Projection of 3-dimensional to 2-dimensional points using a 4x4
viewing transformation matrix. Mainly for adding to
perspective plots such as persp
.
trans3d(x, y, z, pmat)
numeric vectors of equal length, specifying points in 3D space.
a \(4 \times 4\) viewing transformation matrix,
suitable for projecting the 3D coordinates \((x,y,z)\) into the 2D
plane using homogeneous 4D coordinates \((x,y,z,t)\);
such matrices are returned by persp()
.
a list with two components
the projected 2d coordinates of the 3d input (x,y,z)
.
<!-- %% it would be nice to have an independent example --> ## See help(persp) {after attaching the 'graphics' package} ## -----------
Run the code above in your browser using DataCamp Workspace