| forum.alglib.net http://forum.alglib.net/ |
|
| Non-uniform data for cubic spline interpolation? http://forum.alglib.net/viewtopic.php?f=2&t=3493 |
Page 1 of 1 |
| Author: | bcatanzaro [ Sun Jan 03, 2016 8:53 pm ] |
| Post subject: | Non-uniform data for cubic spline interpolation? |
I want to interpolate my data to a 2D grid. The data is a scalar field in two dimensions (e.g. F(i,j)). The data is not in a grid and I want to interpolate it to a grid, using bicubic or bilinear interpolation. From what I can see, all of the spline routines assume an evenly spaced set of data. Is there an interpolation routine that accepts a "cloud" of points? |
|
| Author: | Sergey.Bochkanov [ Tue Jan 05, 2016 7:45 pm ] |
| Post subject: | Re: Non-uniform data for cubic spline interpolation? |
No, linear/cubic spline interpolation is inherently "regular". Maybe RBF fitting will be good solution, although approximate one... |
|
| Page 1 of 1 | All times are UTC |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|