2D Rectified Grid in 3D CRS Method urn:ogc:def:method:WCS:1.1:2dGridIn3dCrs Method for use by a Coordinate Conversion defining a 2D GridCRS in a 3D baseCRS, based on CV_RectifiedGrid in ISO 19123 so the grid can be rotated and skewed in this baseCRS. The reverse direction (from the GridCRS to the baseCRS) shall be as specified by the equations: BaseX = origin(1) + offsets(1,1) * GridX + offsets(2,1) * GridY BaseY = origin(2) + offsets(1,2) * GridX + offsets(2,2) * GridY BaseZ = origin(3) + offsets(1,3) * GridX + offsets(2,3) * GridY where GridX, GridY are position coordinates in the 2D grid CRS BaseX, BaseY, BaseZ are position coordinates in the 3D base CRS origin(1), origin(2), origin(3) are the three coordinates of the grid origin position in the 3D base CRS offsets(1,1),offsets(1,2), offsets(1,3) are the grid spacings of the first grid axis in the 3D base CRS offsets(2,1), offsets(2,2), offsets(2,3) are the grid spacings of the second grid axis in the 3D base CRS The forward direction (from the baseCRS to the GridCRS) equations are not included here. 3 2 origin3d urn:ogc:def:parameter:WCS:1.1:origin3d This parameter shall be encoded as a wcs:Origin element, giving the three origin coordinates in the 3D base CRS of this GridCRS. offsets3d urn:ogc:def:parameter:WCS:1.1:offsets3d This parameter shall be encoded as a wcs:Offsets element, giving the grid offsets in the two grid axes, each in the 3D base CRS relative to the specified origin. This wcs:Offsets shall contain six values, the first three values shall specify the grid offset for the first grid axis, and the second three values shall specify the grid offset for the second grid axis.