graphics.sagews

p1=point((-2,0),size=80,color='green',zorder=8)
p2=point((0,0),size=200,color='yellow',zorder=7)
p3=point((2,0),color='black')
p4=point((0,8),color='black')
l1=line([(-2,0),(0,0)],zorder=1,color='black')
l2=line([(0,0),(2,0)],zorder=2,color='black')
l3=line([(-2,0),(0,8)],zorder=3,color='black')
l4=line([(0,0),(0,8)],linestyle='dashed',zorder=4,color='black')
l5=line([(2,0),(0,8)],zorder=5,color='black')
e1=ellipse((0,0),2,1,color='black')
t1=text("d",(-1.4,4),fontsize=20,color='black')
t2=text("1au",(-1,-.4),fontsize=15,color='black')
t3=text("p",(-.3,6),fontsize=15,color='black')
t4=text("Alpha Centauri",(0,8.3),color='black')
t5=text("Earth",(-1.2,0.3),color='black')
t6=text("Sun",(1,0.3),color='black')
t7=text("x",(0.4,3.2),fontsize=15,color='black')
container1=Graphics()
container1=p1+p2+p3+p4+l1+l2+l3+l4+l5+e1+t1+t2+t3+t4+t5+t6+t7
show(container1,axes=False,aspect_ratio=1)
container1.save('star_graphic.pdf',axes=False)

p1=point((0.5,0),zorder=6,color='black')
p2=point((3.5,0),zorder=5,color='black')
p3=point((0.5,1),zorder=4,color='black')
l1=line([(0.5,0),(3.5,0)],zorder=1,color='black')
l2=line([(0.5,0),(0.5,1)],zorder=2,color='black')
l3=line([(3.5,0),(0.5,1)],zorder=3,color='black')
t1=text("d",(0.4,0.5),fontsize=15,color='black')
t2=text("x",(2,-0.1),fontsize=15,color='black')
t3=text("Theta",(2.95,0.07),fontsize=15,color='black')
t4=text("A",(0.43,1.05),fontsize=20,color='black')
t5=text("B",(0.43,-.05),fontsize=20,color='black')
t6=text("C",(3.45,0.08),fontsize=20,color='black')
container2 = p1+p2+p3+l1+l2+l3+t1+t2+t3+t4+t5+t6
show(container2,axes=False,aspect_ratio=1)
container2.save('basic_parallax_example.pdf',axes=False)