W-M function to plot 3d fractal surfaces

I want to plot a fractal 3D surface using W-M function.

Here is my result:

It is different from fractal surfaces from other journal articles like this:

piture from An adhesive wear model of fractal surfaces in normal contact, X. Yin, K. Komvopoulos

I know maybe it can be resolved by increasing x and y number, but it takes a lot of time.

So, can anyone help me optimize the code?

Thanks!

[KSSV]

You need to use loops in myF.m file....read about vectorizing the calculations. Read about element by element calculations.

[haojie men]

Thanks! I will try.

Answer 1

[Sulaymon Eshkabilov]

Hi,

Here are corrected codes of yours. One more important note that it is not a good practice to call your m-file with a MATLAB built-in fcn or command name, e.g., plot, grid, legend, exp, clc, ....

Good luck.

[haojie men]

Thanks!

It looks better than before. It now looks like this:

But it is still different from X. Lin's result. Maybe the data is optimized by some method to remove saliens.

[NAN ZHANG]

Have you notice the units of X and Y? it's 'um' in Lin's paper, and 'm' in your program. Try again.

Answer 2

[Artos Cen]

Hi

Just wanted to check up if you have already solved the problem yet. Thanks!