(Added: June 21, 2009)
The Transforms sheet is opened by clicking on the Transforms button of the Spreadsheet window. This is where you define geometric transforms (the NEC-2 GM cards) that you can use in the Transform column of the spreadsheet.
Transforms can be used to rotate or move an element or set of elements. It allows you to rotate a set of elements.
The name of a variable must begin with either an alphabet or with the underscore character. The rest of the name should consist of alphabets, numbers or the underscore character. Spaces are not allowed inside a variable name. Upper case characters are unique from lower case characters. An element in the spreadsheet refers to a transform with this name.
The other cells of the Transforms table correspond to the values that are documented in the GM card of NEC-2. The cells can contain either constants, variables or formulas.
You use the + (plus) below the variables table to add a new variable.
If there is no selection in the table when you click on the + button, a variable will be added to the top of the table. If you have selected a row in the table, the variable will be added below the selected row.
You remove a variable by selecting the row the variable is in and clicking on the - (minus) button.
Click on the Close button to close the Transform sheet.