esri.views.2d.layers.FeatureLayerView2D] Failed to resolve layer view

JayakumarPD · ‎08-16-2022

Hi,

Using ESRI JS API Core 4.24

I have created a project on Next JS and trying to load the data(polygon) from a JSON source, which I have kept in a local folder. I am getting the json from getStaticProps and passing it to EsriMap component using bellow code..

import dynamic from "next/dynamic";
import React, { useState } from "react";
import fs from "fs/promises";
import path from "path";

const EsriMap = dynamic(() => import("../../components/esri_map"), {
  ssr: false,
});
export default function index({district}) {
  return (
    <>
      <EsriMap districts={district}/>
    </>
  );
}

export async function getStaticProps() {
  const filePath = path.join(process.cwd(), "data", "district.json");
  const jsonData = await fs.readFile(filePath);
  const data = JSON.parse(jsonData);
  return {
    props: {
      district: data,
    },
  };
}

First Try

import React from "react";
import { useRef, useEffect } from "react";
import ArcGISMap from "@arcgis/core/Map";
import MapView from "@arcgis/core/views/MapView";
import LayerView from "@arcgis/core/views/layers/LayerView";
import SpatialReference from "@arcgis/core/geometry/SpatialReference";
import FeatureLayer from "@arcgis/core/layers/FeatureLayer";
import Polygon from "@arcgis/core/geometry/Polygon";
import Graphic from "@arcgis/core/Graphic";
import SimpleFillSymbol from "@arcgis/core/symbols/SimpleFillSymbol";
import SimpleLineSymbol from "@arcgis/core/symbols/SimpleLineSymbol";
import Color from "@arcgis/core/Color";
import SimpleRenderer from "@arcgis/core/renderers/SimpleRenderer";
import Sidebar from "./sidebar";

export default function EsriMap({ districts }) {
  var map, view;
  const mapRef = useRef(null);
  const {
    displayFieldName,
    features,
    fieldAliases,
    fields,
    geometryType,
    spatialReference,
  } = districts;
// I am getting features properly
   console.log(features);
  useEffect(() => {
    const map = new ArcGISMap({
      basemap: "topo-vector",
    });
    const view = new MapView({
      map,
      container: mapRef.current,
      extent: {
        spatialReference: {
          wkid: 102100,
        },
        xmax: 9318041.682582326,
        xmin: 7685897.199114412,
        ymax: 2134999.5715922136,
        ymin: 1257953.6118566156,
      },
      zoom: 7,
    });
// like this i can add the map service also, so scope is fine
    // const districtLayer = new FeatureLayer({
    //   url: "http://XXXXXXXXXXXXXX/MapServer/1"
    // });
    // map.add(districtLayer);
    
    const districtFeatureLayer = new FeatureLayer({
    objectIdField:"OBJECTID",
    geometryType:geometryType,
    fields:fields,
    spatialReference:spatialReference,
    source:features,
    });
    map.add(districtFeatureLayer);
});

  return (
    <>
      <div className="flex flex-row h-full">
        {/* <aside className="w-1/5">Table of content</aside> */}
        <Sidebar/>
        <div className="w-4/5" ref={mapRef}></div>
      </div>
    </>
  );
};

It is giving the error like this (firsttry.png enclosed)

error: s

details: {layer: l, error: s}
message: "layerview creation failed"
name: "layerview:create-error"

Second Try

var graphicsD =[
    {geometry: 
        {features:features,
        geometryType: geometryType,
        spatialReference: new SpatialReference(spatialReference)},
        attribute:fields
    }
  ];
  
  let featureD = [
    {
      id:"districts",
      geometryType:geometryType,
      spatialReference:new SpatialReference(spatialReference),
      fields:fields,
      source: graphicsD,
    }
  ];
  let layerD = new FeatureLayer({
    title:"s",
    id:"d",
    source:featureD,
    objectIdField:"OBJECTID"
  })
 
  map.add(layerD);

It is giving error like this(secondtry.png enclosed)

error: s

details: {layer: l, error: s}
message: "layerview creation failed"
name: "layerview:create-error"

Can anybody guide where I am committing a mistake. in feature layer creation or preparing data for feature layer creation.

JayakumarPD · ‎08-23-2022

In ESRI JS API 4.24, using the json data, feature layer can be created using bellow code. Which renders, with default symbology, the symbology can be changed using renderer or json.

const {features,fields,geometryType,spatialReference} = districts;
var districtsFeatureLayer = new FeatureLayer({
      id: "districts",
      source: features.map((feature) => {
          return {
              attributes: feature.attributes,
              geometry: {
                  type: 'polygon',
                  rings: feature.geometry.rings,
                  spatialReference: new SpatialReference({ wkid: spatialReference.wkid })
              }
          };
      }), 
      outFields: ["*"],
      objectIdField: "OBJECTID",
      geometryType: "polygon",
      spatialReference: new SpatialReference({ wkid: spatialReference.wkid })
  });

  map.add(districtsFeatureLayer);

View solution in original post

JayakumarPD · ‎08-17-2022

Hi this is the json file with one ring, after reading the file, if I console log the features, I am getting the bellow results, screen shot provided.

console.log(features);

console.log(features[0].geometry.rings);

console.log(features[0].attributes);

{
  "displayFieldName": "OBJECTID",
  "fieldAliases": {
    "FID": "FID",
    "OBJECTID": "OBJECTID",
    "KGISDistrictCode": "KGISDistrictCode",
    "KGISDistrictName": "KGISDistrictName",
    "BhuCodeDis": "BhuCodeDis",
    "SHAPE_Leng": "SHAPE_Leng",
    "SHAPE_Area": "SHAPE_Area"
  },
  "geometryType": "esriGeometryPolygon",
  "spatialReference": { "wkid": 102100, "latestWkid": 3857 },
  "fields": [
    { "name": "FID", "type": "esriFieldTypeOID", "alias": "FID" },
    { "name": "OBJECTID", "type": "esriFieldTypeInteger", "alias": "OBJECTID" },
    {
      "name": "KGISDistrictCode",
      "type": "esriFieldTypeString",
      "alias": "KGISDistrictCode",
      "length": 2
    },
    {
      "name": "KGISDistrictName",
      "type": "esriFieldTypeString",
      "alias": "KGISDistrictName",
      "length": 30
    },
    {
      "name": "BhuCodeDis",
      "type": "esriFieldTypeString",
      "alias": "BhuCodeDis",
      "length": 2
    },
    {
      "name": "SHAPE_Leng",
      "type": "esriFieldTypeDouble",
      "alias": "SHAPE_Leng"
    },
    {
      "name": "SHAPE_Area",
      "type": "esriFieldTypeDouble",
      "alias": "SHAPE_Area"
    }
  ],
  "features": [
    {
      "attributes": {
        "FID": 0,
        "OBJECTID": 1,
        "KGISDistrictCode": "01",
        "KGISDistrictName": "Belagavi",
        "BhuCodeDis": "01",
        "SHAPE_Leng": 1008729.89777,
        "SHAPE_Area": 13393941679.9
      },
      "geometry": {
        "rings": [
          [
            [8272602.8877369082, 1781168.6974798122],
            [8271469.4757582778, 1780253.2798111972],
            [8270580.2308112225, 1780944.2739405686],
            [8269718.4766434291, 1780156.0765665986],
            [8267308.2561494801, 1781289.4170124291],
            [8267541.7231793851, 1783341.4453024301],
            [8266906.8653022703, 1784976.7043788226],
            [8270213.8552803472, 1785299.7014001305],
            [8272040.7979063801, 1781933.3299525555],
            [8272602.8877369082, 1781168.6974798122]
          ],
          [
            [8353622.22053569, 1857373.9843678209],
            [8353549.6284096939, 1855612.880076559],
            [8353126.1126473341, 1855648.7738658153],
            [8353622.22053569, 1857373.9843678209]
          ],
          [
            [8386293.7881848402, 1906019.5947838936],
            [8386550.1827982003, 1905677.2375666345],
            [8388904.4673479851, 1905831.8356136479],
            [8392877.1667051669, 1904651.9076249683],
            [8391155.7702609934, 1900359.169648292],
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            [8391863.6651064064, 1893178.7134605984],
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            [8378804.0561771225, 1879032.4739152917],
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            [8377395.1903978232, 1876362.2611853536],
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            [8376839.6625328436, 1874902.5029742045],
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            [8378371.4378355481, 1904894.3152566087],
            [8380447.1695515923, 1907060.3140370937],
            [8381163.2038478609, 1909833.8667771732],
            [8380498.68870096, 1910418.5373492376],
            [8380134.1805403046, 1911946.4834283444],
            [8380306.5796302147, 1915814.0316560098],
            [8386987.3395153405, 1915728.1743072921],
            [8386217.2899032794, 1910732.8852629857],
            [8386293.7881848402, 1906019.5947838936]
          ]
        ]
      }
    },

when I print the features in console, I will get the info like this

and single polygon ring like this

and single attributes like this

then I changed the code to prepare the polygon first and created the feature layer like this

let districtLayer=[{
      geometry:new Polygon({
        rings:features[13].geometry.rings,
        spatialReference: { wkid: 102100 }
      }),
      attributes:features[13].attributes
     }];

     let districtLayerService = new FeatureLayer({
      source: districtLayer,  
      objectIdField: "OBJECTID"
    });

    map.add(districtLayerService);

so I could able to render one polygon successfully. If I have 10,000 polygon, Is there any short circuit to render the all the polygon with out that much iteration.

Is there any way, where I can pass the feature directly to new FeatureLayer class instead of iterating, to render on map.

JayakumarPD · ‎08-23-2022

In ESRI JS API 4.24, using the json data, feature layer can be created using bellow code. Which renders, with default symbology, the symbology can be changed using renderer or json.

const {features,fields,geometryType,spatialReference} = districts;
var districtsFeatureLayer = new FeatureLayer({
      id: "districts",
      source: features.map((feature) => {
          return {
              attributes: feature.attributes,
              geometry: {
                  type: 'polygon',
                  rings: feature.geometry.rings,
                  spatialReference: new SpatialReference({ wkid: spatialReference.wkid })
              }
          };
      }), 
      outFields: ["*"],
      objectIdField: "OBJECTID",
      geometryType: "polygon",
      spatialReference: new SpatialReference({ wkid: spatialReference.wkid })
  });

  map.add(districtsFeatureLayer);