@arcgis/core/layers/raster/datasets/ImageServerRaster.js

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.8/LICENSE.txt */
import{__decorate as e}from"tslib";import t from"../../../core/Error.js";import{assertIsSome as i}from"../../../core/maybe.js";import{urlToObject as s}from"../../../core/urlUtils.js";import{property as r,subclass as a}from"../../../core/accessorSupport/decorators.js";import l from"../../../geometry/Extent.js";import n from"../../../geometry/Point.js";import o from"../../../geometry/SpatialReference.js";import c from"./BaseRaster.js";import{setValidBoundary as m}from"../functions/pixelUtils.js";import u from"../transforms/GCSShiftTransform.js";import h from"../../support/RasterInfo.js";import f from"../../support/RasterStorageInfo.js";import p from"../../support/TileInfo.js";import{TilemapCache as d}from"../../support/TilemapCache.js";import{patchServiceInfo as y,fetchServiceRasterInfo as x}from"../../../rest/imageService/fetchRasterInfo.js";let g=class extends c{constructor(){super(...arguments),this._levelOffset=0,this._tilemapCache=null,this._slices=null,this.datasetFormat="RasterTileServer",this.tileType=null}async fetchRawTile(e,t,i,s={}){const{storageInfo:r,extent:a}=this.rasterInfo,{transposeInfo:l}=r,n=null!=l&&!!s.transposedVariableName;if(this._slices&&!n&&null==s.sliceId)return null;const o=n?0:r.maximumPyramidLevel-e+this._levelOffset,c=`${this.url}/tile/${o}/${t}/${i}`,u={...this._slices?n?{variable:s.transposedVariableName}:{sliceId:s.sliceId||0}:null,...s.refreshParameters};let h,f;if(r.isBsqTile){const e=(s.bandIds?.length?s.bandIds:[0,1,2]).map(e=>this.request(c,{query:{...u,bandId:e},responseType:"array-buffer",signal:s.signal})),t=await Promise.all(e),i=t.map(e=>e.data.byteLength).reduce((e,t)=>e+t),r=new Uint8Array(i);f=[];let a=0;for(const{data:s}of t)f.push(a),r.set(new Uint8Array(s),a),a+=s.byteLength;h=r.buffer}else{h=(await this.request(c,{query:u,responseType:"array-buffer",signal:s.signal})).data}if(!h)return null;const p=n?l.tileSize:r.tileInfo.size,d=await this.decodePixelBlock(h,{width:p[0],height:p[1],planes:f?.length,offsets:f,pixelType:null,isPoint:"Elevation"===this.tileType,returnInterleaved:n,noDataValue:this.rasterInfo.noDataValue});if(null==d)return null;const y=r.blockBoundary[e];if("jpg"!==r.compression||i>y.minCol&&i<y.maxCol&&t>y.minRow&&t<y.maxRow)return d;const{origin:x,blockWidth:g,blockHeight:v}=r,{x:S,y:I}=this.getPyramidPixelSize(e),w=Math.round((a.xmin-x.x)/S)%g,b=Math.round((a.xmax-x.x)/S)%g||g,T=Math.round((x.y-a.ymax)/I)%v,M=Math.round((x.y-a.ymin)/I)%v||v,_=i===y.minCol?w:0,j=t===y.minRow?T:0,O=i===y.maxCol?b:g,R=t===y.maxRow?M:v;return m(d,{x:_,y:j},{width:O-_,height:R-j}),d}getSliceIndex(e){if(!this._slices||null==e||0===e.length)return null;const t=e;for(let i=0;i<this._slices.length;i++){const e=this._slices[i].multidimensionalDefinition;if(e.length===t.length&&!e.some(e=>{const i=t.find(t=>e.variableName===t.variableName&&t.dimensionName===e.dimensionName);if(!i)return!0;return(Array.isArray(e.values[0])?`${e.values[0][0]}-${e.values[0][1]}`:e.values[0])!==(Array.isArray(i.values[0])?`${i.values[0][0]}-${i.values[0][1]}`:i.values[0])}))return i}return null}async fetchVariableStatisticsHistograms(e,t){const i=this.request(this.url+"/statistics",{query:{variable:e,f:"json"},signal:t}).then(e=>e.data?.statistics),s=this.request(this.url+"/histograms",{query:{variable:e,f:"json"},signal:t}).then(e=>e.data?.histograms),r=await Promise.all([i,s]);return r[0]&&r[0].forEach(e=>{e.avg=e.mean,e.stddev=e.standardDeviation}),r[1]?.[0]?.counts?.length||(r[1]=null),{statistics:r[0]||null,histograms:r[1]||null}}async computeBestPyramidLevelForLocation(e,t={}){if(!this._tilemapCache)return 0;let i=this.identifyPixelLocation(e,0,t.datumTransformation);if(null===i)return null;let s=0;const{maximumPyramidLevel:r}=this.rasterInfo.storageInfo;let a=r-s+this._levelOffset;const l=i.srcLocation;for(;a>=0;){try{if("available"===await this._tilemapCache.fetchAvailability(a,i.row,i.col,t))break}catch{}if(a--,s++,i=this.identifyPixelLocation(l,s,t.datumTransformation),null===i)return null}return-1===a||null==i?null:s}async _open(e){const r=e?.signal,a=this.sourceJSON?{data:this.sourceJSON}:await this.request(this.url,{query:{f:"json"},signal:r});a.ssl&&(this.url=this.url.replace(/^http:/i,"https:"));const l=a.data;if(this.sourceJSON=l,!l)throw new t("imageserverraster:open","cannot initialize tiled image service, missing service info");if(!l.tileInfo)throw new t("imageserverraster:open","use ImageryLayer to open non-tiled image services");this._fixScaleInServiceInfo();const n=["jpg","jpeg","png","png8","png24","png32","mixed"];this.tileType=l.cacheType,null==this.tileType&&(n.includes(l.tileInfo.format.toLowerCase())?this.tileType="Map":"lerc"===l.tileInfo.format.toLowerCase()?this.tileType="Elevation":this.tileType="Raster"),this.datasetName=l.name?.slice(l.name.indexOf("/")+1)??"";const o=await this._fetchRasterInfo({signal:r});if(null==o)throw new t("image-server-raster:open","cannot initialize image service");y(o,l);const c="Map"===this.tileType?v(l.tileInfo,l):p.fromJSON(l.tileInfo);i(c);const[m,u]=this._computeMinMaxLOD(o,c),{extent:h,pixelSize:x}=o,g=.001*Math.min(x.x,x.y);(x.x!==x.y||Math.abs(m.resolution-x.x)>g)&&(x.x=x.y=m.resolution,o.width=Math.ceil((h.xmax-h.xmin)/x.x-.1),o.height=Math.ceil((h.ymax-h.ymin)/x.y-.1));const I=m.level-u.level,[w,b]=c.size,T=[],M=[],{lods:_}=c;_.forEach((e,t)=>{e.level>=u.level&&e.level<=m.level&&T.push({x:e.resolution,y:e.resolution}),t<_.length-1&&M.push(Math.round(10*e.resolution/_[t+1].resolution)/10)}),T.sort((e,t)=>e.x-t.x);const j=this.computeBlockBoundary(h,w,b,c.origin,T,I),O=T.length>1?T.slice(1):null;let R;l.transposeInfo&&(R={tileSize:[l.transposeInfo.rows,l.transposeInfo.cols],packetSize:o.keyProperties?._yxs.PacketSize??0});const z=M.length<=1||M.length>=3&&M.slice(0,-1).every(e=>e===M[0])?M[0]??2:Math.round(10/(u.resolution/m.resolution)**(-1/I))/10,N=!!l.bsq&&"Raster"===this.tileType;if(o.storageInfo=new f({blockWidth:c.size[0],blockHeight:c.size[1],pyramidBlockWidth:c.size[0],pyramidBlockHeight:c.size[1],pyramidResolutions:O,pyramidScalingFactor:z,compression:c.format,origin:c.origin,firstPyramidLevel:1,maximumPyramidLevel:I,tileInfo:c,isBsqTile:N,transposeInfo:R,blockBoundary:j}),S(o),this._set("rasterInfo",o),l.capabilities.toLowerCase().includes("tilemap")){const e={tileInfo:o.storageInfo.tileInfo,parsedUrl:s(this.url),url:this.url,tileServers:[]};this._tilemapCache=new d({layer:e})}}async _fetchRasterInfo(e){const t=this.sourceJSON;if("Map"===this.tileType){const e=t.fullExtent||t.extent,i=Math.ceil((e.xmax-e.xmin)/t.pixelSizeX-.1),s=Math.ceil((e.ymax-e.ymin)/t.pixelSizeY-.1),r=o.fromJSON(t.spatialReference||e.spatialReference),a=new n({x:t.pixelSizeX,y:t.pixelSizeY,spatialReference:r});return new h({width:i,height:s,bandCount:3,extent:l.fromJSON(e),spatialReference:r,pixelSize:a,pixelType:"u8",statistics:null,keyProperties:{DataType:"processed"}})}const i={...e,query:{...this.ioConfig.customFetchParameters,f:"json"}},s=x(this.url,this.sourceJSON,i),r=t.hasMultidimensions?this.request(`${this.url}/slices`,i).then(e=>e.data?.slices).catch(()=>null):null,a=await Promise.all([s,r]);return this._slices=a[1],a[0]}_fixScaleInServiceInfo(){const{sourceJSON:e}=this;e.minScale&&e.minScale<0&&(e.minScale=0),e.maxScale&&e.maxScale<0&&(e.maxScale=0)}_computeMinMaxLOD(e,t){const{pixelSize:i}=e,s=.5/e.width*i.x,{lods:r}=t,a=t.lodAt(Math.max.apply(null,r.map(e=>e.level))),l=t.lodAt(Math.min.apply(null,r.map(e=>e.level))),{tileType:n}=this;if("Map"===n)return this._levelOffset=r[0].level,[a,l];if("Raster"===n){return[r.find(e=>e.resolution===i.x)??a,l]}const{minScale:o,maxScale:c}=this.sourceJSON;let m=a;c>0&&(m=r.find(e=>Math.abs(e.scale-c)<s),m||(m=r.filter(e=>e.scale>c).sort((e,t)=>e.scale>t.scale?1:-1)[0]??a));let u=l;return o>0&&(u=r.find(e=>Math.abs(e.scale-o)<s)??l,this._levelOffset=u.level-l.level),[m,u]}};function v(e,t){if(!e)return null;const{minScale:i,maxScale:s,minLOD:r,maxLOD:a}=t;if(null!=r&&null!=a)return p.fromJSON({...e,lods:e.lods.filter(({level:e})=>null!=e&&e>=r&&e<=a)});if(0!==i&&0!==s){const t=e=>Math.round(1e4*e)/1e4,r=i?t(i):1/0,a=s?t(s):-1/0;return p.fromJSON({...e,lods:e.lods.filter(e=>{const i=t(e.scale);return i<=r&&i>=a})})}return p.fromJSON(e)}function S(e){const{extent:t,spatialReference:i}=e;t.xmin>-1&&t.xmax>181&&i?.wkid&&i.isGeographic&&(e.nativeExtent=e.extent,e.transform=new u,e.extent=e.transform.forwardTransform(t))}e([r({type:String,json:{write:!0}})],g.prototype,"datasetFormat",void 0),e([r()],g.prototype,"tileType",void 0),g=e([a("esri.layers.raster.datasets.ImageServerRaster")],g);const I=g;export{I as default};