Skip to content

Instantly share code, notes, and snippets.

@dret
Created Nov 13, 2015
Embed
What would you like to do?
{ "JTT" : [
{ "track" : {
"title" : "Test Activity",
"desc" : "Simple test activity walking around the block with a heart rate monitor, stopping once, and marking one lap. Recorded with Garmin Fenix 3, uploaded to Garmin Connect, and exported as GPX and TCX. Both exports are crippled because they do not contain all data fields of the activity.",
"segments" : [
{ "data-fields" : ["latitude", "longitude", "elevation", "temperature", "HR" ] },
[
[ 47.407614681869745, 8.553115781396627, 451.79998779296875, "2015-11-13T12:57:24.000Z", 28.0, 76],
[ 47.40762138739228, 8.553108656778932, 451.0, "2015-11-13T12:57:25.000Z", 28.0, 76],
[ 47.407626835629344, 8.553094072267413, 450.0, "2015-11-13T12:57:26.000Z", 28.0, 76],
[ 47.407668409869075, 8.552960716187954, 449.0, "2015-11-13T12:57:33.000Z", 28.0, 78],
[ 47.40770772099495, 8.552867090329528, 448.79998779296875, "2015-11-13T12:57:39.000Z", 28.0, 75],
[ 47.407753402367234, 8.5526111908257, 448.79998779296875, "2015-11-13T12:57:54.000Z", 27.0, 75],
[ 47.40781215950847, 8.552352441474795, 448.20001220703125, "2015-11-13T12:58:04.000Z", 27.0, 73],
[ 47.407849207520485, 8.552198382094502, 448.20001220703125, "2015-11-13T12:58:12.000Z", 27.0, 76],
[ 47.40790771320462, 8.552007442340255, 448.0, "2015-11-13T12:58:23.000Z", 27.0, 75],
[ 47.40796320140362, 8.551924461498857, 447.79998779296875, "2015-11-13T12:58:29.000Z", 27.0, 78],
[ 47.4079969804734, 8.551919935271144, 447.6000061035156, "2015-11-13T12:58:32.000Z", 27.0, 78],
[ 47.408049115911126, 8.551959414035082, 447.20001220703125, "2015-11-13T12:58:37.000Z", 27.0, 77],
[ 47.408086750656366, 8.552005849778652, 446.79998779296875, "2015-11-13T12:58:41.000Z", 27.0, 76],
[ 47.40809513255954, 8.552019177004695, 446.6000061035156, "2015-11-13T12:58:42.000Z", 27.0, 73],
[ 47.408130671828985, 8.552070977166295, 446.20001220703125, "2015-11-13T12:58:46.000Z", 27.0, 70],
[ 47.40816361270845, 8.552097212523222, 446.0, "2015-11-13T12:58:49.000Z", 27.0, 71],
[ 47.40818230435252, 8.552138702943921, 445.6000061035156, "2015-11-13T12:58:51.000Z", 27.0, 71],
[ 47.40825707092881, 8.552154125645757, 445.3999938964844, "2015-11-13T12:58:58.000Z", 27.0, 70],
[ 47.40829017944634, 8.55216016061604, 445.3999938964844, "2015-11-13T12:59:01.000Z", 27.0, 71],
[ 47.40830333903432, 8.552153706550598, 445.20001220703125, "2015-11-13T12:59:03.000Z", 27.0, 71],
[ 47.408308032900095, 8.552153706550598, 445.20001220703125, "2015-11-13T12:59:04.000Z", 27.0, 70],
[ 47.40834197960794, 8.552186479791999, 445.3999938964844, "2015-11-13T13:01:07.000Z", 27.0, 85],
[ 47.40833795629442, 8.552188323810697, 445.3999938964844, "2015-11-13T13:01:08.000Z", 27.0, 84],
[ 47.40833401679993, 8.552198549732566, 445.3999938964844, "2015-11-13T13:01:09.000Z", 27.0, 84],
[ 47.40832010284066, 8.552253786474466, 445.3999938964844, "2015-11-13T13:01:12.000Z", 27.0, 84],
[ 47.40828674286604, 8.552344981580973, 445.0, "2015-11-13T13:01:17.000Z", 27.0, 80],
[ 47.40825455635786, 8.552448330447078, 444.79998779296875, "2015-11-13T13:01:23.000Z", 27.0, 79],
[ 47.40825262852013, 8.552489904686809, 444.79998779296875, "2015-11-13T13:01:26.000Z", 27.0, 80],
[ 47.40821675397456, 8.55262778699398, 444.79998779296875, "2015-11-13T13:01:35.000Z", 27.0, 79],
[ 47.40820610895753, 8.552680592983961, 444.6000061035156, "2015-11-13T13:01:38.000Z", 27.0, 79],
[ 47.40816168487072, 8.552955100312829, 444.6000061035156, "2015-11-13T13:01:52.000Z", 27.0, 76],
[ 47.408138466998935, 8.553202534094453, 444.20001220703125, "2015-11-13T13:02:03.000Z", 27.0, 76],
[ 47.408125810325146, 8.553239582106471, 444.0, "2015-11-13T13:02:05.000Z", 27.0, 75],
[ 47.40811625495553, 8.553247042000294, 443.79998779296875, "2015-11-13T13:02:06.000Z", 27.0, 75],
[ 47.40810167044401, 8.553252154961228, 443.6000061035156, "2015-11-13T13:02:07.000Z", 27.0, 76],
[ 47.40808733738959, 8.553255340084434, 443.6000061035156, "2015-11-13T13:02:08.000Z", 27.0, 77],
[ 47.408021707087755, 8.553288113325834, 444.20001220703125, "2015-11-13T13:02:13.000Z", 27.0, 80],
[ 47.4079795461148, 8.55328886769712, 444.6000061035156, "2015-11-13T13:02:17.000Z", 27.0, 82],
[ 47.40796043537557, 8.553284592926502, 444.79998779296875, "2015-11-13T13:02:19.000Z", 27.0, 83],
[ 47.40791064687073, 8.553258189931512, 445.20001220703125, "2015-11-13T13:02:23.000Z", 26.0, 86],
[ 47.40785448811948, 8.553215442225337, 445.6000061035156, "2015-11-13T13:02:27.000Z", 26.0, 89],
[ 47.40780486725271, 8.553174622356892, 446.20001220703125, "2015-11-13T13:02:32.000Z", 26.0, 92],
[ 47.40777527913451, 8.553162636235356, 446.79998779296875, "2015-11-13T13:02:35.000Z", 26.0, 94],
[ 47.40773663856089, 8.553122906014323, 447.3999938964844, "2015-11-13T13:02:39.000Z", 26.0, 96],
[ 47.40771467797458, 8.553109411150217, 447.6000061035156, "2015-11-13T13:02:41.000Z", 26.0, 98],
[ 47.407703530043364, 8.55310220271349, 448.0, "2015-11-13T13:02:42.000Z", 26.0, 98],
[ 47.407659692689776, 8.553062472492456, 448.79998779296875, "2015-11-13T13:02:46.000Z", 26.0, 101],
[ 47.40764569491148, 8.553053420037031, 449.0, "2015-11-13T13:02:47.000Z", 26.0, 102],
[ 47.40763236768544, 8.553045960143209, 449.20001220703125, "2015-11-13T13:02:48.000Z", 26.0, 103]
]
]
} }
] }
@gfhuertac
Copy link

gfhuertac commented Aug 19, 2016

I like where this is going. I always wanted geojson to handle this, but I do agree that a separate standard may be better.
One comment: the data-fields array is missing timestamp from the list:
["latitude", "longitude", "elevation", "temperature", "HR" ] --> ["latitude", "longitude", "elevation", "timestamp", "temperature", "HR" ]

@tobixen
Copy link

tobixen commented Jun 21, 2021

should it be timestamp or time? I see that time is used in the blog post at https://dret.typepad.com/dretblog/2015/11/gps-data-on-the-web.html

@tobixen
Copy link

tobixen commented Jun 21, 2021

The segments list feels a bit wrong to me. I think it would looks better to have a field data as a sibling to data-fields. I also think that the data presented is not a list of segments but rather a list of points ... or something like that.

@tobixen
Copy link

tobixen commented Jun 22, 2021

@dret
Copy link
Author

dret commented Jun 28, 2021

hard to tell @tobixen, since there is no format definition to validate against. looking at this 6 years later i definitely wouldn't create this "spreadsheet-like" structure with "heading row" with field names and then all "data rows" following that structure. that seems to invite a lot of brittleness.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment