[{"data":1,"prerenderedAt":182},["ShallowReactive",2],{"project-14376821":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":5,"maker":10,"posted_at":11,"year":12,"points":13,"comments":14,"rank_in_year":15,"shown_in_year":16,"top":17,"tier":18,"category":19,"subcategory":20,"format":21,"keywords":22,"reception":27,"sentiment":28,"stance_mix":29,"scored_comments":33,"aspects":34,"strip":38,"post_text":41,"what":42,"said":55,"maker_in_thread":102,"shape":115,"grid":119,"attempts":144,"same_week":145,"maker_shows":30,"maker_hidden":174,"reader_version":175,"card":176},"14376821","mjmdavis.com","Interactively explore different map projections","title","Show HN: Interactively explore different map projections","http:\u002F\u002Fmjmdavis.com\u002Fshowing\u002F2017\u002F05\u002F16\u002Fhow-to-read-maps.html","mjmdavis",1495209009,2017,109,12,411,2242,19,"notable","creative","interactive map visualisation","web_app",[23,24,25,26],"map projections","mercator projection","interactive maps","cartography","curious",0.118,{"positive":30,"neutral":31,"mixed":32,"critical":32},1,6,0,7,{"idea":35,"design":36,"docs":37},{"positive":32,"critical":32},{"positive":30,"critical":32},{"positive":32,"critical":32},[39,32,39,39,39,32,39,32,32,40,39,32],3,5,null,{"problem":43,"audience":41,"pricing":41,"motivation":41,"time_to_build":41,"stack":53,"openness":54,"stage":54,"team_size":54},{"value":44,"source":45,"evidence":46},"Understanding distortion in different map projections, especially Mercator","inferred",[47,49],{"id":48},"post",{"id":50,"by":51,"text":52},"14377183","joern","nice, one of the best, interactive visualizations of the problems of mercator maps i've seen",[],"unknown",{"praise":56,"objections":62,"requests":63,"questions":75,"alternatives":83},[57],{"value":58,"source":59,"evidence":60},"Interactive visualization of Mercator problems is one of the best seen","commenter",[61],{"id":50,"by":51,"text":52},[],[64],{"value":65,"source":59,"evidence":66},"Support for more non-Mercator projections such as HEALPix and Dymaxion",[67,71],{"id":68,"by":69,"text":70},"14377951","m1el","There's a few map projections I really like that don't have most of these problems: HELAPIx[0] and Dymaxion map[1]. HELAPIx is designed to have pixels of the same area, and…",{"id":72,"by":73,"text":74},"14378389","desdiv","Are there any online maps that aren't Web Mercator? Google Maps, Here.com, OpenStreetMap, Bing Maps, MapQuest are all Mercator-only, with no easy option to switch.",[76],{"value":77,"source":59,"evidence":78},"How do EPSG projection conversions work",[79],{"id":80,"by":81,"text":82},"14381318","MichailP","Is there some nice explanation of how the projections between various EPSG codes work? I converted one projection into another but in QGIS or in python pyproj, but except for the…",[84,91,98],{"value":85,"source":59,"evidence":86},"Cahill-Keyes projection",[87],{"id":88,"by":89,"text":90},"14381855","mitchtbaum","I like Cahill-Keyes: http:\u002F\u002Fwww.cartotalk.com\u002Findex.php?showtopic=9406 (d3.js animation included).",{"value":92,"source":59,"evidence":93},"Myriahedral projections",[94],{"id":95,"by":96,"text":97},"14382876","lukewtollefson","Probably my favorite are the Myriahedral projections[1], basically the Dymaxion map, but with ridiculous number of faces. In his paper he also unfolds a fractal[2]. [1]:…",{"value":99,"source":59,"evidence":100},"HEALPix",[101],{"id":68,"by":69,"text":70},{"comments":103,"answered":104,"key":105},4,2,[106,109,112],{"id":107,"text":108},"14378112","I think Healpix is included in the tool at the bottom. Also check out the last few in the list which are similar to Dymaxion.",{"id":110,"text":111},"14378854","One of the main reasons it's so popular is that is preserves shape, angle and north is always up. This means you can create a tiling map server and use the same tiles at all…",{"id":113,"text":114},"14387605","I don't yet have a very good understanding of the whole EPSG code system yet either. :s",{"commenters":116,"max_depth":104,"maker_replies":103,"first_comment_mins":117,"lifespan_hours":118},9,38,47,[120,122,124,125,126,127,129,132,134,135,137,141],[68,32,39,121,69,32],"project\u002Fneutral\u002Fidea",[107,32,32,123,10,30],"commenter\u002Fneutral\u002Fnone",[88,32,39,121,89,32],[95,32,39,121,96,32],[72,30,39,121,73,32],[110,30,32,128,10,30],"commenter\u002Fneutral\u002Fidea",[130,30,39,121,131,32],"14380129","1wheel",[80,104,32,133,81,32],"other\u002Fneutral\u002Fnone",[113,104,32,133,10,30],[50,39,40,136,51,32],"project\u002Fpositive\u002Fdesign",[138,103,39,139,140,32],"14378990","project\u002Fneutral\u002Fdocs","TremendousJudge",[142,103,32,143,10,30],"14387587","maker\u002Fpositive\u002Fdocs",[],[146,151,156,161,166,170],{"id":147,"name":148,"points":149,"category":150},"14409760","Notational",257,"productivity",{"id":152,"name":153,"points":154,"category":155},"14411328","Funky Karts",251,"games",{"id":157,"name":158,"points":159,"category":160},"14402738","Triplebyte quiz",227,"learning_science",{"id":162,"name":163,"points":164,"category":165},"14409553","browseemall.com",129,"languages",{"id":167,"name":168,"points":169,"category":19},"14409255","fontjoy",121,{"id":171,"name":172,"points":173,"category":165},"14395087","wireworld-nim",115,false,"v2",{"id":177,"name":5,"line":6,"ai":174,"cat":19,"year":12,"points":13,"comments":14,"rec":27,"s":178,"top":17,"kw":179,"maker":10,"domain":5,"tier":18,"attempts":32,"strip":180,"url":9,"mix":181,"praise":58,"objection":-1,"sub":20},14376821,0.12,[23,24,25,26],"303330300530",[30,31,32,32],1794036555433]