When a new install of Blender opens, there is a camera, a light source, a cube and a matrix of vectors on the x,y 16x16 plane.
As I do not know what this is called, I cannot search for it to switch it off or change its values. I've checked Neal Hirsig's grand reference, and gone through the User Preferences, but cannot find what I'm looking for.
What is this reference vector matrix called? How can I modify it? I want to toggle it into/out from my 3D ViewPort Editor Window.
EDIT: OK we know it is now called the grid floor, but I need to toggle it programmatically and didn't ask for that at first.
bpy.types.SpaceView3D.show_floor = False
does not appear to work in code.