Merge pull request #9 from amystamile/Demo (5546b37f) · Commits · aflab / astrogeology / Asc Geostac

app/src/js/ApiJsonCollection.js

0 → 100644

+74 −0

Original line number	Diff line number	Diff line

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


		function getStacTargetCatalog(name) {
		if (name == "Mars") {
		return callAPI().then(result => {
		console.log("STAC Catalog for USGS: ");
		console.log(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") {
		return callAPI().then(result => {
		console.log("STAC Catalog for USGS: ");
		console.log(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 => {
		console.log("STAC Catalog(s) for Specific Target: ");
		console.log(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())
		}
		}
		});
		}

		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 => {
		console.log("STAC Catalog(s) for Specific Target: ");
		console.log(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 (name == "Europa") {
		return getStacMissionCatalogs(name).then(result => {
		console.log("STAC Collection for Specific Mission: ");
		console.log(result);
		return fetch(result.links[3].href)
		.then(response => response.json())
		})
		}
		}

		export{ getItemCollection };

app/src/js/AstroMap.js

+27 −0

Original line number	Diff line number	Diff line
		@@ -3,6 +3,7 @@ import "proj4leaflet";

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

		/**
		@@ -90,6 +91,10 @@ 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.
		this.on("baselayerchange", function(e) {
		@@ -107,6 +112,28 @@ export default L.Map.AstroMap = L.Map.extend({
		this.layers[name].addTo(this);
		},

		/**
		* @function AstroMap.prototype.loadFootprintLayer
		* @description Adds the ApiJsonCollection with the requested name.
		*
		* @param {String} name - Name of the STAC Catalog. example "ctx_dtms"
		*/
		loadFootprintLayer: function(name) {
		var footprintLayer = L.geoJSON().addTo(this);

		getItemCollection(name).then(result => {
		console.log("STAC Item Collection: ");
		console.log(result);
		for (let i = 0; i < result.links.length; i++) {
		if (result.links[i].rel == 'item') {
		fetch(result.links[i].href)
		.then(response => response.json())
		.then(data => footprintLayer.addData(data))
		}
		}
		});
		},

		/**
		* @function AstroMap.prototype.parseJSON
		* @description Parses the USGS JSON, creates layer objects for a particular target and projection,