Turtle, Observer, Patch

setshown?-at xcor ycor value

Parameters:
xcor Number The distance in the x direction
ycor Number The distance in the y direction
value Boolean An expression that returns true or false

Description:
Sets the visibility of the turtle xcor units in the x direction and ycor units in the y direction away from the caller to value.

Examples:
setshown?-at 1 1 true sets the visibility of the turtle one unit to the right and one unit above the caller to true.

Related Commands:
hideturtle shown?-at showturtle