# forum.alglib.net

ALGLIB forum
 It is currently Sat Jan 19, 2019 2:23 pm

 All times are UTC

### Forum rules

1. This forum can be used for discussion of both ALGLIB-related and general numerical analysis questions
2. This forum is English-only - postings in other languages will be removed.

 Page 1 of 1 [ 2 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: Numerical curvature using osculating circlePosted: Thu Nov 02, 2017 7:46 am

Joined: Thu Nov 02, 2017 7:41 am
Posts: 1
I would like to calculate numerical curvature using the osculating circle method. I have grid based data in terms of latitude and longitude(equal distance and equal angle) in a cylindrical projection. I have contour curves on this grid connecting points of equal height(bounding box essentially). Let us assume Euclidean space. So what I do know is that the inverse of the radius of the osculating circle is the curvature. What happens when one of the contour points(small curvature flat contour line hence large osculating circle) is on the boundary of the grid and the osculating circle goes beyond the boundaries of the bounding box ? Is this allowed because the osculating circle is now drawn over points where the latitude and longitude are meaningless from a physical standpoint ?

Top

 Post subject: Re: Numerical curvature using osculating circlePosted: Thu Nov 02, 2017 9:02 am

Joined: Fri May 07, 2010 7:06 am
Posts: 838
Hard to tell... Sorry, I am not familiar with this method, and it is not implemented in ALGLIB :(

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 2 posts ]

 All times are UTC

#### Who is online

Users browsing this forum: No registered users and 1 guest

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot post attachments in this forum

Search for: