Report the coordinates of the patches
at the given distances of the turtles
and given angle
left of their headings
.
patchLeft(world, turtles, dist, angle, torus = FALSE) # S4 method for worldNLR,agentMatrix,numeric,numeric patchLeft(world, turtles, dist, angle, torus = FALSE)
world 


turtles 

dist  Numeric. Vector of distances from the 
angle  Numeric. Vector of angles in degrees by which the 
torus  Logical to determine if the 
Matrix (ncol
= 2) with the first column pxcor
and the second
column pycor
representing the coordinates of the patches
at dist
distances of the turtles
and angle
to the left of their headings
.
The order of the patches
follows the order of the turtles
.
If a given dist
value is negative, then the turtle
would look backward.
If a given angle
value is negative, then the turtle
would look to the right.
If torus = FALSE
and the patch
at distance dist
of a turtle
and angle
degrees to the left of its heading
is outside the
world
's extent, NA
are returned for the patch
coordinates. If torus = TRUE
, the patch
coordinates from a wrapped world
are returned.
Wilensky, U. 1999. NetLogo. http://ccl.northwestern.edu/netlogo/. Center for Connected Learning and ComputerBased Modeling, Northwestern University. Evanston, IL.
Sarah Bauduin
w1 < createWorld(minPxcor = 0, maxPxcor = 9, minPycor = 0, maxPycor = 9) t1 < createTurtles(n = 1, coords = cbind(xcor = 2, ycor = 2), heading = 90) patchLeft(world = w1, turtles = t1, dist = 2, angle = 90)#> pxcor pycor #> [1,] 2 4