Real-time Sectional Area Curve
Orca3D allows the real-time monitoring of the sectional area curve (SAC), but also offers to overlay a reference curve (from target values, for example from previous designs or known guidelines) onto the real-time SAC. In the “Define Design Condition” dialog, check the “Real-Time Sectional Area Curve” radio button, then hit the “Reference Values” button.
The next dialog will let you input reference locations and section area values, and/or import from a csv file:
The SAC popup window will then dynamically update as you edit the hull form: