GRID ==== Python object: ``phenotypic.schema._grid.GRID`` Constants for grid structure in the PhenoTypic module. .. list-table:: Category: **Grid** :header-rows: 1 * - Column label - Description * - ``Grid_RowNum`` - The row idx of the object * - ``Grid_RowIntervalStart`` - The start of the row interval of the object * - ``Grid_RowIntervalEnd`` - The end of the row interval of the object * - ``Grid_ColNum`` - The column idx of the object * - ``Grid_ColIntervalStart`` - The start of the column interval of the object * - ``Grid_ColIntervalEnd`` - The end of the column interval of the object * - ``Grid_RowMajorIdx`` - The row-major index of the object. Row major is the standard in most programming and data science array libraries. Used for indexing into 2D arrays. * - ``Grid_ColMajorIdx`` - The col-major index of the object in an array. Lab automation logic uses column-major (column-wise) indexing for well plate operations because 96-well plates are physically arranged with 8 rows (labeled A-H) and 12 columns (numbered 1-12), and this layout maps directly to how multichannel pipettes operate.