Point data to a contour map

Hi.

I am writing a thesis and I got data from x,y,z locations of single point data with a velocity measurement of each location:

x  y  z  va
-1.3  1.98  0.1  0.13
-1.3  1.98  0.6  0.1
-1.3  1.98  1.1  0.11
-1.3  1.98  1.6  0.15
-1.3  1.98  2.6  0.05
0  1.98  0.1  0.31
0  1.98  0.6  0.16
0  1.98  1.1  0.16
0  1.98  1.6  0.15
0  1.98  2.6  0.12
1.3  1.98  0.1  0.1
1.3  1.98  0.6  0.04
1.3  1.98  1.1  0.21
1.3  1.98  1.6  0.15
1.3  1.98  2.6  0.1
-0.695  0  0.1  0.21
-0.695  0  0.6  0.21
-0.695  0  1.1  0.1
-0.695  0  1.6  0.13
-0.695  0  2.6  0.11
0  0  0.1  0.16
0  0  0.6  0.19
0  0  1.1  0.21
0  0  1.6  0.2
0  0  2.6  0.13
0.695  0  0.1  0.27
0.695  0  0.6  0.08
0.695  0  1.1  0.2
0.695  0  1.6  0.34
0.695  0  2.6  0.21
0  0.695  0.1  0.03
0  0.695  0.6  0.09
0  0.695  1.1  0.26
0  0.695  1.6  0.26
0  0.695  2.6  0.28
0  -0.695  0.1  0.09
0  -0.695  0.6  0.25
0  -0.695  1.1  0.19
0  -0.695  1.6  0.11
0  -0.695  2.6  0.18
1.3  -1.075  0.1  0.09
1.3  -1.075  0.6  0.12
1.3  -1.075  1.1  0.1
1.3  -1.075  1.6  0.26
1.3  -1.075  2.6  0.13
0  -1.075  0.1  0.26
0  -1.075  0.6  0.22
0  -1.075  1.1  0.16
0  -1.075  1.6  0.15
0  -1.075  2.6  0.12
1.3  -1.075  0.1  0.17
1.3  -1.075  0.6  0.15
1.3  -1.075  1.1  0.16
1.3  -1.075  1.6  0.03
1.3  -1.075  2.6  0.12

Can anyone help me create a 2D plot of x-z values with a contour or anything similar so I can compare it with contour data from ANSYS.

Kind regards, Michelle

Answer 1

[Star Strider]

What exactly do you want to do?

If ‘M’ is your matrix, consider that many of your ‘va’ values are collinear:

figure(1)
stem3(M(:,1), M(:,3), M(:,4))
grid on

[Michelle]

This code gives me only dots with lines, I need a surface of a x-z value.

Answer 2

[Michelle]

Hi I want to make a color plot of the x,z values with the different colors of va for the point. I can do point values, but want a whole gridsystem colored. So I guess I need to integear or something

[Star Strider]

integear?

Answer 3

[Michelle]

Sorry not a integear but a interpolation or aomeething similar. I need to create a contour map of dot point of data in x-z direction