125 reputation
6
bio website trailbehind.com
location
age
visits member for 3 years, 4 months
seen Feb 7 '12 at 23:30

Co-founder of TrailBehind, Inc. Our mobile mapping platform powers the best hiking app, the best boating app, the only real-time whale-tracking app, the as-official-as-it-gets Burning Man app, and other apps for the network's fringe.

Check out Gaia GPS, Whale Alert, Marine Charts, Shark Net, Offline Topo Maps, EFB (Flight Charts), Benchmark California Atlas, Fine Local Wine, and StopWatch+.

Email me at andrew@gaiagps.com, particularly if you live near Berkeley.

http://twitter.com/trailbehind http://github.com/trailbehind


Sep
24
awarded  Autobiographer
Feb
7
comment Calculate ascent from a a path with elevation data
What if they go up and down 3 hills? I think maybe the algorithm should be taking critical altitude changes of a given tolerance.
Feb
7
revised Calculate ascent from a a path with elevation data
added 82 characters in body
Feb
7
asked Calculate ascent from a a path with elevation data
Jan
6
awarded  Teacher
Jan
6
awarded  Student
Oct
26
accepted How do I solve this matrix equation?
Oct
26
comment How do I solve this matrix equation?
Sorry, I am new to this. I have adjusted the syntax.
Oct
26
revised How do I solve this matrix equation?
added 130 characters in body
Oct
26
asked How do I solve this matrix equation?
Jun
24
comment How do I calculate where to plot a point on a document, given other reference points?
I ended up translating to Obj-C, so I posted that as an answer as well.
Jun
24
answered How do I calculate where to plot a point on a document, given other reference points?
Jun
24
awarded  Scholar
Jun
24
awarded  Supporter
Jun
24
comment How do I calculate where to plot a point on a document, given other reference points?
There should be some way to express thanks other than up votes. If you are ever in Berkeley, I will buy you a beer.
Jun
24
accepted How do I calculate where to plot a point on a document, given other reference points?
Jun
23
comment How do I calculate where to plot a point on a document, given other reference points?
I have edited my question a bit... I think your answer is right, but still beyond me.
Jun
23
revised How do I calculate where to plot a point on a document, given other reference points?
added 454 characters in body
Jun
23
comment How do I calculate where to plot a point on a document, given other reference points?
Thanks for pointing this out. In this case, the area is very small, and can be assumed to be flat,
Jun
23
awarded  Editor