@arcgis/core/views/2d/engine/vectorTiles/VectorTile.js

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

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.19/LICENSE.txt */
import{identity as e,translate as t,rotate as s,scale as r}from"../../../../core/libs/gl-matrix-2/math/mat3.js";import{create as a}from"../../../../core/libs/gl-matrix-2/factories/mat3f32.js";import{tileSizeInTileUnits as i}from"./constants.js";import{CircleRenderBucket as o,SymbolRenderBucket as h,LineRenderBucket as n,FillRenderBucket as l}from"./RenderBucket.js";import{fadeDuration as c}from"./decluttering/config.js";import{TiledDisplayObject as d}from"../webgl/TiledDisplayObject.js";const y=null;class u extends d{constructor(e,t,s,r,a,o,h,n=null){super(e,t,s,r,a,o,i,i),this.styleRepository=h,this._owner=n,this.type="vector-tile",this._referenced=1,this._hasSymbolBuckets=!1,this._usedMemory=256,this.layerData=new Map,this.layerDataToDispose=new Map,this.status="loading",this.allSymbolsFadingOut=!1,this.lastOpacityUpdate=0,this.symbols=new Map,this.isCoverage=!1,this.neededForCoverage=!1,this.decluttered=!1,this.parentTile=null,this.childrenTiles=new Set,this.featureIndex=null,this.triangleCount=0,this._processed=!1,this.id=e.id}get styleLayerUIDs(){return Array.from(this.layerData.keys())}get hasSymbolBuckets(){return this._hasSymbolBuckets}get isFading(){return this._hasSymbolBuckets&&performance.now()-this.lastOpacityUpdate<c}get isHoldingForFade(){return this._hasSymbolBuckets&&(!this.allSymbolsFadingOut||performance.now()-this.lastOpacityUpdate<c)}get wasRequested(){return"errored"===this.status||"loaded"===this.status||"reloading"===this.status}setData(e){this.changeDataImpl(e),this.requestRender(),this.ready(),this._processed=!0}deleteLayerData(e){let t=!1;for(const s of e){const e=this.layerData.get(s);e&&(3===e.type&&this.symbols.delete(s)&&(t=!0),this.layerDataToDispose.set(s,e),this.layerData.delete(s),this.requestRender())}this._owner?.updateTileSize(this),t&&(this.featureIndex?.clear(),this.emit("symbols-changed")),this.requestRender()}processed(){return this._processed}hasData(){return this.layerData.size>0}hasFeatures(){const e=this.layerData.values();for(const t of e)if(t.hasData())return!0;return!1}disposeLayerData(){for(const[e,t]of this.layerDataToDispose)this._usedMemory-=t.usedMemory,t.destroy();this.layerDataToDispose.clear()}dispose(){"unloaded"!==this.status&&(u._destroyRenderBuckets(this.layerData),u._destroyRenderBuckets(this.layerDataToDispose),this.layerData.clear(),this.featureIndex=null,this._usedMemory=0,this.destroy(),this.status="unloaded")}release(){0===--this._referenced&&(this._owner?.onDisposeTile(this),this.dispose(),this.stage=null)}retain(){++this._referenced}get usedMemory(){return this._usedMemory}get usedMemoryPerReference(){return this._usedMemory/(this._referenced||1)}changeDataImpl(e){this.featureIndex?.clear();let t=!1;if(e){const{bucketsWithData:s,emptyBuckets:r}=e,a=this._createRenderBuckets(s);if(r&&r.byteLength>0){const e=new Uint32Array(r);for(const t of e)this._deleteLayerData(t)}for(const[e,i]of a)this._deleteLayerData(e),3===i.type&&(this.symbols.set(e,i.symbols),t=!0),this._usedMemory+=i.usedMemory,this.layerData.set(e,i);this._owner?.updateTileSize(this)}this._hasSymbolBuckets=!1;for(const s of this.layerData.values())3===s.type&&(this._hasSymbolBuckets=!0);t&&this.emit("symbols-changed")}attachWithContext(e){this.stage={context:e,trashDisplayObject(e){e.processDetach()},untrashDisplayObject:()=>!1}}setTransform(a){super.setTransform(a);const i=this.resolution/(a.resolution*a.pixelRatio),o=this.width/this.rangeX*i,h=this.height/this.rangeY*i,n=[0,0];a.toScreen(n,[this.x,this.y]);const l=this.transforms.tileUnitsToPixels;e(l),t(l,l,n),s(l,l,Math.PI*a.rotation/180),r(l,l,[o,h,1])}_createTransforms(){return{displayViewScreenMat3:a(),tileMat3:a(),tileUnitsToPixels:a()}}static _destroyRenderBuckets(e){if(!e)return;const t=new Set;for(const s of e.values())t.has(s)||(s.destroy(),t.add(s));e.clear()}_createRenderBuckets(e){const t=new Map,s=new Map;for(const r of e){const e=this._deserializeBucket(r,s);for(const s of e.layerUIDs)t.set(s,e)}return t}_deserializeBucket(e,t){let s=t.get(e);if(s)return s;switch(new Uint32Array(e)[0]){case 1:s=new l(e,this.styleRepository);break;case 2:s=new n(e,this.styleRepository);break;case 3:s=new h(e,this.styleRepository,this);break;case 4:s=new o(e,this.styleRepository)}return t.set(e,s),s}_deleteLayerData(e){if(!this.layerData.has(e))return;const t=this.layerData.get(e);this.layerDataToDispose.set(e,t),this.layerData.delete(e),this.requestRender()}}export{u as VectorTile,y as tracer};