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X3DLoader.js
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X3DLoader.js
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THREE.X3DLoader = function (manager) {
this.manager = (manager !== undefined) ? manager : THREE.DefaultLoadingManager;
};
THREE.X3DLoader.prototype = {
constructor: THREE.X3DLoader,
load: function (url, onLoad, onProgress, onError) {
var scope = this;
var loader = new THREE.XHRLoader(scope.manager);
loader.setCrossOrigin(this.crossOrigin);
loader.load( url, function (text) {
onLoad(scope.parse(text));
}, onProgress, onError);
},
parse: function (text) {
console.time('X3DLoader');
var scene = new THREE.Scene();
var parser = new DOMParser();
xmlDoc = parser.parseFromString(text, "text/xml");
var parseNode = function (data, parent) {
var object = parent;
switch (data.tagName) {
case 'Transform':
case 'Group':
object = new THREE.Object3D();
// TODO If it's a definition, add to defines
var translation = data.getAttribute('translation');
var rotation = data.getAttribute('rotation');
var scale = data.getAttribute('scale');
if (translation) {
var parts = translation.split(' ');
parts = parts.map(function (s) { return parseFloat(s); });
object.position.set(parts[0], parts[1], parts[2]);
}
if (rotation) {
var parts = rotation.split(' ');
parts = parts.map(function (s) { return parseFloat(s); });
object.quaternion.setFromAxisAngle(new THREE.Vector3(parts[0], parts[1], parts[2]), parts[3]);
}
if (scale) {
var parts = scale.split(' ');
parts = parts.map(function (s) { return parseFloat(s); });
object.scale.set(parts[0], parts[1], parts[2]);
}
parent.add(object);
break;
case 'Shape':
console.log('Shape: ');
console.log(data);
object = new THREE.Mesh();
// TODO If it's a definition, add to defines
parent.add(object);
break;
case 'Background':
console.log('Background: ');
console.log(data);
break;
case 'Box':
// TODO x3d has a Box property 'solid' which determines
// if the box is visible from the inside.
console.log(data);
var sizes = data.getAttribute('size');
if (sizes) {
sizes = sizes.split(' ').map(function (s) { return parseFloat(s); });
parent.geometry = new THREE.BoxGeometry(sizes[0], sizes[1], sizes[2]);
} else {
parent.geometry = new THREE.BoxGeometry(2, 2, 2);
}
break;
case 'Cylinder':
// TODO openEnded/top/bottom, segments
console.log(data);
var radius = 1;
var radiusData = parseFloat(data.getAttribute('radius'));
var height = 2;
var heightData = parseFloat(data.getAttribute('height'));
if (radiusData) {
radius = radiusData;
}
if (heightData) {
height = heightData;
}
parent.geometry = new THREE.CylinderGeometry(radius, radius, height);
break;
case 'Cone':
// TODO show bottom
// TODO side
// TODO solid
console.log(data);
var bottom = 1;
var bottomData = parseFloat(data.getAttribute('bottom'));
var height = 2;
var heightData = parseFloat(data.getAttribute('height'));
if (bottomData) {
bottom = bottomData;
}
if (heightData) {
height = heightData;
}
parent.geometry = new THREE.CylinderGeometry(0, bottom, height);
break;
case 'Sphere':
// TODO x3d has a Sphere property 'solid' which determines
// if the sphere is visible from the inside.
var radius = parseFloat(data.getAttribute('radius'));
if (radius) {
parent.geometry = new THREE.SphereGeometry(radius, 32, 32);
} else {
parent.geometry = new THREE.SphereGeometry(1, 32, 32);
}
break;
case 'Text':
// TODO Parse FontStyle
var textString = data.getAttribute('string');
var textStrings = textString.match(/"(.*?)"/g);
textStrings = textStrings.map(function (s) { return s.replace(/"/g,''); });
var textGeometry = new THREE.Geometry();
var translateNextLine = new THREE.Matrix4().makeTranslation(0, -1, 0);
for (var i = 0; i < textStrings.length; i++) {
var newText = new THREE.TextGeometry(textStrings[i], {size: 1, height: 0})
if (i > 0) {
newText.applyMatrix(translateNextLine);
translateNextLine.multiply(translateNextLine);
}
textGeometry.merge(newText);
}
parent.geometry = textGeometry;
break;
case 'IndexedFaceSet':
console.log(data);
// TODO all of this
break;
case 'ElevationGrid':
console.log(data);
// TODO all of this
break;
case 'Extrusion':
console.log(data);
// TODO all of this
break;
case 'Appearance': break;
case 'TwoSidedMaterial':
case 'Material':
//TODO Diffuse color
//TODO Emissive color
//TODO Specular color
//TODO Transparency
//TODO Ambient intensity
//TODO Shininess
console.log(data);
break;
case 'ImageTexture':
console.log(data);
var urlString = data.getAttribute('url');
var urlStrings = urlString.match(/"(.*?)"/g);
urlStrings = urlStrings.map(function (s) { return s.replace(/"/g,''); });
var image;
var i = 0;
while (!image) {
image = THREE.ImageUtils.loadTexture(urlStrings[i]);
i++;
}
parent.material = new THREE.MeshBasicMaterial({ map: image });
break;
default:
console.log('Unknown type: ' + data.tagName);
console.log(data);
break;
}
parseNodes(data.children, object);
};
var parseNodes = function (children, parent) {
for (var i = 0; i < children.length; i++) {
parseNode(children[i], parent);
}
}
parseNodes(xmlDoc.getElementsByTagName("Scene")[0].children, scene);
console.timeEnd('X3DLoader');
return scene;
}
};