2D Array Interpolation

Question

i am currently working on a 3D game in c#. I have a 2 dimensional array called data where i get a z value for my x and y

Answer 1

You have two known points:

A = (1,2) = 4
B = (2,4) = 5

And you want to calculate the value

C = (1.5, 2.5) = ???

Here's an idea that follows from your linear example. Calculate the linear for each axis. So start with X:

Ax = (1) = 4
Bx = (2) = 5
so you calculate Cx as:
Cx = (1.5) = 4.5

Then calculate the linear for the y-axis:

Ay = (2) = 4
By = (4) = 5
and calculate Cy as:
Cy = (2.5) = 4.25

Then average Cx and Cy to get C(x,y)

C(1.5, 2.5) = (Cx + Cy) * 0.5 = 4.375