Using interp2 to interpolate points on a path

load('ProjectTerrain.mat');

for k=1:500
xxx=[-4.8:k:4.8];
yyy=[4:k:-4.8];
a(k)=interp2(x,y,T,xxx,yyy);
end

I have a dataset of 3D terrain data that gives the elevation at certain points (x,y,T), and am trying to interpolate points on a path 500 steps long but am not sure how to start. The coordinates for the start and end points are in xxx and yyy.

Answer 1

[Chad Greene]

The loop is unnecessary. Try something like this:

load('ProjectTerrain.mat')

xxx = linspace(-4.8,4.8,500); 
yyy = linspace(4,-4.8,500); 

TTT = interp2(x,y,T,xxx,yyy);