@arcgis/core/views/2d/engine/webgl/meshing/SimpleMesh.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{dataSizeInBytes as t}from"./definitions.js";import{Mesh as e}from"./Mesh.js";import{DataType as r,PrimitiveType as i}from"../../../../webgl/enums.js";import{VertexElementDescriptor as n}from"../../../../webgl/VertexElementDescriptor.js";const o={position:{type:r.SHORT,count:2}};class s extends e{static create(e,r){const i=[];let{stride:o}=r;if(null==o){o=0;for(const[e,{count:i,type:n,offset:s}]of Object.entries(r.layout)){if(null!=s)throw new Error("Stride cannot be computed automatically when attribute offsets are supplied explicitly.");o+=i*t[n]}}let a=0;for(const[s,{count:d,offset:f,type:m,normalized:x}]of Object.entries(r.layout)){null!=f&&(a=f);const e=new n(s,d,m,a,o,null!=x&&x,0);i.push(e),a+=d*t[m]}const l={primitive:r.primitive};null!=r.index&&(l.index="indexData");let{count:u}=r;if(null==u&&(u=r.index?r.index.length:r.vertex.byteLength/o,Math.floor(u)!==u))throw new Error(`The byte length of vertex data must be an exact multiple of the stride, which is ${o}.`);const c={start:0,count:u,group:0,primitive:r.primitive},p={vertex:{vertexData:{data:r.vertex,layout:i}},parts:[c],groups:[l]};return null!=r.index&&(p.index={indexData:{data:r.index}}),new s(e,p,r.layout)}static createForShader(t,e){return this.create(t,e)}static fromVertexStream(t,e){return s.create(t,{primitive:i.TRIANGLE_STRIP,vertex:new Uint16Array(e),layout:o})}constructor(t,e,r){super(t,e),this._spec=r}bind(t,e,r=0){super.bind(t,e,r)}}export{s as SimpleMesh};