About Calculation Modifiers

A calculation modifier is a formula that you can apply to a space to change the calculated results of its associated area or perimeter values. Calculation modifiers can also be applied to a zone to change the calculated results of all spaces attached to that zone. You might want to change calculated results for number of purposes; for example, to account for plaster deductions or the tiling in a bathroom.

By default, a calculation modifier is applied only to the base area and base perimeter of the space. To apply the modifier to the net, usable, and gross boundaries of a space, you need to create and apply a property set definition that contains properties for the calculated area and perimeter values of the those boundaries.

Calculation modifiers work cumulatively. When you apply several different modifiers to a space or a zone, they are all applied. Therefore, it is important to define the order in which they are used.

Example: You have a space area of 25 square meters. You want to apply 2 different calculation modifiers to it. Calculation modifier A deducts a value of 0.3 square meters for a column. Calculation modifier B divides the space by 2 (in some international calculation schemes, this is used for calculating balconies).

• If you apply the plaster deduction first and the division second, you get the following result:

  Calculation Modifier A: 25 m ² - 0.3 m ² = 24.7 m ²

  Calculation Modifier B: 24.7 m ² / 2 = 12.35 m ²

• If you apply the division first and the plaster deduction second, you get the following result:

  Calculation Modifier B: 25 m ² / 2 = 12.5 m ²

  Calculation Modifier A: 12.5 m ² - 0.3 m ² = 12.2 m ²

You can set the order of calculation modifiers in the properties of the space.