Determing intermediate points in 3D mesh plot

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i have a series of x, and y points eg: x=1,2,3 and y=1,2,3 and i have z =[10,20,30;15,25,35;30,40,50] and i have plotted a mesh grid using these values as mesh(x,y,z); now how can i determine the value of 'z' for corresponding x=1.2 and y=2.7 coodinates

Accepted Answer

Alessandro Masullo
Alessandro Masullo on 15 Jan 2015
If the points are on regular grid, you can use interp2:
interp2(x,y,z,x0,y0,'cubic')
Otherwise, you can scatteredInterpolant.
  1 Comment
SUSHMA MB
SUSHMA MB on 16 Jan 2015
Thank you for the reply....but im not able to use scatteredInterpolant function. Its showing error as "Undefined function 'scatteredInterpolant' for input arguments of type 'double'."

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