@arcgis/core/views/2d/layers/features/support/GraphicsReader.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{ringsCentroid as e,polygonCentroid as t}from"../../../../../geometry/support/centroid.js";import{getJsonType as r,isGeometryWithZ as s,isGeometryWithM as i}from"../../../../../geometry/support/jsonTypeUtils.js";import{convertFromGeometry as o,generalizeOptimizedGeometry as n,quantizeOptimizedGeometry as h}from"../../../../../layers/graphics/featureConversionUtils.js";import u from"../../../../../layers/graphics/OptimizedGeometry.js";import{tileSize as c}from"../../../engine/webgl/definitions.js";import{FeatureSetReader as d}from"./FeatureSetReader.js";class a extends d{static from(e,t,r){return new a(e,t,r)}constructor(e,t,r){super(r),this._items=e,this._tile=t,this._index=-1,this._cachedGeometry=null;const s=t.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(e){return null!=this._current.attributes[e]}field(e){return this.readAttribute(e)}get geometryType(){const e=r(this._current.geometry);return"esriGeometryPoint"===e?"esriGeometryMultipoint":e}getCursor(){return this.copy()}copy(){const e=new a(this._items,this._tile,this.metadata);return this.copyInto(e),e}copyInto(e){super.copyInto(e),e._cachedGeometry=this._cachedGeometry,e._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 s(this._current.projectedGeometry)}get hasM(){return i(this._current.projectedGeometry)}get usedMemory(){return this._current.usedMemory}getInTransform(){return this._tile.transform}getSize(){return this._items.length}getAttributeHash(){let e="";for(const t in this._current.attributes)e+=this._current.attributes[t];return e}getObjectId(){return this._items[this._index].objectId}getDisplayId(){return this._current.displayId}setDisplayId(e){throw new Error("InternalError: Setting displayId not supported for graphics.")}setIndex(e){this._index=e}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 e=o(this._current.projectedGeometry);if("esriGeometryPolyline"===this.geometryType&&(e=n(e,this.geometryType,this._tile.transform.scale[0])),this._cachedGeometry=h(e,this.geometryType,this._tile.transform),!this._cachedGeometry)return null;this._wrapGeometry(this._cachedGeometry)}return this._cachedGeometry}_wrapGeometry(e){if(!this._wrappingInfo)return;const{worldSizeX:t}=this._wrappingInfo;if(e.isPoint)return 1===t?(e.coords.push(c,0),e.coords.push(2*-c,0),void e.lengths.push(3)):2===t?(e.coords.push(2*c,0),e.coords.push(4*-c,0),void e.lengths.push(3)):void this._wrapVertex(e.coords,0,2,t);if("esriGeometryMultipoint"!==this.geometryType);else{if(1===t){const t=e.coords.slice();t[0]-=512;const r=e.coords.slice();r[0]+=512,e.coords.push(...t,...r);const s=e.lengths[0];return void e.lengths.push(s,s)}this._wrapVertex(e.coords,0,2,t)}}_wrapVertex(e,t,r,s){const i=t*r,o=e[i];o<-c*(s-2)?e[i]=o+c*s:o>c*(s-1)&&(e[i]=o-c*s)}_readX(){const e=this._readGeometry();return null!=e?e.coords[0]:0}_readY(){const e=this._readGeometry();return null!=e?e.coords[1]:0}_readServerCentroid(){switch(this.geometryType){case"esriGeometryPolygon":{const e=t(this._current.projectedGeometry),r=new u([],e,this.hasZ,!1);return h(r,this.geometryType,this._tile.transform)}case"esriGeometryPolyline":{const t=this._current.projectedGeometry,r=e(t.paths,this.hasZ),s=new u([],r,this.hasZ,!1);return h(s,this.geometryType,this._tile.transform)}}return null}_readAttribute(e,t){const r=this._current.attributes[e];if(void 0!==r)return r;const s=e.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};