@metacell/geppetto-meta-ui
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React components from geppetto-meta to create neuroscience applications and visualize data.
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JavaScript
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import particle from '../textures/particle.png';
import { hasVisualValue } from "./util";
import { GLTFLoader } from "three/examples/jsm/loaders/GLTFLoader";
import { OBJLoader } from "./OBJLoader";
import { DRACOLoader } from "three/examples/jsm/loaders/DRACOLoader";
import { ColladaLoader } from "three/examples/jsm/loaders/ColladaLoader";
import ModelFactory from '@metacell/geppetto-meta-core/ModelFactory';
import Resources from '@metacell/geppetto-meta-core/Resources';
var MeshFactory = /*#__PURE__*/function () {
function MeshFactory(scene) {
var linesThreshold = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 2000;
var renderingThreshold = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 500;
var depthWrite = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : true;
var linePrecisionMinRadius = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 300;
var minAllowedLinePrecision = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 1;
var particleTexture = arguments.length > 6 ? arguments[6] : undefined;
var dracoDecoderPath = arguments.length > 7 ? arguments[7] : undefined;
var THREE = arguments.length > 8 ? arguments[8] : undefined;
_classCallCheck(this, MeshFactory);
this.scene = scene;
this.depthWrite = depthWrite;
this.meshes = {};
this.splitMeshes = {};
this.visualModelMap = {};
this.connectionLines = {};
this.complexity = 0;
this.sceneMaxRadius = 0;
this.linePrecisionMinRadius = linePrecisionMinRadius;
this.minAllowedLinePrecision = minAllowedLinePrecision;
this.linesThreshold = linesThreshold;
this.renderingThreshold = renderingThreshold;
this.particleTexture = particleTexture;
this.dracoDecoderPath = dracoDecoderPath ? dracoDecoderPath : 'https://www.gstatic.com/draco/versioned/decoders/1.5.5/';
this.THREE = THREE ? THREE : require('three');
this.THREE.Cache.enabled = true;
this.setupLoaders();
this.instancesMap = new Map();
}
return _createClass(MeshFactory, [{
key: "setupLoaders",
value: function setupLoaders() {
var dracoLoader = new DRACOLoader();
dracoLoader.setDecoderPath(this.dracoDecoderPath);
var manager = new this.THREE.LoadingManager();
manager.onProgress = function (item, loaded, total) {
console.log(item, loaded, total);
};
var objLoader = new OBJLoader(manager);
var gltfLoader = new GLTFLoader();
gltfLoader.setDRACOLoader(dracoLoader);
this.loaders = _defineProperty(_defineProperty(_defineProperty(_defineProperty(_defineProperty({}, Resources.GLTF, gltfLoader), Resources.DRC, dracoLoader), Resources.OBJ, objLoader), Resources.COLLADA, new ColladaLoader()), 'TextureLoader', new this.THREE.TextureLoader());
}
}, {
key: "start",
value: function () {
var _start = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee(instancesMap) {
return _regeneratorRuntime().wrap(function _callee$(_context) {
while (1) switch (_context.prev = _context.next) {
case 0:
this.instancesMap = instancesMap;
_context.next = 3;
return this.traverseInstances(this.instancesMap);
case 3:
case "end":
return _context.stop();
}
}, _callee, this);
}));
function start(_x) {
return _start.apply(this, arguments);
}
return start;
}()
}, {
key: "getMeshes",
value: function getMeshes() {
var meshes = _objectSpread({}, this.splitMeshes);
for (var m in this.meshes) {
if (!(m in meshes)) {
meshes[m] = this.meshes[m];
}
}
return meshes;
}
}, {
key: "traverseInstances",
value: function () {
var _traverseInstances = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee2(instances) {
var _iterator, _step, mInstance, gInstance;
return _regeneratorRuntime().wrap(function _callee2$(_context2) {
while (1) switch (_context2.prev = _context2.next) {
case 0:
_iterator = _createForOfIteratorHelper(instances.entries());
_context2.prev = 1;
_iterator.s();
case 3:
if ((_step = _iterator.n()).done) {
_context2.next = 19;
break;
}
mInstance = _step.value;
if (!(mInstance[1].visibility === false)) {
_context2.next = 10;
break;
}
delete this.meshes[mInstance[0]];
return _context2.abrupt("return");
case 10:
if (!(this.meshes[mInstance[0]] !== undefined)) {
_context2.next = 13;
break;
}
if (mInstance[1].color !== undefined) {
this.setColor(mInstance[0], mInstance[1].color);
}
return _context2.abrupt("continue", 17);
case 13:
gInstance = Instances.getInstance(mInstance[0]);
_context2.next = 16;
return this.buildVisualInstance(gInstance);
case 16:
if (mInstance[1].color !== undefined) {
this.setColor(mInstance[0], mInstance[1].color);
}
case 17:
_context2.next = 3;
break;
case 19:
_context2.next = 24;
break;
case 21:
_context2.prev = 21;
_context2.t0 = _context2["catch"](1);
_iterator.e(_context2.t0);
case 24:
_context2.prev = 24;
_iterator.f();
return _context2.finish(24);
case 27:
case "end":
return _context2.stop();
}
}, _callee2, this, [[1, 21, 24, 27]]);
}));
function traverseInstances(_x2) {
return _traverseInstances.apply(this, arguments);
}
return traverseInstances;
}()
}, {
key: "buildVisualInstance",
value: function () {
var _buildVisualInstance = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee3(instance) {
var instancePath, meshes;
return _regeneratorRuntime().wrap(function _callee3$(_context3) {
while (1) switch (_context3.prev = _context3.next) {
case 0:
instancePath = instance.getInstancePath(); // If the same mesh already exists skip the recreation
if (!this.meshes[instancePath]) {
_context3.next = 5;
break;
}
return _context3.abrupt("return");
case 5:
_context3.next = 7;
return this.generate3DObjects(instance);
case 7:
meshes = _context3.sent;
this.init3DObject(meshes, instance);
case 9:
case "end":
return _context3.stop();
}
}, _callee3, this);
}));
function buildVisualInstance(_x3) {
return _buildVisualInstance.apply(this, arguments);
}
return buildVisualInstance;
}()
}, {
key: "generate3DObjects",
value: function () {
var _generate3DObjects = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee4(instance) {
var materials, instanceObjects, threeDeeObjList, mergedObjs, obj;
return _regeneratorRuntime().wrap(function _callee4$(_context4) {
while (1) switch (_context4.prev = _context4.next) {
case 0:
materials = {
mesh: this.getMeshPhongMaterial(),
line: this.getLineMaterial()
};
instanceObjects = [];
_context4.next = 4;
return this.walkVisTreeGen3DObjs(instance, materials);
case 4:
threeDeeObjList = _context4.sent;
if (threeDeeObjList.length > 1) {
mergedObjs = this.merge3DObjects(threeDeeObjList, materials); // investigate need to obj.dispose for obj in threeDeeObjList
if (mergedObjs != null) {
mergedObjs.instancePath = instance.getInstancePath();
instanceObjects.push(mergedObjs);
} else {
for (obj in threeDeeObjList) {
threeDeeObjList[obj].instancePath = instance.getInstancePath();
instanceObjects.push(threeDeeObjList[obj]);
}
}
} else if (threeDeeObjList.length === 1) {
// only one object in list, add it to local array and set
instanceObjects.push(threeDeeObjList[0]);
instanceObjects[0].instancePath = instance.getInstancePath();
}
return _context4.abrupt("return", instanceObjects);
case 7:
case "end":
return _context4.stop();
}
}, _callee4, this);
}));
function generate3DObjects(_x4) {
return _generate3DObjects.apply(this, arguments);
}
return generate3DObjects;
}()
}, {
key: "getMeshPhongMaterial",
value: function getMeshPhongMaterial(color) {
if (color === undefined) {
color = Resources.COLORS.DEFAULT;
}
var material = new this.THREE.MeshPhongMaterial({
opacity: 1,
shininess: 10,
flatShading: false,
depthWrite: this.depthWrite
});
this.setThreeColor(material.color, color);
material.defaultColor = color;
material.defaultOpacity = Resources.OPACITY.DEFAULT;
material.nowireframe = true;
return material;
}
}, {
key: "getLineMaterial",
value: function getLineMaterial(color) {
if (color === undefined) {
color = Resources.COLORS.DEFAULT;
}
var material = new this.THREE.LineBasicMaterial({
depthWrite: this.depthWrite
});
this.setThreeColor(material.color, color);
material.defaultColor = color;
material.defaultOpacity = Resources.OPACITY.DEFAULT;
return material;
}
}, {
key: "setThreeColor",
value: function setThreeColor(threeColor, color) {
if (!isNaN(color % 1)) {
// we have an integer (hex) value
threeColor.setHex(color);
} else if (Object.prototype.hasOwnProperty.call(color, 'r') && Object.prototype.hasOwnProperty.call(color, 'g') && Object.prototype.hasOwnProperty.call(color, 'b')) {
threeColor.r = color.r;
threeColor.g = color.g;
threeColor.b = color.b;
} else {
threeColor.set(color);
}
}
}, {
key: "walkVisTreeGen3DObjs",
value: function () {
var _walkVisTreeGen3DObjs = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee6(instance, materials) {
var _this = this;
var visualValue, threeDObj, visualType, threeDObjList;
return _regeneratorRuntime().wrap(function _callee6$(_context6) {
while (1) switch (_context6.prev = _context6.next) {
case 0:
if (!hasVisualValue(instance)) {
_context6.next = 7;
break;
}
visualValue = instance.getVisualValue();
_context6.next = 4;
return this.create3DObjectFromInstance(instance, visualValue, instance.getId(), materials);
case 4:
threeDObj = _context6.sent;
if (!threeDObj) {
_context6.next = 7;
break;
}
return _context6.abrupt("return", [threeDObj]);
case 7:
try {
visualType = instance.getVisualType();
} catch (e) {
visualType = undefined;
}
if (!(visualType === undefined)) {
_context6.next = 12;
break;
}
return _context6.abrupt("return", []);
case 12:
if (!visualType.isArray) {
_context6.next = 19;
break;
}
threeDObjList = [];
_context6.next = 16;
return Promise.all(visualType.forEach(/*#__PURE__*/function () {
var _ref = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee5(vt) {
return _regeneratorRuntime().wrap(function _callee5$(_context5) {
while (1) switch (_context5.prev = _context5.next) {
case 0:
_context5.t0 = threeDObjList;
_context5.next = 3;
return _this.walkVisTreeGen3DObjsVisualType(vt, instance, materials);
case 3:
_context5.t1 = _context5.sent;
return _context5.abrupt("return", _context5.t0.push.call(_context5.t0, _context5.t1));
case 5:
case "end":
return _context5.stop();
}
}, _callee5);
}));
return function (_x7) {
return _ref.apply(this, arguments);
};
}()));
case 16:
return _context6.abrupt("return", threeDObjList);
case 19:
_context6.next = 21;
return this.walkVisTreeGen3DObjsVisualType(visualType, instance, materials);
case 21:
return _context6.abrupt("return", _context6.sent);
case 22:
case "end":
return _context6.stop();
}
}, _callee6, this);
}));
function walkVisTreeGen3DObjs(_x5, _x6) {
return _walkVisTreeGen3DObjs.apply(this, arguments);
}
return walkVisTreeGen3DObjs;
}()
}, {
key: "walkVisTreeGen3DObjsVisualType",
value: function () {
var _walkVisTreeGen3DObjsVisualType = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee7(visualType, instance, materials) {
var threeDeeObjList, threeDeeObj, v, visualValue, _visualValue, _visualValue2;
return _regeneratorRuntime().wrap(function _callee7$(_context7) {
while (1) switch (_context7.prev = _context7.next) {
case 0:
threeDeeObjList = [];
threeDeeObj = null;
if (!(visualType.getMetaType() === Resources.COMPOSITE_VISUAL_TYPE_NODE)) {
_context7.next = 15;
break;
}
_context7.t0 = _regeneratorRuntime().keys(visualType.getVariables());
case 4:
if ((_context7.t1 = _context7.t0()).done) {
_context7.next = 13;
break;
}
v = _context7.t1.value;
visualValue = visualType.getVariables()[v].getWrappedObj().initialValues[0].value;
_context7.next = 9;
return this.create3DObjectFromInstance(instance, visualValue, visualType.getVariables()[v].getId(), materials);
case 9:
threeDeeObj = _context7.sent;
if (threeDeeObj) {
threeDeeObjList.push(threeDeeObj);
}
_context7.next = 4;
break;
case 13:
_context7.next = 28;
break;
case 15:
if (!(visualType.getMetaType() === Resources.VISUAL_TYPE_NODE && visualType.getId() === 'particles')) {
_context7.next = 23;
break;
}
_visualValue = instance.getVariable().getWrappedObj().initialValues[0].value;
_context7.next = 19;
return this.create3DObjectFromInstance(instance, _visualValue, instance.getVariable().getId(), materials);
case 19:
threeDeeObj = _context7.sent;
if (threeDeeObj) {
threeDeeObjList.push(threeDeeObj);
}
_context7.next = 28;
break;
case 23:
_visualValue2 = visualType.getWrappedObj().defaultValue;
_context7.next = 26;
return this.create3DObjectFromInstance(instance, _visualValue2, visualType.getId(), materials);
case 26:
threeDeeObj = _context7.sent;
if (threeDeeObj) {
threeDeeObjList.push(threeDeeObj);
}
case 28:
return _context7.abrupt("return", threeDeeObjList);
case 29:
case "end":
return _context7.stop();
}
}, _callee7, this);
}));
function walkVisTreeGen3DObjsVisualType(_x8, _x9, _x10) {
return _walkVisTreeGen3DObjsVisualType.apply(this, arguments);
}
return walkVisTreeGen3DObjsVisualType;
}()
}, {
key: "create3DObjectFromInstance",
value: function () {
var _create3DObjectFromInstance = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee8(instance, node, id, materials) {
var threeObject, lines, material, instancePath;
return _regeneratorRuntime().wrap(function _callee8$(_context8) {
while (1) switch (_context8.prev = _context8.next) {
case 0:
threeObject = null;
lines = this.getDefaultGeometryType() === 'lines';
material = lines ? materials.line : materials.mesh;
_context8.t0 = node.eClass;
_context8.next = _context8.t0 === Resources.PARTICLES ? 6 : _context8.t0 === Resources.CYLINDER ? 8 : _context8.t0 === Resources.SPHERE ? 10 : _context8.t0 === Resources.COLLADA ? 12 : _context8.t0 === Resources.OBJ ? 14 : _context8.t0 === Resources.GLTF ? 16 : _context8.t0 === Resources.DRC ? 20 : 24;
break;
case 6:
threeObject = this.createParticles(node);
return _context8.abrupt("break", 25);
case 8:
if (lines) {
threeObject = this.create3DLineFromNode(node, material);
} else {
threeObject = this.create3DCylinderFromNode(node, material);
}
return _context8.abrupt("break", 25);
case 10:
if (lines) {
threeObject = this.create3DLineFromNode(node, material);
} else {
threeObject = this.create3DSphereFromNode(node, material);
}
return _context8.abrupt("break", 25);
case 12:
threeObject = this.loadColladaModelFromNode(node);
return _context8.abrupt("break", 25);
case 14:
threeObject = this.loadThreeOBJModelFromNode(node);
return _context8.abrupt("break", 25);
case 16:
_context8.next = 18;
return this.loadThreeGLTFModelFromNode(node);
case 18:
threeObject = _context8.sent;
return _context8.abrupt("break", 25);
case 20:
_context8.next = 22;
return this.loadThreeDRCModelFromNode(node);
case 22:
threeObject = _context8.sent;
return _context8.abrupt("break", 25);
case 24:
console.error("Invalid node.eClass on node ".concat(node));
case 25:
if (threeObject) {
threeObject.visible = true;
/*
* FIXME: this is empty for collada and obj nodes
*/
instancePath = "".concat(instance.getInstancePath(), ".").concat(id);
threeObject.instancePath = instancePath;
threeObject.highlighted = false;
// FIXME: shouldn't that be the vistree? why is it also done at the loadEntity level??
this.visualModelMap[instancePath] = threeObject;
}
return _context8.abrupt("return", threeObject);
case 27:
case "end":
return _context8.stop();
}
}, _callee8, this);
}));
function create3DObjectFromInstance(_x11, _x12, _x13, _x14) {
return _create3DObjectFromInstance.apply(this, arguments);
}
return create3DObjectFromInstance;
}()
}, {
key: "getDefaultGeometryType",
value: function getDefaultGeometryType() {
var aboveLinesThreshold = this.complexity > this.linesThreshold;
return aboveLinesThreshold ? 'lines' : 'cylinders';
}
}, {
key: "createParticles",
value: function createParticles(node) {
var geometry = new this.THREE.Geometry();
var threeColor = new this.THREE.Color();
var color = "0x".concat(Math.floor(Math.random() * 16777215).toString(16));
threeColor.setHex(color);
var textureLoader = this.loaders['TextureLoader'];
var particleTexture = this.particleTexture ? this.particleTexture : textureLoader.load(particle);
var material = new this.THREE.PointsMaterial({
size: 0.5,
map: particleTexture,
blending: this.THREE.NormalBlending,
depthTest: true,
transparent: true,
color: threeColor,
depthWrite: this.depthWrite
});
for (var p = 0; p < node.particles.length; p++) {
geometry.vertices.push(new this.THREE.Vector3(node.particles[p].x, node.particles[p].y, node.particles[p].z));
}
material.defaultColor = color;
material.defaultOpacity = 1;
var threeObject = new this.THREE.Points(geometry, material);
threeObject.visible = true;
threeObject.instancePath = node.instancePath;
threeObject.highlighted = false;
return threeObject;
}
}, {
key: "create3DLineFromNode",
value: function create3DLineFromNode(node, material) {
var threeObject = null;
if (node.eClass === Resources.CYLINDER) {
var bottomBasePos = new this.THREE.Vector3(node.position.x, node.position.y, node.position.z);
var topBasePos = new this.THREE.Vector3(node.distal.x, node.distal.y, node.distal.z);
var axis = new this.THREE.Vector3();
axis.subVectors(topBasePos, bottomBasePos);
var midPoint = new this.THREE.Vector3();
midPoint.addVectors(bottomBasePos, topBasePos).multiplyScalar(0.5);
var geometry = new this.THREE.Geometry();
geometry.vertices.push(bottomBasePos);
geometry.vertices.push(topBasePos);
threeObject = new this.THREE.Line(geometry, material);
threeObject.applyMatrix(new this.THREE.Matrix4().makeTranslation(0, axis.length() / 2, 0));
threeObject.applyMatrix(new this.THREE.Matrix4().makeRotationY(Math.PI / 2));
threeObject.lookAt(axis);
threeObject.position.fromArray(bottomBasePos.toArray());
threeObject.applyMatrix(new this.THREE.Matrix4().makeRotationY(-Math.PI / 2));
threeObject.geometry.verticesNeedUpdate = true;
} else if (node.eClass === Resources.SPHERE) {
var sphere = new this.THREE.SphereGeometry(node.radius, 20, 20);
threeObject = new this.THREE.Mesh(sphere, material);
threeObject.position.set(node.position.x, node.position.y, node.position.z);
threeObject.geometry.verticesNeedUpdate = true;
}
return threeObject;
}
}, {
key: "create3DSphereFromNode",
value: function create3DSphereFromNode(sphereNode, material) {
var sphere = new this.THREE.SphereGeometry(sphereNode.radius, 20, 20);
// sphere.applyMatrix(new this.THREE.Matrix4().makeScale(-1,1,1));
var threeObject = new this.THREE.Mesh(sphere, material);
threeObject.position.set(sphereNode.position.x, sphereNode.position.y, sphereNode.position.z);
return threeObject;
}
}, {
key: "create3DCylinderFromNode",
value: function create3DCylinderFromNode(cylNode, material) {
var bottomBasePos = new this.THREE.Vector3(cylNode.position.x, cylNode.position.y, cylNode.position.z);
var topBasePos = new this.THREE.Vector3(cylNode.distal.x, cylNode.distal.y, cylNode.distal.z);
var axis = new this.THREE.Vector3();
axis.subVectors(topBasePos, bottomBasePos);
var c = new this.THREE.CylinderGeometry(cylNode.topRadius, cylNode.bottomRadius, axis.length(), 20, 1, false);
// shift it so one end rests on the origin
c.applyMatrix(new this.THREE.Matrix4().makeTranslation(0, axis.length() / 2, 0));
// rotate it the right way for lookAt to work
c.applyMatrix(new this.THREE.Matrix4().makeRotationX(Math.PI / 2));
// make a mesh with the geometry
var threeObject = new this.THREE.Mesh(c, material);
// make it point to where we want
threeObject.lookAt(axis);
// move base
threeObject.position.fromArray(bottomBasePos.toArray());
threeObject.geometry.verticesNeedUpdate = true;
return threeObject;
}
// TODO: Collada example
}, {
key: "loadColladaModelFromNode",
value: function loadColladaModelFromNode(node) {
var loader = this.loaders[Resources.COLLADA];
loader.options.convertUpAxis = true;
var scene = null;
var that = this;
loader.parse(node.collada, function (collada) {
scene = collada.scene;
scene.traverse(function (child) {
if (child instanceof that.THREE.Mesh) {
child.material.defaultColor = Resources.COLORS.DEFAULT;
child.material.defaultOpacity = Resources.OPACITY.DEFAULT;
child.material.wireframe = that.wireframe;
child.material.opacity = Resources.OPACITY.DEFAULT;
child.geometry.computeVertexNormals();
}
if (child instanceof that.THREE.SkinnedMesh) {
child.material.skinning = true;
child.material.defaultColor = Resources.COLORS.DEFAULT;
child.material.defaultOpacity = Resources.OPACITY.DEFAULT;
child.material.wireframe = that.wireframe;
child.material.opacity = Resources.OPACITY.DEFAULT;
child.geometry.computeVertexNormals();
}
});
});
return scene;
}
}, {
key: "loadThreeOBJModelFromNode",
value: function loadThreeOBJModelFromNode(node) {
var loader = this.loaders[Resources.OBJ];
var textureLoader = this.loaders['TextureLoader'];
var particleTexture = this.particleTexture ? this.particleTexture : textureLoader.load(particle);
var scene = loader.parse(this.parseBase64(node.obj), particleTexture);
var that = this;
scene.traverse(function (child) {
if (child instanceof that.THREE.Mesh) {
that.setThreeColor(child.material.color, Resources.COLORS.DEFAULT);
child.material.wireframe = that.wireframe;
child.material.defaultColor = Resources.COLORS.DEFAULT;
child.material.defaultOpacity = Resources.OPACITY.DEFAULT;
child.material.opacity = Resources.OPACITY.DEFAULT;
child.geometry.computeVertexNormals();
}
});
return scene;
}
}, {
key: "loadThreeGLTFModelFromNode",
value: function () {
var _loadThreeGLTFModelFromNode = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee9(node) {
var loader, gltfData, that;
return _regeneratorRuntime().wrap(function _callee9$(_context9) {
while (1) switch (_context9.prev = _context9.next) {
case 0:
loader = this.loaders[Resources.GLTF];
_context9.next = 3;
return this.modelParser(loader, this.parseBase64(node.gltf));
case 3:
gltfData = _context9.sent;
if (gltfData.scene.children.length === 1) {
that = this;
gltfData.scene.children[0].traverse(function (child) {
if (child instanceof that.THREE.Mesh) {
that.setThreeColor(child.material.color, Resources.COLORS.DEFAULT);
child.material.wireframe = that.wireframe;
child.material.defaultColor = Resources.COLORS.DEFAULT;
child.material.defaultOpacity = Resources.OPACITY.DEFAULT;
child.material.opacity = Resources.OPACITY.DEFAULT;
child.geometry.computeVertexNormals();
}
});
} else {
console.error("GEPPETTO Error - GLTF loaded more than one object in the scene.");
}
return _context9.abrupt("return", gltfData.scene.children[0]);
case 6:
case "end":
return _context9.stop();
}
}, _callee9, this);
}));
function loadThreeGLTFModelFromNode(_x15) {
return _loadThreeGLTFModelFromNode.apply(this, arguments);
}
return loadThreeGLTFModelFromNode;
}()
}, {
key: "loadThreeDRCModelFromNode",
value: function () {
var _loadThreeDRCModelFromNode = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee10(node) {
var dracoLoader, geometry;
return _regeneratorRuntime().wrap(function _callee10$(_context10) {
while (1) switch (_context10.prev = _context10.next) {
case 0:
dracoLoader = this.loaders[Resources.DRC];
_context10.next = 3;
return this.modelLoader(dracoLoader, node.drc);
case 3:
geometry = _context10.sent;
geometry.computeVertexNormals();
return _context10.abrupt("return", new this.THREE.Mesh(geometry, this.getMeshPhongMaterial()));
case 6:
case "end":
return _context10.stop();
}
}, _callee10, this);
}));
function loadThreeDRCModelFromNode(_x16) {
return _loadThreeDRCModelFromNode.apply(this, arguments);
}
return loadThreeDRCModelFromNode;
}()
}, {
key: "parseBase64",
value: function parseBase64(str) {
try {
return atob(str.split('base64,')[1]);
} catch (e) {
return str;
}
}
}, {
key: "modelLoader",
value: function modelLoader(loader, url) {
return new Promise(function (resolve, reject) {
loader.load(url, function (data) {
return resolve(data);
}, null, reject);
});
}
}, {
key: "modelParser",
value: function () {
var _modelParser = _asyncToGenerator(/*#__PURE__*/_regeneratorRuntime().mark(function _callee11(loader, data) {
var results;
return _regeneratorRuntime().wrap(function _callee11$(_context11) {
while (1) switch (_context11.prev = _context11.next) {
case 0:
_context11.next = 2;
return new Promise(function (resolve, reject) {
loader.parse(data, null, function (data) {
return resolve(data);
}, reject);
});
case 2:
results = _context11.sent;
return _context11.abrupt("return", results);
case 4:
case "end":
return _context11.stop();
}
}, _callee11);
}));
function modelParser(_x17, _x18) {
return _modelParser.apply(this, arguments);
}
return modelParser;
}()
}, {
key: "init3DObject",
value: function init3DObject(meshes, instance) {
var instancePath = instance.getInstancePath();
var position = instance.getPosition();
for (var m in meshes) {
var mesh = meshes[m];
mesh.instancePath = instancePath;
/*
* if the model file is specifying a position for the loaded meshes then we translate them here
*/
if (position != null) {
mesh.position.set(position.x, position.y, position.z);
}
this.meshes[instancePath] = mesh;
this.meshes[instancePath].visible = true;
this.meshes[instancePath].defaultOpacity = 1;
this.meshes[instancePath].input = false;
this.meshes[instancePath].output = false;
// Split anything that was splitted before
if (instancePath in this.splitMeshes) {
var splitMeshes = this.splitMeshes;
var elements = {};
for (var splitMesh in splitMeshes) {
if (splitMeshes[splitMesh].instancePath === instancePath && splitMesh !== instancePath) {
var visualObject = splitMesh.substring(instancePath.length + 1);
elements[visualObject] = '';
}
}
if (Object.keys(elements).length > 0) {
this.splitGroups(instance, elements);
}
}
this.calculateSceneMaxRadius(mesh);
this.calculateSceneComplexity(mesh);
}
}
}, {
key: "merge3DObjects",
value: function merge3DObjects(objArray, materials) {
var mergedMeshesPaths = [];
var ret = null;
var mergedLines;
var mergedMeshes;
var that = this;
objArray.forEach(function (obj) {
if (obj instanceof that.THREE.Line) {
if (mergedLines === undefined) {
mergedLines = new that.THREE.Geometry();
}
mergedLines.vertices.push(obj.geometry.vertices[0]);
mergedLines.vertices.push(obj.geometry.vertices[1]);
} else if (obj.geometry.type === 'Geometry') {
// This catches both Collada an OBJ
if (objArray.length > 1) {
throw Error('Merging of multiple OBJs or Colladas not supported');
} else {
ret = obj;
}
} else {
if (mergedMeshes === undefined) {
mergedMeshes = new that.THREE.Geometry();
}
obj.geometry.dynamic = true;
obj.geometry.verticesNeedUpdate = true;
obj.updateMatrix();
mergedMeshes.merge(obj.geometry, obj.matrix);
}
mergedMeshesPaths.push(obj.instancePath);
});
if (mergedLines === undefined) {
/*
* There are no line geometries, we just create a mesh for the merge of the solid geometries
* and apply the mesh material
*/
ret = new that.THREE.Mesh(mergedMeshes, materials.mesh);
} else {
ret = new that.THREE.LineSegments(mergedLines, materials.line);
if (mergedMeshes !== undefined) {
// we merge into a single mesh both types of geometries (from lines and 3D objects)
var tempmesh = new that.THREE.Mesh(mergedMeshes, materials.mesh);
ret.geometry.merge(tempmesh.geometry, tempmesh.matrix);
}
}
if (ret != null && !Array.isArray(ret)) {
ret.mergedMeshesPaths = mergedMeshesPaths;
}
return ret;
}
/**
* Split merged mesh into individual meshes
*
* instance - original instance
* groups - The groups that we need to split mesh into
* @param instance
* @param groupElements
*/
}, {
key: "splitGroups",
value: function splitGroups(instance, groupElements) {
if (!this.hasMesh(instance)) {
return;
}
var instancePath = instance.getInstancePath();
// retrieve the merged mesh
var mergedMesh = this.meshes[instancePath];
// create object to hold geometries used for merging objects in groups
var geometryGroups = {};
/*
* reset the aspect instance path group mesh, this is used to group visual objects that don't belong to any of the groups passed as parameter
*/
this.splitMeshes[instancePath] = null;
geometryGroups[instancePath] = new this.THREE.Geometry();
// create map of geometry groups for groups
for (var groupElement in groupElements) {
var groupName = "".concat(instancePath, ".").concat(groupElement);
var geometry = new this.THREE.Geometry();
geometry.groupMerge = true;
geometryGroups[groupName] = geometry;
}
// get map of all meshes that merged mesh was merging
var map = mergedMesh.mergedMeshesPaths;
/*
* flag for keep track what visual objects were added to group
* meshes already
*/
var added = false;
/*
* loop through individual meshes, add them to group, set new
* material to them
*/
for (var v in map) {
if (v !== undefined) {
var m = this.visualModelMap[map[v]];
Instances.getInstance(map[v].substring(0, map[v].lastIndexOf('.')));