Determing intermediate points in 3D mesh plot

Question

SUSHMA MB 2015-1-15

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评论： SUSHMA MB 2015-1-16

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

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Answer 1

Alessandro Masullo 2015-1-15

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https://ww2.mathworks.cn/matlabcentral/answers/170002-determing-intermediate-points-in-3d-mesh-plot#answer_164940

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If the points are on regular grid, you can use interp2:

interp2(x,y,z,x0,y0,'cubic')

Otherwise, you can scatteredInterpolant.

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SUSHMA MB 2015-1-16

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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