Babylon.js/dist/preview release/loaders/babylon.stlFileLoader.js

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/***/ "../node_modules/webpack/buildin/global.js":
/*!*************************************************!*\
  !*** ../node_modules/webpack/buildin/global.js ***!
  \*************************************************/
/*! no static exports found */
/***/ (function(module, exports) {

var g;

// This works in non-strict mode
g = (function() {
	return this;
})();

try {
	// This works if eval is allowed (see CSP)
	g = g || Function("return this")() || (1, eval)("this");
} catch (e) {
	// This works if the window reference is available
	if (typeof window === "object") g = window;
}

// g can still be undefined, but nothing to do about it...
// We return undefined, instead of nothing here, so it's
// easier to handle this case. if(!global) { ...}

module.exports = g;


/***/ }),

/***/ "./legacy/legacy-stlFileLoader.ts":
/*!****************************************!*\
  !*** ./legacy/legacy-stlFileLoader.ts ***!
  \****************************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(global) {
function __export(m) {
    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
}
Object.defineProperty(exports, "__esModule", { value: true });
var Loaders = __webpack_require__(/*! ../src/STL */ "./src/STL/index.ts");
/**
 * This is the entry point for the UMD module.
 * The entry point for a future ESM package should be index.ts
 */
var globalObject = (typeof global !== 'undefined') ? global : ((typeof window !== 'undefined') ? window : undefined);
if (typeof globalObject !== "undefined") {
    for (var key in Loaders) {
        globalObject.BABYLON[key] = Loaders[key];
    }
}
__export(__webpack_require__(/*! ../src/STL */ "./src/STL/index.ts"));

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../node_modules/webpack/buildin/global.js */ "../node_modules/webpack/buildin/global.js")))

/***/ }),

/***/ "./src/STL/index.ts":
/*!**************************!*\
  !*** ./src/STL/index.ts ***!
  \**************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

function __export(m) {
    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
}
Object.defineProperty(exports, "__esModule", { value: true });
__export(__webpack_require__(/*! ./stlFileLoader */ "./src/STL/stlFileLoader.ts"));


/***/ }),

/***/ "./src/STL/stlFileLoader.ts":
/*!**********************************!*\
  !*** ./src/STL/stlFileLoader.ts ***!
  \**********************************/
/*! no static exports found */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

Object.defineProperty(exports, "__esModule", { value: true });
var babylonjs_1 = __webpack_require__(/*! babylonjs */ "babylonjs");
/**
 * STL file type loader.
 * This is a babylon scene loader plugin.
 */
var STLFileLoader = /** @class */ (function () {
    function STLFileLoader() {
        /** @hidden */
        this.solidPattern = /solid (\S*)([\S\s]*)endsolid[ ]*(\S*)/g;
        /** @hidden */
        this.facetsPattern = /facet([\s\S]*?)endfacet/g;
        /** @hidden */
        this.normalPattern = /normal[\s]+([\-+]?[0-9]+\.?[0-9]*([eE][\-+]?[0-9]+)?)+[\s]+([\-+]?[0-9]*\.?[0-9]+([eE][\-+]?[0-9]+)?)+[\s]+([\-+]?[0-9]*\.?[0-9]+([eE][\-+]?[0-9]+)?)+/g;
        /** @hidden */
        this.vertexPattern = /vertex[\s]+([\-+]?[0-9]+\.?[0-9]*([eE][\-+]?[0-9]+)?)+[\s]+([\-+]?[0-9]*\.?[0-9]+([eE][\-+]?[0-9]+)?)+[\s]+([\-+]?[0-9]*\.?[0-9]+([eE][\-+]?[0-9]+)?)+/g;
        /**
         * Defines the name of the plugin.
         */
        this.name = "stl";
        /**
         * Defines the extensions the stl loader is able to load.
         * force data to come in as an ArrayBuffer
         * we'll convert to string if it looks like it's an ASCII .stl
         */
        this.extensions = {
            ".stl": { isBinary: true },
        };
    }
    /**
     * Import meshes into a scene.
     * @param meshesNames An array of mesh names, a single mesh name, or empty string for all meshes that filter what meshes are imported
     * @param scene The scene to import into
     * @param data The data to import
     * @param rootUrl The root url for scene and resources
     * @param meshes The meshes array to import into
     * @param particleSystems The particle systems array to import into
     * @param skeletons The skeletons array to import into
     * @param onError The callback when import fails
     * @returns True if successful or false otherwise
     */
    STLFileLoader.prototype.importMesh = function (meshesNames, scene, data, rootUrl, meshes, particleSystems, skeletons) {
        var matches;
        if (typeof data !== "string") {
            if (this._isBinary(data)) {
                // binary .stl
                var babylonMesh = new babylonjs_1.Mesh("stlmesh", scene);
                this._parseBinary(babylonMesh, data);
                if (meshes) {
                    meshes.push(babylonMesh);
                }
                return true;
            }
            // ASCII .stl
            // convert to string
            var array_buffer = new Uint8Array(data);
            var str = '';
            for (var i = 0; i < data.byteLength; i++) {
                str += String.fromCharCode(array_buffer[i]); // implicitly assumes little-endian
            }
            data = str;
        }
        //if arrived here, data is a string, containing the STLA data.
        while (matches = this.solidPattern.exec(data)) {
            var meshName = matches[1];
            var meshNameFromEnd = matches[3];
            if (meshName != meshNameFromEnd) {
                babylonjs_1.Tools.Error("Error in STL, solid name != endsolid name");
                return false;
            }
            // check meshesNames
            if (meshesNames && meshName) {
                if (meshesNames instanceof Array) {
                    if (!meshesNames.indexOf(meshName)) {
                        continue;
                    }
                }
                else {
                    if (meshName !== meshesNames) {
                        continue;
                    }
                }
            }
            // stl mesh name can be empty as well
            meshName = meshName || "stlmesh";
            var babylonMesh = new babylonjs_1.Mesh(meshName, scene);
            this._parseASCII(babylonMesh, matches[2]);
            if (meshes) {
                meshes.push(babylonMesh);
            }
        }
        return true;
    };
    /**
     * Load into a scene.
     * @param scene The scene to load into
     * @param data The data to import
     * @param rootUrl The root url for scene and resources
     * @param onError The callback when import fails
     * @returns true if successful or false otherwise
     */
    STLFileLoader.prototype.load = function (scene, data, rootUrl) {
        var result = this.importMesh(null, scene, data, rootUrl, null, null, null);
        if (result) {
            scene.createDefaultCameraOrLight();
        }
        return result;
    };
    /**
     * Load into an asset container.
     * @param scene The scene to load into
     * @param data The data to import
     * @param rootUrl The root url for scene and resources
     * @param onError The callback when import fails
     * @returns The loaded asset container
     */
    STLFileLoader.prototype.loadAssetContainer = function (scene, data, rootUrl, onError) {
        var container = new babylonjs_1.AssetContainer(scene);
        this.importMesh(null, scene, data, rootUrl, container.meshes, null, null);
        container.removeAllFromScene();
        return container;
    };
    STLFileLoader.prototype._isBinary = function (data) {
        // check if file size is correct for binary stl
        var faceSize, nFaces, reader;
        reader = new DataView(data);
        faceSize = (32 / 8 * 3) + ((32 / 8 * 3) * 3) + (16 / 8);
        nFaces = reader.getUint32(80, true);
        if (80 + (32 / 8) + (nFaces * faceSize) === reader.byteLength) {
            return true;
        }
        // check characters higher than ASCII to confirm binary
        var fileLength = reader.byteLength;
        for (var index = 0; index < fileLength; index++) {
            if (reader.getUint8(index) > 127) {
                return true;
            }
        }
        return false;
    };
    STLFileLoader.prototype._parseBinary = function (mesh, data) {
        var reader = new DataView(data);
        var faces = reader.getUint32(80, true);
        var dataOffset = 84;
        var faceLength = 12 * 4 + 2;
        var offset = 0;
        var positions = new Float32Array(faces * 3 * 3);
        var normals = new Float32Array(faces * 3 * 3);
        var indices = new Uint32Array(faces * 3);
        var indicesCount = 0;
        for (var face = 0; face < faces; face++) {
            var start = dataOffset + face * faceLength;
            var normalX = reader.getFloat32(start, true);
            var normalY = reader.getFloat32(start + 4, true);
            var normalZ = reader.getFloat32(start + 8, true);
            for (var i = 1; i <= 3; i++) {
                var vertexstart = start + i * 12;
                // ordering is intentional to match ascii import
                positions[offset] = reader.getFloat32(vertexstart, true);
                positions[offset + 2] = reader.getFloat32(vertexstart + 4, true);
                positions[offset + 1] = reader.getFloat32(vertexstart + 8, true);
                normals[offset] = normalX;
                normals[offset + 2] = normalY;
                normals[offset + 1] = normalZ;
                offset += 3;
            }
            indices[indicesCount] = indicesCount++;
            indices[indicesCount] = indicesCount++;
            indices[indicesCount] = indicesCount++;
        }
        mesh.setVerticesData(babylonjs_1.VertexBuffer.PositionKind, positions);
        mesh.setVerticesData(babylonjs_1.VertexBuffer.NormalKind, normals);
        mesh.setIndices(indices);
        mesh.computeWorldMatrix(true);
    };
    STLFileLoader.prototype._parseASCII = function (mesh, solidData) {
        var positions = [];
        var normals = [];
        var indices = [];
        var indicesCount = 0;
        //load facets, ignoring loop as the standard doesn't define it can contain more than vertices
        var matches;
        while (matches = this.facetsPattern.exec(solidData)) {
            var facet = matches[1];
            //one normal per face
            var normalMatches = this.normalPattern.exec(facet);
            this.normalPattern.lastIndex = 0;
            if (!normalMatches) {
                continue;
            }
            var normal = [Number(normalMatches[1]), Number(normalMatches[5]), Number(normalMatches[3])];
            var vertexMatch;
            while (vertexMatch = this.vertexPattern.exec(facet)) {
                positions.push(Number(vertexMatch[1]), Number(vertexMatch[5]), Number(vertexMatch[3]));
                normals.push(normal[0], normal[1], normal[2]);
            }
            indices.push(indicesCount++, indicesCount++, indicesCount++);
            this.vertexPattern.lastIndex = 0;
        }
        this.facetsPattern.lastIndex = 0;
        mesh.setVerticesData(babylonjs_1.VertexBuffer.PositionKind, positions);
        mesh.setVerticesData(babylonjs_1.VertexBuffer.NormalKind, normals);
        mesh.setIndices(indices);
        mesh.computeWorldMatrix(true);
    };
    return STLFileLoader;
}());
exports.STLFileLoader = STLFileLoader;
if (babylonjs_1.SceneLoader) {
    babylonjs_1.SceneLoader.RegisterPlugin(new STLFileLoader());
}


/***/ }),

/***/ "babylonjs":
/*!****************************************************************************************************!*\
  !*** external {"root":"BABYLON","commonjs":"babylonjs","commonjs2":"babylonjs","amd":"babylonjs"} ***!
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/*! no static exports found */
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module.exports = __WEBPACK_EXTERNAL_MODULE_babylonjs__;

/***/ })

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