There are several software and codes available for plotting contour maps. Tecplot is probably the most widely used software. Alternatively, you can use Matlab, Origin, etc. There is one that I often use called Dplot. A free trial version of this software might be available online. All you need are the coordinates of your data points and their corresponding hardness values.

I usually use MATLAB, MINITAB and ORIGINS also can use in this case

Dear Dr. Koohbor and Mr. Ghasemi thank you so much. Your helps are very useful.

Hi Sina,

I used Sigmaplot. It is a very simple and user-friendly software. Most of the features are like Excell. I used to draw maps like the one you presented with this software.

Best,

Farhad