How to draw a specific figure

Hi there.

I have no idea how to draw these types of figures. I want to know how these types of diagrams should be drawn and I need a sample code for these types of shapes. The desired figures is attached.

Thanks in advance for helping.

Answer 1

[Abdolkarim Mohammadi]

If you have the data for the edges of the curves, you can use patch(). If multiple curves belong to one or more surfaces, you can use contour().

[mohammad heydari]

Can you give an example? I still do not fully understand it.

Thank you

[Abdolkarim Mohammadi]

There are many examples in the documentation page of patch() and contour().

https://www.mathworks.com/help/matlab/ref/patch.html

https://www.mathworks.com/help/matlab/ref/contour.html

[mohammad heydari]

Thank you very much indeedd.