plotting a point (4x1) matrix in 3d Plot on matlab

Question

How can i plot the New_P in 3D i'm using robotic toolbox peter corke i should use trplot() function but it's not working it shows that it takes 3x3 or 4x4 any way to plot it on 3d

 P = transpose([2,3,4,0]);
 New_P = trotx(45) * P
trplot(New_P)

Answer 1

Please read on how to ask questions properly . If you read on trplot , it obviously says that:

trplot(T, options) draws a 3D coordinate frame represented by the homogeneous transform T (4x4) .

and

trplot(R, options) as above but the coordinate frame is rotated about the origin according to the orthonormal rotation matrix R (3x3) .

I do not know how trtox is defined and what the class of trtox(45) is, but P is a 4x1 vector and therefor New_P most likely does not seem to be a proper input for trplot , hence the complaint on the input size.