MATLAB: [help] how to project 3D objects to plane (not coordinate plane)

MATLABprojectsphere

I have objects as a figure attached.

I want to project objects (blue color and small red color) to plane (yellow color) follow perpendicular.

I can project object to coordinate plane (oxy, oyz, oxz) by command: surf(x,y,0*z), surf(0*x,y,z), surf(x,0*y,z). How to project to any plane?

Thank

Best Answer

You fix an angle theta to which you want to rotate the points....and make Rotation matrix and multiply all the points with that rotation matrix.

Go through the link:

http://in.mathworks.com/matlabcentral/answers/93554-how-can-i-rotate-a-set-of-points-in-a-plane-by-a-certain-angle-about-an-arbitrary-point

Related Solutions

MATLAB: Plane y=x

% plane z=x,
figure
hold on
fsurf(@(x,y) x)
% plane z = y
fsurf(@(x,y) y)
view(3)

MATLAB: Rotate a plane onto another plane

David, let me introduce you to geom3d. I'm a fan of, user of, and occasional contributor to it.

http://www.mathworks.com/matlabcentral/fileexchange/24484-geom3d

With it you can do something like the following:

points=[0 0 3; 0 1 2.6; 0 1.3 2.3; 0 2.2 1  .8; 0 2.5 0.8; 0 2.8 0; 0 2.2 -0.8; 0 1.9 -1.1; 0 1.3 -1.8; 0 1 -2.5; 0 0 -3; 0 -0.5 -2.7; 0 -1.1 -2.3; 0 -1.8 -1.8; 0 -2.1 -1; 0 -2.5 0; 0 -2.2 0.5; 0 -1.8 1.8; 0 -1.5 2.3; 0 -0.8 2.8;0 0 3];
vec1=[-0.8994 -0.1332 0.4160];
vec2=[0.0254 -0.9668 -0.2540];
myPlane = [0 0 0 vec1 vec2];
TF = createBasisTransform(myPlane,'global')
newPoints = transformPoint3d(points, TF)

I have a feeling that the above isn't quite what you're looking to do (i'm not sure if you're trying to transform points from or to a global plane...), but I think it will help. By any chance are you trying to make a curved planar reformation?

Best Answer

Related Solutions

MATLAB: Plane y=x

MATLAB: Rotate a plane onto another plane

Related Question