TYPE: SOP
TITLE: Grid SOP

The Grid operation allows you to create grids and rectangles using polygons, 
a mesh, a Bezier surface or a NURBS surface, or you can make single or
multiple polylines with open polygons or individual points.

Parameters
    Primitive Type    - Type of Geometry to create.

    Connectivity - Applies to Polygons and Meshes only.
        Rows         - Creates horizontal lines, which are open polygons.
        Columns      - Creates vertical lines, which are open polygons.
        Rows & Cols  - Both Rows and Columns. All polygons are open.
        Triangles    - Build the grid with Triangles.
        Quads        - Default grid connection is four-sided quadrilaterals.

    Orientation Plane - Orientation of grid.

    Size              - Width and Height of the grid.            /sizex  /sizey
    Center            - Position of the center of the grid.      /tx /ty /tz
    Rows, Columns     - Number of rows and columns in the grid,  /rows /cols
                        or hull.

    U Order, V Order  - The order of NURBS or Bezier surface.   /orderu /orderv

    End-point interpolate in U, End-point interpolate in V - Extends
                        the surface to touch the end 
                        points in the U and V directions.

