![]() ![]() because neither menion nor 90% of the geocaching-infested locus crowd is interested in altitudes :-). Locus could automate this with the overpass-api into a single menu item on long tap. nobody does it just to quickly check out an interesting trail on a map. After completing your ride, make sense of the data collected on your speed, distance, elevation, and more. calculate a track with brouter or whatever. find some start and end points that match your thingy. You can do the same thing manually right now. or display the grade at the current point. You'd then query their alitude values either from offline srtm data or online and could render an instant profile. If there is a "way" (osm slang for track), it returns all the "nodes" (osm slang for points) that make up the (part of) road/path/whatever. OSMs overpass-API can be used to find out what is below (or sufficiently close) to your tap. The trick is to get this track data realtime then you tap your map anywhere. if your eyes and brain can sort of figure out how steep it is at a certain point, so can a software. Just look at one of your altitude profiles. Obviously you have to deal with funky data errors. This kind of task is what machines excel at.Ĭalculating grades for existing tracks in the database isnt exactly rocket science. In my experience, the reported grade is not random, it strongly correlated with the slope observed in the field.Ĭurrently to obtain the grade of the road in Locus, I am forced to find the altitude lines in the vicinity and try to assess the slope based on their distance and the chosen zoom level. Fortunately, it is easy to check the grades calculated by existing routing software, which does manage to calculate a usable grade. This kind of task is what machines excel If the calculated grade were indeed (as good as) random, I would also argue against its inclusion in Locus. Just try a route in an area you are familiar with, and see if the calculated grades are useful.Ĭurrently to obtain the grade of the road in Locus, I am forced to find the altitude lines in the vicinity and try to assess the slope based on their distance and the chosen zoom level. And none of this is specific to that mapping site AFAIK all apps for cycle planning are able to report road grade at a point on the route. GPS altitude is calculated through a satellite fix that determines the height above mean sea level, it is not related to atmospheric pressure or RADAR altitude, it is based on a geometric calculation of GPS satellites. It can even draw the grade along with the elevation, display maximal grade in the statistics, etc. Drop pins in places you want to go and the app configures a route. You can hover over any point on the route, or on the elevation graph, and the software reports the grade. Plot your course dependent on weather, elevation and road curviness. In my experience, the reported grade is not random, it strongly correlated with the slope observed in the field.įor example, take a look at (or any other route on that site). If the calculated grade were indeed (as good as) random, I would also argue against its inclusion in Locus. ![]()
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