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How to use isLittleEndian method in wpt

Best JavaScript code snippet using wpt

GeoTiffUtil.js

Source:GeoTiffUtil.js

1/*2 * Copyright 2003-2006, 2009, 2017, 2020 United States Government, as represented3 * by the Administrator of the National Aeronautics and Space Administration.4 * All rights reserved.5 *6 * The NASAWorldWind/WebWorldWind platform is licensed under the Apache License,7 * Version 2.0 (the "License"); you may not use this file except in compliance8 * with the License. You may obtain a copy of the License9 * at http://www.apache.org/licenses/LICENSE-2.010 *11 * Unless required by applicable law or agreed to in writing, software distributed12 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR13 * CONDITIONS OF ANY KIND, either express or implied. See the License for the14 * specific language governing permissions and limitations under the License.15 *16 * NASAWorldWind/WebWorldWind also contains the following 3rd party Open Source17 * software:18 *19 *    ES6-Promise â under MIT License20 *    libtess.js â SGI Free Software License B21 *    Proj4 â under MIT License22 *    JSZip â under MIT License23 *24 * A complete listing of 3rd Party software notices and licenses included in25 * WebWorldWind can be found in the WebWorldWind 3rd-party notices and licenses26 * PDF found in code  directory.27 */28/**29 * @exports GeoTiffUtil30 */31define([32        '../../error/ArgumentError',33        '../../util/Logger',34        './TiffConstants'35    ],36    function (ArgumentError,37              Logger,38              TiffConstants) {39        "use strict";40        var GeoTiffUtil = {41            // Get bytes from an arraybuffer depending on the size. Internal use only.42            getBytes: function (geoTiffData, byteOffset, numOfBytes, isLittleEndian, isSigned) {43                if (numOfBytes <= 0) {44                    throw new ArgumentError(45                        Logger.logMessage(Logger.LEVEL_SEVERE, "GeoTiffReader", "getBytes", "noBytesRequested"));46                } else if (numOfBytes <= 1) {47                    if (isSigned) {48                        return geoTiffData.getInt8(byteOffset, isLittleEndian);49                    }50                    else {51                        return geoTiffData.getUint8(byteOffset, isLittleEndian);52                    }53                } else if (numOfBytes <= 2) {54                    if (isSigned) {55                        return geoTiffData.getInt16(byteOffset, isLittleEndian);56                    }57                    else {58                        return geoTiffData.getUint16(byteOffset, isLittleEndian);59                    }60                } else if (numOfBytes <= 3) {61                    if (isSigned) {62                        return geoTiffData.getInt32(byteOffset, isLittleEndian) >>> 8;63                    }64                    else {65                        return geoTiffData.getUint32(byteOffset, isLittleEndian) >>> 8;66                    }67                } else if (numOfBytes <= 4) {68                    if (isSigned) {69                        return geoTiffData.getInt32(byteOffset, isLittleEndian);70                    }71                    else {72                        return geoTiffData.getUint32(byteOffset, isLittleEndian);73                    }74                } else if (numOfBytes <= 8) {75                    return geoTiffData.getFloat64(byteOffset, isLittleEndian);76                } else {77                    throw new ArgumentError(78                        Logger.logMessage(Logger.LEVEL_SEVERE, "GeoTiffReader", "getBytes", "tooManyBytesRequested"));79                }80            },81            // Get sample value from an arraybuffer depending on the sample format. Internal use only.82            getSampleBytes: function (geoTiffData, byteOffset, numOfBytes, sampleFormat, isLittleEndian) {83                var res;84                switch (sampleFormat) {85                    case TiffConstants.SampleFormat.UNSIGNED:86                        res = this.getBytes(geoTiffData, byteOffset, numOfBytes, isLittleEndian, false);87                        break;88                    case TiffConstants.SampleFormat.SIGNED:89                        res = this.getBytes(geoTiffData, byteOffset, numOfBytes, isLittleEndian, true);90                        break;91                    case TiffConstants.SampleFormat.IEEE_FLOAT:92                        if (numOfBytes == 3) {93                            res = geoTiffData.getFloat32(byteOffset, isLittleEndian) >>> 8;94                        } else if (numOfBytes == 4) {95                            res = geoTiffData.getFloat32(byteOffset, isLittleEndian);96                        } else if (numOfBytes == 8) {97                            res = geoTiffData.getFloat64(byteOffset, isLittleEndian);98                        }99                        else {100                            Logger.log(Logger.LEVEL_WARNING, "Do not attempt to parse the data  not handled: " +101                                numOfBytes);102                        }103                        break;104                    case TiffConstants.SampleFormat.UNDEFINED:105                    default:106                        res = this.getBytes(geoTiffData, byteOffset, numOfBytes, isLittleEndian, false);107                        break;108                }109                return res;110            },111            // Get RGBA fill style for a canvas context as a string. Internal use only.112            getRGBAFillValue: function (r, g, b, a) {113                if (typeof a === 'undefined') {114                    a = 1.0;115                }116                return "rgba(" + r + ", " + g + ", " + b + ", " + a + ")";117            },118            // Clamp color sample from color sample value and number of bits per sample. Internal use only.119            clampColorSample: function (colorSample, bitsPerSample) {120                var multiplier = Math.pow(2, 8 - bitsPerSample);121                return Math.floor((colorSample * multiplier) + (multiplier - 1));122            }123        };124        return GeoTiffUtil;125    }...

nadgrid.js

Source:nadgrid.js

1/**2 * Resources for details of NTv2 file formats:3 * - https://web.archive.org/web/20140127204822if_/http://www.mgs.gov.on.ca:80/stdprodconsume/groups/content/@mgs/@iandit/documents/resourcelist/stel02_047447.pdf4 * - http://mimaka.com/help/gs/html/004_NTV2%20Data%20Format.htm5 */6var loadedNadgrids = {};7/**8 * Load a binary NTv2 file (.gsb) to a key that can be used in a proj string like +nadgrids=<key>. Pass the NTv2 file9 * as an ArrayBuffer.10 */11export default function nadgrid(key, data) {12  var view = new DataView(data);13  var isLittleEndian = detectLittleEndian(view);14  var header = readHeader(view, isLittleEndian);15  if (header.nSubgrids > 1) {16    console.log('Only single NTv2 subgrids are currently supported, subsequent sub grids are ignored');17  }18  var subgrids = readSubgrids(view, header, isLittleEndian);19  var nadgrid = {header: header, subgrids: subgrids};20  loadedNadgrids[key] = nadgrid;21  return nadgrid;22}23/**24 * Given a proj4 value for nadgrids, return an array of loaded grids25 */26export function getNadgrids(nadgrids) {27  // Format details: http://proj.maptools.org/gen_parms.html28  if (nadgrids === undefined) { return null; }29  var grids = nadgrids.split(',');30  return grids.map(parseNadgridString);31}32function parseNadgridString(value) {33  if (value.length === 0) {34    return null;35  }36  var optional = value[0] === '@';37  if (optional) {38    value = value.slice(1);39  }40  if (value === 'null') {41    return {name: 'null', mandatory: !optional, grid: null, isNull: true};42  }43  return {44    name: value,45    mandatory: !optional,46    grid: loadedNadgrids[value] || null,47    isNull: false48  };49}50function secondsToRadians(seconds) {51  return (seconds / 3600) * Math.PI / 180;52}53function detectLittleEndian(view) {54  var nFields = view.getInt32(8, false);55  if (nFields === 11) {56    return false;57  }58  nFields = view.getInt32(8, true);59  if (nFields !== 11) {60    console.warn('Failed to detect nadgrid endian-ness, defaulting to little-endian');61  }62  return true;63}64function readHeader(view, isLittleEndian) {65  return {66    nFields: view.getInt32(8, isLittleEndian),67    nSubgridFields: view.getInt32(24, isLittleEndian),68    nSubgrids: view.getInt32(40, isLittleEndian),69    shiftType: decodeString(view, 56, 56 + 8).trim(),70    fromSemiMajorAxis: view.getFloat64(120, isLittleEndian),71    fromSemiMinorAxis: view.getFloat64(136, isLittleEndian),72    toSemiMajorAxis: view.getFloat64(152, isLittleEndian),73    toSemiMinorAxis: view.getFloat64(168, isLittleEndian),74  };75}76function decodeString(view, start, end) {77  return String.fromCharCode.apply(null, new Uint8Array(view.buffer.slice(start, end)));78}79function readSubgrids(view, header, isLittleEndian) {80  var gridOffset = 176;81  var grids = [];82  for (var i = 0; i < header.nSubgrids; i++) {83    var subHeader = readGridHeader(view, gridOffset, isLittleEndian);84    var nodes = readGridNodes(view, gridOffset, subHeader, isLittleEndian);85    var lngColumnCount = Math.round(86      1 + (subHeader.upperLongitude - subHeader.lowerLongitude) / subHeader.longitudeInterval);87    var latColumnCount = Math.round(88      1 + (subHeader.upperLatitude - subHeader.lowerLatitude) / subHeader.latitudeInterval);89    // Proj4 operates on radians whereas the coordinates are in seconds in the grid90    grids.push({91      ll: [secondsToRadians(subHeader.lowerLongitude), secondsToRadians(subHeader.lowerLatitude)],92      del: [secondsToRadians(subHeader.longitudeInterval), secondsToRadians(subHeader.latitudeInterval)],93      lim: [lngColumnCount, latColumnCount],94      count: subHeader.gridNodeCount,95      cvs: mapNodes(nodes)96    });97  }98  return grids;99}100function mapNodes(nodes) {101  return nodes.map(function (r) {return [secondsToRadians(r.longitudeShift), secondsToRadians(r.latitudeShift)];});102}103function readGridHeader(view, offset, isLittleEndian) {104  return {105    name: decodeString(view, offset + 8, offset + 16).trim(),106    parent: decodeString(view, offset + 24, offset + 24 + 8).trim(),107    lowerLatitude: view.getFloat64(offset + 72, isLittleEndian),108    upperLatitude: view.getFloat64(offset + 88, isLittleEndian),109    lowerLongitude: view.getFloat64(offset + 104, isLittleEndian),110    upperLongitude: view.getFloat64(offset + 120, isLittleEndian),111    latitudeInterval: view.getFloat64(offset + 136, isLittleEndian),112    longitudeInterval: view.getFloat64(offset + 152, isLittleEndian),113    gridNodeCount: view.getInt32(offset + 168, isLittleEndian)114  };115}116function readGridNodes(view, offset, gridHeader, isLittleEndian) {117  var nodesOffset = offset + 176;118  var gridRecordLength = 16;119  var gridShiftRecords = [];120  for (var i = 0; i < gridHeader.gridNodeCount; i++) {121    var record = {122      latitudeShift: view.getFloat32(nodesOffset + i * gridRecordLength, isLittleEndian),123      longitudeShift: view.getFloat32(nodesOffset + i * gridRecordLength + 4, isLittleEndian),124      latitudeAccuracy: view.getFloat32(nodesOffset + i * gridRecordLength + 8, isLittleEndian),125      longitudeAccuracy: view.getFloat32(nodesOffset + i * gridRecordLength + 12, isLittleEndian),126    };127    gridShiftRecords.push(record);128  }129  return gridShiftRecords;...

Using AI Code Generation

1function isLittleEndian() {2  var buffer = new ArrayBuffer(2);3  var bytes = new Uint8Array(buffer);4  var words = new Uint16Array(buffer);5  bytes[0] = 0xab;6  bytes[1] = 0xcd;7  return words[0] === 0xcdab;8}9function isLittleEndian() {10  var buffer = new ArrayBuffer(2);11  var bytes = new Uint8Array(buffer);12  var words = new Uint16Array(buffer);13  bytes[0] = 0xab;14  bytes[1] = 0xcd;15  return words[0] === 0xcdab;16}17function isLittleEndian() {18  var buffer = new ArrayBuffer(2);19  var bytes = new Uint8Array(buffer);20  var words = new Uint16Array(buffer);21  bytes[0] = 0xab;22  bytes[1] = 0xcd;23  return words[0] === 0xcdab;24}25function isLittleEndian() {26  var buffer = new ArrayBuffer(2);27  var bytes = new Uint8Array(buffer);28  var words = new Uint16Array(buffer);29  bytes[0] = 0xab;30  bytes[1] = 0xcd;31  return words[0] === 0xcdab;32}33function isLittleEndian() {34  var buffer = new ArrayBuffer(2);35  var bytes = new Uint8Array(buffer);36  var words = new Uint16Array(buffer);37  bytes[0] = 0xab;38  bytes[1] = 0xcd;39  return words[0] === 0xcdab;40}41function isLittleEndian() {42  var buffer = new ArrayBuffer(2);43  var bytes = new Uint8Array(buffer);44  var words = new Uint16Array(buffer);45  bytes[0] = 0xab;46  bytes[1] = 0xcd;47  return words[0] === 0xcdab;48}

Using AI Code Generation

1var wptools = require('wptools');2var isLittleEndian = wptools.isLittleEndian;3console.log(isLittleEndian);4var wptools = require('wptools');5var isBigEndian = wptools.isBigEndian;6console.log(isBigEndian);7var wptools = require('wptools');8var toHex = wptools.toHex;9console.log(toHex(255, 2));10var wptools = require('wptools');11var toBin = wptools.toBin;12console.log(toBin(255, 8));13var wptools = require('wptools');14var toDec = wptools.toDec;15console.log(toDec("11111111"));16var wptools = require('wptools');17var toOct = wptools.toOct;18console.log(toOct(255, 3));19var wptools = require('wptools');20var toBinArray = wptools.toBinArray;21console.log(toBinArray(255, 8));22var wptools = require('wptools');23var toHexArray = wptools.toHexArray;24console.log(toHexArray(255, 2));25var wptools = require('wptools');26var toOctArray = wptools.toOctArray;27console.log(toOctArray(255, 3));28var wptools = require('wptools');29var toDecArray = wptools.toDecArray;30console.log(toDecArray("11111111"));

Using AI Code Generation

1var wptools = require("wptools");2var isLittleEndian = wptools.isLittleEndian();3console.log("isLittleEndian: " + isLittleEndian);4var wptools = require("wptools");5var isLittleEndian = wptools.isLittleEndian();6console.log("isLittleEndian: " + isLittleEndian);7var wptools = require("wptools");8var isLittleEndian = wptools.isLittleEndian();9console.log("isLittleEndian: " + isLittleEndian);10var wptools = require("wptools");11var isLittleEndian = wptools.isLittleEndian();12console.log("isLittleEndian: " + isLittleEndian);13var wptools = require("wptools");14var isLittleEndian = wptools.isLittleEndian();15console.log("isLittleEndian: " + isLittleEndian);16var wptools = require("wptools");17var isLittleEndian = wptools.isLittleEndian();18console.log("isLittleEndian: " + isLittleEndian);19var wptools = require("wptools");20var isLittleEndian = wptools.isLittleEndian();21console.log("isLittleEndian: " + isLittleEndian);22var wptools = require("wptools");23var isLittleEndian = wptools.isLittleEndian();24console.log("isLittleEndian: " + isLittleEndian);25var wptools = require("wptools");26var isLittleEndian = wptools.isLittleEndian();27console.log("isLittleEndian: " + isLittleEndian);

Using AI Code Generation

1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org');3wpt.isLittleEndian(function(err, data) {4  console.log(data);5});6{ is_little_endian: true }

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2var isLittleEndian = wptoolkit.isLittleEndian();3console.log('isLittleEndian: ' + isLittleEndian);4var wptoolkit = require('wptoolkit');5var isBigEndian = wptoolkit.isBigEndian();6console.log('isBigEndian: ' + isBigEndian);7var wptoolkit = require('wptoolkit');8var isNumber = wptoolkit.isNumber(0);9console.log('isNumber: ' + isNumber);10var wptoolkit = require('wptoolkit');11var isFloat = wptoolkit.isFloat(0.0);12console.log('isFloat: ' + isFloat);13var wptoolkit = require('wptoolkit');14var isInteger = wptoolkit.isInteger(0);15console.log('isInteger: ' + isInteger);16var wptoolkit = require('wptoolkit');17var isString = wptoolkit.isString('test');18console.log('isString: ' + isString);19var wptoolkit = require('wptoolkit');20var isBoolean = wptoolkit.isBoolean(true);21console.log('isBoolean: ' + isBoolean);22var wptoolkit = require('wptoolkit');23var isObject = wptoolkit.isObject({});24console.log('isObject: ' + is

Using AI Code Generation

1var wptb = require('wptb');2console.log(wptb.isLittleEndian());3var wptb = require('wptb');4console.log(wptb.isBigEndian());5var wptb = require('wptb');6console.log(wptb.getNumericRepresentation(0x0F));7var wptb = require('wptb');8console.log(wptb.getHexRepresentation(15));9var wptb = require('wptb');10console.log(wptb.getBinaryRepresentation(15));11var wptb = require('wptb');12console.log(wptb.getBit(15, 0));13var wptb = require('wptb');14console.log(wptb.setBit(15, 0));15var wptb = require('wptb');16console.log(wptb.setBit(15, 1));17var wptb = require('wptb');18console.log(wptb.setBit(15, 2));19var wptb = require('wptb');20console.log(wptb.setBit(15, 3));21var wptb = require('wptb');22console.log(wptb.setBit(15

Using AI Code Generation

1var wptools = require('wptools');2var isLittleEndian = wptools.isLittleEndian();3console.log(isLittleEndian);4var wptools = require('wptools');5var test = require('./test');6var isLittleEndian = test.isLittleEndian;7console.log(isLittleEndian);

Using AI Code Generation

1var isLittleEndian = require('wptools/isLittleEndian');2console.log(isLittleEndian());3var wptools = require('wptools');4console.log(wptools.isLittleEndian());5var wptools = require('wptools');6console.log(wptools.isLittleEndian());7var wptools = require('wptools');8console.log(wptools.isLittleEndian());9var wptools = require('wptools');10console.log(wptools.isLittleEndian());11var wptools = require('wptools');12console.log(wptools.isLittleEndian());13var wptools = require('wptools');14console.log(wptools.isLittleEndian());15var wptools = require('wptools');16console.log(wptools.isLittleEndian());17var wptools = require('wptools');18console.log(wptools.isLittleEndian());19var wptools = require('wptools');20console.log(wptools.isLittleEndian());21var wptools = require('wptools');22console.log(wptools.isLittleEndian());23var wptools = require('wptools');24console.log(wptools.isLittleEndian());25var wptools = require('wptools');

Using AI Code Generation

1var wptools = require('wp-tools');2console.log(wptools.isLittleEndian());3var wptools = require('wp-tools');4console.log(wptools.getSystemEndian());5var wptools = require('wp-tools');6console.log(wptools.getSystemEndian());7var wptools = require('wp-tools');8console.log(wptools.getSystemEndian());9var wptools = require('wp-tools');10console.log(wptools.getSystemEndian());11var wptools = require('wp-tools');12console.log(wptools.getSystemEndian());13var wptools = require('wp-tools');14console.log(wptools.getSystemEndian());15var wptools = require('wp-tools');16console.log(wptools.getSystemEndian());17var wptools = require('wp-tools

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