@Override
	protected int convertRowToOrdinal(int rowIndex) {
		int numRowComponents = getNumComponents();
		if (rowIndex < 0 || rowIndex > numRowComponents) {
			return -1;
		}
		if (rowIndex == numRowComponents) {
			return viewComposite.getNumComponents();
		}
		if (isShowingUndefinedBytes()) {
			return rowIndex;
		}
		DataTypeComponent[] definedComponents = viewComposite.getDefinedComponents();
		return definedComponents[rowIndex].getOrdinal();
	}
Returns an attribute value for the cell at <I>columnIndex</I>
and <I>rowIndex</I>.

@param	rowIndex	the row whose value is to be looked up
@param	columnIndex 	the column whose value is to be looked up
@return	the value Object at the specified cell
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/StructureEditorModel.java