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neurographer1.html
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neurographer1.html
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<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
</head>
<body>
<script src="js/three.min.js"></script>
<script src="js/TrackballControls.js"></script>
<script src="lapicque1.js"></script>
<script>
var container;
var camera, controls, scene, projector, renderer;
var neurones=[],edges=[],plane;
var mouse = new THREE.Vector2(), offset = new THREE.Vector3(),INTERSECTED, SELECTED;
var ctx,buffer=[],t=0;
var lastSelected;
init();
animate();
reset();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 30, window.innerWidth / window.innerHeight, 1, 10000 );
camera.position.z = 3000;
controls = new THREE.TrackballControls( camera );
scene = new THREE.Scene();
scene.add( new THREE.AmbientLight( 0x505050 ) );
var light = new THREE.SpotLight( 0xffffff, 1.5 );
light.position.set( 0, 500, 2000 );
scene.add( light );
plane = new THREE.Mesh( new THREE.PlaneGeometry( 2000, 2000, 8, 8 ), new THREE.MeshBasicMaterial( { color: 0x000000, opacity: 0.25, transparent: true, wireframe: true } ) );
plane.visible = false;
scene.add( plane );
projector = new THREE.Projector();
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.sortObjects = false;
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
var info = document.createElement( 'div' );
info.style.position = 'absolute';
info.style.top = '10px';
info.style.width = '100%';
info.style.textAlign = 'center';
info.innerHTML = '<button onclick="javascript:addNeuroneRandom()">Add Neurone</button>\
<button onclick="javascript:addNeuroneGrid()">Add Grid</button>\
<button onclick="javascript:autoWire()">Autowire</button>\
<button onclick="javascript:unWire()">Unwire</button>\
<button onclick="javascript:reset()">Reset</button>';
container.appendChild( info );
var raster=document.createElement('div');
raster.style.position='absolute';
raster.style.bottom='10px';
raster.style.textAlign='center';
raster.innerHTML='<canvas id="myCanvas" width="400" height="100" style="border:1px solid #000"></canvas>';
container.appendChild(raster);
ctx=document.getElementById("myCanvas").getContext("2d");
ctx.save();
renderer.domElement.addEventListener( 'mousemove', onDocumentMouseMove, false );
renderer.domElement.addEventListener( 'mousedown', onDocumentMouseDown, false );
renderer.domElement.addEventListener( 'mouseup', onDocumentMouseUp, false );
window.addEventListener( 'resize', onWindowResize, false );
}
function addNeurone(x,y,z) {
var geometry = new THREE.CubeGeometry(50,50,50);
var neurone = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: 0xffffff } ) );
//var v=new THREE.Vector3(Math.random() * 1000 - 500,Math.random() * 600 - 300,Math.random() * 600 - 300);
var v=new THREE.Vector3(x,y,z);
neurone.material.ambient = neurone.material.color;
neurone.position=v;
neurone.state=A*Math.random();
neurone.output=0;
neurone.material.color.r=
neurone.material.color.g=
neurone.material.color.b=neurone.state/A;
neurone.edgelist=[];
neurone.neighbours=[];
scene.add( neurone );
neurones.push( neurone );
return neurone;
}
function wireNeurones(n1,n2) {
var geometry = new THREE.Geometry();
geometry.vertices.push(n1.position);
geometry.vertices.push(n2.position);
var line = new THREE.Line(geometry, new THREE.LineBasicMaterial({color: 0x555555, linewidth: 2}));
scene.add(line);
n1.edgelist.push(line);
n2.edgelist.push(line);
edges.push(line);
}
function unWire() {
for(i=0;i<edges.length;i++)
scene.remove(edges[i]);
edges.length=0;
for(i=0;i<neurones.length;i++)
{
neurones[i].neighbours.length=0;
neurones[i].edgelist.length=0;
}
}
function raster() {
if(lastSelected) {
ctx.fillStyle="white";
ctx.fillRect(0,0,400,100);
ctx.beginPath();
ctx.moveTo(0,0);
for(i=0;i<200;i++)
ctx.lineTo(2*i,50-buffer[i]);
ctx.moveTo(2*t,0);
ctx.lineTo(2*t,100);
ctx.stroke();
if(lastSelected.output==0)
buffer[t]=lastSelected.state;
else
buffer[t]=A;
t++;
if(t==200)
t=0;
}
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseDown( event ) {
event.preventDefault();
var vector = new THREE.Vector3( mouse.x, mouse.y, 0.5 );
projector.unprojectVector( vector, camera );
var raycaster = new THREE.Raycaster( camera.position, vector.sub( camera.position ).normalize() );
var intersects = raycaster.intersectObjects( neurones );
if ( intersects.length > 0 ) {
controls.enabled = false;
lastSelected=SELECTED = intersects[ 0 ].object;
var intersects = raycaster.intersectObject( plane );
offset.copy( intersects[ 0 ].point ).sub( plane.position );
container.style.cursor = 'move';
}
}
function onDocumentMouseMove( event )
{
event.preventDefault();
mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
var vector = new THREE.Vector3( mouse.x, mouse.y, 0.5 );
projector.unprojectVector( vector, camera );
var raycaster = new THREE.Raycaster( camera.position, vector.sub( camera.position ).normalize() );
if ( SELECTED ) {
var intersects = raycaster.intersectObject( plane );
SELECTED.position.copy( intersects[0].point.sub( offset ) );
for(i=0;i<SELECTED.edgelist.length;i++)
SELECTED.edgelist[i].geometry.verticesNeedUpdate = true;
return;
}
var intersects = raycaster.intersectObjects( neurones );
if ( intersects.length > 0 ) {
if ( INTERSECTED != intersects[ 0 ].object ) {
if ( INTERSECTED ) INTERSECTED.material.color.setHex( INTERSECTED.currentHex );
INTERSECTED = intersects[0].object;
INTERSECTED.currentHex = INTERSECTED.material.color.getHex();
plane.position.copy( INTERSECTED.position );
plane.lookAt( camera.position );
}
container.style.cursor = 'pointer';
} else {
if ( INTERSECTED ) INTERSECTED.material.color.setHex( INTERSECTED.currentHex );
INTERSECTED = null;
container.style.cursor = 'auto';
}
}
function onDocumentMouseUp( event ) {
event.preventDefault();
controls.enabled = true;
if ( INTERSECTED ) {
plane.position.copy( INTERSECTED.position );
SELECTED = null;
}
container.style.cursor = 'auto';
}
function animate() {
requestAnimationFrame( animate );
lapicque();
raster();
render();
}
function render() {
controls.update();
renderer.render( scene, camera );
}
</script>
</body>
</html>