irregular data interpolation
 

Hi. All~ I want to interpolate data from irregular grid to irregular grid.

i.e.> I have input data (x1,y1,z1) and I want to get the output (x2,y2,z2). here, (x1,y1,z1) and (x2,y2) are given.

Please, Help me! and Thank you in advance

Re: irregular data interpolation
 

The best interpolation method for this is the "Natural Neighbours" technique.

http://wwwrses.anu.edu.au/geodynamics/nn/nn.html

You can also use least squares (There are many variations of this technique)

Re: irregular data interpolation
 

Thank you for your help. and Can I get the source code? Is it free or pay for it?

Re: irregular data interpolation
 

You can ask the authors of the site I suggested for source code. They also have a paper discribing the technique. You could get this paper and then implement the interpolation technique yourself.

Good luck,

Jeff

Re: irregular data interpolation
 

Thank you,Mr.Franklin ! I will ask and I'll do my best. Thank you for your useful advice!