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Nice app. Can you explain why you chose ArgGis as your tile provider [1]? A lot of the struggle of making a public map app is that map tiles are hard to host and not cheap to buy at scale.
[1] https://github.com/jamealg/KT-companion/blob/master/scripts/...
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I wish I had time to have built that part myself! I'm leaning heavily on open source plugins like these [1][2]. The gradients are representative of elevation. So red = highest points along the trail and green = lowest points. Where you see sharp gradients from green to red is where the steepest slopes are. There is slope graph that can be setup in the plugin configuration.
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
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Very nice work! Sleek interface. I'll need to field test it soon ;)
Have you by any chance also evaluated MapLibre (https://maplibre.org/) as an alternative to Leaflet. I'm just wondering if anyone has any insights on how they compare. I use MapLibre for one of my side-projects [1].
What are you using as source for height data (I see the curve colors represent the altitude). I've noticed that one of the most commonly used datasets [SRTM](https://lpdaac.usgs.gov/products/srtmgl1v003/) has some deviation compared to OSM data in high latitudes. E.g. some peak locations from OSM don't match to the contour lines from SRTM. But I have never found any further infos about this.
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Trail-Sense
An Android app that uses your phone's sensors to assist with wilderness treks or survival situations.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
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Google had an app called MyTracks[1] a while ago which was a very nice and simple way to have an offline google map and record your tracks. They deprecated and open-sourced it. Apparently, it's living on as OpenTracks[2].
