Extract data between 2 point over a 2d matrix.

Hello!

Im trying to extract the batrymetry data between 2 coordinate points (a and b). I found the cordinates position of my LON and Lat values, and NOW I need to find the way to extrac a line of data between those 2 points, I will apreciate any suggestions, Thanks.

LAT        3121x1681                     
LON        3121x1681                         
depth      3121x1681

pcolor(LON,LAT,depth);

Answer 1

[Walter Roberson]

improfile() or interp2() (which is what improfile uses)

You do have a potential issue if you are using a nonlinear coordinate space over a region large enough for the nonlinearity to be important. You would have to be careful about which space you are interpolating in.

[Claudio Iturra]

Thanks Walter!