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canvas_geometry_shape.html
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canvas_geometry_shape.html
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<!DOCTYPE HTML>
<html lang="en">
<head>
<title>three.js canvas - geometry - shapes</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;"/>
<style type="text/css">
body {
font-family: Monospace;
background-color: #f0f0f0;
margin: 0px;
overflow: hidden;
}
</style>
</head>
<body>
<canvas id="debug" style="position:absolute; left:100px"></canvas>
<script type="text/javascript" src="../build/Three.js"></script>
<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
<script type="text/javascript" src="js/Stats.js"></script>
<script type="text/javascript">
var container, stats;
var camera, scene, renderer;
var text, plane;
var targetRotation = 0;
var targetRotationOnMouseDown = 0;
var mouseX = 0;
var mouseXOnMouseDown = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
var info = document.createElement( 'div' );
info.style.position = 'absolute';
info.style.top = '10px';
info.style.width = '100%';
info.style.textAlign = 'center';
info.innerHTML = 'Simple procedurally generated 3D shapes example by <a href="http://www.lab4games.net/zz85/blog">zz85</a><br/>Drag to spin';
container.appendChild( info );
camera = new THREE.Camera( 50, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.y = 150;
camera.position.z = 500;
camera.target.position.y = 150;
scene = new THREE.Scene();
parent = new THREE.Object3D();
parent.position.y = 50;
scene.addChild( parent );
function addGeometry( geometry, color, x, y, z, rx, ry, rz, s ) {
var mesh = new THREE.Mesh( geometry, [ new THREE.MeshBasicMaterial( { color: color } ), new THREE.MeshBasicMaterial( { color: 0x000000, wireframe: true } ) ] );
mesh.position.set( x, y, z );
mesh.rotation.set( rx, ry, rz );
mesh.scale.set( s, s, s );
parent.addChild( mesh );
}
var extrudeSettings = { amount: 20, bevelEnabled: true, bevelSegments: 2, steps: 2 }; //amount: 40, steps: 2
// California
var californiaPts = [];
californiaPts.push( new THREE.Vector2 ( 610, 320 ) );
californiaPts.push( new THREE.Vector2 ( 450, 300 ) );
californiaPts.push( new THREE.Vector2 ( 392, 392 ) );
californiaPts.push( new THREE.Vector2 ( 266, 438 ) );
californiaPts.push( new THREE.Vector2 ( 190, 570 ) );
californiaPts.push( new THREE.Vector2 ( 190, 600 ) );
californiaPts.push( new THREE.Vector2 ( 160, 620 ) );
californiaPts.push( new THREE.Vector2 ( 160, 650 ) );
californiaPts.push( new THREE.Vector2 ( 180, 640 ) );
californiaPts.push( new THREE.Vector2 ( 165, 680 ) );
californiaPts.push( new THREE.Vector2 ( 150, 670 ) );
californiaPts.push( new THREE.Vector2 ( 90, 737 ) );
californiaPts.push( new THREE.Vector2 ( 80, 795 ) );
californiaPts.push( new THREE.Vector2 ( 50, 835 ) );
californiaPts.push( new THREE.Vector2 ( 64, 870 ) );
californiaPts.push( new THREE.Vector2 ( 60, 945 ) );
californiaPts.push( new THREE.Vector2 ( 300, 945 ) );
californiaPts.push( new THREE.Vector2 ( 300, 743 ) );
californiaPts.push( new THREE.Vector2 ( 600, 473 ) );
californiaPts.push( new THREE.Vector2 ( 626, 425 ) );
californiaPts.push( new THREE.Vector2 ( 600, 370 ) );
californiaPts.push( new THREE.Vector2 ( 610, 320 ) );
var californiaShape = new THREE.Shape( californiaPts );
var california3d = new THREE.ExtrudeGeometry( californiaShape, { amount: 20 } );
// Triangle
var triangleShape = new THREE.Shape();
triangleShape.moveTo( 80, 20 );
triangleShape.lineTo( 40, 80 );
triangleShape.lineTo( 120, 80 );
triangleShape.lineTo( 80, 20 ); // close path
var triangle3d = triangleShape.extrude( extrudeSettings );
// Heart
var x = 0, y = 0;
var heartShape = new THREE.Shape(); // From http://blog.burlock.org/html5/130-paths
heartShape.moveTo( x + 25, y + 25 );
heartShape.bezierCurveTo( x + 25, y + 25, x + 20, y, x, y );
heartShape.bezierCurveTo( x - 30, y, x - 30, y + 35,x - 30,y + 35 );
heartShape.bezierCurveTo( x - 30, y + 55, x - 10, y + 77, x + 25, y + 95 );
heartShape.bezierCurveTo( x + 60, y + 77, x + 80, y + 55, x + 80, y + 35 );
heartShape.bezierCurveTo( x + 80, y + 35, x + 80, y, x + 50, y );
heartShape.bezierCurveTo( x + 35, y, x + 25, y + 25, x + 25, y + 25 );
var heart3d = heartShape.extrude( extrudeSettings );
//heartShape.debug( document.getElementById("debug") );
// Square
var sqLength = 80;
var squareShape = new THREE.Shape();
squareShape.moveTo( 0,0 );
squareShape.lineTo( 0, sqLength );
squareShape.lineTo( sqLength, sqLength );
squareShape.lineTo( sqLength, 0 );
squareShape.lineTo( 0, 0 );
var square3d = squareShape.extrude( extrudeSettings );
// Rectangle
var rectLength = 120, rectWidth = 40;
var rectShape = new THREE.Shape();
rectShape.moveTo( 0,0 );
rectShape.lineTo( 0, rectWidth );
rectShape.lineTo( rectLength, rectWidth );
rectShape.lineTo( rectLength, 0 );
rectShape.lineTo( 0, 0 );
var rect3d = rectShape.extrude( extrudeSettings );
// Rounded rectangle
var roundedRectShape = new THREE.Shape();
roundedRect( roundedRectShape, 0, 0, 50, 50, 20 );
var roundedRect3d = roundedRectShape.extrude( extrudeSettings );
function roundedRect( ctx, x, y, width, height, radius ){
ctx.moveTo( x, y + radius );
ctx.lineTo( x, y + height - radius );
ctx.quadraticCurveTo( x, y + height, x + radius, y + height );
ctx.lineTo( x + width - radius, y + height) ;
ctx.quadraticCurveTo( x + width, y + height, x + width, y + height - radius );
ctx.lineTo( x + width, y + radius );
ctx.quadraticCurveTo( x + width, y, x + width - radius, y );
ctx.lineTo( x + radius, y );
ctx.quadraticCurveTo( x, y, x, y + radius );
}
// Circle
var circleRadius = 40;
var circleShape = new THREE.Shape();
circleShape.moveTo( 0, circleRadius );
circleShape.quadraticCurveTo( circleRadius, circleRadius, circleRadius, 0 );
circleShape.quadraticCurveTo( circleRadius, -circleRadius, 0, -circleRadius );
circleShape.quadraticCurveTo( -circleRadius, -circleRadius, -circleRadius, 0 );
circleShape.quadraticCurveTo( -circleRadius, circleRadius, 0, circleRadius );
var circle3d = circleShape.extrude( extrudeSettings );
// Fish
x = y = 0;
var fishShape = new THREE.Shape();
fishShape.moveTo( x, y );
fishShape.quadraticCurveTo( x + 50, y + 80, x + 90, y + 10 );
fishShape.quadraticCurveTo( x + 100, y + 10, x + 115, y + 40 );
fishShape.quadraticCurveTo( x + 100, y, x + 115, y - 40 );
fishShape.quadraticCurveTo( x + 100, y + 10, x + 90, y - 10 );
fishShape.quadraticCurveTo( x + 50, y - 80, x, y );
var fish3d = fishShape.extrude( extrudeSettings );
// Arc Circle
var arcShape = new THREE.Shape();
arcShape.moveTo( 0, 0);
arcShape.arc(10,10, 40, 0, Math.PI*2,false);
var holePath = new THREE.Path();
holePath.moveTo( 0, 0);
holePath.arc(10, 10, 10, 0, Math.PI*2, true);
arcShape.holes.push(holePath);
var arc3d = arcShape.extrude( extrudeSettings );
// Spline shape + Path Extrusion
var splinepts = [];
splinepts.push( new THREE.Vector2 ( 350, 100 ) );
splinepts.push( new THREE.Vector2 ( 400, 450 ) );
splinepts.push( new THREE.Vector2 ( -140, 350 ) );
splinepts.push( new THREE.Vector2 ( 0, 0 ) );
var splineShape = new THREE.Shape( );
splineShape.moveTo( 0, 0 );
splineShape.splineThru( splinepts );
//splineShape.debug( document.getElementById("debug") );
var extrudePath = new THREE.Path();
extrudePath.moveTo(0,0);
extrudePath.lineTo( 10, 10 );
extrudePath.quadraticCurveTo( 80, 60, 160, 10 );
extrudePath.quadraticCurveTo( 240, -40, 320, 10 );
extrudeSettings.path = extrudePath;
extrudeSettings.bevelEnabled = false;
var splineShape3d = splineShape.extrude( extrudeSettings );
addGeometry( california3d, 0xffaa00, -300, -100, 0, 0, 0, 0, 0.25 );
addGeometry( triangle3d, 0xffee00, -180, 0, 0, 0, 0, 0, 1 );
addGeometry( roundedRect3d, 0x005500, -150, 150, 0, 0, 0, 0, 1 );
addGeometry( square3d, 0x0055ff, 150, 100, 0, 0, 0, 0, 1 );
addGeometry( heart3d, 0xff1100, 0, 100, 0, 3.14, 0, 0, 1 );
addGeometry( circle3d, 0x00ff11, 120, 250, 0, 0, 0, 0, 1 );
addGeometry( fish3d, 0x222222, -50, 200, 0, 0, 0, 0, 1 );
addGeometry( splineShape3d, 0x888888, -50, -100, -50, 0, 0, 0, 0.2 );
addGeometry( arc3d, 0xbb4422, 150, 0, 0, 0, 0, 0, 1 );
renderer = new THREE.CanvasRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
container.appendChild( stats.domElement );
document.addEventListener( 'mousedown', onDocumentMouseDown, false );
document.addEventListener( 'touchstart', onDocumentTouchStart, false );
document.addEventListener( 'touchmove', onDocumentTouchMove, false );
}
//
function onDocumentMouseDown( event ) {
event.preventDefault();
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
document.addEventListener( 'mouseup', onDocumentMouseUp, false );
document.addEventListener( 'mouseout', onDocumentMouseOut, false );
mouseXOnMouseDown = event.clientX - windowHalfX;
targetRotationOnMouseDown = targetRotation;
}
function onDocumentMouseMove( event ) {
mouseX = event.clientX - windowHalfX;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
}
function onDocumentMouseUp( event ) {
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentMouseOut( event ) {
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentTouchStart( event ) {
if ( event.touches.length == 1 ) {
event.preventDefault();
mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
targetRotationOnMouseDown = targetRotation;
}
}
function onDocumentTouchMove( event ) {
if ( event.touches.length == 1 ) {
event.preventDefault();
mouseX = event.touches[ 0 ].pageX - windowHalfX;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
}
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
parent.rotation.y += ( targetRotation - parent.rotation.y ) * 0.05;
renderer.render( scene, camera );
}
</script>
</body>
</html>