Pencil Code Reference > jumpxy
The turtle starts in the middle of the window, at (x, y) coordinates (0, 0).
jumpxy x, y moves by an xy offset in
traditional Cartesian coordinates. In this coordinate system,
each unit is one pixel, and each graph paper grid square is 25 units.
The mathematical coordinate axes are used, placing (0, 0)
at the middle with x increasing to the right and y increasing upward.
A vector represented as an array of two numbers can be used.
jumpxy [x, y] is treated the same as
jumpxy x, y.
jumpxy will not trace lines if a pen is being used.
jumpxy does not affect the
turtle rotation, only its position.
pen peru jumpxy 50, 50 jumpxy -75, -25 jumpxy 0, -50 jumpxy -125, 100
When passing a single location object to
jumpxy, it supports
an optional second argument limiting the distance of the motion. When the
second argument is given, the turtle will move towards the location, but
no farther than the limiting distance in pixels.
The following program will move the turtle towards the last mouse event twice per second, but will move no more than 10 pixels each time.
pen green forever 2, -> jumpxy lastmouse, 10
In all these uses,
jumpxy moves the turtle without changing
its direction (the way it's facing).
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