23.4. Calculation operations using drawing elements and custom objects
A simple calculation feature has been added to drawing elements to give them some additional functionality. User may import excel sheets, sum the tables and draw charts all using user-drawn objects.
To begin with, it is important to know how the “Acting class” property works. It can be found in any of the drawing element’s properties. There is a property called “Acting class” which defines what the element is supposed to do.
