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Parametric surface in a 3-d plot

Source: R/plotcmds.R
tda_plsurf3.Rd

TDA's plsurf3: x, y, z as expressions in u and v.

Usage

tda_plsurf3(
  fx,
  fy,
  fz,
  u_range = c(-1, 1, 5, 10),
  v_range = c(-1, 1, 5, 10),
  ...
)

Arguments

fx, fy, fz

coordinate expressions in u and v (TDA syntax).

u_range, v_range

c(from, to, grid_lines, points_per_line).

...

passed to tda_run.

Value

path of the PostScript file, invisibly.

Examples

# z = sin(u) cos(v) over a 5 x 5 grid of lines, 12 points each
f <- tda_plsurf3(fx = "u", fy = "v", fz = "sin(u) * cos(v)",
                 u_range = c(-2, 2, 5, 12),
                 v_range = c(-2, 2, 5, 12))
tda_plot_ps(tda_read_ps(f))

# tda_pl_surface3() adds the same surface to a tda_ps3() session