A = Intersect(xAxis, yAxis)
B = Point(xAxis)
C = (1, 2)
D = Point(yAxis)
poly1, a_1, b, c, d = Polygon(A, B, C, D)
E = Intersect(zAxis, Plane_1)
e = Line((0, 0, 0), (0, 0, 4))
f = Line((1, 0, 0), (1, 0, 5))
BaseRegion = PolyLine((0, 0, 0), (1, 0, 0), (1, 2, 0), (0, 2, 0))
Surface = PolyLine((0, 0, 4), (1, 0, 5), (1, 2, 3), (0, 2, 2), (0, 0, 4))
l = Line((0, 2, 0), (0, 2, 2))
m = Line((1, 2, 0), (1, 2, 3))
c1 = 0.65 (slider from 0 to 1, step 0.05)
c2 = 0.95 (slider from 0 to 2, step 0.05)
F: (c1, (-0.9))
G: (c1, c2)
u = Vector(F, G)
g = Plane(A, a)
o: x = c1
h = IntersectPath(Plane_1, o)