@arcgis/core/views/2d/engine/webgl/mesh/MeshData.js

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

/*
All material copyright ESRI, All Rights Reserved, unless otherwise specified.
See https://js.arcgis.com/4.33/esri/copyright.txt for details.
*/
import t from"../DisplayEntity.js";import e from"../DisplayRecord.js";import{VertexDataWriter as r}from"./VertexDataWriter.js";import i from"../util/Writer.js";class n{constructor(e,r=0){this._id=e,this._sizeHint=r,this._entityRecordCountOffset=0,this._entityCountOffset=0,this._entityIdIndex=0,this._entitySortKeyIndex=0,this._didEntityStart=!1,this._instanceIdToVertexData=new Map,this._recordIndexStart=0,this._recordIndexCount=0,this._recordVertexStart=0,this._recordVertexCount=0,this._current={metric:null,writer:null,start:0,sortKey:0,instanceId:0,layoutHash:0,indexStart:0,vertexStart:0,textureKey:0,metricBoxLenPointer:0},this._entities=new i(Uint32Array,this._sizeHint*t.byteSizeHint),this._entityCountOffset=this._entities.push(0)}get id(){return this._id}serialize(){const t=new Array,e=[],r=this._entities.buffer();for(const i of this._instanceIdToVertexData.values())e.push(i.serialize(t));return{message:{data:e,entities:r},transferList:t}}vertexStart(){return this._current.vertexStart??0}vertexCount(){return this._current.writer?.vertexCount??0}indexCount(){return this._current.writer?.indexCount??0}vertexEnsureSize(t){this._current.writer.vertexEnsureSize(t)}indexEnsureSize(t){this._current.writer.indexEnsureSize(t)}vertexWrite(t){this._current.writer.writeVertex(t)}vertexWriteRegion(t){this._current.writer.writeVertexRegion(t)}vertexWriteF32(t){this._current.writer.writeVertexF32(t)}recordBounds(t,e,r,i){}indexWrite(t){this._current.writer.writeIndex(t)}metricStart(t){this._current.metric=t,this._current.metric.recordStart=this.recordCount()}metricEnd(){const t=this._current.writer;this._current.metric&&(this._current.metric.recordCount=this.recordCount()-this._current.metric.recordStart),this._current.metric?.bounds.length&&this._current.metric?.recordCount?(t.writeMetric(this._current.metric),this._current.metric=null):this._current.metric=null}metricBoxWrite(t){this._current.metric.bounds.push(t)}entityStart(t,e=t){this._entityIdIndex=this._entities.push(t),this._entitySortKeyIndex=this._entities.writeF32(e),this._entityRecordCountOffset=this._entities.push(0),this._didEntityStart=!0}entityRecordCount(){return this._entities.getValue(this._entityRecordCountOffset)}entityEnd(){if(!this._didEntityStart)return;0===this.entityRecordCount()?this._entities.seek(this._entityIdIndex):this._entities.incr(this._entityCountOffset),this._didEntityStart=!1}recordCount(){return this._entities.getValue(this._entityRecordCountOffset)}recordStart(t,e,r=0){this._current.writer=this._getVertexWriter(t,e),this._current.indexStart=this._current.writer.indexCount,this._current.vertexStart=this._current.writer.vertexCount,this._current.instanceId=t,this._current.layoutHash=e.hash,this._current.textureKey=r}recordEnd(t=0){const r=this._current.vertexStart,i=this._current.writer.vertexCount-r;if(!i)return!1;const n=this._current.indexStart,s=this._current.writer.indexCount-n;return this._recordIndexStart=n,this._recordIndexCount=s,this._recordVertexStart=r,this._recordVertexCount=i,this._entities.incr(this._entityRecordCountOffset),e.write(this._entities,this._current.instanceId,this._current.textureKey,n,s,r,i,t),!0}copyLast(t,r){const i=this._recordVertexStart+this._recordVertexCount;this._entities.incr(this._entityRecordCountOffset),e.write(this._entities,this._current.instanceId,this._current.textureKey,this._recordIndexStart+this._recordIndexCount,this._recordIndexCount,i,this._recordVertexCount,0);const n=this._current.writer.indexWriter,s=this._current.writer.vertexWriter,c=this._recordIndexStart+this._recordIndexCount,o=this._recordVertexCount;for(let e=this._recordIndexStart;e!==c;e++){const t=n.getValue(e);n.push(t+o)}const u=this._current.writer.layout.stride/Uint32Array.BYTES_PER_ELEMENT,h=this._recordVertexStart*u,_=(this._recordVertexStart+this._recordVertexCount)*u;for(let e=h;e!==_;e++){const t=s.getValue(e);s.push(t)}const d=this._current.writer.layout.position,a=d.packPrecisionFactor??1,x=d.offset/Uint32Array.BYTES_PER_ELEMENT,y=t*a,S=r*a;for(let e=i*u;e<=s.length;e+=u)s.i1616Add(e+x,y,S)}copyLastFrom(t,e,r){const i=t._entities.getValue(t._entityIdIndex);if(i!==this._entities.getValue(this._entityIdIndex)){const e=t._entities.getValueF32(t._entitySortKeyIndex);this.entityStart(i,e)}this.recordStart(t._current.instanceId,t._current.writer.layout,t._current.textureKey);const n=this._current.writer.layout.stride/Uint32Array.BYTES_PER_ELEMENT,s=this._current.vertexStart,c=t._current.vertexStart-s,o=this._current.writer.indexWriter,u=this._current.writer.vertexWriter,h=t._current.writer.indexWriter,_=t._current.writer.vertexWriter;for(let l=t._current.indexStart;l!==h.length;l++){const t=h.getValue(l);o.push(t-c)}for(let l=t._current.vertexStart*n;l!==_.length;l++){const t=_.getValue(l);u.push(t)}const d=this._current.writer.layout.position,a=d.packPrecisionFactor??1,x=d.offset/Uint32Array.BYTES_PER_ELEMENT,y=e*a,S=r*a;for(let l=s*n;l<=u.length;l+=n)u.i1616Add(l+x,y,S);this.recordEnd()}_getVertexWriter(t,e){const i=this._instanceIdToVertexData;return i.has(t)||i.set(t,new r(t,e,this._sizeHint)),i.get(t)}}export{n as MeshData};