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index3.html
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<!DOCTYPE HTML>
<html>
<head>
<style>
body {
margin: 0px;
padding: 0px;
}
canvas {
border: 1px solid #9C9898;
}
</style>
<script src="kinetic-v3.9.6.min.js"></script>
<script src="hashtable.js"></script>
<script>
var maxX = 800;
var maxY = 800;
maxDeltaV = 10;
var Nodes = {"list":[
{"name":"node1", "children":["node2", "node5", "node11", "node41"]},
{"name":"node2", "children":["node3", "node1"]},
{"name":"node3", "children":["node4", "node2"]},
{"name":"node4", "children":["node5", "node3"]},
{"name":"node5", "children":["node1", "node4"]},
{"name":"node11", "children":["node12", "node15", "node1", "node21"]},
{"name":"node12", "children":["node13", "node11"]},
{"name":"node13", "children":["node14", "node12"]},
{"name":"node14", "children":["node15", "node13"]},
{"name":"node15", "children":["node11", "node14"]},
{"name":"node21", "children":["node22", "node25", "node11", "node31"]},
{"name":"node22", "children":["node23", "node21"]},
{"name":"node23", "children":["node24", "node22"]},
{"name":"node24", "children":["node25", "node23"]},
{"name":"node25", "children":["node21", "node24"]},
{"name":"node31", "children":["node32", "node35", "node21", "node41"]},
{"name":"node32", "children":["node33", "node31"]},
{"name":"node33", "children":["node34", "node32"]},
{"name":"node34", "children":["node35", "node33"]},
{"name":"node35", "children":["node31", "node34"]},
{"name":"node41", "children":["node42", "node45", "node31", "node1"]},
{"name":"node42", "children":["node43", "node41"]},
{"name":"node43", "children":["node44", "node42"]},
{"name":"node44", "children":["node45", "node43"]},
{"name":"node45", "children":["node41", "node44"]}
]
};
var relationList = [];
window.onload = function() {
var stage = new Kinetic.Stage({
container: "container",
width: maxX,
height: maxY
});
layer = new Kinetic.Layer();
stage.add(layer);
renderNodes(layer, Nodes.list);
//console.log(relationList);
stage.draw();
stage.onFrame(function(frame){
console.log("calculating frame");
calculateFrame(layer);
stage.draw();
});
stage.start();
//setTimeout(function() {stage.stop()},5000);
};
var calculateFrame = function(layer){
newPointTable = new HashTable({});
//calculate attactions
for(i=0; i<relationList.length; i++){
node1 = layer.get('.'+relationList[i][0])[0];
node2 = layer.get('.'+relationList[i][1])[0];
node1Pos = node1.getPosition();
node2Pos = node2.getPosition();
vx = node2Pos.x-node1Pos.x;
vy = node2Pos.y-node1Pos.y;
mag = Math.sqrt(vx*vx+vy*vy);
vx /= mag;
vy /= mag;
dv = force = (node1.getChildren()[0].getRadius() * node2.getChildren()[0].getRadius() * mag)/(100000);
//console.log(relationList[i][0] + " is attracted to " + relationList[i][1] + " with a force of "+ dv);
addOrModifyNode(newPointTable, relationList[i][0], [node1Pos.x, node1Pos.y], [vx*dv, vy*dv]);
addOrModifyNode(newPointTable, relationList[i][1], [node2Pos.x, node2Pos.y], [-vx*dv, -vy*dv]);
}
//calculate repulsions
for(x=0; x<Nodes.list.length; x++){
for(y=x; y<Nodes.list.length; y++){
if(x==y){
continue;
}
node1 = layer.get('.'+Nodes.list[x].name)[0];
node2 = layer.get('.'+Nodes.list[y].name)[0];
node1Pos = node1.getPosition();
node2Pos = node2.getPosition();
vx = node2Pos.x-node1Pos.x;
vy = node2Pos.y-node1Pos.y;
mag = Math.sqrt(vx*vx+vy*vy);
vx /= mag;
vy /= mag;
force = (10 * node1.getChildren()[0].getRadius() * node2.getChildren()[0].getRadius())/(mag*mag);
//console.log(Nodes.list[x].name + " is repulsed by " + Nodes.list[y].name + " with a force of "+ force);
addOrModifyNode(newPointTable, Nodes.list[x].name, [node1Pos.x, node1Pos.y], [-vx*force, -vy*force]);
addOrModifyNode(newPointTable, Nodes.list[y].name, [node2Pos.x, node2Pos.y], [vx*force, vy*force]);
}
}
//calculate edge repulsions
for(i=0;i<Nodes.list.length; i++){
node = layer.get('.'+Nodes.list[i].name)[0];
nodePos = node.getPosition();
nodeAry = [nodePos.x, nodePos.y, node1.getChildren()[0].getRadius()];
//calculate top repulsion
force = calculateRepulsion(nodeAry, [nodePos.x, 0, 50]);
addOrModifyNode(newPointTable, Nodes.list[i].name, [nodePos.x, nodePos.y], [force[0], force[1]]);
//calculate bottom repulsion
force = calculateRepulsion(nodeAry, [nodePos.x, maxY, 50]);
addOrModifyNode(newPointTable, Nodes.list[i].name, [nodePos.x, nodePos.y], [force[0], force[1]]);
//calculate left repulsion
force = calculateRepulsion(nodeAry, [0, nodePos.y, 50]);
addOrModifyNode(newPointTable, Nodes.list[i].name, [nodePos.x, nodePos.y], [force[0], force[1]]);
//calculate right repulsion
force = calculateRepulsion(nodeAry, [maxX, nodePos.y, 50]);
addOrModifyNode(newPointTable, Nodes.list[i].name, [nodePos.x, nodePos.y], [force[0], force[1]]);
}
//move nodes
keys = newPointTable.keys();
for(i=0; i<keys.length ;i++){
node = layer.get('.'+keys[i])[0];
node.setX(newPointTable.getItem(keys[i])[0]);
node.setY(newPointTable.getItem(keys[i])[1]);
}
}
var calculateRepulsion = function(point1, point2){
vx = point2[0]-point1[0];
vy = point2[1]-point1[1];
mag = Math.sqrt(vx*vx+vy*vy);
vx /= mag;
vy /= mag;
force = (10 * point1[2] * point2[2])/(mag*mag);
return [-vx*force, -vy*force];
}
var addOrModifyNode = function(newPointTable, name, Cpos, dv){
if(!newPointTable.hasItem(name)){
newPointTable.setItem(name, [Cpos[0]+(dv[0]),Cpos[1]+(dv[1]) ]);
}else{
oldpoint = newPointTable.getItem(name);
newPointTable.setItem(name, [oldpoint[0]+(dv[0]),oldpoint[1]+(dv[1]) ]);
}
return newPointTable;
}
var renderNodes = function(layer, nodelist){
for(i=0;i<nodelist.length;i++){
layer.add(createNode(nodelist[i].name, 30));
}
for(i=0;i<nodelist.length;i++){
parentNode = layer.get('.'+nodelist[i].name)[0];
for(var y=0;y<nodelist[i].children.length;y++){
childNode = layer.get('.'+nodelist[i].children[y])[0];
//layer.add(joinNodes(parentNode, childNode));
relationList.push([nodelist[i].name, nodelist[i].children[y]]);
}
}
}
var joinNodes = function(node1, node2){
node1Pos = node1.getPosition();
node2Pos = node2.getPosition();
line = new Kinetic.Line({
points: [node1Pos.x, node1Pos.y, node2Pos.x, node2Pos.y],
stroke:"black",
strokeWidth:"2",
name: node1.getName+node2.getName
});
return line;
}
var createNode = function(name, size){
group = new Kinetic.Group({
x: Math.floor((Math.random()*maxX)+1),
y: Math.floor((Math.random()*maxY)+1),
draggable: true,
name: name
});
var circle = new Kinetic.Circle({
x: 0,
y: 0,
radius: size,
fill: "#00D2FF",
stroke: "black",
strokeWidth: 4
});
var text = new Kinetic.Text({
x:0,
y:0,
text: name,
textFill: "black",
align: "center",
verticalAlign: "middle"
});
group.add(circle);
group.add(text);
// add cursor styling
group.on("mouseover", function() {
document.body.style.cursor = "pointer";
});
group.on("mouseout", function() {
document.body.style.cursor = "default";
});
return group;
}
</script>
</head>
<body onmousedown="return false;">
<div id="container"></div>
</body>
</html>