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Would be great to have the ability to place a plane at an angle through the axis of a cylindar without having to go through the intermediate step of adding the axis.
Plane Along Path is a quick way of achieving this.
Select one of the circular edges, you can manipulate the angle by changing the starting point, say you want a plane at 45° (45/360) starting point at 0,125.
True though if my goal were merely to have a pragmatic solution that works for me now then I'd just have silently stuck with the axis and then plane at an angle.. but I want the application to get better 🙂
There are many examples in which a plane (or axis or point) is naturally defined from your selection - but it requires a couple of extra steps to get what you want or worse, it's a real puzzler! Say how to get the best-fitting plane through 4 points or two non-planar edges? Or fitting a face with > 3 vertices? Or how to select the center of a face? Or the center of a volume? Or n-sect a line? Etc. etc, The issues arise in particular when you get breps from t-splines.
Best-fitting plane through 4 points or two non-planar edges?
Or fitting a face with > 3 vertices?
The former is a special case of the latter. Assuming they're not all coplanar (or wore colinear or on the same point) this is a very simple problem. It's just a matter of doing a principal component analysis (essentially find the mean of the points, find the pair of vectors that best fit the data, and then pick the plan defined by the span of those two vectors from the mean / center point)
Or how to select the center of a face?
Arithmatic mean. Trivially simple.
Or the center of a volume?
Same (and / incidentlly the center of volume / center of mass and higher moments of inertia would be extremely useful in mechatronics designs 🙂
