aladin-lite/src/js/SimbadPointer.js

// Copyright 2018 - UDS/CNRS
// The Aladin Lite program is distributed under the terms
// of the GNU General Public License version 3.
//
// This file is part of Aladin Lite.
//
//    Aladin Lite is free software: you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation, version 3 of the License.
//
//    Aladin Lite is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    The GNU General Public License is available in COPYING file
//    along with Aladin Lite.
//



/******************************************************************************
 * Aladin Lite project
 *
 * File SimbadPointer.js
 *
 * The SIMBAD pointer will query Simbad for a given position and radius and
 * return information on the object with
 *
 * Author: Thomas Boch [CDS]
 *
 *****************************************************************************/
import { Coo }            from "./libs/astro/coo.js";
import { Utils }          from "./Utils";
import { AladinUtils } from "./AladinUtils.js";

export let SimbadPointer = (function() {
    const SimbadPointer = {};

    SimbadPointer.MIRRORS = ['https://alasky.cds.unistra.fr/cgi/simbad-flat/simbad-quick.py', 'https://alaskybis.cds.unistra.fr/cgi/simbad-flat/simbad-quick.py']; // list of base URL for Simbad pointer service


    SimbadPointer.query = function(ra, dec, radiusDegrees, aladinInstance) {
        var coo = new Coo(ra, dec, 7);
        var params = {"Ident": coo.format('s/'), "SR": radiusDegrees};

        Utils.loadFromUrls(SimbadPointer.MIRRORS, {contentType: "text/plain", data: params, dataType: 'text'})
            .then((result) => {

                var regexp = /(.*?)\/(.*?)\((.*?),(.*?)\)/g;
                var match = regexp.exec(result);
                if (match) {
                    var objCoo = new Coo();
                    objCoo.parse(match[1]);
                    var objName = match[2];
                    var title = '<div class="aladin-sp-title"><a target="_blank" href="https://simbad.cds.unistra.fr/simbad/sim-id?Ident=' + encodeURIComponent(objName) + '">' + objName + '</a></div>';
                    var content = '<div class="aladin-sp-content">';
                    content += '<em>Type: </em>' + match[4] + '<br>';
                    var magnitude = match[3];
                    if (Utils.isNumber(magnitude)) {
                        content += '<em>Mag: </em>' + magnitude + '<br>';
                    }
                    content += '<br><a target="_blank" href="http://cdsportal.u-strasbg.fr/?target=' + encodeURIComponent(objName) + '">Query in CDS portal</a>';
                    content += '</div>';

                    aladinInstance.showPopup(objCoo.lon, objCoo.lat, title, content);
                }
                else {
                    let noMatchTitle = '<div class="aladin-sp-title">Ohoh</div>';
                    let formattedRadiusString = AladinUtils.degreesToString(radiusDegrees);
                    let noMatchContent = '<div class="aladin-sp-content">No match was found on <a href="https://simbad.cds.unistra.fr/simbad">Simbad</a> in ' + formattedRadiusString + ' around this point.</div>';
                    aladinInstance.showPopup(coo.lon, coo.lat, noMatchTitle, noMatchContent);
                }
            })
            .catch((e) => {
                aladinInstance.hidePopup();
            })
    };

    return SimbadPointer;
})();