The package SemiAlgebraicTypes.jl provides implementation of semialgebraic sets such as points, spheres, lines, cylinders, cones, ellipsoids, meshes, bspline functions, ...
To install the package within julia:
] add SemiAlgebraicTypes(] key switches to the pkg mode)
To install the latest version:
] add https://github.com/AlgebraicGeometricModeling/SemiAlgebraicTypes.jlTo use it within julia:
using SemiAlgebraicTypes
A = point(0.,0.,0.)
B = point(0.,0.,1.)
C = point(0.,0.,3.)
l0 = line(A,B)
c0 = cylinder(A,B,0.2)
c1 = cone(C,B,0.7)
s0 = sphere(c0.pt1,c1.radius)
m = mesh([[cos(i*pi/5), sin(i*pi/5), 0.0] for i in 1:10], Edge[], [[1,i,i+1] for i in 1:9])
B1 = BSplineBasis(LinRange(0., 2., 4), 3)
B2 = BSplineBasis(LinRange(0., 1., 3), 3)
f1 = BSplineCurve(rand(3,5), B1); f1(0.)
f2 = BSplineSurface(rand(3,5,4), B1,B2); f2(0.,0.)
f3 = BSplineVolume(rand(3,5,4, 4), B1,B2, B2); f3(0.,0.,0.)
