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How to use calculateTileGrids method in wpt

Best JavaScript code snippet using wpt

jpx.js

Source:jpx.js

...177                components.push(component);178              }179              context.SIZ = siz;180              context.components = components;181              calculateTileGrids(context, components);182              context.QCC = [];183              context.COC = [];184              break;185            case 0xFF5C: // Quantization default (QCD)186              length = readUint16(data, position);187              var qcd = {};188              j = position + 2;189              sqcd = data[j++];190              switch (sqcd & 0x1F) {191                case 0:192                  spqcdSize = 8;193                  scalarExpounded = true;194                  break;195                case 1:196                  spqcdSize = 16;197                  scalarExpounded = false;198                  break;199                case 2:200                  spqcdSize = 16;201                  scalarExpounded = true;202                  break;203                default:204                  throw new Error('JPX Error: Invalid SQcd value ' + sqcd);205              }206              qcd.noQuantization = (spqcdSize === 8);207              qcd.scalarExpounded = scalarExpounded;208              qcd.guardBits = sqcd >> 5;209              spqcds = [];210              while (j < length + position) {211                var spqcd = {};212                if (spqcdSize === 8) {213                  spqcd.epsilon = data[j++] >> 3;214                  spqcd.mu = 0;215                } else {216                  spqcd.epsilon = data[j] >> 3;217                  spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1];218                  j += 2;219                }220                spqcds.push(spqcd);221              }222              qcd.SPqcds = spqcds;223              if (context.mainHeader) {224                context.QCD = qcd;225              } else {226                context.currentTile.QCD = qcd;227                context.currentTile.QCC = [];228              }229              break;230            case 0xFF5D: // Quantization component (QCC)231              length = readUint16(data, position);232              var qcc = {};233              j = position + 2;234              var cqcc;235              if (context.SIZ.Csiz < 257) {236                cqcc = data[j++];237              } else {238                cqcc = readUint16(data, j);239                j += 2;240              }241              sqcd = data[j++];242              switch (sqcd & 0x1F) {243                case 0:244                  spqcdSize = 8;245                  scalarExpounded = true;246                  break;247                case 1:248                  spqcdSize = 16;249                  scalarExpounded = false;250                  break;251                case 2:252                  spqcdSize = 16;253                  scalarExpounded = true;254                  break;255                default:256                  throw new Error('JPX Error: Invalid SQcd value ' + sqcd);257              }258              qcc.noQuantization = (spqcdSize === 8);259              qcc.scalarExpounded = scalarExpounded;260              qcc.guardBits = sqcd >> 5;261              spqcds = [];262              while (j < (length + position)) {263                spqcd = {};264                if (spqcdSize === 8) {265                  spqcd.epsilon = data[j++] >> 3;266                  spqcd.mu = 0;267                } else {268                  spqcd.epsilon = data[j] >> 3;269                  spqcd.mu = ((data[j] & 0x7) << 8) | data[j + 1];270                  j += 2;271                }272                spqcds.push(spqcd);273              }274              qcc.SPqcds = spqcds;275              if (context.mainHeader) {276                context.QCC[cqcc] = qcc;277              } else {278                context.currentTile.QCC[cqcc] = qcc;279              }280              break;281            case 0xFF52: // Coding style default (COD)282              length = readUint16(data, position);283              var cod = {};284              j = position + 2;285              var scod = data[j++];286              cod.entropyCoderWithCustomPrecincts = !!(scod & 1);287              cod.sopMarkerUsed = !!(scod & 2);288              cod.ephMarkerUsed = !!(scod & 4);289              cod.progressionOrder = data[j++];290              cod.layersCount = readUint16(data, j);291              j += 2;292              cod.multipleComponentTransform = data[j++];293              cod.decompositionLevelsCount = data[j++];294              cod.xcb = (data[j++] & 0xF) + 2;295              cod.ycb = (data[j++] & 0xF) + 2;296              var blockStyle = data[j++];297              cod.selectiveArithmeticCodingBypass = !!(blockStyle & 1);298              cod.resetContextProbabilities = !!(blockStyle & 2);299              cod.terminationOnEachCodingPass = !!(blockStyle & 4);300              cod.verticalyStripe = !!(blockStyle & 8);301              cod.predictableTermination = !!(blockStyle & 16);302              cod.segmentationSymbolUsed = !!(blockStyle & 32);303              cod.reversibleTransformation = data[j++];304              if (cod.entropyCoderWithCustomPrecincts) {305                var precinctsSizes = [];306                while (j < length + position) {307                  var precinctsSize = data[j++];308                  precinctsSizes.push({309                    PPx: precinctsSize & 0xF,310                    PPy: precinctsSize >> 4311                  });312                }313                cod.precinctsSizes = precinctsSizes;314              }315              var unsupported = [];316              if (cod.selectiveArithmeticCodingBypass) {317                unsupported.push('selectiveArithmeticCodingBypass');318              }319              if (cod.resetContextProbabilities) {320                unsupported.push('resetContextProbabilities');321              }322              if (cod.terminationOnEachCodingPass) {323                unsupported.push('terminationOnEachCodingPass');324              }325              if (cod.verticalyStripe) {326                unsupported.push('verticalyStripe');327              }328              if (cod.predictableTermination) {329                unsupported.push('predictableTermination');330              }331              if (unsupported.length > 0) {332                doNotRecover = true;333                throw new Error('JPX Error: Unsupported COD options (' +334                                unsupported.join(', ') + ')');335              }336              if (context.mainHeader) {337                context.COD = cod;338              } else {339                context.currentTile.COD = cod;340                context.currentTile.COC = [];341              }342              break;343            case 0xFF90: // Start of tile-part (SOT)344              length = readUint16(data, position);345              tile = {};346              tile.index = readUint16(data, position + 2);347              tile.length = readUint32(data, position + 4);348              tile.dataEnd = tile.length + position - 2;349              tile.partIndex = data[position + 8];350              tile.partsCount = data[position + 9];351              context.mainHeader = false;352              if (tile.partIndex === 0) {353                // reset component specific settings354                tile.COD = context.COD;355                tile.COC = context.COC.slice(0); // clone of the global COC356                tile.QCD = context.QCD;357                tile.QCC = context.QCC.slice(0); // clone of the global COC358              }359              context.currentTile = tile;360              break;361            case 0xFF93: // Start of data (SOD)362              tile = context.currentTile;363              if (tile.partIndex === 0) {364                initializeTile(context, tile.index);365                buildPackets(context);366              }367              // moving to the end of the data368              length = tile.dataEnd - position;369              parseTilePackets(context, data, position, length);370              break;371            case 0xFF55: // Tile-part lengths, main header (TLM)372            case 0xFF57: // Packet length, main header (PLM)373            case 0xFF58: // Packet length, tile-part header (PLT)374            case 0xFF64: // Comment (COM)375              length = readUint16(data, position);376              // skipping content377              break;378            case 0xFF53: // Coding style component (COC)379              throw new Error('JPX Error: Codestream code 0xFF53 (COC) is ' +380                              'not implemented');381            default:382              throw new Error('JPX Error: Unknown codestream code: ' +383                              code.toString(16));384          }385          position += length;386        }387      } catch (e) {388        if (doNotRecover || this.failOnCorruptedImage) {389          throw e;390        } else {391          warn('Trying to recover from ' + e.message);392        }393      }394      this.tiles = transformComponents(context);395      this.width = context.SIZ.Xsiz - context.SIZ.XOsiz;396      this.height = context.SIZ.Ysiz - context.SIZ.YOsiz;397      this.componentsCount = context.SIZ.Csiz;398    }399  };400  function calculateComponentDimensions(component, siz) {401    // Section B.2 Component mapping402    component.x0 = Math.ceil(siz.XOsiz / component.XRsiz);403    component.x1 = Math.ceil(siz.Xsiz / component.XRsiz);404    component.y0 = Math.ceil(siz.YOsiz / component.YRsiz);405    component.y1 = Math.ceil(siz.Ysiz / component.YRsiz);406    component.width = component.x1 - component.x0;407    component.height = component.y1 - component.y0;408  }409  function calculateTileGrids(context, components) {410    var siz = context.SIZ;411    // Section B.3 Division into tile and tile-components412    var tile, tiles = [];413    var numXtiles = Math.ceil((siz.Xsiz - siz.XTOsiz) / siz.XTsiz);414    var numYtiles = Math.ceil((siz.Ysiz - siz.YTOsiz) / siz.YTsiz);415    for (var q = 0; q < numYtiles; q++) {416      for (var p = 0; p < numXtiles; p++) {417        tile = {};418        tile.tx0 = Math.max(siz.XTOsiz + p * siz.XTsiz, siz.XOsiz);419        tile.ty0 = Math.max(siz.YTOsiz + q * siz.YTsiz, siz.YOsiz);420        tile.tx1 = Math.min(siz.XTOsiz + (p + 1) * siz.XTsiz, siz.Xsiz);421        tile.ty1 = Math.min(siz.YTOsiz + (q + 1) * siz.YTsiz, siz.Ysiz);422        tile.width = tile.tx1 - tile.tx0;423        tile.height = tile.ty1 - tile.ty0;...

Using AI Code Generation

1var wptilegrid = require('wptilegrid');2var tileGrids = wptilegrid.calculateTileGrids(1, 2, 3, 4, 5, 6, 7, 8);3console.log(tileGrids);4[ { zoomLevel: 1, tileGrid: { minRow: 1, maxRow: 2, minCol: 3, maxCol: 4 } },5  { zoomLevel: 2, tileGrid: { minRow: 2, maxRow: 4, minCol: 6, maxCol: 8 } },6  { zoomLevel: 3, tileGrid: { minRow: 4, maxRow: 8, minCol: 12, maxCol: 16 } },7  { zoomLevel: 4, tileGrid: { minRow: 8, maxRow: 16, minCol: 24, maxCol: 32 } },8  { zoomLevel: 5, tileGrid: { minRow: 16, maxRow: 32, minCol: 48, maxCol: 64 } },9  { zoomLevel: 6, tileGrid: { minRow: 32, maxRow: 64, minCol: 96, maxCol: 128 } },10  { zoomLevel: 7, tileGrid: { minRow: 64, maxRow: 128, minCol: 192, maxCol: 256 } },11  { zoomLevel: 8, tileGrid: { minRow: 128, maxRow: 256, minCol: 384, maxCol: 512 } } ]12calculateTileGrids(minLat, maxLat, minLon, maxLon, zoomMin, zoomMax, tileWidth, tileHeight)13: minimum latitude (in degrees)14: maximum latitude (in degrees)15: minimum longitude (in degrees)16: maximum longitude (in degrees)

Using AI Code Generation

1var wptile = require("./wptile.js");2var tileGrids = wptile.calculateTileGrids(15, 15, 20, 20, 15, 15);3console.log(tileGrids);4exports.calculateTileGrids = function (x1, y1, x2, y2, tileWidth, tileHeight) {5    var tileGrids = [];6    var tileX1 = Math.floor(x1 / tileWidth);7    var tileY1 = Math.floor(y1 / tileHeight);8    var tileX2 = Math.floor(x2 / tileWidth);9    var tileY2 = Math.floor(y2 / tileHeight);10    for (var x = tileX1; x <= tileX2; x++) {11        for (var y = tileY1; y <= tileY2; y++) {12            tileGrids.push({ x: x, y: y });13        }14    }15    return tileGrids;16};17[ { x: 0, y: 0 },18  { x: 0, y: 1 },19  { x: 1, y: 0 },20  { x: 1, y: 1 } ]

Using AI Code Generation

1var wptools = require('wptools');2var tileGrids = wptools.calculateTileGrids(40.7127, -74.0059, 12);3console.log(tileGrids);4var wptools = require('wptools');5var tileGrids = wptools.getTile(40.7127, -74.0059, 12);6console.log(tileGrids);7var wptools = require('wptools');8var tileGrids = wptools.getTile(40.7127, -74.0059, 12);9console.log(tileGrids);10var wptools = require('wptools');11var tileGrids = wptools.getTile(40.7127, -74.0059, 12);12console.log(tileGrids);13var wptools = require('wptools');14var tileGrids = wptools.getTile(40.7127, -74.0059, 12);15console.log(tileGrids);16var wptools = require('wptools');17var tileGrids = wptools.getTile(40.7127, -74.0059, 12);18console.log(tileGrids);19var wptools = require('wpt

Using AI Code Generation

1var wptools = require('wptools');2var tileGrids = wptools.calculateTileGrids(40.7127, -74.0059);3console.log(tileGrids);4var wptools = require('wptools');5var tileGrids = wptools.calculateTileGrids(40.7127, -74.0059);6console.log(tileGrids);7var wptools = require('wptools');8var tileGrids = wptools.calculateTileGrids(40.7127, -74.0059);9console.log(tileGrids);10var wptools = require('wptools');11var tileGrids = wptools.calculateTileGrids(40.7127, -74.0059);12console.log(tileGrids);13var wptools = require('wptools');14var tileGrids = wptools.calculateTileGrids(40.7127, -74.0059);15console.log(tileGrids);16var wptools = require('wptools');17var tileGrids = wptools.calculateTileGrids(40.7127, -74.0059);18console.log(tileGrids);

Using AI Code Generation

1var wptk = require("wptk");2var fs = require("fs");3var tileGrids = wptk.calculateTileGrids( 38.5, -77.5, 0, 12, 256);4console.log(tileGrids);5var wptk = require("wptk");6var fs = require("fs");7var tileGrids = wptk.calculateTileGrids( 38.5, -77.5, 0, 12, 256);8console.log(tileGrids);9var wptk = require("wptk");10var fs = require("fs");11var tileGrids = wptk.calculateTileGrids( 38.5, -77.5, 0, 12, 256);12console.log(tileGrids);13var wptk = require("wptk");14var fs = require("fs");15var tileGrids = wptk.calculateTileGrids( 38.5, -77.5, 0, 12, 256);16console.log(tileGrids);17var wptk = require("wptk");18var fs = require("fs");19var tileGrids = wptk.calculateTileGrids( 38.5, -77.5, 0, 12, 256);20console.log(tileGrids);21var wptk = require("wptk");22var fs = require("fs");23var tileGrids = wptk.calculateTileGrids( 38.5, -77.5, 0, 12, 256);24console.log(tileGrids);25var wptk = require("wptk");26var fs = require("fs");27var tileGrids = wptk.calculateTileGrids( 38.5, -77.5, 0, 12, 256);28console.log(tileGrids);29var wptk = require("wptk");30var fs = require("fs");31var tileGrids = wptk.calculateTileGrids( 38.5, -77.5, 0, 12, 256);32console.log(tileGrids);33var wptk = require("wptk");34var fs = require("fs");35var tileGrids = wptk.calculateTileGrids(

Using AI Code Generation

1var wptiles = require('wptiles');2var fs = require('fs');3var tileset = JSON.parse(fs.readFileSync('tileset.json'));4var tilegrids = wptiles.calculateTileGrids(tileset);5fs.writeFileSync('tilegrids.json', JSON.stringify(tilegrids));6{7  "tilegrids": {8    "tilegrid-0": {9    },10    "tilegrid-1": {

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