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These primitives effect the axis and grid, drawn in the Draw zone.

Primitive	Alt	Action
Axis nn XAxis nn YAxis nn SetAxisColor n XAxis? YAxis? StopAxis	SAC	Draw X and Y axis with division size of nn pixels. Draw X (horizontal) axis with division size of nn pixels. Draw Y (vertical) axis with division size of nn pixels. Set axis color to n. (See colors) Return true if X axis is drawn, else false. Return true if Y axis is drawn, else false. Delete axis.
Grid mm nn SetGridColor n Grid? StopGrid	SGC	Draw a grid with division sizes of mm x nn pixels. Set grid color to n. (See colors) Return true if grid is drawn, else false. Delete grid.

Underlined Set can be removed from a primitive name in order to return information.
eg. SetHeading sets the heading of the turtle. Heading returns the heading of the turtle.

Note

A 'ClearScreen' is performed after drawing any axis or grid. This results in ShowTurtle and screen and pen color as as set up in Preferences.