I often use a small, but very good, program to rough out boats. It draws the hull and deck up using bezier splines.
Here is what it looks like.
You can see the control points used to create the splines. They are the red and yellow dots.
I then use the forms function to make pdfs of the forms I use to recreate the hull in rhino by importing the resultant pdfs.
The imported pdf curves are actually a large number of straight lines. Here is what I mean. Here is the curve with the points turned on. I know they are straight lines because the curvature graph shows nothing, and the rebuild function shows them as degree 1.
I am unable to recreate the bezier splines in rhino. The rebuild function gives results that are much different to the pdf curves. Here is the same curve as an example of what I mean.
Is there a rhino curve function that will:
- convert the series of straight lines into a curve, and
- enable a recreation, or close to, the original bezier spline?
For some added clarification, here is that original curve shown on a grid.