@arcgis/core
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ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API
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JavaScript
/* COPYRIGHT Esri - https://js.arcgis.com/5.0.19/LICENSE.txt */
import{set as t,squaredDistance as e}from"../../../../core/libs/gl-matrix-2/math/vec2.js";import{create as s}from"../../../../core/libs/gl-matrix-2/factories/vec2f64.js";import r from"../lib/GLMaterial.js";import{Material as i}from"../lib/Material.js";import{writePosition as n,writeBufferFloat as a}from"./internal/bufferWriterUtils.js";import{attributeDrivenInstanceLayout as o,instanceLayout as u,HeatmapDensityPassParameters as c,HeatmapDensityTechnique as l,baseLayout as f}from"../shaders/HeatmapDensityTechnique.js";import{HeatmapDensityTechniqueConfiguration as m}from"../shaders/HeatmapDensityTechniqueConfiguration.js";const h=2;class p extends c{constructor(){super(...arguments),this.isAttributeDriven=!1,this.usesHalfFloats=!1}}class g extends i{constructor(t){super(t,p),this.visible=!0,this.produces=new Map([[20,t=>0===t]]),this._configuration=new m}getConfiguration(t,e){return super.getConfiguration(t,e,this._configuration),this._configuration.isAttributeDriven=this.parameters.isAttributeDriven,this._configuration.usesHalfFloat=this.parameters.usesHalfFloats,this._configuration}createGLMaterial(t){return new b(t)}intersect(){}intersectDraped(s,r,i,n,a){const o=s.attributes.get("position"),{parameters:u}=this,{searchRadius:c}=u,{screenToWorldRatio:l}=s,f=c*l+h*l,m=f*f,p=o.data.length/o.size;for(let h=0;h<p;h++){const s=h*o.size,r=t(v,o.data[s],o.data[s+1]);e(r,i)<m&&n(a.distance,a.normal,-1)}}createBufferWriter(){return new d(this.parameters.isAttributeDriven?o:u)}}class b extends r{beginSlot(t){return this.getTechnique(l,t)}}class d{constructor(t){this.layout=t,this.baseInstanceLayout=f}elementCount(t){return t.get("position").indices.length}elementCountBaseInstance(){return 4}write(t,e,s,r,i,o){n(s.get("position"),t,i.position,o);const u="featureAttribute"in i?i.featureAttribute:null;return u&&a(s.get("featureAttribute"),u,o),null}writeBaseInstance(t,e){const s=e.uv0;s.setValues(0,-1,-1),s.setValues(1,-1,1),s.setValues(2,1,-1),s.setValues(3,1,1)}}const v=s();export{g as HeatmapDensityMaterial,p as Parameters};