3D contour from obtained data

Hello! I

I have a file which contains 3 coordinates (x,y,z) and the value of the function in these coordinates. What code should I use to plot a 3D contour plot?

I attached a picture as an example of what I want to get. Tje contour of the figure will be different, but I know how to plot it.

-----------------------------------------------------------------------------

-1 -1 -1 -20

-0.98 -1 -1 10

-0.96 -1 -1 1

-0.94 -1 -1 25

-0.92 -1 -1 -5

-0.9 -1 -1 6

-0.88 -1 -1 7

-0.86 -1 -1 6

-0.84 -1 -1 9

-0.82 -1 -1 10

-0.8 -1 -1 -2

-0.78 -1 -1 -18

-0.76 -1 -1 -15

-------------------------------------------------------------------------------

File data.txt has 1030302 rows, 9 columns, but only the first 4 columns are important for me.

[KSSV]

It depends is your data is structured or unstructured. Attach your data.

[ANKUR KUMAR]

You can take a look into this document:

https://in.mathworks.com/help/matlab/ref/contour3.html

[Daria Lonkina]

@KSSV I'm attaching file with data. I'l be wery happy of you can help me!

The first three rows are coordinates, and the fourth row is a nessecary the value of function for me.

Answer 1

[Shadaab Siddiqie]

From my understanding you want to create a 3d contour. You can refer contour3.