@arcgis/core/views/3d/support/gaussianSplatting/GaussianSplatFadeHelper.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{signal as i}from"../../../../core/signal.js";class e{static{this.fadeInEase=i=>i*(2-i)}static{this.fadeOutEase=i=>i*i}constructor(e){this.layerView=e,this._numFadingTiles=i(0)}get numFadingTiles(){return this._numFadingTiles.value}fadeTile(i,e){const t=this._getTargetOpacity(e);if(i.fadeDirection=e,0===this.fadeDuration)return void this._instantTileFading(i,t);const a=i.opacityModifier;if(a!==t){const e=1-Math.abs(t-a);this._startTileFading(i,e)}else this._stopTileFading(i)}updateAllTileFading(i){this.layerView.tileHandles.forEach(e=>this._updateTileFading(e,i)),this.layerView.updateGaussians()}onFadeDurationChanged(i){0===i&&this.numFadingTiles>0&&this._instantlyFullyFadeAllTiles()}isTileFadingOut(i){return null!=i.fadeProgress&&1===i.fadeDirection}get updating(){return this._numFadingTiles.value>0}get fadeDuration(){return 0}get fadingEnabled(){return 0!==this.fadeDuration}_startTileFading(i,e){null==i.fadeProgress&&this._numFadingTiles.value++,i.fadeProgress=e}_stopTileFading(i){null!=i.fadeProgress&&(1===i.fadeDirection&&this._onTileFullyFadedOut(i),this._numFadingTiles.value--,i.fadeProgress=null)}_updateTileFading(i,t){const{fadeProgress:a,fadeDirection:s}=i;if(null==a)return;const n=this._fadeDirectionToSign(s),d=n*this.fadeDuration,l=this._getTargetOpacity(s),r=t/Math.abs(d||1),o=Math.min(a+r,1),u=n*(1-(0===s?e.fadeInEase:e.fadeOutEase)(o)),g=1===o;i.opacityModifier=g?l:l-u,g?this._stopTileFading(i):i.fadeProgress=o,this._updateOpacityModifier(i)}_updateOpacityModifier(i){const e=255*i.opacityModifier;for(let t=0;t<i.pageIds.length;t++){const a=i.pageIds[t];this.layerView.data.fadingTexture.updateBuffer(e,a)}}_instantTileFading(i,e){i.fadeProgress=null,i.opacityModifier=e,this._updateOpacityModifier(i),1===i.fadeDirection&&this._onTileFullyFadedOut(i)}_instantlyFullyFadeAllTiles(){this.layerView.tileHandles.forEach(i=>{null!=i.fadeProgress&&this._instantTileFading(i,this._getTargetOpacity(i.fadeDirection))}),this.layerView.updateGaussians(),this._numFadingTiles.value=0}_onTileFullyFadedOut(i){i.isVisible=!1,this.layerView.moveTileToCache(i)}_fadeDirectionToSign(i){return 0===i?1:-1}_getTargetOpacity(i){return 0===i?1:0}}export{e as GaussianSplatFadeHelper};