Plot Gradient Trajectories

Visualizes gradient flow trajectories from sample points on a contour plot.

Usage

gradient.trajectories.plot(grid, f.grid, sample.points = NULL, spacing = 10)

Arguments

grid

Grid object from create.grid

f.grid

Matrix of function values

sample.points

Matrix of (i,j) indices for sample trajectories (NULL for automatic)

spacing

Integer spacing between sample points (default 10)

Value

Invisible NULL

Examples

if (FALSE) { # \dontrun{
grid <- create.grid(50)
f <- function(x, y) sin(3*x) * cos(3*y)
f.grid <- evaluate.function.on.grid(f, grid)
gradient.trajectories.plot(grid, f.grid, spacing = 15)
} # }