grid_line {jpgrid}R Documentation

Draw line segments between grid square codes

Description

If grid and grid_to are both vectors, the line between grid and grid_to is drawn (using Bresenham's line algorithm). If grid is a list, The path lines for each element in the grid will be drawn.

Usage

grid_line(grid, grid_to = NULL, close = FALSE, skip_na = FALSE)

Arguments

grid

A grid vector or a list of grid vector.

grid_to

A grid vector.

close

Should the path of each element be closed when grid is a list?

skip_na

Should skip the NA grid and connects the paths? FALSE by default.

Value

A list of grid vectors.


[Package jpgrid version 0.4.0 Index]