1832.sagews

Plotting points and lines in Sage.

A=[0,0]
B=[1,0]
C=[1,1]
D=[0,1]
show(line([A,B,C,D])+point(C, color="red", pointsize=50), axes=False, aspect_ratio=1)

show(polygon([A,B,C,D], color="green")+point(C, color="red", pointsize=50), axes=False, aspect_ratio=1)

An example of using Sage for 3D plotting.

c11 = [1,1,1]
c12 = [-1,1,1]
c13 = [-1,-1,1]
c14 = [1,-1,1]

c21 = [1,1,-1]
c22 = [-1,1,-1]
c23 = [-1,-1,-1]
c24 = [1,-1,-1]

cf1=[c11,c12,c13,c14]
cf2=[c21,c22,c23,c24]



show(sum([polygon(cf1, color="red"), 
         polygon(cf2),
         line([c11,c21], color="black", thickness=3),
         
         line([c12,c22]),
         line([c13,c23]),
         line([c14,c24]), 
         point([2,2,2], color="green"),    # these points are to enlarge the viewing area
         point([-2,-2,-2], color="green"),
         point([0,0,0])
         ]), 
         frame=False, center=[0,0,0])

show(icosahedron(center=(0,1,0), color='yellow'), frame=False)