MATLAB Griddata Interpolation: Interpolate Wheel Velocity with 'v4' Method

This code uses the 'griddata' function in MATLAB to interpolate the values of 'zvel_wheel' at new x and z coordinates.

The inputs to the 'griddata' function are:

• x1: a vector of x-coordinates of the original data points
• z1: a vector of z-coordinates of the original data points
• zvel_wheel: a vector of values of the variable we want to interpolate (in this case, the wheel velocity)
• linspace(xmin,xmax,100)': a vector of 100 evenly spaced x-coordinates between 'xmin' and 'xmax'
• linspace(zmin,zmax,100)': a vector of 100 evenly spaced z-coordinates between 'zmin' and 'zmax'
• 'v4': specifies the interpolation method to be used (in this case, the 'v4' method)

The output of the 'griddata' function is a 2D grid of interpolated values, with 'X1' and 'Z1' representing the x and z coordinates of each point in the grid, and 'ZVEL_WHEEL' representing the interpolated values of the wheel velocity at each point.