Merge pull request #12 from amystamile/toggleFootprints (bb1cc16b) · Commits · aflab / astrogeology / Asc Geostac

app/src/js/ApiJsonCollection.js

+29 −61

Original line number	Diff line number	Diff line


		function callAPI() {
		return fetch("http://asc-stacbrowser.s3-website-us-west-2.amazonaws.com/catalog.json")
		return fetch("https://stac.astrogeology.usgs.gov/api/collections")
		.then(response => response.json());
		}


		function getStacTargetCatalog(name) {
		if (name == "Mars") {
		return callAPI().then(result => {
		for (let i = 0; i < result.links.length; i++) {
		if (result.links[i].title == 'Mars Analysis Ready Data') {
		return fetch(result.links[i].href)
		.then(response => response.json())
		}
		}
		});
		}
		if (name == "Europa") {
		function getItemCollection(name) {
		var urlArray = [];
		return callAPI().then(result => {
		for (let i = 0; i < result.links.length; i++) {
		if (result.links[i].title == 'Jupiter Analysis Ready Data') {
		return fetch(result.links[i].href)
		.then(response => response.json())
		}
		}
		});
		}
		}


		function getStacMissionCatalogs(name) {
		return getStacTargetCatalog(name).then(result => {
		for (let i = 0; i < result.links.length; i++) {
		if(result.links[i].rel == 'child'){
		return fetch(result.links[i].href)
		.then(response => response.json())
		for (let i = 0; i < result.collections.length; i++) {
		if (result.collections[i].summaries["ssys:targets"] == name.toLowerCase()) {
		let length = result.collections[i].links.length;
		for (let j = 0; j < length; j++) {
		let link = result.collections[i].links[j];
		if (link.rel == 'items') {
		var url = new URL(result.collections[i].links[j].href);
		urlArray.push(url);
		}
		}
		});
		}

		function getItemCollection(name) {
		// ctx_dtms skips a step in which there is no mission catalog instead it
		// takes you straight to the collection from the target catalog
		if (name == "Mars"){
		return getStacTargetCatalog(name).then(result => {
		for (let i = 0; i < result.links.length; i++) {
		if (result.links[i].rel == 'child') {
		return fetch(result.links[i].href)
		.then(response => response.json())
		}
		if (urlArray.length == 0) {
		return;
		}
		});
		let promiseArray = [];
		for (let i = 0; i < urlArray.length; i++) {
		promiseArray.push(fetch(urlArray[i]))
		}
		if (name == "Europa") {
		return getStacMissionCatalogs(name).then(result => {
		return Promise.all([
		fetch(result.links[3].href),
		fetch(result.links[4].href)
		]).then(function (responses) {
		return Promise.all(promiseArray).then(function (responses) {
		return Promise.all(responses.map(function (response) {
		return response.json();
		}));
		});
		})
		}
		}

		export{ getItemCollection };

app/src/js/AstroMap.js

+10 −17

Original line number	Diff line number	Diff line
		@@ -3,7 +3,7 @@ import "proj4leaflet";

		import AstroProj from "./AstroProj";
		import LayerCollection from "./LayerCollection";
		import { getItemCollection } from "./ApiJsonCollection";
		import { getItemCollection, url } from "./ApiJsonCollection";
		import { MY_JSON_MAPS } from "./layers";

		/**
		@@ -91,9 +91,7 @@ export default L.Map.AstroMap = L.Map.extend({
		L.Map.prototype.initialize.call(this, this._mapDiv, this.options);
		this.loadLayerCollection("cylindrical");

		if(target == "Mars" \|\| target == "Europa") {
		this.loadFootprintLayer(target);
		}

		// Listen to baselayerchange event so that we can set the current layer being
		// viewed by the map.
		@@ -123,21 +121,16 @@ export default L.Map.AstroMap = L.Map.extend({
		var footprintCollection = {};

		getItemCollection(name).then(result => {
		let geoLayers = new Array(result.length);
		if (result != undefined){
		for (let i = 0; i < result.length; i++) {
		geoLayers[i] = L.geoJSON().addTo(this);
		footprintCollection[result[i].id] = geoLayers[i];
		for (let j = 0; j < result[i].links.length; j++) {
		if (result[i].links[j].rel == 'item') {
		fetch(result[i].links[j].href)
		.then(response => response.json())
		.then(function(data) {
		geoLayers[i].addData(data);
		})
		}
		let geoLayer = L.geoJSON().addTo(this);
		footprintCollection[result[i].features[0].collection] = geoLayer;
		for (let j = 0; j < result[i].features.length; j++) {
		geoLayer.addData(result[i].features[j]);
		}
		}
		L.control.layers(null, footprintCollection).addTo(this);
		}
		});
		},