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well-known-parser

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A WKT/WKB/EWKT/EWKB/TWKB/GeoJSON parser and serializer

github.com/thiemok/well-known-parser

thiemok/well-known-parser

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{"version":3,"file":"well-known-parser4.cjs","sources":["../src/point.ts"],"sourcesContent":["import { Geometry } from './geometry';\nimport type { Coordinates, GeometryOptions } from './types';\nimport { GEOMETRY_TYPES } from './constants';\nimport { BinaryWriter } from './binarywriter';\nimport * as ZigZag from './zigzag';\nimport type { Point as GeoJSONPoint } from 'geojson';\n\nexport class Point extends Geometry {\n x: number;\n y: number;\n z: number | undefined;\n m: number | undefined;\n\n constructor(x?: number, y?: number, z?: number, m?: number, srid?: number) {\n super();\n\n this.x = x;\n this.y = y;\n this.z = z;\n this.m = m;\n this.srid = srid;\n\n this.hasZ = typeof this.z !== 'undefined';\n this.hasM = typeof this.m !== 'undefined';\n }\n\n static Z(x: number, y: number, z: number, srid?: number): Point {\n const point = new Point(x, y, z, undefined, srid);\n point.hasZ = true;\n return point;\n }\n\n static M(x: number, y: number, m: number, srid?: number): Point {\n const point = new Point(x, y, undefined, m, srid);\n point.hasM = true;\n return point;\n }\n\n static ZM(x: number, y: number, z: number, m: number, srid?: number): Point {\n const point = new Point(x, y, z, m, srid);\n point.hasZ = true;\n point.hasM = true;\n return point;\n }\n\n toWkt(isNested: boolean = false): string {\n if (isNested) return this.getWktCoordinate();\n\n if (\n typeof this.x === 'undefined' &&\n typeof this.y === 'undefined' &&\n typeof this.z === 'undefined' &&\n typeof this.m === 'undefined'\n ) {\n return this.getWktType(GEOMETRY_TYPES.Point.wkt, true);\n }\n\n return this.getWktType(GEOMETRY_TYPES.Point.wkt, false) + '(' + this.getWktCoordinate() + ')';\n }\n\n private getWktCoordinate(): string {\n let coordinates = `${this.x} ${this.y}`;\n\n if (this.hasZ) {\n coordinates += ` ${this.z}`;\n }\n if (this.hasM) {\n coordinates += ` ${this.m}`;\n }\n\n return coordinates;\n }\n\n toWkb(parentOptions?: GeometryOptions, isNested: boolean = false): Buffer {\n const wkb = new BinaryWriter(this.getWkbSize(isNested));\n\n if (!isNested) {\n wkb.writeInt8(1);\n this.writeWkbType(wkb, GEOMETRY_TYPES.Point.wkb, parentOptions);\n }\n\n if (typeof this.x === 'undefined' && typeof this.y === 'undefined') {\n wkb.writeDoubleLE(NaN);\n wkb.writeDoubleLE(NaN);\n\n if (this.hasZ) {\n wkb.writeDoubleLE(NaN);\n }\n if (this.hasM) {\n wkb.writeDoubleLE(NaN);\n }\n } else {\n wkb.writeDoubleLE(this.x);\n wkb.writeDoubleLE(this.y);\n\n if (this.hasZ && this.z !== undefined) {\n wkb.writeDoubleLE(this.z);\n }\n if (this.hasM && this.m !== undefined) {\n wkb.writeDoubleLE(this.m);\n }\n }\n\n return wkb.buffer;\n }\n\n toTwkb(previousPoint?: Point, isNested: boolean = false): Buffer {\n const twkb = new BinaryWriter(0, true);\n\n const precision = Geometry.getTwkbPrecision(5, 0, 0);\n const isEmpty = typeof this.x === 'undefined' && typeof this.y === 'undefined';\n\n if (!isNested) {\n this.writeTwkbHeader(twkb, GEOMETRY_TYPES.Point.wkb, precision, isEmpty);\n }\n\n if (isEmpty) {\n return twkb.buffer;\n }\n\n const x = this.x * precision.xyFactor;\n const y = this.y * precision.xyFactor;\n\n // Use 0 as default value if z or m is undefined\n const z = this.hasZ ? (this.z ?? 0) * precision.zFactor : 0;\n const m = this.hasM ? (this.m ?? 0) * precision.mFactor : 0;\n\n // Write delta from previous point\n twkb.writeVarInt(ZigZag.encode(x - (previousPoint?.x ?? 0)));\n twkb.writeVarInt(ZigZag.encode(y - (previousPoint?.y ?? 0)));\n\n if (this.hasZ) {\n // Use 0 as default if z is undefined in previous point\n const prevZ = previousPoint?.z ?? 0;\n twkb.writeVarInt(ZigZag.encode(z - prevZ));\n }\n\n if (this.hasM) {\n // Use 0 as default if m is undefined in previous point\n const prevM = previousPoint?.m ?? 0;\n twkb.writeVarInt(ZigZag.encode(m - prevM));\n }\n\n if (previousPoint) {\n // Update the previous point with the current values\n previousPoint.x = x;\n previousPoint.y = y;\n\n if (this.hasZ) {\n previousPoint.z = z;\n }\n\n if (this.hasM) {\n previousPoint.m = m;\n }\n }\n\n return twkb.buffer;\n }\n\n getWkbSize(isNested: boolean = false): number {\n let size = 8 + 8;\n\n if (!isNested) {\n size += 1 + 4;\n }\n\n if (this.hasZ) {\n size += 8;\n }\n if (this.hasM) {\n size += 8;\n }\n\n return size;\n }\n\n toGeoJSON(): GeoJSONPoint;\n toGeoJSON(isNested: true): Coordinates<GeoJSONPoint>;\n toGeoJSON(isNested: boolean = false): GeoJSONPoint | Coordinates<GeoJSONPoint> {\n let coordinates: number[];\n if (typeof this.x === 'undefined' && typeof this.y === 'undefined') {\n coordinates = [];\n } else if (typeof this.z !== 'undefined') {\n coordinates = [this.x, this.y, this.z];\n } else {\n coordinates = [this.x, this.y];\n }\n\n if (isNested) return coordinates;\n\n return {\n type: GEOMETRY_TYPES.Point.geoJSON,\n coordinates,\n };\n }\n}\n"],"names":["Point","Geometry","x","y","z","m","srid","point","isNested","GEOMETRY_TYPES","coordinates","parentOptions","wkb","BinaryWriter","previousPoint","twkb","precision","isEmpty","ZigZag.encode","prevZ","prevM","size"],"mappings":"gPAOO,MAAMA,UAAcC,EAAAA,QAAS,CAMlC,YAAYC,EAAYC,EAAYC,EAAYC,EAAYC,EAAe,CACzE,MAAA,EAEA,KAAK,EAAIJ,EACT,KAAK,EAAIC,EACT,KAAK,EAAIC,EACT,KAAK,EAAIC,EACT,KAAK,KAAOC,EAEZ,KAAK,KAAO,OAAO,KAAK,EAAM,IAC9B,KAAK,KAAO,OAAO,KAAK,EAAM,GAChC,CAEA,OAAO,EAAEJ,EAAWC,EAAWC,EAAWE,EAAsB,CAC9D,MAAMC,EAAQ,IAAIP,EAAME,EAAGC,EAAGC,EAAG,OAAWE,CAAI,EAChD,OAAAC,EAAM,KAAO,GACNA,CACT,CAEA,OAAO,EAAEL,EAAWC,EAAWE,EAAWC,EAAsB,CAC9D,MAAMC,EAAQ,IAAIP,EAAME,EAAGC,EAAG,OAAWE,EAAGC,CAAI,EAChD,OAAAC,EAAM,KAAO,GACNA,CACT,CAEA,OAAO,GAAGL,EAAWC,EAAWC,EAAWC,EAAWC,EAAsB,CAC1E,MAAMC,EAAQ,IAAIP,EAAME,EAAGC,EAAGC,EAAGC,EAAGC,CAAI,EACxC,OAAAC,EAAM,KAAO,GACbA,EAAM,KAAO,GACNA,CACT,CAEA,MAAMC,EAAoB,GAAe,CACvC,OAAIA,EAAiB,KAAK,iBAAA,EAGxB,OAAO,KAAK,EAAM,KAClB,OAAO,KAAK,EAAM,KAClB,OAAO,KAAK,EAAM,KAClB,OAAO,KAAK,EAAM,IAEX,KAAK,WAAWC,EAAAA,eAAe,MAAM,IAAK,EAAI,EAGhD,KAAK,WAAWA,EAAAA,eAAe,MAAM,IAAK,EAAK,EAAI,IAAM,KAAK,iBAAA,EAAqB,GAC5F,CAEQ,kBAA2B,CACjC,IAAIC,EAAc,GAAG,KAAK,CAAC,IAAI,KAAK,CAAC,GAErC,OAAI,KAAK,OACPA,GAAe,IAAI,KAAK,CAAC,IAEvB,KAAK,OACPA,GAAe,IAAI,KAAK,CAAC,IAGpBA,CACT,CAEA,MAAMC,EAAiCH,EAAoB,GAAe,CACxE,MAAMI,EAAM,IAAIC,EAAAA,aAAa,KAAK,WAAWL,CAAQ,CAAC,EAEtD,OAAKA,IACHI,EAAI,UAAU,CAAC,EACf,KAAK,aAAaA,EAAKH,EAAAA,eAAe,MAAM,IAAKE,CAAa,GAG5D,OAAO,KAAK,EAAM,KAAe,OAAO,KAAK,EAAM,KACrDC,EAAI,cAAc,GAAG,EACrBA,EAAI,cAAc,GAAG,EAEjB,KAAK,MACPA,EAAI,cAAc,GAAG,EAEnB,KAAK,MACPA,EAAI,cAAc,GAAG,IAGvBA,EAAI,cAAc,KAAK,CAAC,EACxBA,EAAI,cAAc,KAAK,CAAC,EAEpB,KAAK,MAAQ,KAAK,IAAM,QAC1BA,EAAI,cAAc,KAAK,CAAC,EAEtB,KAAK,MAAQ,KAAK,IAAM,QAC1BA,EAAI,cAAc,KAAK,CAAC,GAIrBA,EAAI,MACb,CAEA,OAAOE,EAAuBN,EAAoB,GAAe,CAC/D,MAAMO,EAAO,IAAIF,eAAa,EAAG,EAAI,EAE/BG,EAAYf,EAAAA,SAAS,iBAAiB,EAAG,EAAG,CAAC,EAC7CgB,EAAU,OAAO,KAAK,EAAM,KAAe,OAAO,KAAK,EAAM,IAMnE,GAJKT,GACH,KAAK,gBAAgBO,EAAMN,EAAAA,eAAe,MAAM,IAAKO,EAAWC,CAAO,EAGrEA,EACF,OAAOF,EAAK,OAGd,MAAMb,EAAI,KAAK,EAAIc,EAAU,SACvBb,EAAI,KAAK,EAAIa,EAAU,SAGvBZ,EAAI,KAAK,MAAQ,KAAK,GAAK,GAAKY,EAAU,QAAU,EACpDX,EAAI,KAAK,MAAQ,KAAK,GAAK,GAAKW,EAAU,QAAU,EAM1D,GAHAD,EAAK,YAAYG,SAAchB,GAAKY,GAAe,GAAK,EAAE,CAAC,EAC3DC,EAAK,YAAYG,SAAcf,GAAKW,GAAe,GAAK,EAAE,CAAC,EAEvD,KAAK,KAAM,CAEb,MAAMK,EAAQL,GAAe,GAAK,EAClCC,EAAK,YAAYG,EAAAA,OAAcd,EAAIe,CAAK,CAAC,CAC3C,CAEA,GAAI,KAAK,KAAM,CAEb,MAAMC,EAAQN,GAAe,GAAK,EAClCC,EAAK,YAAYG,EAAAA,OAAcb,EAAIe,CAAK,CAAC,CAC3C,CAEA,OAAIN,IAEFA,EAAc,EAAIZ,EAClBY,EAAc,EAAIX,EAEd,KAAK,OACPW,EAAc,EAAIV,GAGhB,KAAK,OACPU,EAAc,EAAIT,IAIfU,EAAK,MACd,CAEA,WAAWP,EAAoB,GAAe,CAC5C,IAAIa,EAAO,GAEX,OAAKb,IACHa,GAAQ,GAGN,KAAK,OACPA,GAAQ,GAEN,KAAK,OACPA,GAAQ,GAGHA,CACT,CAIA,UAAUb,EAAoB,GAAiD,CAC7E,IAAIE,EASJ,OARI,OAAO,KAAK,EAAM,KAAe,OAAO,KAAK,EAAM,IACrDA,EAAc,CAAA,EACL,OAAO,KAAK,EAAM,IAC3BA,EAAc,CAAC,KAAK,EAAG,KAAK,EAAG,KAAK,CAAC,EAErCA,EAAc,CAAC,KAAK,EAAG,KAAK,CAAC,EAG3BF,EAAiBE,EAEd,CACL,KAAMD,EAAAA,eAAe,MAAM,QAC3B,YAAAC,CAAA,CAEJ,CACF"}