Mapping very large GPS tracks using HTML and Javascript -

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i'm making blog upcoming bicycle tour , i'd have map showing progress. i've searched hours existing product or service , nothing came close. know it's possible because i've seen done before (https://dl.dropboxusercontent.com/u/19443192/billy/billysroute.html).

i recording each day's ride , getting single .gpx file each day. ideally i'd able upload each day's .gpx online database google drive or dropbox , have map automatically update including new track. nice able embed map on blog, linking map fine.

so far haven't been able find method place many tracks on single online map. tried dissecting example posted above see how made , found writing simple html/javascript might answer. did best reading through google developer pages having no coding experience pretty overwhelmed.

tl;dr questions are:

1) how (https://dl.dropboxusercontent.com/u/19443192/billy/billysroute.html) made and/or how can make similar 1 using several gps tracks? 2) possible build online map displays several .gpx tracks drawn folder in google drive, dropbox or similar?

yes, asking possible. question , how want it. example, wordpress-based blogs, there plugins allow asking for. https://wordpress.org/support/plugin/google-maps-gpx-viewer (and others) may interesting you. if have blog should @ whether has similar features can use or enable.


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