create geometry point cloud

cylinder

According to the geometric characteristics of a cylinder, we know the distance form a point 'P' on the cylinder surface to its axis is equal to the radius r0, P0 (x0, y0, z0) is a point on the cylindrical axis, (a, b, c) is the cylindrical axis vector, and r0 is the radius of the cylindrical bottom circle. The distance from any point on the cylindrical surface to its axis is radius r0, that is:

https://blog.csdn.net/qq_30815237/article/details/90405087

we can use this equation to fit a cylinder and get the 7 parameters(r,x0,y0,z0,a,b,c) of the cylinder

Alternatively, if we know the 7 parameters of a cylinder, we use its parametric equation to create a cylinder

the parametric equation of cylinder is:

https://blog.csdn.net/inerterYang/article/details/111998278

Pull the code

git clone https://github.com/Noel-Gallagher-Highflyingbirds/geometry.git
cd geometry
pip install reqirements

test

python main.py

Also available at: https://blog.csdn.net/qq_41102371/article/details/121482141