How to make 3D Plots in Matlab if I have data of x, y, z ?

How to make 3D Plots in Matlab if I have data of x, y, z ?

I have file data of x, y, z and I want to use this data to make 3D Plots. Then I try to use "vq = griddata(x,y,z,v,xq,yq,zq)" but i don't know how to set 'v' veriable and how to define a regular grid '[xq,yq,zq] = meshgrid(..?..)'. When I try to set v and set [xq,yq,zq] same like example but it's error

[Dyuman Joshi]

Why not use plot3 directly?

plot3(x,y,z)

[Steven Lord]

When I try to set v and set [xq,yq,zq] same like example but it's error

Please show us your code and the full and exact text of the messages you receive when you run your code (all the text displayed in orange and/or red in the Command Window.) The messages may be useful in determining what's going on and how to avoid the warning and/or error.

Answer 1

[Daksh]

I understand that you wish to make 3D plots in MATLAB with given X,Y and Z dimensional data.

Kindly refer to the MATLAB documentation for plot3() using this link:

https://in.mathworks.com/help/matlab/ref/plot3.html

plot3(X,Y,Z) line plots coordinates in 3-D space.

• To plot a set of coordinates connected by line segments, specify X, Y, and Z as vectors of the same length.

for example:

x = 0:pi/50:10*pi;
y = sin(x);
z = cos(x);
plot3(z,y,x)

Hope this helps!