[{"data":1,"prerenderedAt":299},["ShallowReactive",2],{"project-17685232":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":29,"sentiment":30,"stance_mix":31,"scored_comments":36,"aspects":37,"strip":44,"post_text":46,"what":47,"said":77,"maker_in_thread":180,"shape":189,"grid":192,"attempts":256,"same_week":261,"maker_shows":34,"maker_hidden":291,"reader_version":292,"card":293},"17685232","Polyhedra Viewer","Polyhedra Viewer: app to explore the relationships and transformations between various convex polyhedra.","maker","Show HN: Polyhedra Viewer","https:\u002F\u002Fpolyhedra.tessera.li","polyhedra.tessera.li","tesseralis",1533353548,2018,123,30,348,2155,17,"notable","learning_science","interactive math visualisation","web_app",[24,25,26,27,28],"polyhedra","convex polyhedron","wythoff construction","conway operators","geometry visualization","loved",0.346,{"positive":32,"neutral":33,"mixed":34,"critical":35},7,6,1,0,14,{"execution":38,"idea":40,"design":41,"docs":43},{"positive":39,"critical":35},2,{"positive":34,"critical":35},{"positive":42,"critical":35},3,{"positive":35,"critical":35},[35,45,35,45,35,35,35,35,35,42,42,35,42,35,42,35,35,35,45,42,45,35,35,45,42,35,45,42,35,45],5,null,{"problem":48,"audience":54,"pricing":46,"motivation":58,"time_to_build":62,"stack":66,"openness":74,"stage":75,"team_size":76},{"value":49,"source":7,"evidence":50},"Relationships and transformations between polyhedra are hard to access for non-experts",[51],{"id":52,"by":11,"text":53},"17685251","Polyhedra Viewer: app to explore the relationships and transformations between various convex polyhedra. This has been a passion project of mine for the last six months (with…",{"value":55,"source":7,"evidence":56},"People new to polyhedra and mathematics enthusiasts",[57],{"id":52,"by":11,"text":53},{"value":59,"source":7,"evidence":60},"Passion project to make polyhedra accessible and beautiful",[61],{"id":52,"by":11,"text":53},{"value":63,"source":7,"evidence":64},"Six months, with earlier versions going back further",[65],{"id":52,"by":11,"text":53},[67],{"value":68,"source":69,"evidence":70},"three.js","commenter",[71],{"id":72,"by":11,"text":73},"17688806","I don't have gltf, but you can download the .obj files (e.g. at polyhedra.tessera.li\u002Ftetrahedron\u002Finfo), which three.js can read.","open_source","unknown","solo",{"praise":78,"objections":101,"requests":115,"questions":148,"alternatives":164},[79,94],{"value":80,"source":69,"evidence":81},"Beautiful, well-presented and informative",[82,86,90],{"id":83,"by":84,"text":85},"17685316","kelsolaar","Congratulations, lot of work put in a very well refined and presented page!",{"id":87,"by":88,"text":89},"17687653","lrc","It's a treat. It's like a well-produced color mathematical atlas come to life.",{"id":91,"by":92,"text":93},"17685570","apexal","This is extremely informative and mesmerizing!",{"value":95,"source":69,"evidence":96},"Fun toy for understanding shape relationships",[97],{"id":98,"by":99,"text":100},"17685760","MrEldritch","I immediately tried to construct my favorite obscure polyhedron (the rhombic dodecahedron) and found I simply could not take the dual of the cuboctahedron! :P That aside, this is…",[102,108],{"value":103,"source":7,"evidence":104},"Catalan solids not included yet",[105],{"id":106,"by":11,"text":107},"17685774","Unfortunately the Catalan solids aren't in there yet, because I wanted to focus on the regular-faced polyhedra for now! Perhaps in a future update :)",{"value":109,"source":69,"evidence":110},"Definition of uniform polyhedra is inaccurate",[111],{"id":112,"by":113,"text":114},"17687380","yshklarov","This is fantastic, I love it! I've been looking for something like this. Your definition of \"uniform\" doesn't look quite right: It's not enough for the symmetry group to be…",[116,127,134,141],{"value":117,"source":69,"evidence":118},"Keep shapes spinning with inertia after a swipe",[119,123],{"id":120,"by":121,"text":122},"17693724","grey-area","Is there any way to keep the objects spinning? It'd be nice if you gave them a flick and then they kept spinning under their own inertia.",{"id":124,"by":125,"text":126},"17687114","dosy","The shapes remind me of chemistry, molecules, enzymes, proteins, viruses. I would add 1 thing only: physics to the interactions, so the shape will keep spinning after I swipe…",{"value":128,"source":69,"evidence":129},"Net export for printable paper models",[130],{"id":131,"by":132,"text":133},"17690495","sgroppino","Excellent stuff!! It'd be great if you could flatten the shapes to printable A4 paper so kids can cut and build real models (and paint them, etc).",{"value":135,"source":69,"evidence":136},"Stellation and export features",[137],{"id":138,"by":139,"text":140},"17686368","mpax","Really neat! 2 features which might cool: stellation and .obj export Iirc these things apply to 2d tilings also? I remember trying to do some esher-esque drawings using such…",{"value":142,"source":69,"evidence":143},"VR mode",[144],{"id":145,"by":146,"text":147},"17685936","andybak","Wonderful. 1. Do you plan an open source licence for any of the underlying code? 2. Is the construction parametric or is it based on a large catalogue of the various polyhedra…",[149,153,157],{"value":150,"source":69,"evidence":151},"Is the code open source?",[152],{"id":145,"by":146,"text":147},{"value":154,"source":69,"evidence":155},"Can operations be stacked?",[156],{"id":145,"by":146,"text":147},{"value":158,"source":69,"evidence":159},"Can models be exported as glTF?",[160],{"id":161,"by":162,"text":163},"17687689","hguhghuff","How would I export these shapes for use in threejs or other web based 3d display? Can they be exported as gltf format?",[165,169,176],{"value":166,"source":69,"evidence":167},"Wythoff and Conway operator tools by a commenter (Unity)",[168],{"id":145,"by":146,"text":147},{"value":170,"source":69,"evidence":171},"Polyhedronisme",[172],{"id":173,"by":174,"text":175},"17688633","jacobolus","Great work! Have you seen this one? https:\u002F\u002Flevskaya.github.io\u002Fpolyhedronisme\u002F Also, you have probably seen Wenninger’s books, but if not those are great.",{"value":177,"source":7,"evidence":178},"George Hart's virtual polyhedra",[179],{"id":52,"by":11,"text":53},{"comments":181,"answered":182,"key":183},10,4,[184,185,188],{"id":52,"text":53},{"id":186,"text":187},"17685607","Thank you! Did you make sure to check out the individual polyhedra (e.g. https:\u002F\u002Fpolyhedra.tessera.li\u002Ftetrahedron)",{"id":106,"text":107},{"commenters":190,"max_depth":45,"maker_replies":181,"first_comment_mins":45,"lifespan_hours":191},15,106,[193,195,197,199,201,202,205,209,211,213,215,216,218,220,223,224,227,229,231,234,235,236,238,240,244,246,248,251,254,255],[52,35,35,194,11,34],"project\u002Fneutral\u002Fidea",[83,35,45,196,84,35],"maker\u002Fpositive\u002Fexecution",[186,35,35,198,11,34],"maker\u002Fneutral\u002Fnone",[98,35,45,200,99,35],"project\u002Fpositive\u002Fidea",[106,35,35,198,11,34],[203,35,35,204,174,35],"17688637","commenter\u002Fneutral\u002Fnone",[206,35,35,207,208,35],"17688919","other\u002Fneutral\u002Fnone","DonHopkins",[210,35,35,204,99,35],"17693854",[212,35,35,207,174,35],"17694505",[120,35,42,214,121,35],"project\u002Fneutral\u002Fdesign",[131,34,42,194,132,35],[217,34,35,198,11,34],"17692669",[112,39,42,219,113,35],"project\u002Fmixed\u002Fdocs",[221,39,35,222,11,34],"17688855","maker\u002Fneutral\u002Fdocs",[145,42,42,194,146,35],[225,42,35,226,11,34],"17686001","maker\u002Fneutral\u002Fexecution",[228,42,35,204,146,35],"17686098",[230,42,35,204,11,34],"17686143",[232,42,45,233,146,35],"17686289","project\u002Fpositive\u002Fdesign",[124,182,42,214,125,35],[87,45,45,233,88,35],[173,33,35,237,174,35],"other\u002Fpositive\u002Fnone",[239,33,35,198,11,34],"17688792",[241,32,45,242,243,35],"17690858","project\u002Fpositive\u002Fexecution","perilunar",[138,245,42,194,139,35],8,[247,245,35,198,11,34],"17688819",[249,245,45,250,139,35],"17715659","maker\u002Fpositive\u002Fnone",[161,252,42,253,162,35],9,"project\u002Fneutral\u002Fnone",[72,252,35,198,11,34],[91,181,45,233,92,35],[257,260],{"id":258,"t":259,"points":42,"comments":35},"17657421",1533072949,{"id":4,"t":12,"points":14,"comments":15},[262,267,272,277,282,286],{"id":263,"name":264,"points":265,"category":266},"17716542","Pts.js",611,"languages",{"id":268,"name":269,"points":270,"category":271},"17689014","lazygit",551,"dev_tools",{"id":273,"name":274,"points":275,"category":276},"17679148","oalley",455,"consumer_social",{"id":278,"name":279,"points":280,"category":281},"17672247","Standups.io",266,"productivity",{"id":283,"name":284,"points":285,"category":266},"17673999","rootfinder",183,{"id":287,"name":288,"points":289,"category":290},"17696367","Dancemusic.wtf",152,"games",false,"v2",{"id":294,"name":5,"line":6,"ai":291,"cat":20,"year":13,"points":14,"comments":15,"rec":29,"s":295,"top":18,"kw":296,"maker":11,"domain":10,"tier":19,"attempts":39,"strip":297,"url":9,"mix":298,"praise":80,"objection":103,"sub":21},17685232,0.35,[24,25,26,27,28],"050500000330303000535005305305",[32,33,34,35],1793990977513]