Current grid
The current grid is a plane of grid points or grid lines that may be displayed in a Graphic view; it does not form part of the model but it may be used in conjunction with various sculpt commands to edit the model. Coordinates are reported with respect to current grid axes.
The current grid is defined by reference to a grid plane, a grid layout and a set of grid lines.
When displayed in a Graphic view the current grid is represented as grid points or grid lines on the current grid plane. Grid points are displayed on the current grid plane at the spacing specified by the current grid layout. Grid lines, which, by definition, are in the global XY plane, are displayed projected onto the current grid plane, but not at all if the current grid plane is vertical.