Take the 2-minute tour ×
MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.

I have a set of isolines points ( or contour points) such as this:

alt text

Each point has their own respective X, Y and Z. Since they are isolines, that means that all of the points will have a unique X-Y pair, i.e., they will be no two points with the same X and Y but different Z.

Now, is there any algorithm, or any software packages ( either in C# or matlab) that I can use to interpolate this isoline points into full 3D surface points?

P/S: I am not just the final output, I am interested in getting the interpolated lines myself so that I can plot the surface myself.

share|improve this question

1 Answer 1

up vote 1 down vote accepted

See these papers:

W. Barrett, E. Mortensen, and D. Taylor. An image space algorithm for morphological contour interpolation. In Proceedings of Graphics Interface'94, pages 16-24, 1994.

M. B. Gousie and W. R. Franklin. Converting Elevation Contours to a Grid. In SDH’98, Vancouver, 1998. http://www.ecse.rpi.edu/Homepages/wrf/research/p/contour.pdf.

If you can read (or guess) Portuguese, see

http://w3.impa.br/~rbs/geoinfo2000/

http://w3.impa.br/~rbs/geoinfo2001/

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.