@arcgis/core/views/2d/layers/features/support/GraphicsReader.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{ringsCentroid as t,polygonCentroid as e}from"../../../../../geometry/support/centroid.js";import{getJsonType as r}from"../../../../../geometry/support/jsonUtils.js";import{convertFromGeometry as s,generalizeOptimizedGeometry as i,quantizeOptimizedGeometry as o}from"../../../../../layers/graphics/featureConversionUtils.js";import n from"../../../../../layers/graphics/OptimizedGeometry.js";import{tileSize as h}from"../../../engine/webgl/definitions.js";import{FeatureSetReader as u}from"./FeatureSetReader.js";class a extends u{static from(t,e,r){return new a(t,e,r)}constructor(t,e,r){super(r),this._items=t,this._tile=e,this._index=-1,this._cachedGeometry=null;const s=e.lod;s.wrap&&(this._wrappingInfo={worldSizeX:s.worldSize[0]})}get _current(){return this._items[this._index]}getItem(){return this._current}getZOrder(){return this._current.zOrder}getMeshWriters(){return this._current.symbolResource?.symbolInfo.meshWriters??[]}hasField(t){return null!=this._current.attributes[t]}field(t){return this.readAttribute(t)}get geometryType(){const t=r(this._current.geometry);return"esriGeometryPoint"===t?"esriGeometryMultipoint":t}getCursor(){return this.copy()}copy(){const t=new a(this._items,this._tile,this.metadata);return this.copyInto(t),t}copyInto(t){super.copyInto(t),t._cachedGeometry=this._cachedGeometry,t._index=this._index}get fields(){throw new Error("Fields reading not supported to graphics.")}get hasFeatures(){return!!this._items.length}get hasNext(){return this._index+1<this._items.length}get exceededTransferLimit(){throw new Error("InternalError: exceededTransferLimit not implemented for graphics.")}get hasZ(){return!1}get hasM(){return!1}get usedMemory(){return this._current.usedMemory}getInTransform(){return this._tile.transform}getSize(){return this._items.length}getAttributeHash(){let t="";for(const e in this._current.attributes)t+=this._current.attributes[e];return t}getObjectId(){return this._items[this._index].objectId}getDisplayId(){return this._current.displayId}setDisplayId(t){throw new Error("InternalError: Setting displayId not supported for graphics.")}setIndex(t){this._index=t}getIndex(){return this._index}next(){for(this._cachedGeometry=null;++this._index<this._items.length&&!this._getExists(););return this._index<this._items.length}readGeometryArea(){throw new Error("InternalError: readGeometryArea not supported for graphics.")}_readGeometry(){if(!this._cachedGeometry){let t=s(this._current.projectedGeometry,this.hasZ,this.hasM);if("esriGeometryPolyline"===this.geometryType&&(t=i(new n,t,this.hasZ,this.hasM,this.geometryType,this._tile.transform.scale[0])),this._cachedGeometry=o(new n,t,this.hasZ,this.hasM,this.geometryType,this._tile.transform),!this._cachedGeometry)return null;this._wrapGeometry(this._cachedGeometry)}return this._cachedGeometry}_wrapGeometry(t){if(!this._wrappingInfo)return;const{worldSizeX:e}=this._wrappingInfo;if(t.isPoint)return 1===e?(t.coords.push(h,0),t.coords.push(-1024,0),void t.lengths.push(3)):2===e?(t.coords.push(2*h,0),t.coords.push(-2048,0),void t.lengths.push(3)):void this._wrapVertex(t.coords,0,2,e);if("esriGeometryMultipoint"!==this.geometryType);else{if(1===e){const e=t.coords.slice();e[0]-=512;const r=t.coords.slice();r[0]+=512,t.coords.push(...e,...r);const s=t.lengths[0];return void t.lengths.push(s,s)}this._wrapVertex(t.coords,0,2,e)}}_wrapVertex(t,e,r,s){const i=e*r,o=t[i];o<-h*(s-2)?t[i]=o+h*s:o>h*(s-1)&&(t[i]=o-h*s)}_readX(){const t=this._readGeometry();return null!=t?t.coords[0]:0}_readY(){const t=this._readGeometry();return null!=t?t.coords[1]:0}_readServerCentroid(){switch(this.geometryType){case"esriGeometryPolygon":{const t=e(this._current.projectedGeometry),r=new n([],t);return o(new n,r,this.hasZ,this.hasM,this.geometryType,this._tile.transform)}case"esriGeometryPolyline":{const e=this._current.projectedGeometry,r=t(e.paths,this.hasZ),s=new n([],r);return o(new n,s,this.hasZ,this.hasM,this.geometryType,this._tile.transform)}}return null}_readAttribute(t,e){const r=this._current.attributes[t];if(void 0!==r)return r;const s=t.toLowerCase();for(const i in this._current.attributes)if(i.toLowerCase()===s)return this._current.attributes[i]}_readAttributes(){return this._current.attributes}}export{a as GraphicsReader};