@doegis/core
Version:
DOE GIS API
3 lines (1 loc) • 4.73 kB
JavaScript
import{isNone as e,assertIsSome as t,unwrapOrThrow as r}from"../../../core/maybe.js";import{getGeometryZScaler as s}from"../../../geometry/support/zscale.js";import{unquantizeOptimizedGeometry as o,convertToGeometry as i}from"../../../layers/graphics/featureConversionUtils.js";function n(e,t){return t}function a(e,t,r,s){switch(r){case 0:return c(e,t+s,0);case 1:return"lowerLeft"===e.originPosition?c(e,t+s,1):l(e,t+s,1)}}function h(e,t,r,s){return 2===r?c(e,t,2):a(e,t,r,s)}function u(e,t,r,s){return 2===r?c(e,t,3):a(e,t,r,s)}function d(e,t,r,s){return 3===r?c(e,t,3):h(e,t,r,s)}function c({translate:e,scale:t},r,s){return e[s]+r*t[s]}function l({translate:e,scale:t},r,s){return e[s]-r*t[s]}class f{constructor(e){this._options=e,this.geometryTypes=["esriGeometryPoint","esriGeometryMultipoint","esriGeometryPolyline","esriGeometryPolygon"],this._previousCoordinate=[0,0],this._transform=null,this._applyTransform=n,this._lengths=[],this._currentLengthIndex=0,this._toAddInCurrentPath=0,this._vertexDimension=0,this._coordinateBuffer=null,this._coordinateBufferPtr=0,this._attributesConstructor=class{}}createFeatureResult(){return{fields:[],features:[]}}finishFeatureResult(t){if(this._options.applyTransform&&(t.transform=null),this._attributesConstructor=class{},this._coordinateBuffer=null,this._lengths.length=0,!t.hasZ)return;const r=s(t.geometryType,this._options.sourceSpatialReference,t.spatialReference);if(!e(r))for(const e of t.features)r(e.geometry)}createSpatialReference(){return{}}addField(e,r){const s=e.fields;t(s),s.push(r);const o=s.map((e=>e.name));this._attributesConstructor=function(){for(const e of o)this[e]=null}}addFeature(e,t){e.features.push(t)}prepareFeatures(e){switch(this._transform=e.transform,this._options.applyTransform&&e.transform&&(this._applyTransform=this._deriveApplyTransform(e)),this._vertexDimension=2,e.hasZ&&this._vertexDimension++,e.hasM&&this._vertexDimension++,e.geometryType){case"esriGeometryPoint":this.addCoordinate=(e,t,r)=>this.addCoordinatePoint(e,t,r),this.createGeometry=e=>this.createPointGeometry(e);break;case"esriGeometryPolygon":this.addCoordinate=(e,t,r)=>this._addCoordinatePolygon(e,t,r),this.createGeometry=e=>this._createPolygonGeometry(e);break;case"esriGeometryPolyline":this.addCoordinate=(e,t,r)=>this._addCoordinatePolyline(e,t,r),this.createGeometry=e=>this._createPolylineGeometry(e);break;case"esriGeometryMultipoint":this.addCoordinate=(e,t,r)=>this._addCoordinateMultipoint(e,t,r),this.createGeometry=e=>this._createMultipointGeometry(e)}}createFeature(){return this._lengths.length=0,this._currentLengthIndex=0,this._previousCoordinate[0]=0,this._previousCoordinate[1]=0,this._coordinateBuffer=null,this._coordinateBufferPtr=0,{attributes:new this._attributesConstructor}}allocateCoordinates(){}addLength(e,t,r){0===this._lengths.length&&(this._toAddInCurrentPath=t),this._lengths.push(t)}addQueryGeometry(e,t){const{queryGeometry:r,queryGeometryType:s}=t,n=o(r.clone(),r,!1,!1,this._transform),a=i(n,s,!1,!1);e.queryGeometryType=s,e.queryGeometry={...a}}createPointGeometry(e){const t={x:0,y:0,spatialReference:e.spatialReference};return e.hasZ&&(t.z=0),e.hasM&&(t.m=0),t}addCoordinatePoint(e,t,s){const o=r(this._transform,"transform");switch(t=this._applyTransform(o,t,s,0),s){case 0:e.x=t;break;case 1:e.y=t;break;case 2:"z"in e?e.z=t:e.m=t;break;case 3:e.m=t}}_transformPathLikeValue(e,t){let s=0;t<=1&&(s=this._previousCoordinate[t],this._previousCoordinate[t]+=e);const o=r(this._transform,"transform");return this._applyTransform(o,e,t,s)}_addCoordinatePolyline(e,t,r){this._dehydratedAddPointsCoordinate(e.paths,t,r)}_addCoordinatePolygon(e,t,r){this._dehydratedAddPointsCoordinate(e.rings,t,r)}_addCoordinateMultipoint(e,t,r){0===r&&e.points.push([]);const s=this._transformPathLikeValue(t,r);e.points[e.points.length-1].push(s)}_createPolygonGeometry(e){return{rings:[[]],spatialReference:e.spatialReference,hasZ:!!e.hasZ,hasM:!!e.hasM}}_createPolylineGeometry(e){return{paths:[[]],spatialReference:e.spatialReference,hasZ:!!e.hasZ,hasM:!!e.hasM}}_createMultipointGeometry(e){return{points:[],spatialReference:e.spatialReference,hasZ:!!e.hasZ,hasM:!!e.hasM}}_dehydratedAddPointsCoordinate(e,t,r){0===r&&0==this._toAddInCurrentPath--&&(e.push([]),this._toAddInCurrentPath=this._lengths[++this._currentLengthIndex]-1,this._previousCoordinate[0]=0,this._previousCoordinate[1]=0);const s=this._transformPathLikeValue(t,r),o=e[e.length-1];0===r&&(this._coordinateBufferPtr=0,this._coordinateBuffer=new Array(this._vertexDimension),o.push(this._coordinateBuffer)),this._coordinateBuffer[this._coordinateBufferPtr++]=s}_deriveApplyTransform(e){const{hasZ:t,hasM:r}=e;return t&&r?d:t?h:r?u:a}}export{f as JSONFeatureSetParserContext};