Greetings,
I tried to build a single-curved-surface lean outward in a constraint angle, let’s said 6 degree. I used Extrude Surface Tapered command and found it do not meet my requirement. So i tried some method, i drew different lines, one is a half circle, one is non-uniform convex, one is non-uniform S-shape-line , there is only the result for the half circle is qualified.
My analysis method is simple, i select a random point in the surface bottom edge, and link it with a perpendicular point of the top edge into a line. Then, i draw a straight line start from the initial point I selected before, in Z direction. So now i have two lines, I could calculate the angle between them. For the free form line, after the extrusion, the angles are not the same one, slightly different,
I guess it is because of the geometrical variables. If I want to have a surface which I expected, how could I make it? Is the command still not as good as we thought?
Thanks.
<a class=“attachment” href=“https://global.discourse-cdn.com/mcneel/uploads/default/15735/572d12ec292832e4.3dm”>ExtrudeCrvTapered Test.3dm (240.7 KB)
Analysis of angles.gh (14.9 KB)