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Created January 3, 2020 07:58
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article polar-projections-with-mapbox
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8'/>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no'/>
<script src='https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.6.0/proj4.js' integrity='sha256-GfiEM8Xh30rkF6VgCIKZXLhoPT8hWwijiHkiKeJY82Y=' crossorigin='anonymous'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/mapbox-gl/1.4.0/mapbox-gl.js' integrity='sha256-4vgPjIfsjmay+xrYNgX79wO5pIHcSKoCWJKwNmoqcms=' crossorigin='anonymous'></script>
<link rel='stylesheet' href='https://cdnjs.cloudflare.com/ajax/libs/mapbox-gl/1.4.0/mapbox-gl.css' integrity='sha256-t2fYcalxXkJ++B2YwGcM5KYrF8Fu9vCcO69LI16Q5Y0=' crossorigin='anonymous'/>
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; height: 100%; };
</style>
</head>
<body>
<div id='map'></div>
<script>
proj4.defs('EPSG:3031', '+proj=stere +lat_0=-90 +lat_ts=-71 +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs');
function reprojectCoord(coord, crs) {
const reprojected = proj4(crs, coord);
const reprojectedForMapbox = proj4('EPSG:3857', 'EPSG:4326', reprojected);
return reprojectedForMapbox;
};
mapboxgl.accessToken = 'your_access_token';
const map = new mapboxgl.Map({
container: 'map',
style: 'your_style_url',
center: [0, 0],
bearing: 140,
zoom: 3,
minZoom: 3,
maxZoom: 12,
renderWorldCopies: false,
maxBounds: [[-180, -80], [180, 80]]
});
map.addControl(new mapboxgl.NavigationControl());
map.on('load', () => {
map.addLayer({
'id': 'comnap-facilities',
'type': 'circle',
'source': {
'type': 'geojson',
'data': {'type':'FeatureCollection','name':'test2','crs':{'type':'name','properties':{'name':'urn:ogc:def:crs:OGC:1.3:CRS84'}},'features':[{'type':'Feature','properties':{'fac_id':4,'name_eng':'Belgrano II','name_off':'Base Antártica Belgrano II','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Year-Round','fac_stat':'Open','year_est':1979,'ant_reg':'East Antarctica','lat_dd':-77.873889,'lon_dd':-34.627778,'lat_ddm':'77° 52.4333' S','lon_ddm':'34° 37.6667' W','elev_m':'256.5','elev_datum':'MSL','peak_pop':0,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r4/e56/v0/Base_Belgrano.jpg','webcam_url':null,'date_mod':'2018/07/30'},'geometry':{'type':'Point','coordinates':[-6.749688686482691,9.727025422232318]}},{'type':'Feature','properties':{'fac_id':5,'name_eng':'Brown','name_off':'Base Antártica Almirante Brown','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Open','year_est':1951,'ant_reg':'Antarctic Peninsula','lat_dd':-64.89537,'lon_dd':-62.870452,'lat_ddm':'64° 53.7222' S','lon_ddm':'62° 52.2271' W','elev_m':'22','elev_datum':'MSL','peak_pop':12,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r5/e56/v0/Base_Brown_Argentina_Puerto_Paraiso.jpg','webcam_url':null,'date_mod':'2017/11/19'},'geometry':{'type':'Point','coordinates':[-22.148886813765078,11.275090883811741]}},{'type':'Feature','properties':{'fac_id':6,'name_eng':'Cámara','name_off':'Base Antártica Cámara','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Open','year_est':1953,'ant_reg':'Antarctic Peninsula','lat_dd':-62.593858,'lon_dd':-59.919344,'lat_ddm':'62° 35.6315' S','lon_ddm':'59° 55.1606' W','elev_m':'22','elev_datum':'MSL','peak_pop':22,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r6/e56/v0/C%C3%A1mara-Base.jpg','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-23.580758970904647,13.53109355995131]}},{'type':'Feature','properties':{'fac_id':9,'name_eng':'Carlini','name_off':'Base Antártica Carlini','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Year-Round','fac_stat':'Open','year_est':1953,'ant_reg':'Antarctic Peninsula','lat_dd':-62.2379,'lon_dd':-58.666842,'lat_ddm':'62° 14.274' S','lon_ddm':'58° 40.0105' W','elev_m':'10','elev_datum':'MSL','peak_pop':80,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r9/e56/v0/cav2016_carlini.jpg','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-23.590514819417763,14.213884718098237]}},{'type':'Feature','properties':{'fac_id':7,'name_eng':'Decepción','name_off':'Base Antártica Decepción','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Open','year_est':1948,'ant_reg':'Antarctic Peninsula','lat_dd':-62.97676,'lon_dd':-60.700695,'lat_ddm':'62° 58.6056' S','lon_ddm':'60° 42.0417' W','elev_m':'7','elev_datum':'MSL','peak_pop':36,'photo_url':null,'webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-23.420551743184628,13.028867941419199]}},{'type':'Feature','properties':{'fac_id':8,'name_eng':'Esperanza','name_off':'Base Antártica Esperanza','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Year-Round','fac_stat':'Open','year_est':1952,'ant_reg':'Antarctic Peninsula','lat_dd':-63.396959,'lon_dd':-56.998054,'lat_ddm':'63° 23.8175' S','lon_ddm':'56° 59.8832' W','elev_m':'25','elev_datum':'MSL','peak_pop':90,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r8/e56/v0/antartida_base_esperanza_12.jpg','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-22.160197130709726,14.24306799160599]}},{'type':'Feature','properties':{'fac_id':10,'name_eng':'Marambio','name_off':'Base Antártica Marambio','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Year-Round','fac_stat':'Open','year_est':1969,'ant_reg':'Antarctic Peninsula','lat_dd':-64.241769,'lon_dd':-56.623225,'lat_ddm':'64° 14.5061' S','lon_ddm':'56° 37.3935' W','elev_m':'209.5','elev_datum':'MSL','peak_pop':165,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r10/e56/v0/BASE-MARAMBIO-H%C3%89RCULES-C-130-Copy.jpg','webcam_url':null,'date_mod':'2018/07/30'},'geometry':{'type':'Point','coordinates':[-21.341213402132478,13.920520105084462]}},{'type':'Feature','properties':{'fac_id':11,'name_eng':'Matienzo','name_off':'Base Antártica Matienzo','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Open','year_est':1961,'ant_reg':'Antarctic Peninsula','lat_dd':-64.975865,'lon_dd':-60.070948,'lat_ddm':'64° 58.5519' S','lon_ddm':'60° 4.2569' W','elev_m':'32','elev_datum':'MSL','peak_pop':12,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r11/e56/v0/matienzooverflight.jpg','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-21.496854407178208,12.280623755956825]}},{'type':'Feature','properties':{'fac_id':12,'name_eng':'Melchior','name_off':'Base Antártica Melchior','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Open','year_est':1947,'ant_reg':'Antarctic Peninsula','lat_dd':-64.325705,'lon_dd':-62.976329,'lat_ddm':'64° 19.5423' S','lon_ddm':'62° 58.5797' W','elev_m':'4','elev_datum':'MSL','peak_pop':15,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r12/e56/v0/Base%20Melchior.jpg','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-22.689283079507472,11.494684807222557]}},{'type':'Feature','properties':{'fac_id':13,'name_eng':'Orcadas','name_off':'Base Orcadas','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Year-Round','fac_stat':'Open','year_est':1904,'ant_reg':null,'lat_dd':-60.737592,'lon_dd':-44.737387,'lat_ddm':'60° 44.2555' S','lon_ddm':'44° 44.2432' W','elev_m':'8','elev_datum':'MSL','peak_pop':65,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r13/e56/v0/Orcadas.jpg','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-20.534157013310253,20.285665113650506]}},{'type':'Feature','properties':{'fac_id':14,'name_eng':'Petrel','name_off':'Base Petrel','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Open','year_est':1952,'ant_reg':'Antarctic Peninsula','lat_dd':-63.478303,'lon_dd':-56.230993,'lat_ddm':'63° 28.6982' S','lon_ddm':'56° 13.8596' W','elev_m':'18','elev_datum':'MSL','peak_pop':45,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r14/e56/v0/petrel2013.jpg','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-21.896005658077126,14.484169776388024]}},{'type':'Feature','properties':{'fac_id':15,'name_eng':'Primavera','name_off':'Base Primavera','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Open','year_est':1977,'ant_reg':'Antarctic Peninsula','lat_dd':-64.155854,'lon_dd':-60.954256,'lat_ddm':'64° 9.3512' S','lon_ddm':'60° 57.2554' W','elev_m':'50','elev_datum':'MSL','peak_pop':18,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r15/e56/v0/primavera.jpg','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-22.41903543510664,12.353638756014616]}},{'type':'Feature','properties':{'fac_id':16,'name_eng':'San Martín','name_off':'Base San Martín','operator_1':'Argentina','operator_2':null,'fac_type':'Station','fac_seas':'Year-Round','fac_stat':'Open','year_est':1951,'ant_reg':'Antarctic Peninsula','lat_dd':-68.1303,'lon_dd':-67.102931,'lat_ddm':'68° 7.818' S','lon_ddm':'67° 6.1759' W','elev_m':'5','elev_datum':'MSL','peak_pop':21,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r16/e56/v0/San%20Martin.jpg','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-19.896427397957012,8.373413925367661]}},{'type':'Feature','properties':{'fac_id':19,'name_eng':'Casey','name_off':'Casey Station','operator_1':'Australia','operator_2':null,'fac_type':'Station','fac_seas':'Year-Round','fac_stat':'Open','year_est':1969,'ant_reg':'East Antarctica','lat_dd':-66.282343,'lon_dd':110.526792,'lat_ddm':'66° 16.9406' S','lon_ddm':'110° 31.6075' E','elev_m':'32','elev_datum':'MSL','peak_pop':99,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r19/e56/v0/Casey%20from%20air%20006.jpg','webcam_url':'http://www.antarctica.gov.au/webcams/casey','date_mod':'2018/07/22'},'geometry':{'type':'Point','coordinates':[21.982088163965873,-8.202323034672967]}},{'type':'Feature','properties':{'fac_id':20,'name_eng':'Davis','name_off':'Davis Station','operator_1':'Australia','operator_2':null,'fac_type':'Station','fac_seas':'Year-Round','fac_stat':'Open','year_est':1957,'ant_reg':'East Antarctica','lat_dd':-68.575938,'lon_dd':77.969516,'lat_ddm':'68° 34.5563' S','lon_ddm':'77° 58.171' E','elev_m':'27','elev_datum':'MSL','peak_pop':91,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r20/e56/v0/Davis%20Aerial%202014005.jpg','webcam_url':'http://www.antarctica.gov.au/webcams/davis','date_mod':'2018/07/22'},'geometry':{'type':'Point','coordinates':[20.683544716513744,4.403584495398595]}},{'type':'Feature','properties':{'fac_id':17,'name_eng':'Edgeworth David','name_off':'Edgeworth David Camp','operator_1':'Australia','operator_2':null,'fac_type':'Camp','fac_seas':'Seasonal','fac_stat':'Open','year_est':0,'ant_reg':'East Antarctica','lat_dd':-66.249935,'lon_dd':100.604213,'lat_ddm':'66° 14.9961' S','lon_ddm':'100° 36.2528' E','elev_m':'15','elev_datum':'MSL','peak_pop':0,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r17/e56/v0/Bunger%20Crosswind%20Strip.png','webcam_url':null,'date_mod':'2017/08/14'},'geometry':{'type':'Point','coordinates':[23.10393406054482,-4.321439056264789]}},{'type':'Feature','properties':{'fac_id':22,'name_eng':'Law','name_off':'Law Station','operator_1':'Australia','operator_2':null,'fac_type':'Refuge','fac_seas':'Seasonal','fac_stat':'Open','year_est':0,'ant_reg':'East Antarctica','lat_dd':-69.388296,'lon_dd':76.380696,'lat_ddm':'69° 23.2978' S','lon_ddm':'76° 22.8418' E','elev_m':'65','elev_datum':'MSL','peak_pop':13,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r22/e56/v0/Law%20Base.png','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[19.757302885700426,4.781282416583136]}},{'type':'Feature','properties':{'fac_id':21,'name_eng':'Mawson','name_off':'Mawson Station','operator_1':'Australia','operator_2':null,'fac_type':'Station','fac_seas':'Year-Round','fac_stat':'Open','year_est':1954,'ant_reg':'East Antarctica','lat_dd':-67.602644,'lon_dd':62.873028,'lat_ddm':'67° 36.1586' S','lon_ddm':'62° 52.3817' E','elev_m':'15','elev_datum':'MSL','peak_pop':53,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r21/e56/v0/MawsonAirCasa_20050203.jpg','webcam_url':'http://www.antarctica.gov.au/webcams/mawson','date_mod':'2018/07/22'},'geometry':{'type':'Point','coordinates':[19.697616128111576,10.039708381551744]}},{'type':'Feature','properties':{'fac_id':18,'name_eng':'Wilkins Aerodrome','name_off':'Wilkins Aerodrome','operator_1':'Australia','operator_2':null,'fac_type':'Airfield Camp','fac_seas':'Seasonal','fac_stat':'Temporarily Closed','year_est':2003,'ant_reg':'East Antarctica','lat_dd':-66.689394,'lon_dd':111.483352,'lat_ddm':'66° 41.3636' S','lon_ddm':'111° 29.0011' E','elev_m':'740','elev_datum':'MSL','peak_pop':12,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r18/e56/v0/Wilkins%20Camp%20-%20Laydown%20Area%20%26%20Apron.jpg','webcam_url':null,'date_mod':'2018/07/18'},'geometry':{'type':'Point','coordinates':[21.456540223037315,-8.414345086474716]}},{'type':'Feature','properties':{'fac_id':23,'name_eng':'Princess Elisabeth Antarctica','name_off':'Princess Elisabeth Antarctica','operator_1':'Belgium','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Open','year_est':2008,'ant_reg':'Dronning Maud Land','lat_dd':-71.949858,'lon_dd':23.346891,'lat_ddm':'71° 56.9915' S','lon_ddm':'23° 20.8135' 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W','elev_m':'8','elev_datum':'MSL','peak_pop':66,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r24/e56/v0/Aerial%20View%20of%20the%20Antarctic%20Modules%20Emergency%20-%20With%20ice.JPG','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-23.656324234165652,14.403584546994596]}},{'type':'Feature','properties':{'fac_id':25,'name_eng':'St. Kliment Ohridski','name_off':'St. Kliment Ohridski Base','operator_1':'Bulgaria','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Open','year_est':1988,'ant_reg':'Antarctic Peninsula','lat_dd':-62.64072307,'lon_dd':-60.36523384,'lat_ddm':'62° 38.4434' S','lon_ddm':'60° 21.914' 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W','elev_m':'5','elev_datum':'MSL','peak_pop':30,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r28/e56/v0/Base%20Prat.jpg','webcam_url':null,'date_mod':'2018/03/26'},'geometry':{'type':'Point','coordinates':[-23.622119846602626,13.691591798212858]}},{'type':'Feature','properties':{'fac_id':229,'name_eng':'Bahía Fildes Maritime Station','name_off':'Estación Marítima Bahía Fildes','operator_1':'Chile','operator_2':null,'fac_type':'Station','fac_seas':'Year-Round','fac_stat':'Temporarily Closed','year_est':0,'ant_reg':null,'lat_dd':-62.201522,'lon_dd':-58.96115,'lat_ddm':'62° 12.0913' S','lon_ddm':'58° 57.669' W','elev_m':null,'elev_datum':null,'peak_pop':0,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r229/e56/v0/Bah%C3%ADa%20Fildes%20Maritime%20Station.jpg','webcam_url':null,'date_mod':'2018/07/17'},'geometry':{'type':'Point','coordinates':[-23.696186356135556,14.115004151786234]}},{'type':'Feature','properties':{'fac_id':102,'name_eng':'Carvajal','name_off':'Lieutenant Luis Carvajal Villarroel (SCTJ)','operator_1':'Chile','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Temporarily Closed','year_est':1985,'ant_reg':'Antarctic Peninsula','lat_dd':-67.761322,'lon_dd':-68.914815,'lat_ddm':'67° 45.6793' S','lon_ddm':'68° 54.8889' W','elev_m':'92','elev_datum':'MSL','peak_pop':46,'photo_url':'https://pgc.quickbase.com/up/bibrbwkpg/a/r102/e56/v0/carvajal%2002_Instituto%20Ant%E1rtico%20Chileno.JPG','webcam_url':null,'date_mod':'2017/12/04'},'geometry':{'type':'Point','coordinates':[-20.500461719997567,7.879425960834674]}},{'type':'Feature','properties':{'fac_id':32,'name_eng':'Dr. Guillermo Mann','name_off':'Base Dr. Guillermo Mann','operator_1':'Chile','operator_2':null,'fac_type':'Station','fac_seas':'Seasonal','fac_stat':'Open','year_est':1991,'ant_reg':'Antarctic Peninsula','lat_dd':-62.47015,'lon_dd':-60.771178,'lat_ddm':'62° 28.209' S','lon_ddm':'60° 46.2707' 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