Elevation Profiles?

Post comments or questions about the Field Guide
Post Reply
User avatar
aiwetir
Posts: 603
Joined: December 10th, 2014, 11:54 am
Contact:

Elevation Profiles?

Post by aiwetir » November 5th, 2015, 9:58 am

Is there any interest in including elevation profiles in the Field Guide. With OSM/GraphHopper routing matched with online elevation profile generators and people's gpx files, it would seem quite easy today.

There's probably some larger discussion to be had about it, like do we need to give everyone everything or should they discover things themselves etc. but putting it out there, I can work on these over the winter a bit.
- Michael

User avatar
adamschneider
Posts: 3716
Joined: May 28th, 2008, 10:02 pm
Location: SE Portland
Contact:

Re: Elevation Profiles?

Post by adamschneider » November 5th, 2015, 12:06 pm

All I'll say is that I highly recommend ignoring recorded GPS elevation data. No matter which online profile generator you use, GPS Visualizer can help by replacing a GPS file's elevation data with numbers that come from a DEM database:

http://www.gpsvisualizer.com/convert_in ... ation=auto


(To reduce horizontal noise, I also recommend using GPS Visualizer's "trackpoint distance threshold" filter; see http://www.gpsvisualizer.com/tutorials/ ... lters.html.)

User avatar
Bosterson
Posts: 2317
Joined: May 18th, 2009, 3:17 pm
Location: Portland

Re: Elevation Profiles?

Post by Bosterson » November 5th, 2015, 12:41 pm

I have previously suggested to other Field Guide editors that every hike in the Field Guide should have a trail map of some kind to help readers make sense of the written description. I think between the users on here, we should be able to come up with GPX tracks for most, if not all, of the hikes in the Field Guide. Then we would just need to go about collecting the tracks, making maps, and adding them into the hike pages.

If you have any tracks you'd like to submit for hikes, I'd be happy to make a map and add it to the FG. :)
#pnw #bestlife #bitingflies #favoriteyellowcap #neverdispleased

User avatar
aiwetir
Posts: 603
Joined: December 10th, 2014, 11:54 am
Contact:

Re: Elevation Profiles?

Post by aiwetir » November 5th, 2015, 2:25 pm

adamschneider wrote:All I'll say is that I highly recommend ignoring recorded GPS elevation data. No matter which online profile generator you use, GPS Visualizer can help by replacing a GPS file's elevation data with numbers that come from a DEM database:

http://www.gpsvisualizer.com/convert_in ... ation=auto


(To reduce horizontal noise, I also recommend using GPS Visualizer's "trackpoint distance threshold" filter; see http://www.gpsvisualizer.com/tutorials/ ... lters.html.)

While I do agree with all of this, I think that we wouldn't necessarily need a very accurate profile for the field guide, just something as a reference so people get an idea what they are getting into. OTOH after using dedicated Garmin cycling units, handheld GPS units and GaiaGPS, I've found the 3 of them to be usually within 10% EG of what the FG says.

Something like the attached IMO is fine for the FG, but yes smoothing even that would be a nice touch since the spikes bother my OCD.
Attachments
Hike-CapeLookout.png
- Michael

User avatar
bobcat
Posts: 2768
Joined: August 1st, 2011, 7:51 am
Location: SW Portland

Re: Elevation Profiles?

Post by bobcat » November 18th, 2015, 5:34 pm

I think it would be fine if we added elevation profiles below a map. I'm not going to do it, but if anyone wants to add the profiles, go ahead!

Post Reply