@deck.gl/arcgis/dist/load-modules.js

Use deck.gl as a custom ArcGIS API for JavaScript layer

// deck.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
import createDeckProps from "./deck-props.js";
import createDeckLayer from "./deck-layer.js";
import createDeckLayerView2D from "./deck-layer-view-2d.js";
import createDeckRenderer from "./deck-renderer.js";
import { loadModules as esriLoaderLoadModules } from 'esri-loader';
let arcGIS;
export async function loadArcGISModules(modules, loadScriptOptions) {
    const namespace = Array.isArray(modules) ? null : modules;
    await loadArcGISModule(namespace, loadScriptOptions);
    if (Array.isArray(modules)) {
        return esriLoaderLoadModules(modules, loadScriptOptions).then(array => {
            return { ...arcGIS, modules: array };
        });
    }
    return arcGIS;
}
async function loadArcGISModule(esri, loadScriptOptions) {
    if (arcGIS) {
        // Already loaded
        return arcGIS;
    }
    if (esri) {
        // Using user-provided dependencies
        // Right now this object has to be manually assembled - let @arcgis/webpack-plugin handle this?
        const Layer = esri.layers.Layer;
        const Accessor = esri.core.Accessor;
        const BaseLayerViewGL2D = esri.views['2d'].layers.BaseLayerViewGL2D;
        const externalRenderers = esri.views['3d'].externalRenderers;
        return initialize(Layer, Accessor, BaseLayerViewGL2D, externalRenderers);
    }
    const [Layer, Accessor, BaseLayerViewGL2D, externalRenderers] = await esriLoaderLoadModules([
        'esri/layers/Layer',
        'esri/core/Accessor',
        'esri/views/2d/layers/BaseLayerViewGL2D',
        'esri/views/3d/externalRenderers'
    ], loadScriptOptions);
    return initialize(Layer, Accessor, BaseLayerViewGL2D, externalRenderers);
}
function initialize(Layer, Accessor, BaseLayerViewGL2D, externalRenderers) {
    const DeckProps = createDeckProps(Accessor);
    const DeckLayerView2D = createDeckLayerView2D(BaseLayerViewGL2D);
    const DeckLayer = createDeckLayer(DeckProps, Layer, DeckLayerView2D);
    const DeckRenderer = createDeckRenderer(DeckProps, externalRenderers);
    arcGIS = { DeckLayer, DeckRenderer };
    return arcGIS;
}
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