@arcgis/core/views/3d/webgl-engine/effects/stars/Stars.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{__decorate as t}from"tslib";import{fetchAsset as e}from"../../../../../assets.js";import{createTask as s}from"../../../../../core/asyncUtils.js";import r from"../../../../../core/Error.js";import i from"../../../../../core/Logger.js";import{abortMaybe as a,disposeMaybe as n}from"../../../../../core/maybe.js";import{isAbortError as o}from"../../../../../core/promiseUtils.js";import{watch as f,initial as c,syncAndInitial as m}from"../../../../../core/reactiveUtils.js";import{subclass as h}from"../../../../../core/accessorSupport/decorators.js";import{copy as u,rotateZ as l,multiply as d}from"../../../../../core/libs/gl-matrix-2/math/mat4.js";import{fromValues as p}from"../../../../../core/libs/gl-matrix-2/factories/mat4f64.js";import{InternalRenderCategory as b}from"../../../webgl.js";import{glLayout as _}from"../../../support/buffer/glUtil.js";import{OpaqueEnvironment as g}from"../OpaqueEnvironment.js";import{StarPassParameters as w,StarsTechnique as v,layout as j}from"./StarsTechnique.js";import{VertexArrayObject as P}from"../../lib/VertexArrayObject.js";import{PrimitiveType as y}from"../../../../webgl/enums.js";import{VertexBuffer as D}from"../../../../webgl/VertexBuffer.js";let T=class extends g{constructor(){super(...arguments),this._numPoints=0,this._passParameters=new w}initialize(){this.addHandles([f(()=>this.view.environment.starsEnabled,t=>t?this._enable():this._disable(),c),f(()=>"virtual"===this.view.environment.lighting.type?null:this.view.environment.lighting.date,t=>this._update(t),m)])}_enable(){super._enable(),this._loadDataTask=this._createLoadDataTask()}get loading(){return!!this._loadDataTask&&!this._loadDataTask.finished}destroy(){this._loadDataTask=a(this._loadDataTask),this._numPoints=0,this._vao=n(this._vao),this._starData=null}precompile(){this.techniques.precompile(v)}render(t){const e=t.find(({name:t})=>t===b.OPAQUE_ENVIRONMENT),s=this.renderingContext;if(this.loading)return this.requestRender(1),e;if(!this._starData)return e;this._vao??=this._ensureResources(this._starData,s);const r=this.techniques.get(v);return r.compiled?(s.bindTechnique(r,this.bindParameters,this._passParameters),s.bindVAO(this._vao),s.drawArrays(y.POINTS,0,this._numPoints),e):(this.requestRender(1),e)}_ensureResources(t,e){this._numPoints=t.byteLength/L;return M(e,new Float32Array(t,0,2*this._numPoints),new Uint8Array(t,2*this._numPoints*4,this._numPoints),this._numPoints)}_update(t){if(!t)return;const e=(t.getHours()/12+t.getMinutes()/60*(2/24)+t.getSeconds()/60*(2/1440)-.9972222)%2,s=2*q(t),r=u(this._passParameters.modelMatrix,E);l(r,r,-s*Math.PI),d(r,A,r),l(r,r,-e*Math.PI),this.requestRender(1)}_createLoadDataTask(){if(this._starData)return null;const t=s(async t=>{const{data:s}=await e("esri/views/3d/environment/resources/stars.wsv",{responseType:"array-buffer",signal:t});x(s),this._starData=s});return t.promise.catch(t=>{o(t)||i.getLogger(this).error(t)}).then(()=>{this.destroyed||this.requestRender(1)}),t}};function M(t,e,s,r){const i=j.createBuffer(r),a=i.position,n=i.color,o=i.size;for(let f=0;f<r;f++){const t=e[2*f],r=e[2*f+1];a.set(f,0,-Math.cos(t)*Math.sin(r)),a.set(f,1,-Math.sin(t)*Math.sin(r)),a.set(f,2,-Math.cos(r));const i=I(s[f]),c=k(R[i[1]]);n.set(f,0,255*c[0]),n.set(f,1,255*c[1]),n.set(f,2,255*c[2]),n.set(f,3,255),o.set(f,i[0])}return new P(t,new D(t,_(j),i.buffer))}function q(t){const e=t,s=new Date(t.getFullYear(),0,1,11,58,56);return(+e-+s)/(+new Date(t.getFullYear()+1,0,1,11,58,55)-+s)}function x(t){if(!t)throw new r("stars:no-data-received","Failed to create stars because star catalogue is missing");const e=t.byteLength/L;if(e%1!=0||e>5e4||e<5e3)throw new r("stars:invalid-data","Failed to create stars because star catalogue data is invalid")}function k(t){return[parseInt(t.slice(0,2),16),parseInt(t.slice(2,4),16),parseInt(t.slice(4,6),16)]}function I(t){return t>=192?[2.9,t-192]:t>=160?[2.5,t-160]:t>=128?[2,t-128]:t>=96?[1.5,t-96]:t>=64?[1,t-64]:t>=32?[.7,t-32]:[.4,t]}T=t([h("esri.views.3d.webgl-engine.effects.stars.Stars")],T);const R=["9bb2ff","9eb5ff","aabfff","bbccff","ccd8ff ","dae2ff","e4e9ff","eeefff","f8f6ff","fff9fb","fff5ef","fff1e5","ffeddb","ffe9d2","ffe6ca","ffe3c3","ffe0bb","ffddb4","ffdaad","ffd6a5","ffd29c","ffcc8f","ffc178","ffa94b","ff7b00"],A=p(1,0,0,0,0,.9174771405229186,.39778850739794974,0,0,-.39778850739794974,.9174771405229186,0,0,0,0,1),E=p(1,0,0,0,0,.9174771405229186,-.39778850739794974,0,0,.39778850739794974,.9174771405229186,0,0,0,0,1),L=9;export{T as Stars};