Changing Axes direction with positive z-axis downwards

129 views (last 30 days)
Hello, I would like to change the direction of a 3d plot I am making. By default, Matlab has positive x-axis backwards, y-axis toward left side and z-axis toward upward direction (as in the attached picture). While maintaining the right hand coordinate system, I would like to switch the axis such that z-axis is positive downwards, x-axis toward right side and y-axis toward forward direction.
Here's a part of the code if that's any help.
Thanks for your help in advance!
[x,y,z] = sphere;
figure(1)
surf(x,y,z+1.5)
hold on
p0 = zeros(6,3);
p1 = r_LPSphere0_0';
quiver3(p0(:,1), p0(:,2), p0(:,3), p1(:,1), p1(:,2), p1(:,3))
xlabel('x-axis')
ylabel('y-axis')
zlabel('z-axis')

Accepted Answer

Brian Hart
Brian Hart on 13 Mar 2019
Hi Ryan,
The first step is to change your second line to say
f = figure(1);
This gives you a handle to update the figure properties. To flip the z axis,
f.CurrentAxes.ZDir = 'Reverse'
To change the other two axes, first look at the current viewpoint, called the "camera position":
>> f.CurrentAxes.CameraPosition
ans =
-9.1314 -11.9003 -7.1603
If you change the z position of the view point, you get something that I think matches what you are looking for:
>> f.CurrentAxes.CameraPosition = [-9 -12 +7]
untitled.bmp

More Answers (1)

Star Strider
Star Strider on 15 Mar 2019
If you only want to reverse the direcrtion of the z-axis, try this (after the surf call):
set(gca, 'ZDir','reverse')
The other axes remain unaffected.
  1 Comment
Sagar Chawla
Sagar Chawla on 3 Apr 2022
How to change the position of axis. Like z in place of x and y in place of z.

Sign in to comment.

Categories

Find more on Graphics in Help Center and File Exchange

Products


Release

R2018b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!