potree-sdk/libs/three.js/loaders/dxf/dxf-parser.js

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                    break;
                case 45:
                    t.rowSpacing = a.value;
                    break;
                case 210:
                    t.extrusionDirection = c(e);
                    break;
                default:
                    i(t, a)
                }
                a = e.next()
            }
            return t
        }
        ,
        k.ForEntityName = "LINE",
        k.prototype.parseEntity = function(e, a) {
            var t = {
                type: a.value,
                vertices: []
            };
            for (a = e.next(); "EOF" !== a && 0 !== a.code; ) {
                switch (a.code) {
                case 10:
                    t.vertices.unshift(c(e));
                    break;
                case 11:
                    t.vertices.push(c(e));
                    break;
                case 210:
                    t.extrusionDirection = c(e);
                    break;
                case 100:
                    break;
                default:
                    i(t, a)
                }
                a = e.next()
            }
            return t
        }
        ,
        y.ForEntityName = "LWPOLYLINE",
        y.prototype.parseEntity = function(e, a) {
            var t = {
                type: a.value,
                vertices: []
            }
              , r = 0;
            for (a = e.next(); "EOF" !== a && 0 !== a.code; ) {
                switch (a.code) {
                case 38:
                    t.elevation = a.value;
                    break;
                case 39:
                    t.depth = a.value;
                    break;
                case 70:
                    t.shape = 1 == (1 & a.value),
                    t.hasContinuousLinetypePattern = 128 == (128 & a.value);
                    break;
                case 90:
                    r = a.value;
                    break;
                case 10: 
                    //t.vertices = x(r, e); 
                    //改,因有的文件有点问题，可能版本原因
                    t.vertices.push(...x(r, e))//有的文件同一个entity需要多次执行到这里，所以不能直接覆盖，要push
                    t.vertices = t.vertices.filter(e=>e.x!=void 0)//而且会出现空的vertix:{},所以排除下
                    break;
                case 43:
                    0 !== a.value && (t.width = a.value);
                    break;
                case 210:
                    t.extrusionDirectionX = a.value;
                    break;
                case 220:
                    t.extrusionDirectionY = a.value;
                    break;
                case 230:
                    t.extrusionDirectionZ = a.value;
                    break;
                default:
                    i(t, a)
                }
                a = e.next()
            }  
            return t
        }
        ,
        h.ForEntityName = "MTEXT",
        h.prototype.parseEntity = function(e, a) {
            var t = {
                type: a.value
            };
            for (a = e.next(); "EOF" !== a && 0 !== a.code; ) {
                switch (a.code) {
                case 3:
                case 1:
                    t.text ? t.text += a.value : t.text = a.value;
                    break;
                case 10:
                    t.position = c(e);
                    break;
                case 40:
                    t.height = a.value;
                    break;
                case 41:
                    t.width = a.value;
                    break;
                case 50:
                    t.rotation = a.value;
                    break;
                case 71:
                    t.attachmentPoint = a.value;
                    break;
                case 72:
                    t.drawingDirection = a.value;
                    break;
                default:
                    i(t, a)
                }
                a = e.next()
            }
            return t
        }
        ,
        g.ForEntityName = "POINT",
        g.prototype.parseEntity = function(e, a) {
            var t;
            for (t = {
                type: a.value
            },
            a = e.next(); "EOF" !== a && 0 !== a.code; ) {
                switch (a.code) {
                case 10:
                    t.position = c(e);
                    break;
                case 39:
                    t.thickness = a.value;
                    break;
                case 210:
                    t.extrusionDirection = c(e);
                    break;
                case 100:
                    break;
                default:
                    i(t, a)
                }
                a = e.next()
            }
            return t
        }
        ,
        E.ForEntityName = "VERTEX",
        E.prototype.parseEntity = function(e, a) {
            var t = {
                type: a.value
            };
            for (a = e.next(); "EOF" !== a && 0 !== a.code; ) {
                switch (a.code) {
                case 10:
                    t.x = a.value;
                    break;
                case 20:
                    t.y = a.value;
                    break;
                case 30:
                    t.z = a.value;
                    break;
                case 40:
                case 41:
                case 42:
                    0 != a.value && (t.bulge = a.value);
                    break;
                case 70:
                    t.curveFittingVertex = 0 != (1 & a.value),
                    t.curveFitTangent = 0 != (2 & a.value),
                    t.splineVertex = 0 != (8 & a.value),
                    t.splineControlPoint = 0 != (16 & a.value),
                    t.threeDPolylineVertex = 0 != (32 & a.value),
                    t.threeDPolylineMesh = 0 != (64 & a.value),
                    t.polyfaceMeshVertex = 0 != (128 & a.value);
                    break;
                case 50:
                case 71:
                    t.faceA = a.value;
                    break;
                case 72:
                    t.faceB = a.value;
                    break;
                case 73:
                    t.faceC = a.value;
                    break;
                case 74:
                    t.faceD = a.value;
                    break;
                default:
                    i(t, a)
                }
                a = e.next()
            }
            return t
        }
        ,
        w.ForEntityName = "POLYLINE",
        w.prototype.parseEntity = function(e, a) {
            var t = {
                type: a.value,
                vertices: []
            };
            for (a = e.next(); "EOF" !== a && 0 !== a.code; ) {
                switch (a.code) {
                case 10:
                case 20:
                case 30:
                case 39:
                    t.thickness = a.value;
                    break;
                case 40:
                case 41:
                    break;
                case 70:
                    t.shape = 0 != (1 & a.value),
                    t.includesCurveFitVertices = 0 != (2 & a.value),
                    t.includesSplineFitVertices = 0 != (4 & a.value),
                    t.is3dPolyline = 0 != (8 & a.value),
                    t.is3dPolygonMesh = 0 != (16 & a.value),
                    t.is3dPolygonMeshClosed = 0 != (32 & a.value),
                    t.isPolyfaceMesh = 0 != (64 & a.value),
                    t.hasContinuousLinetypePattern = 0 != (128 & a.value);
                    break;
                case 71:
                case 72:
                case 73:
                case 74:
                case 75:
                    break;
                case 210:
                    t.extrusionDirection = c(e);
                    break;
                default:
                    i(t, a)
                }
                a = e.next()
            }
            return t.vertices = function(e, a) {
                var t = new E
                  , r = [];
                for (; !e.isEOF(); )
                    if (0 === a.code)
                        if ("VERTEX" === a.value)
                            r.push(t.parseEntity(e, a)),
                            a = e.lastReadGroup;
                        else if ("SEQEND" === a.value) {
                            m(e, a);
                            break
                        }
                return r
            }(e, a),
            t
        }
        ,
        P.ForEntityName = "SOLID",
        P.prototype.parseEntity = function(e, a) {
            var t;
            for ((t = {
                type: a.value
            }).points = [],
            a = e.next(); "EOF" !== a && 0 !== a.code; ) {
                switch (a.code) {
                case 10:
                    t.points[0] = c(e);
                    break;
                case 11:
                    t.points[1] = c(e);
                    break;
                case 12:
                    t.points[2] = c(e);
                    break;
                case 13:
                    t.points[3] = c(e);
                    break;
                case 210:
                    t.extrusionDirection = c(e);
                    break;
                default:
                    i(t, a)
                }
                a = e.next()
            }
            return t
        }
        ,
        F.ForEntityName = "SPLINE",
        F.prototype.parseEntity = function(e, a) {
            var t;
            for (t = {
                type: a.value
            },
            a = e.next(); "EOF" !== a && 0 !== a.code; ) {
                switch (a.code) {
                case 10:
                    t.controlPoints || (t.controlPoints = []),
                    t.controlPoints.push(c(e));
                    break;
                case 11:
                    t.fitPoints || (t.fitPoints = []),
                    t.fitPoints.push(c(e));
                    break;
                case 12:
                    t.startTangent = c(e);
                    break;
                case 13:
                    t.endTangent = c(e);
                    break;
                case 40:
                    t.knotValues || (t.knotValues = []),
                    t.knotValues.push(a.value);
                    break;
                case 70:
                    0 != (1 & a.value) && (t.closed = !0),
                    0 != (2 & a.value) && (t.periodic = !0),
                    0 != (4 & a.value) && (t.rational = !0),
                    0 != (8 & a.value) && (t.planar = !0),
                    0 != (16 & a.value) && (t.planar = !0,
                    t.linear = !0);
                    break;
                case 71:
                    t.degreeOfSplineCurve = a.value;
                    break;
                case 72:
                    t.numberOfKnots = a.value;
                    break;
                case 73:
                    t.numberOfControlPoints = a.value;
                    break;
                case 74:
                    t.numberOfFitPoints = a.value;
                    break;
                case 210:
                    t.normalVector = c(e);
                    break;
                default:
                    i(t, a)
                }
                a = e.next()
            }
            return t
        }
        ,
        O.ForEntityName = "TEXT",
        O.prototype.parseEntity = function(e, a) {
            var t;
            for (t = {
                type: a.value
            },
            a = e.next(); "EOF" !== a && 0 !== a.code; ) {
                switch (a.code) {
                case 10:
                    t.startPoint = c(e);
                    break;
                case 11:
                    t.endPoint = c(e);
                    break;
                case 40:
                    t.textHeight = a.value;
                    break;
                case 41:
                    t.xScale = a.value;
                    break;
                case 50:
                    t.rotation = a.value;
                    break;
                case 1:
                    t.text = a.value;
                    break;
                case 72:
                    t.halign = a.value;
                    break;
                case 73:
                    t.valign = a.value;
                    break;
                default:
                    i(t, a)
                }
                a = e.next()
            }
            return t
        }
        ;
        var N = t(0);
        function T() {
            var e;
            this._entityHandlers = {},
            (e = this).registerEntityHandler(u),
            e.registerEntityHandler(l),
            e.registerEntityHandler(v),
            e.registerEntityHandler(d),
            e.registerEntityHandler(b),
            e.registerEntityHandler(p),
            e.registerEntityHandler(f),
            e.registerEntityHandler(k),
            e.registerEntityHandler(y),
            e.registerEntityHandler(h),
            e.registerEntityHandler(g),
            e.registerEntityHandler(w),
            e.registerEntityHandler(P),
            e.registerEntityHandler(F),
            e.registerEntityHandler(O)
        }
        function S(e) {
            N.debug("unhandled group " + L(e))
        }
        function L(e) {
            return e.code + ":" + e.value
        }
        N.setLevel("error"),
        T.prototype.parse = function(e, a) {
            throw new Error("read() not implemented. Use readSync()")
        }
        ,
        T.prototype.registerEntityHandler = function(e) {
            var a = new e;
            this._entityHandlers[e.ForEntityName] = a
        }
        ,
        T.prototype.parseSync = function(e) {
            return "string" == typeof e ? this._parse(e) : (console.error("Cannot read dxf source of type `" + typeof e),
            null)
        }
        ,
        T.prototype.parseStream = function(e, a) {
            var t = ""
              , r = this;
            e.on("data", function(e) {
                t += e
            }),
            e.on("end", function() {
                try {
                    var e = r._parse(t)
                } catch (e) {
                    return a(e)
                }
                a(null, e)
            }),
            e.on("error", function(e) {
                a(e)
            })
        }
        ,
        T.prototype._parse = function(e) {
            var a, t, n = {}, c = 0, i = e.split(/\r\n|\r|\n/g);
            if (!(a = new r(i)).hasNext())
                throw Error("Empty file");
            var u = this
              , s = function(e, a) {
                return t.code === e && t.value === a
            }
              , l = function() {
                var e = null
                  , r = null
                  , n = {};
                for (t = a.next(); ; ) {
                    if (s(0, "ENDSEC")) {
                        e && (n[e] = r);
                        break
                    }
                    9 === t.code ? (e && (n[e] = r),
                    e = t.value) : 10 === t.code ? r = {
                        x: t.value
                    } : 20 === t.code ? r.y = t.value : 30 === t.code ? r.z = t.value : r = t.value,
                    t = a.next()
                }
                return t = a.next(),
                n
            }
              , v = function() {
                var e, r = {};
                for (t = a.next(); "EOF" !== t.value && !s(0, "ENDSEC"); )
                    s(0, "BLOCK") ? (N.debug("block {"),
                    e = d(),
                    N.debug("}"),
                    x(e),
                    e.name ? r[e.name] = e : N.error('block with handle "' + e.handle + '" is missing a name.')) : (S(t),
                    t = a.next());
                return r
            }
              , d = function() {
                var e = {};
                for (t = a.next(); "EOF" !== t.value; ) {
                    switch (t.code) {
                    case 1:
                        e.xrefPath = t.value,
                        t = a.next();
                        break;
                    case 2:
                        e.name = t.value,
                        t = a.next();
                        break;
                    case 3:
                        e.name2 = t.value,
                        t = a.next();
                        break;
                    case 5:
                        e.handle = t.value,
                        t = a.next();
                        break;
                    case 8:
                        e.layer = t.value,
                        t = a.next();
                        break;
                    case 10:
                        e.position = y(),
                        t = a.next();
                        break;
                    case 67:
                        e.paperSpace = !(!t.value || 1 != t.value),
                        t = a.next();
                        break;
                    case 70:
                        0 != t.value && (e.type = t.value),
                        t = a.next();
                        break;
                    case 100:
                        t = a.next();
                        break;
                    case 330:
                        e.ownerHandle = t.value,
                        t = a.next();
                        break;
                    case 0:
                        if ("ENDBLK" == t.value)
                            break;
                        e.entities = k(!0);
                        break;
                    default:
                        S(t),
                        t = a.next()
                    }
                    if (s(0, "ENDBLK")) {
                        t = a.next();
                        break
                    }
                }
                return e
            }
              , b = function() {
                var e = {};
                for (t = a.next(); "EOF" !== t.value && !s(0, "ENDSEC"); ) {
                    s(0, "TABLE") ? (t = a.next(),
                    f[t.value] ? (N.debug(t.value + " Table {"),
                    e[f[t.value].tableName] = p(),
                    N.debug("}")) : N.debug("Unhandled Table " + t.value)) : t = a.next()
                }
                return t = a.next(),
                e
            };
            var p = function() {
                var e, r = f[t.value], n = {}, o = 0;
                for (t = a.next(); !s(0, "ENDTAB"); )
                    switch (t.code) {
                    case 5:
                        n.handle = t.value,
                        t = a.next();
                        break;
                    case 330:
                        n.ownerHandle = t.value,
                        t = a.next();
                        break;
                    case 100:
                        "AcDbSymbolTable" === t.value ? t = a.next() : (S(t),
                        t = a.next());
                        break;
                    case 70:
                        o = t.value,
                        t = a.next();
                        break;
                    case 0:
                        t.value === r.dxfSymbolName ? n[r.tableRecordsProperty] = r.parseTableRecords() : (S(t),
                        t = a.next());
                        break;
                    default:
                        S(t),
                        t = a.next()
                    }
                var c = n[r.tableRecordsProperty];
                return c && (c.constructor === Array ? e = c.length : "object" == typeof c && (e = Object.keys(c).length),
                o !== e && N.warn("Parsed " + e + " " + r.dxfSymbolName + "'s but expected " + o)),
                t = a.next(),
                n
            }
              , f = {
                VPORT: {
                    tableRecordsProperty: "viewPorts",
                    tableName: "viewPort",
                    dxfSymbolName: "VPORT",
                    parseTableRecords: function() {
                        var e = []
                          , r = {};
                        for (N.debug("ViewPort {"),
                        t = a.next(); !s(0, "ENDTAB"); )
                            switch (t.code) {
                            case 2:
                                r.name = t.value,
                                t = a.next();
                                break;
                            case 10:
                                r.lowerLeftCorner = y(),
                                t = a.next();
                                break;
                            case 11:
                                r.upperRightCorner = y(),
                                t = a.next();
                                break;
                            case 12:
                                r.center = y(),
                                t = a.next();
                                break;
                            case 13:
                                r.snapBasePoint = y(),
                                t = a.next();
                                break;
                            case 14:
                                r.snapSpacing = y(),
                                t = a.next();
                                break;
                            case 15:
                                r.gridSpacing = y(),
                                t = a.next();
                                break;
                            case 16:
                                r.viewDirectionFromTarget = y(),
                                t = a.next();
                                break;
                            case 17:
                                r.viewTarget = y(),
                                t = a.next();
                                break;
                            case 42:
                                r.lensLength = t.value,
                                t = a.next();
                                break;
                            case 43:
                                r.frontClippingPlane = t.value,
                                t = a.next();
                                break;
                            case 44:
                                r.backClippingPlane = t.value,
                                t = a.next();
                                break;
                            case 45:
                                r.viewHeight = t.value,
                                t = a.next();
                                break;
                            case 50:
                                r.snapRotationAngle = t.value,
                                t = a.next();
                                break;
                            case 51:
                                r.viewTwistAngle = t.value,
                                t = a.next();
                                break;
                            case 79:
                                r.orthographicType = t.value,
                                t = a.next();
                                break;
                            case 110:
                                r.ucsOrigin = y(),
                                t = a.next();
                                break;
                            case 111:
                                r.ucsXAxis = y(),
                                t = a.next();
                                break;
                            case 112:
                                r.ucsYAxis = y(),
                                t = a.next();
                                break;
                            case 110:
                                r.ucsOrigin = y(),
                                t = a.next();
                                break;
                            case 281:
                                r.renderMode = t.value,
                                t = a.next();
                                break;
                            case 281:
                                r.defaultLightingType = t.value,
                                t = a.next();
                                break;
                            case 292:
                                r.defaultLightingOn = t.value,
                                t = a.next();
                                break;
                            case 330:
                                r.ownerHandle = t.value,
                                t = a.next();
                                break;
                            case 63:
                            case 421:
                            case 431:
                                r.ambientColor = t.value,
                                t = a.next();
                                break;
                            case 0:
                                "VPORT" === t.value && (N.debug("}"),
                                e.push(r),
                                N.debug("ViewPort {"),
                                r = {},
                                t = a.next());
                                break;
                            default:
                                S(t),
                                t = a.next()
                            }
                        return N.debug("}"),
                        e.push(r),
                        e
                    }
                },
                LTYPE: {
                    tableRecordsProperty: "lineTypes",
                    tableName: "lineType",
                    dxfSymbolName: "LTYPE",
                    parseTableRecords: function() {
                        var e, r, n = {}, o = {};
                        for (N.debug("LType {"),
                        t = a.next(); !s(0, "ENDTAB"); )
                            switch (t.code) {
                            case 2:
                                o.name = t.value,
                                e = t.value,
                                t = a.next();
                                break;
                            case 3:
                                o.description = t.value,
                                t = a.next();
                                break;
                            case 73:
                                (r = t.value) > 0 && (o.pattern = []),
                                t = a.next();
                                break;
                            case 40:
                                o.patternLength = t.value,
                                t = a.next();
                                break;
                            case 49:
                                o.pattern.push(t.value),
                                t = a.next();
                                break;
                            case 0:
                                N.debug("}"),
                                r > 0 && r !== o.pattern.length && N.warn("lengths do not match on LTYPE pattern"),
                                n[e] = o,
                                o = {},
                                N.debug("LType {"),
                                t = a.next();
                                break;
                            default:
                                t = a.next()
                            }
                        return N.debug("}"),
                        n[e] = o,
                        n
                    }
                },
                LAYER: {
                    tableRecordsProperty: "layers",
                    tableName: "layer",
                    dxfSymbolName: "LAYER",
                    parseTableRecords: function() {
                        var e, r, n = {}, c = {};
                        for (N.debug("Layer {"),
                        t = a.next(); !s(0, "ENDTAB"); )
                            switch (t.code) {
                            case 2:
                                c.name = t.value,
                                e = t.value,
                                t = a.next();
                                break;
                            case 62:
                                c.visible = t.value >= 0,
                                c.colorIndex = Math.abs(t.value),
                                c.color = (r = c.colorIndex,
                                o[r]),
                                t = a.next();
                                break;
                            case 70:
                                c.frozen = 0 != (1 & t.value) || 0 != (2 & t.value),
                                t = a.next();
                                break;
                            case 0:
                                "LAYER" === t.value && (N.debug("}"),
                                n[e] = c,
                                N.debug("Layer {"),
                                c = {},
                                e = void 0,
                                t = a.next());
                                break;
                            default:
                                S(t),
                                t = a.next()
                            }
                        return N.debug("}"),
                        n[e] = c,
                        n
                    }
                }
            }
              , k = function(e) {
                var r = []
                  , n = e ? "ENDBLK" : "ENDSEC";
                for (e || (t = a.next()); ; )
                    if (0 === t.code) {
                        if (t.value === n)
                            break;
                        var o, c = u._entityHandlers[t.value];
                        if (null == c) {
                            N.warn("Unhandled entity " + t.value),
                            t = a.next();
                            continue
                        }
                        N.debug(t.value + " {"),
                        o = c.parseEntity(a, t),
                        t = a.lastReadGroup,
                        N.debug("}"),
                        x(o),
                        r.push(o)
                    } else
                        t = a.next();
                return "ENDSEC" == n && (t = a.next()),
                r
            }
              , y = function() {
                var e = {}
                  , r = t.code;
                if (e.x = t.value,
                r += 10,
                (t = a.next()).code != r)
                    throw new Error("Expected code for point value to be " + r + " but got " + t.code + ".");
                return e.y = t.value,
                r += 10,
                (t = a.next()).code != r ? (a.rewind(),
                e) : (e.z = t.value,
                e)
            }
              , x = function(e) {
                if (!e)
                    throw new TypeError("entity cannot be undefined or null");
                e.handle || (e.handle = c++)
            };
            return function() {
                for (t = a.next(); !a.isEOF(); )
                    if (0 === t.code && "SECTION" === t.value) {
                        if (2 !== (t = a.next()).code) {
                            console.error("Unexpected code %s after 0:SECTION", L(t)),
                            t = a.next();
                            continue
                        }
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                        n.blocks = v(),
                        N.debug("<")) : "ENTITIES" === t.value ? (N.debug("> ENTITIES"),
                        n.entities = k(!1),
                        N.debug("<")) : "TABLES" === t.value ? (N.debug("> TABLES"),
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        }
        ;
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    ]).default
});