.poidsMin*scale))/(scale*(this.poidsMax - this.poidsMin)));
}
else if (this.parametres.nodeGrowth == "linear"){
return scale*((this.parametres.nodeSizeInterval[0] + diff*(poids - scale*this.poidsMin)/(scale*(this.poidsMax - this.poidsMin))));
}
else {
alert("Wrong nodeGrowth argument!");
}
},
//affichages des noeuds
showNodes: function(data) {
var object = this;
var node = this.svg.selectAll("circle.node")
.data(data)
.enter().append("circle")
.attr("class", "node")
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; })
.attr("z-index", 0)
.attr("r", function(d) {return object.radius(d.poids);})
.style("fill", function(d) { return object.parametres.couleurs[d.group]; })
.on("mouseover", this.nodeMouseover)
.on("mouseout", this.nodeMouseout);
node.append("p")
.text(function(d) { return d.titre; });
node.on('click', this.nodeClick);
console.log("Noeuds OK.");
},
//génération du fond de la carte
createBackground: function() {
var circlePaths = {};
scale = this.getScale(this.rect);
object = this;
this.svg.selectAll('circle.node').each(function(d) {
if (d.type != "cluster") {
var node = d3.select(this);
var circle = new paper.Path.Circle(
new paper.Point(d.x, d.y), object.radius(d.scaledPoids)*2);
circle.fillColor = node.style("fill");
circlePaths[d.key] = circle;
}
});
console.log("Fond des noeuds OK.");
this.generateConnections(circlePaths);
paper.view.draw();
/*var endDate = new Date();
var timer = endDate.getTime() - beginDate.getTime();
console.log(timer);*/
},
//generate background connections between nodes of a same cluster
generateConnections: function(paths) {
for (var c=0; c<this.clusters.length; ++c) {
var cluster = this.clusters[c];
// définir les données suivant le type passé
var group = cluster.items;
if (undefined==group) {
group = cluster.core.concat(cluster.agregated);
}
var layer = new paper.Layer();
// Donner un design au fond
for (var attr in this.parametres.layerStyle) {
if (layer[attr]) {
layer[attr] = this.parametres.layerStyle[attr];
}
else {
layer.style[attr] = this.parametres.layerStyle[attr];
}
}
var maxDistance = this.scale(this.rect[0][0].getAttribute("x"))*this.parametres.maxDistance,
handle = this.parametres.handle_len_rate;
for (var i = 1; i<group.length; ++i) {
if (paths[group[i].key]) {
var circle = paths[group[i].key];
if ((circle.position.x + maxDistance > 0) && (circle.position.x < this.parametres.width + maxDistance) && (circle.position.y + maxDistance > 0) && (circle.position.y < this.parametres.height + maxDistance)) {
layer.appendTop(circle);
for (var j = 0; j<i; ++j) {
var path = this.connect(circle, paths[group[j].key], 0.5, handle, maxDistance);
if (null!=path) {
layer.appendTop(path);
}
}
}
}
}
this.zones[c] = layer;
if (null != this.parametres.relations) {
this.parametres.relations.add(this.parametres.selectorID + ".layer." + c, layer);
}
}
paper.project.layers[0].remove();
console.log("Connexions OK.");
},
/*
* Create a connection between two balls
*/
connect: function(ball1, ball2, v, handle_len_rate, maxDistance) {
var center1 = ball1.position;
var center2 = ball2.position;
var radius1 = ball1.bounds.width / 2;
var radius2 = ball2.bounds.width / 2;
var pi2 = Math.PI / 2;
var d = center1.getDistance(center2);
var u1, u2;
if (radius1 == 0 || radius2 == 0) {
return null;
}
if (d > maxDistance || d <= Math.abs(radius1 - radius2)) {
return;
} else if (d < radius1 + radius2) { // case circles are overlapping
return null;
} else {
u1 = 0;
u2 = 0;
}
var center3 = center2.clone();
center3.x = center2.x - center1.x;
center3.y = center2.y - center1.y;
var angle1 = center3.getAngleInRadians();
var angle2 = Math.acos((radius1 - radius2) / d);
var angle1a = angle1 + u1 + (angle2 - u1) * v;
var angle1b = angle1 - u1 - (angle2 - u1) * v;
var angle2a = angle1 + Math.PI - u2 - (Math.PI - u2 - angle2) * v;
var angle2b = angle1 - Math.PI + u2 + (Math.PI - u2 - angle2) * v;
var p1a = center1.add(this.getVector(angle1a, radius1));
var p1b = center1.add(this.getVector(angle1b, radius1));
var p2a = center2.add(this.getVector(angle2a, radius2));
var p2b = center2.add(this.getVector(angle2b, radius2));
// define handle length by the distance between
// both ends of the curve to draw
var totalRadius = (radius1 + radius2);
var p3a = p2a.clone();
p3a.x = p1a.x - p2a.x;
p3a.y = p1a.y - p2a.y;
var d2 = Math.min(v * handle_len_rate, p3a.length / totalRadius);
// case circles are overlapping:
d2 *= Math.min(1, d * 2 / (radius1 + radius2));
radius1 *= d2;
radius2 *= d2;
var path = new paper.Path([p1a, p2a, p2b, p1b]);
path.style = ball1.style;
path.closed = true;
var segments = path.segments;
segments[0].handleOut = this.getVector(angle1a - pi2, radius1);
segments[1].handleIn = this.getVector(angle2a + pi2, radius2);
segments[2].handleOut = this.getVector(angle2b - pi2, radius2);
segments[3].handleIn = this.getVector(angle1b + pi2, radius1);
return path;
},
// ------------------------------------------------
getVector: function(radians, length) {
var angle = radians * 180 / Math.PI;
return new paper.Point({"angle": angle,
"length": length
});
},
//apparition de l'infoBulle
highlight: function(node) {
scale = this.parametres.activerZoom ? this.scale(this.rect[0][0].getAttribute("x")) : 1;
this.infoBulle.html(this.parametres.infobulleHtml(node));
if (this.infoBulle.classed("selected")) {
this.infoBulle.transition()
.duration(500)
.style("left", node.x + 10 + "px")
.style("top", node.y + 10 + "px");
}
else {
this.infoBulle.classed("selected", true)
.style("left", node.x +10 + "px")
.style("top", node.y +10 + "px")
.transition()
.duration(300)
.style("opacity", 0.5);
}
},
//disparition de l'infoBulle
blur: function() {
this.infoBulle.classed("selected", false)
.transition()
.duration(400)
.style("opacity", 0);
this.infoBulle.style("top", this.parametres.height);
},
//zoom sur un point
grow: function(node, scale) {
if (!this.static) {
d3.select(node)
.attr("z-index", 1)
.transition()
.duration(200)
.attr("r", this.parametres.nodeSizeInterval[1]*scale);
}
},
//dézoom sur un point
shrink: function(radius, node) {
if (!this.static) {
d3.select(node)
.transition()
.duration(70)
.attr("z-index", 0)
.attr("r", radius);
}
},
//réaffichage du fond sur recadrage du navigateur
onResize: function(event) {
paper.view.draw();
d3.select('#' + this.parametres.canvasID)
.attr("width", d3.select('#' + this.parametres.selectorID).attr("width"))
.attr("height", d3.select('#' + this.parametres.selectorID).attr("height"));
},
dragstart: function(d,i, object) {
object.rect.xi = object.scale(d3.event.x);
object.static = true;
},
dragmove: function(d, i) {
d.x += d3.event.dx;
d3.select(this).attr("x", d.x);
},
dragend: function(d, i, object) {
ratio = object.scale(d3.event.x)/object.rect.xi;
object.infoBulle.classed("selected", false)
.style("opacity", 0);
object.zoom(ratio);
object.resetCanvas();
object.zoomTransition(ratio);
object.static = false;
var timer = new Date().getTime() - object.beginDate.getTime();
console.log(timer);
},
resetCanvas: function() {
paper.view.remove();
ctx = this.canvas.getContext('2d');
ctx.fillStyle = 'rgb(0,0,0)';
ctx.fillRect(this.canvas.left, this.canvas.top, this.canvas.width, this.canvas.height);
paper.setup(this.canvas);
paper.view.viewSize = new paper.Size(this.parametres.width, this.parametres.height);
},
scale: function(x) {
return (this.parametres.scaleInterval[0] + (this.parametres.scaleInterval[1] - this.parametres.scaleInterval[0])*(x/this.parametres.width));
},
getScale: function(rect) {
if (rect == undefined || !this.parametres.activerZoom) {
return 1;
}
else {
if (this.parametres.zoomNode) {
if (this.parametres.logZoomNode) {
return Math.log(1 + this.scale(rect[0][0].getAttribute("x"))*this.parametres.logZoomNodeParameter)/(Math.log(1 + this.parametres.logZoomNodeParameter));
}
else {
return this.scale(rect[0][0].getAttribute("x"));
}
}
else {
return 1;
}
}
},
zoom: function(ratio) {
object = this;
scale = this.getScale(this.rect);
this.svg.selectAll("circle.node")
.each(function(d) {
var distx = object.parametres.width/2- d.x;
distx *= ratio;
d.x = object.parametres.width/2 - distx;
var disty = object.parametres.height/2 - d.y;
disty *= ratio;
d.y = object.parametres.height/2 - disty;
d.scaledPoids = d.poids*scale;
});
},
zoomTransition: function() {
var object = this;
var c = 0;
this.svg.selectAll("circle.node")
.transition()
.duration(Math.max(400*ratio, 400/ratio))
.attr("cx", function(d) {
return d.x;
})
.attr("cy", function(d) {
return d.y;
})
.attr("r", function(d) { return object.radius(d.scaledPoids);})
.each("end", function() {
c++;
if (c == object.length) {
object.static = false;
object.createBackground();
}
});
},
mouseDown: function(e) {
this.isDown = true;
this.mouse.x = e.x;
this.mouse.y = e.y;
this.center = {};
/*this.center.x = paper.view.center.x;
this.center.y = paper.view.center.y;*/
var object = this;
setTimeout(function() {
if (object.isDown && !object.drag2) {
object.blur();
//d3.select(object.canvas).style("visibility", "hidden");
object.resetCanvas();
object.static = true;
object.drag2 = true;
}
}, 300);
},
mouseMove: function(e) {
if (this.drag2) {
diff = {};
diff.x = e.x - this.mouse.x;
diff.y = e.y - this.mouse.y;
/*this.center.x -= diff.x;
this.center.y -= diff.y;*/
this.svg.selectAll('circle.node')
.attr("cx", function(d) {
d.x += diff.x;
return d.x;
})
.attr("cy", function(d) {
d.y += diff.y;
return d.y;
});
this.mouse.x = e.x; this.mouse.y = e.y;
}
},
mouseUp: function(e) {
if (this.drag2) {
//paper.view.center = new paper.Point(this.center.x, this.center.y);
//d3.select(object.canvas).style("visibility", "visible");
this.createBackground();
this.static = false;
this.drag2 = false;
}
this.isDown = false;
this.mouse = {};
},
colorBrighten: function(node) {
//node.style("opacity", 0.5);
node.style("stroke", "#000")
.style("stroke-width", 1);
},
colorDarken: function(node) {
//node.style("opacity", 1);
node.style("stroke", "#fff")
.style("stroke-width", 0.75);
},
noOcclusions: function(data, node) {
var allNodes = this.svg.selectAll("circle.node");
var x1 = data.x, y1 = data.y, r1 = parseFloat(node.attr("r"));
// var x1 = parseFloat(node.attr("cx")), y1 = parseFloat(node.attr("cy")), r1 = parseFloat(node.attr("r"));
allNodes.each(function(d) {
var x2 = d.x, y2 = d.y, r2 = parseFloat(d3.select(this).attr("r"));
var dist = Math.sqrt(Math.pow((x2 - x1),2) + Math.pow((y2 - y1),2));
if (dist <= r1 + r2 && dist != 0) {
x2 = x2 + (x2-x1)*(r1+r2+1-dist)/dist;
y2 = y2 + (y2-y1)*(r1+r2+1-dist)/dist;
d3.select(this).transition()
.delay(50)
.attr("cx", x2)
.attr("cy", y2);
}
});
for (var i = 0; i < allNodes[0].length; i++) {
otherNode = d3.select(allNodes[0][i]);
var x2 = parseFloat(otherNode.attr("cx")), y2 = parseFloat(otherNode.attr("cy")), r2 = parseFloat(otherNode.attr("r"));
var dist = Math.sqrt(Math.pow((x2 - x1),2) + Math.pow((y2 - y1),2));
if (dist <= r1 + r2 && dist != 0) {
x2 = x2 + (x2-x1)*(r1+r2+1-dist)/dist;
y2 = y2 + (y2-y1)*(r1+r2+1-dist)/dist;
otherNode.transition()
.delay(50)
.attr("cx", x2)
.attr("cy", y2);
}
}
},
replaceAll: function() {
this.svg.selectAll("circle.node")
.transition()
.delay(50)
.attr("cx", function(d) {return d.x;})
.attr("cy", function(d) {return d.y;});
},
displayInfos: function(node, trueNode) {
// Calcul du temps de l'image
if (node.type == "cluster") {
this.lateral.node = trueNode;
this.lateral.cluster = this.clusters[node.group];
var clusterInfos = "Ce cluster correspond au thème " + this.lateral.cluster.id + " et contient " + this.lateral.cluster.items.length + " éléments."
object = this;
this.lateral.select("p.infosCluster").html(clusterInfos);
this.lateral.select("span.descriptif").html("Plus d'infos sur un élément-clé du cluster:");
var maxWeight = 0, rep = 0;
for (i = 0; i < this.lateral.cluster.items.length; i++) {
if (this.lateral.cluster.items[i].value > maxWeight) {
maxWeight = this.lateral.cluster.items[i].value;
rep = i;
}
}
key = this.lateral.cluster.items[rep].key;
}
else {
this.lateral.select("span.descriptif").html("Plus d'infos sur l'élément:");
this.lateral.select("p.infosCluster").html("");
key = node.key;
}
var infos = /I_am_a_legend_([0-9]+)\.jpg/.exec(images[key]);
var temps = parseInt(infos[1]);
var heures = parseInt(temps/90000);
var temps = temps%90000;
var minutes = parseInt(temps/1500);
temps = temps%1500;
var secondes = parseInt(temps/25);
this.lateral.select("span.tempsScene").html(heures + ":" + minutes + ":" + secondes);
this.lateral.select("img.image").attr("src", '../images/' + images[key]);
this.lateral.select("span.groupeId").html(node.group);
// trouver ses potes de groupes
var liste = "", first = true, cpt = 0;
if (node.group!=carto.clusters.length) {
for (var i=0; i<carto.clusters[node.group].items.length; ++i) {
if (i==key) {
continue;
}
if (first) {
first = false;
}
else {
liste+= ", ";
}
liste+= carto.clusters[node.group].items[i].key;
++cpt;
}
}
else {
liste = "null (membre des unclustered)";
}
this.lateral.select("span.autresMembres").html(liste);
// trouver ses voisins
liste = "", first = true, cpt = 0;
for (var i=0; cpt<5 && i<links.images[key].v.length; ++i) {
if (first) {
first = false;
}
else {
liste+= ", ";
}
liste+= links.images[key].v[i].id;
++cpt;
}
this.lateral.select("span.voisins").html(liste);
this.displayLateral();
},
displayLateral: function() {
this.lateral.transition()
.duration(750)
.style("width", "400px")
.style("opacity", "1");
},
hideLateral: function() {
this.lateral.transition()
.duration(500)
.style("width", "0px")
.style("opacity", "0");
},
clusterDatas: function(clusters) {
dataset = [];
for (var i = 0; i < this.data.nodes.length; i++) {
for (var j = 0; j < clusters.length; j++) {
if (this.data.nodes[i].group == clusters[j]) {
dataset.push(this.data.nodes[i]);
}
}
}
return dataset;
},
displayChoice: function() {
this.choice.transition()
.duration(500)
.style("width", "200px")
.style("opacity", "1");
},
fillChoices: function() {
for (var i = 0; i < this.clusters.length; i++) {
this.choice.select("select")
.append("option")
.attr("id", this.clusters[i].id)
.text(this.clusters[i].id + " (" + this.clusters[i].items.length + ")");
}
},
hideChoice: function() {
this.choice.transition()
.duration(500)
.style("width", "0px")
.style("opacity", "0");
},
spread: function() {
object.blur();
if (this.choice.select("select")[0][0].selectedIndex != -1) {
this.hideChoice();
this.svg.selectAll("circle.node").remove();
this.resetCanvas();
var clusters = [];
var selection = this.choice.select("select")[0][0];
while (selection.selectedIndex > -1) {
var selectedCluster = selection.children[selection.selectedIndex];
clusters.push(selectedCluster.id);
selectedCluster.selected = false;
}
var dataset = this.clusterDatas(clusters);
this.showNodes(dataset);
this.createBackground();
object = this;
d3.select("h1 button.select").text("Revenir à la vue globale")
.on("click", function() {object.globalize();});
}
},
globalize: function() {
this.svg.selectAll("circle.node").remove();
paper.view.remove();
this.display(false);
d3.select("h1 button.select").text("Faire une selection")
.on("click", function() {object.displayChoice();});
}
};