How to tilt the plot on the right to make it like the one on the left?

Answer 1

[Star Strider]

Tilting it is relatively straightforward with the rotate function —

[X,Y,Z] = peaks(50);

figure
surf(X,Y,Z)
xlabel('X')
ylabel('Y')
zlabel('Z')
shading('interp')

figure
h = surf(X,Y,Z);
xlabel('X')
ylabel('Y')
zlabel('Z')
rotate(h,[-1 0 0], 20)
view(85,10)
shading('interp')

For some reason, rotate is distorting the surface and it shouldn’t. It’s never done that before when I’ve used it. I’m going to submit a Bug Report about it

.

[Khalil Sabour]

The problem is I had the right plot in the image from a matrix 341x428, so I don't have the X Y Z coordinates to do the rotation.

[Star Strider]

The ‘X’ and ‘Y’ coordinates are only required to correctly orient the ‘Z’ surface with respect to their respective axes. They are not absolutely required for the plot.

So, for example ...

[X,Y,Z] = peaks(50);

figure
h = surf(Z);
xlabel('X')
ylabel('Y')
zlabel('Z')
rotate(h,[-1 0 0], 20)
view(85,10)
shading('interp')
axis('equal')

... works just as well. (I added the axis call to avoid distortion in the plot. It is not required.)

.

[Khalil Sabour]

Thank you, and I have another question, after tilting, how to measure the profile parameters such as Ra, Rz, Rt, etc.?

[Star Strider]

I have no idea what those are.

You need to define them and how to calculate them.

Answer 2

[Cameron]

Use the "View" under the plot handle to update this.

[X,Y,Z] = peaks(250);
p = surf(X,Y,Z,'EdgeColor','none');
p.Parent.View = [10 35];