On 2 July 2010 08:52, Stephan Plepelits sk...@xover.htu.tuwien.ac.at wrote:
On Mon, Jun 28, 2010 at 12:06:04PM -0400, Matthias Julius wrote:
Stephan Plepelits sk...@xover.htu.tuwien.ac.at writes:
On Sun, Jun 27, 2010 at 07:11:53PM -0500, Nolan Darilek wrote:
3. In dusting off my disused
On Mon, Jun 28, 2010 at 12:06:04PM -0400, Matthias Julius wrote:
Stephan Plepelits sk...@xover.htu.tuwien.ac.at writes:
On Sun, Jun 27, 2010 at 07:11:53PM -0500, Nolan Darilek wrote:
3. In dusting off my disused (and never that good to begin with :) math
skills from over a decade in my
Example:
Your coordinates (G): (2, 3)
Your road segment (AB): (1, 1) - (4, 5)
Therefore you get:
Function for all points on AB: (1, 1) + t*(3, 4) (for 0=t=1)
Normal vector to AB (n): (-4, 3)
Unified normal vector to AB (n0): (-4/5, 3/5) = (-0.8, 0.6)
You can use the
On Fri, Jul 02, 2010 at 11:24:19AM +0200, Marc Schütz wrote:
Distance form: | AG * n0 | ( * being a scalar product )
Our distance: | (1, 2) * (-0.8, 0.6) | = | -0.8 + 1.2 |
- distance: 0.4
The length of a vector (a,b) is sqrt(a^2 + b^2), not abs(a+b)!
Thus |(1,2) * (-0.8,0.6)|
Stephan Plepelits sk...@xover.htu.tuwien.ac.at writes:
On Sun, Jun 27, 2010 at 07:11:53PM -0500, Nolan Darilek wrote:
3. In dusting off my disused (and never that good to begin with :) math
skills from over a decade in my past, I'm thinking that a vector-based
solution might work. I am
nd == Nolan Darilek no...@thewordnerd.info writes:
nd Basically, if a user reaches an intersection and turns onto a new
nd street, I'd like to provide feedback that he is on a new way as soon as
nd I can. Granted, GPS inaccuracy makes instantly doing so impossible, but
nd when the user
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi, thanks for giving me something to google. :) I have a few more
questions now that I've had more time to sit with this problem, also
after having read your message.
1. My problem isn't routing, but rather providing accurate street-level
On Sun, Jun 27, 2010 at 07:11:53PM -0500, Nolan Darilek wrote:
2. As a blind pedestrian, I'm not likely to travel faster or slower on
streets of different types. Vehicular navigation of course is another
story, but in this instance, vehicular nav is secondary. Also, whether
or not a street is
8 matches
Mail list logo
