Maxsurf Pro has the ability to perform parametric transformations of hull shapes using the Parametric Transformation command in the Data menu. Essentially, it uses the Lackenby method. This process involves moving the columns fore and aft, while not changing the section shapes (unless scaling them) i.e. all y-coordinates move by ratio of beams, all z by ratio of draughts etc. The transformation moves stations fore and aft until the required parameter(s) specifications are met. A key quality of this function is that it maintains the fairness of the hull to a very high degree during the transformation process.
The Parametric Transformation command displays a dialog that is used to perform the transformation on the design's visible surfaces.
The parameters that can be specified are divided into two groups:
After doing a parametric transformation you may want to be able to do a Hull Shape Comparison. Also see the section on Parametric Transformation Restrictions on page 172.
View a video demonstrating how the Parametric Transformation can be used to
change the design parameters of a ship with a parallel mid body whilst
maintaining the parallel mid body length.
Watch a short video that shows you how to resize the trawler sample design and apply a
simple parametric transformation on a simple hullshape.
See: